RN52-I/RM - Microchip Technology

www.rovingnetworks.com Version 1.0 1/27/13 page 1

Advanced Information

RN52-DS

RN52 Bluetooth Audio Module

Features:

• Fully qualified Bluetooth® version 3.0 module,

fully compatible with Bluetooth version 2.1+EDR,

1.2, and 1.1

• Software configurable through commands over

UART console interface

• Dedicated GPIO pins enable MCUs to access

control and status functions efficiently

• Postage-stamp-sized form factor, 13.5 x 26.0 x

2.7 mm

• Embedded Bluetooth stack profiles: A2DP,

AVRCP, HFP/HSP, and SPP

• Dual-channel, differential audio input and output

for highest quality audio

• Supports iAP profile to discover iOS devices and

apps

• Integrated amplifier for driving 16 Ω speakers

• UART (SPP) data connection interfaces

• External audio CODECs supported via S/PDIF

and I2S interface

• Castellated SMT pads for easy and reliable PCB

mounting

• Environmentally friendly, RoHS compliant

• Certifications: FCC, ICS, CE

• Bluetooth SIG certified

Applications:

• High-quality, 2-channel audio streaming

• Wireless stereo headsets

• Automotive hands free audio

• Wireless audio docking station for smartphones

• Wireless speakers

• Intercom push-to-talk audio connection

• Remote control for media player

• Medical devices

• Computer accessories

RN52 Block Diagram:

PCB Antenna

Bluetooth 3.0

RF Baseband

RN52

UART

USB

I2S

S/PDIF

11 GPIO

Pins

1 AIO

16-Bit RISC MCU

Audio DSP

16-Bit Stereo

CODEC

16-MBit Flash

2 LEDs

MIC

Speake

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Advanced Information

RN52-DS

1.0 DEVICE OVERVIEW

Roving Network’s RN52 Bluetooth audio module pro-

vides a highly integrated solution for delivering high-

quality stereo audio in a small form factor. It combines

a class 2 Bluetooth radio with an embedded DSP pro-

cessor. The module is programmed and controlled with

a simple ASCII command language

The RN52 module complies with Bluetooth specifica-

tion version 3.0. It integrates RF, a baseband controller,

etc., making it a complete Bluetooth subsystem. The

RN52 supports a variety of profiles including HSP/HFP,

A2DP, AVRCP, SPP, and iAP. It provides a UART inter-

face, several user programmable I/O pins, stereo

speaker outputs, microphone inputs, and a USB port.

Table 1-1 provides the general specifications for the

module. Tab l e 1 - 2 and Table 1-3 provide the module’s

weight, dimensions, and electrical characteristics.

Figure 1-1 shows the module’s dimensions and

Figure 1-2 shows recommended landing pattern and

layout.

TABLE 1-1: GENERAL SPECIFICATIONS

Specification Description

Standard Bluetooth 3.0, class 2

Frequency Band 2.4 ~ 2.48 GHz

Modulation Method GFSK, PI/4-DQPSK, 8 DPSK

Maximum Data Rate 3 Mbps

RF Input Impedance 50 ohms

Interface UART, GPIO, AIO, USB, SPI, speaker, microphone

Operation Range 10 meters (33 feet)

Sensitivity -85 dBm at 0.1 % BER

RF TX Power 4 dBm

TABLE 1-2: WEIGHT & DIMENSIONS

Specification Description

Dimensions 26.0 mm x 13.5 mm x 2.7 mm

Weight 1.2 g

TABLE 1-3: ELECTRICAL CHARACTERISTICS

Specification Description

Supply Voltage 1.8 ~ 3.6 V DC

Working current Depends on profiles, 30 mA typical

Standby current (disconnected) < 0.5 mA

Temperature -40ºC to +85ºC

ESD JESD22-A224 class 0 product

Humidity 10% ~ 90% non-condensing

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Advanced Information

RN52-DS

FIGURE 1-1: MODULE DIMENSIONS

FIGURE 1-2: RECOMMENDED PCB FOOTPRINT

0.00

2.55

0.85

3.75

4.95

6.15

7.35

8.55

9.75

10.95

12.65

13.50

0.0

26.00

PCB Outline: +/- 0.13 mm

PCB Thickness: +/- 0.100 mm

Tolerances:

(Top View)

Dimensions are in millimeters

21.20 21.40

20.00

18.80

17.60

16.40

15.20

14.00

12.80

11.60

10.40

9.20

8.00

6.80

5.60

4.40

3.20

2.00

(Side View)

26.00

21.40

0.70

0.00

0.80

2.70

0.75

12.75

0.8mm

1.6mm

0.80mm

Dimensions are in millimeters

0.00

2.55

0.85

3.75

4.95

6.15

7.35

8.55

9.75

10.95

12.65

13.50

0.0

26.00

21.20 21.40

20.00

18.80

17.60

16.40

15.20

14.00

12.80

11.60

10.40

9.20

8.00

6.80

5.60

4.40

3.20

2.00

3.25

4.65

6.05

7.45

8.85

10.25

20.70

Ground Pads

0.8 x 1.0 mm

Host Ground Plane Edge

(See Mounting Details)

(Top View)

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Advanced Information

RN52-DS

Figure 1-3 shows the pinout and Ta b l e 1 - 4 describes

the module’s pins.

FIGURE 1-3: PIN DIAGRAM

RN52

Top View

GND

GPIO7

GPIO6

PWREN

VDD

PCM_IN

PCM_OUT

PCM_SYNC

PCM_CLK

GND

GPIO3

GPIO2

AICO0

GPIO4

GPIO5

GPIO12

GPIO13

GPIO11

GPIO10

GPIO9

USBD-

USBD+

UART_RTS

UART_CTS

UART_TX

UART_RX

GND

SPKR_L+

SPKR_R+

SPKR_L-

SPKR_R-

AGND

MIC_R-

MIC_L-

MIC_R+

MIC_L+

MIC_BIAS

LED0

LED1

SPI_MOSI

SPI_SCK

SPI_MISO

SPI_SS

GND

TABLE 1-4: PIN DESCRIPTION (PART 1 OF 3) Note 1

Pin Symbol I/O Type Description

1 GND Ground. Ground.

2 GPIO3 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

3 GPIO2 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

4 AIO0 Bidirectional. Analog programmable

input/output line.

5 GPIO4 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

6 GPIO5 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

7 GPIO12 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

8 GPIO13 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

9 GPIO11 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

10 GPIO10 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

11 GPIO9 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

12 USBD- Bidirectional. USB data minus.

13 USBD+ Bidirectional. USB data plus with selectable

internal 1.5-Kohm pull-up resis-

tor.

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Advanced Information

RN52-DS

14 UART_RTS CMOS output, tri-state, with weak internal pull-up. UART request to send active

low.

15 UART_CTS CMOS input with weak internal pull-down. UART clear to send active low.

16 UART_TX CMOS output, tri-state, with weak internal pull-up. UART data output.

17 UART_RX CMOS input with weak internal pull-down. UART data input.

18 GND Ground. Ground.

19 GPIO7 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

20 GPIO6 Bidirectional with programmable strength internal pull-up/down. Programmable input/output line.

21 PWREN Analog. Pull high to power up RN52.

22 VDD 3.3-V power input. 3.3v power input.

23 PCM_IN CMOS input, with weak internal pull down. Synchronous data input, config-

urable for SPDIF_IN or SD_IN

(I2S).

24 PCM_OUT CMOS input, with weak internal pull down. Synchronous data input, config-

urable for SPDIF_OUT or

SD_OUT (I2S).

25 PCM_SYNC Bidirectional with weak internal pull down. Synchronous data sync; WS

(I2S).

26 PCM_CLK CMOS input, with weak internal pull down. Synchronous data clock; SCK

(I2S).

27 GND Ground. Ground.

28 SPI_SS CMOS input with weak internal pull-up. Chip select for Synchronous

Serial Interface active low.

29 SPI_MISO CMOS output, tri-state, with weak internal pull-down. Serial Peripheral Interface (SPI)

output.

30 SPI_CLK Input with weak internal pull-down. SPI clock.

31 SPI_MOSI CMOS input, with weak internal pull-down. SPI input.

32 LED1 Open drain output. LED driver.

33 LED0 Open drain output. LED driver.

34 MIC_BIAS Analog. Microphone bias.

35 MIC_L+ Analog. Microphone input positive, left.

36 MIC_R+ Analog. Microphone input positive, right.

37 MIC_L- Analog. Microphone input negative, left.

38 MIC_R- Analog. Microphone input negative,

right.

39 AGND Analog. Ground connection for audio.

40 SPK_R- Analog. Speaker output negative (right

side).

41 SPK_L- Analog. Speaker output negative (left

side).

42 SPK_R+ Analog. Speaker output positive (right

side).

43 SPK_L+ Analog. Speaker output positive (left

side).

TABLE 1-4: PIN DESCRIPTION (PART 2 OF 3) Note 1

Pin Symbol I/O Type Description

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Advanced Information

RN52-DS

1.1 Audio Interface Circuit

Description

The RN52 audio interface circuit consists of:

• Stereo audio CODEC

• Dual audio inputs and dual outputs

• Configurable S/PDIF and I2S interface

The audio input circuitry has a dual audio input that can

be configured as single-ended or fully differential and

programmed for microphone or line input. It has an

analog and digital programmable gain stage so that it

can be optimized for different microphones. See

Figure 1-4.

1.1.1 STEREO AUDIO CODEC

INTERFACE

The stereo audio CODEC interface has stereo and

mono analog input/output for voice and audio bands. It

supports the IEC-60958 stereo digital audio bus stan-

dards, e.g., S/PDIF and AES3/EBU.

The built-in CODEC uses a fully differential architecture

in the analog signal path, which results in low noise

sensitivity and good power supply rejection while effec-

tively doubling the signal amplitude. It operates from a

1.5 V single power supply and uses a minimum of

external components. See Figure 1-5.

FIGURE 1-4: RN52 AUDIO INTERFACE

BLOCK DIAGRAM

44 GND Ground. Ground.

45 GND Ground. RF ground.

46 GND Ground. RF ground.

47 GND Ground. RF ground.

48 GND Ground. RF ground.

49 GND Ground. RF ground.

50 GND Ground. RF ground.

Note 1: All GPIO pins default to input with weak pull-down.

TABLE 1-4: PIN DESCRIPTION (PART 3 OF 3) Note 1

Pin Symbol I/O Type Description

SPK_L+

SPK_L-

SPK_R+

SPK_R-

MIC_L+

MIC_L-

MIC_R+

MIC_R-

MIC_BIAS

RN52

Audio

MIC &

Bias

System

Mainboard

S/PDIF & I2S

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Advanced Information

RN52-DS

FIGURE 1-5: STEREO CODEC AUDIO INPUT/OUTPUT STAGES

1.1.2 ANALOG-TO-DIGITAL CONVERTER

(ADC)

The ADC consists of two second-order sigma delta

(SD) converters, resulting in two separate channels

with identical functionality. Each ADC supports the fol-

lowing sample rates:

• 8 kHz

• 11.025 kHz

• 16 kHz

• 22.05 kHz

• 24 kHz

• 32 kHz

• 44.1 kHz

The ADC analog amplifier is a two-stage amplifier. The

first stage selects the correct gain for either micro-

phone or line input. See Figure 1-6.

FIGURE 1-6: ADC ANALOG AMPLIFIER BLOCK DIAGRAM

SPK_L+

SPK_L-

MIC_L+

MIC_L-

Input

Amplier

Output

Amplier

SPK_R+

SPK_R-

MIC_R+

MIC_R-

Input

Amplier

Output

Amplier

ΣΔ-ADC

LP Filter

Digital

Circuitry

DAC

RN52

–

Gain 0:7Line Mode/Microphone Mode

Microphone Mode Input Impedance = 6 kΩ

Line Mode Input Impedance = 6 kΩ to 30 kΩ

Bypass or 24-dB Gain -3 to 18 dB Gain

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Advanced Information

RN52-DS

1.1.3 DIGITAL-TO-ANALOG CONVERTER

(DAC)

The DAC consists of two third-order SD converters,

resulting in two separate channels with identical func-

tionality. Each DAC supports the following sample

rates:

• 8 kHz

• 11.025 kHz

• 16 kHz

• 22.05 kHz

• 24 kHz

• 32 kHz

• 44.1 kHz

1.1.4 MICROPHONE INPUT

The RN52 audio input is intended for use from 1 μA at

94 dB SPL to about 10 μA at 94 dB SPL, which requires

microphones with sensitivity between –40 and –60

dBV. MIC_BIAS requires a minimum load to maintain

regulation. MIC_BIAS maintains regulation within

0.199 and 1.229 mA. Therefore, if you use a micro-

phone with specifications below these limits, the micro-

phone output must be pre-loaded with a large value

resistor to ground.

2.0 APPLICATIONS

The following sections provide information on design-

ing with the RN52 module, including restoring factory

defaults, using the LED interface, minimizing radio

interference, solder reflow profile, typical application,

etc.

2.1 Restore Factory Defaults with

GPIO4

You should connect the GPIO4 pin to a switch, jumper,

or resistor so it can be accessed. You can use this pin

to reset the module to its factory default settings, which

is critical in situations where the module has been mis-

configured. To reset the module to the factory defaults,

GPIO4 should be high on power-up and then toggle

low, high, low, high with a 1 second wait between the

transitions.

2.2 LED Interface

The RN52 includes two pads dedicated to driving the

LED indicators. The firmware can control both termi-

nals, and the battery charger can set LED0. The termi-

nals are open-drain outputs; therefore, the LED must

be connected from a positive supply rail to the pad in

series with a current limiting resistor. You should oper-

ate the LED pad (LED0 or LED1 pins) with a pad volt-

age below 0.5 V. In this case, the pad can be thought of

as a resistor, RON. The resistance—together with the

external series resistor—sets the current, ILED, in the

LED. The current is also dependent on the external

voltage, VDD, as shown in Figure 2-1.

FIGURE 2-1: LED INTERFACE

The LEDs can be used to indicate the module’s con-

nection status. Ta b l e 2 - 1 describes the LED functions.

2.3 Apple Authentication for iOS

Devices

The RN52 firmware implements a profile that enables

Bluetooth iAP data connections to applications running

on iOS devices (MFi licensed by Apple). For more infor-

mation about the “Made for iPod” program, visit

http://developer.apple.com/ipod/.

TABLE 2-1: STATUS LED FUNCTION

LED Status Description

LED0 and

LED1

Flashing The RN52 module is discov-

erable.

LED0 only Flashing The module is connected.

LED1 only Flashing The module is connectable.

VDD

LED Forward

Voltage, VF

Resistor Voltage

Drop, VR

Pad Voltage, VPAD

RLED

|LED

LED0 or

LED1

RON = 20 Ω

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Advanced Information

RN52-DS

2.4 Minimizing Radio Interference

When laying out the host PCB for the RN52 module,

the areas under the antenna and shielding connections

should not have surface traces, ground planes, or

exposed via (see Figure 2-2). For optimal radio perfor-

mance, the RN52 module’s antenna end should pro-

trude at least 31 mm beyond any metal enclosure.

FIGURE 2-2: MINIMIZING RADIO INTERFERENCE

2.5 Solder Reflow Profile

The lead-free solder reflow temperature and times are:

•Temperature—230° C, 60 seconds maximum,

peak 245° C maximum

•Preheat temperature—165° ± 15° C, 90 to 120

seconds

•Time—Single pass, one time

To reflow solder the module onto a PCB, use an RoHS-

compliant solder paste equivalent to NIHON ALMIT

paste or OMNIX OM-310 solder paste from Alpha met-

als. See Ta b l e 2 - 2 .

Figure 2-3 and Figure 2-4 show the solder reflow tem-

perature profiles.

21.4 mm

4.6 mm

(Top View)

Dimensions are in millimeters

Keep area around antenna

(approximately 31 mm) clear

of metallic structures for

best performance

31 mm

Edge of Ground Plain

Note: Use no-clean flux and DO NOT water

wash

TABLE 2-2: PASTE SOLDER RECOMMENDATIONS

Manufacturer Alpha Metals

http://www.alphametals.com

NIHON ALMIT Co. LTD

http://almit.co.jp

Part Number OMNIX OM-310 LFM-70W INP

Metal Composition SAC305 (96.5% Sn, 3% Ag, 0.5% Cu) 88% Sn, 3.5% Ag, 0.5% Bi, 8% In

Liquidus Temperature ~220°C ~215°C

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Advanced Information

RN52-DS

FIGURE 2-3: SOLDER REFLOW TEMPERATURE PROFILE

FIGURE 2-4: SOLDER REFLOW CURVE

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Advanced Information

RN52-DS

2.6 Typical Application Schematic

Figure 2-5 shows a typical application circuit with LDO,

stereo audio/microphone PA, USB/UART, AVRCP

switches, and LED0/LED1.

FIGURE 2-5: TYPICAL APPLICATION CIRCUIT FOR A2DP AUDIO STREAMING & AVRCP

REMOTE CONTROL

VBUS

RESET 18

3V 3OU T 16

USBDP 14

USBDM 15

GND

CBUS2

10 CBUS1

VCCIO 1

CBUS3

CBUS4

CBUS0

GND

3DCD

7DSR

6DTR

31 CTS

8RTS

32 RXD

2TXD

VCC 19

OSCI 27

OSCO 28

AGND

TEST

GND

THPAD

FT232RQ

GND

D+

3D-

2VBUS

MTAB 6

USB Mini B / CSR UART

SPI MASTER

SPI _MI SO

SPI _MOSI

SPI _SCK

SPI _SS

3.3V

UART_RX

UART_TX

UART_CTS

UART_RTS

Vin

GND

Vout 3

Tab

TC1262- 3.3V U2

1uF

VBUS 3.3V

100nF

Blue LED

Red LED

Vol Down

Play / Pause

Vol Up

BTN_VOL UP

BTN_VOL DOWN

BTN_NEXT

BTN_PL AY

BTN_PREVI OUS

47R

470

3.3V

GND

D+

3D-

2VBUS

MTAB 6

USB Mini B / RSVD USB

GPIO4 5

GPIO5 6

GPIO12 7

GPIO13 8

GPIO11 9

GPIO10 10

GPIO9 11

USBD- 12

USBD+ 13

UART_RTS 14

UART_CTS 15

UART_TX 16

PCM _CLK 26

SPI _SS

SPI_MISO

SPI_SCK

PCM _IN 23

VDD 22

L ED0

MIC_BIAS

MIC_L+

MIC_R+

MIC_L-

MIC_R-

PCM _OUT 24

GPIO7 19

PCM _SY NC 25

SPI_MOSI

L ED1

PWREN 21

GPIO6 20

UART_RX 17

AIO0 4

GPIO2 3

AGND

SPKR_R-

GND 1

GND 18

GND 27

GND

GPIO3 2

SPKR_L-

GND

SPKR_R+

SPKR_L +

RN52 Module

PI O7

PI O6

L ED0

L ED1

L ED0

L ED1

VBUS

USBD-

USBD+

SPI _MI SO

SPI _MOSI

SPI _SCK

SPI _SS

3.3V

SPKR_R-

SPKR_L -

SPKR_R+

SPKR_L +

Wake

3.3V

PCM_CL K

PCM_SYNC

PCM_OUT

PCM_IN

SPKR_R-

SPKR_L -

SPKR_R+

SPKR_L +

VBUS

47k

22k

PI O3

1uF

C21

1uF

C22

1uF

C13

1uF

C14

1uF

C12

2k2

47nF

C10

47nF

C11

47nF

MI C_L

MI C_R

1uF

C18

22k

R17

22k

R15

47k

R11

22k

R13

47k

R14

47k

R10

47k

R16

22k

R12

1 2

3 4

5 6

7 8

9 10

11 12

13 14

15 16

EXT Connector

PCM_CL K

PCM_SYNC

PCM_OUT

PCM_I N

3.3V

IN1+

IN1-

Vo2 9

BYPASS

IN2-

IN2+

SHUTDOWN 6

GND

VDD 10

Vo1 1

PAD

TPA6112

100uF

C23

100uF

C20

100uF

C17

100uF

C19

10uF

C15

100nF

C16

MBR120

10nF

VBUS

PI O9

3.3V

BTN_VOLDOWN

BTN_PREVI OUS

BTN_PLAY

BTN_NEXT

BTN_VOLUP

PI O2

PI O6

PI O7

MI CL

MI CR

MI C_L

MI C_R

J11

Battery

VBUS

J10

1 2

3 4

5 6

7 8

9 10

PI O4

PWREN

SPKR_R-

SPKR_L -

SPKR_R+

SPKR_L +

MI C_BI AS

MI C_L +

MI C_R+

MI C_L -

MI C_R-

MI C_L +

MI C_R+

MI C_L -

MI C_R-

MI C_BI AS

AI O0

UART_RX

UART_TX

UART_CTS

UART_RTS

USBD-

USBD+

BTN_VOL UP

BTN_VOL DOWN

BTN_NEXT

BTN_PLAY

BTN_PREVI OUS

PI O3

PI O9

PI O2

PI O4

AI O0

MI C_L +

MI C_R+

MI C_L -

MI C_R-

MI C_BI AS

Mic

1J9

Headphones

2k2R70

UART_RX

UART_TX

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Advanced Information

RN52-DS

3.0 REGULATORY APPROVAL

This section outlines the regulatory information for the

RN52 module for the following countries:

• United States

• Canada

• Europe

• Australia

• New Zealand

3.1 United States

The RN52 module has received Federal Communica-

tions Commission (FCC) CFR47 Telecommunications,

Part 15 Subpart C “Intentional Radiators” modular

approval in accordance with Part 15.212 Modular

Transmitter approval. Modular approval allows the end

user to integrate the RN52 module into a finished prod-

uct without obtaining subsequent and separate FCC

approvals for intentional radiation, provided no

changes or modifications are made to the module cir-

cuitry. Changes or modifications could void the user’s

authority to operate the equipment. The end user must

comply with all of the instructions provided by the

Grantee, which indicate installation and/or operating

conditions necessary for compliance.

The finished product is required to comply with all appli-

cable FCC equipment authorizations regulations,

requirements and equipment functions not associated

with the transmitter module portion. For example, com-

pliance must be demonstrated to regulations for other

transmitter components within the host product; to

requirements for unintentional radiators (Part 15 Sub-

part B “Unintentional Radiators”), such as digital

devices, computer peripherals, radio receivers, etc.;

and to additional authorization requirements for the

non-transmitter functions on the transmitter module

(i.e., Verification, or Declaration of Conformity) (e.g.,

transmitter modules may also contain digital logic func-

tions) as appropriate.

3.1.1 LABELING AND USER

INFORMATION REQUIREMENTS

The RN52 module has been labeled with its own FCC

ID number, and if the FCC ID is not visible when the

module is installed inside another device, then the out-

side of the finished product into which the module is

installed must also display a label referring to the

enclosed module. This exterior label can use wording

as follows:

A user’s manual for the product should include the fol-

lowing statement:

Additional information on labeling and user information

requirements for Part 15 devices can be found in KDB

Publication 784748 available at the FCC Office of Engi-

neering and Technology (OET) Laboratory Division

Knowledge Database (KDB) http://apps.fcc.gov/oetcf/

kdb/index.cfm.

3.1.2 RF EXPOSURE

All transmitters regulated by FCC must comply with RF

exposure requirements. OET Bulletin 65, Evaluating

Compliance with FCC Guidelines for Human Exposure

Contains Transmitter Module FCC ID: T9J-RN52

Contains FCC ID: T9J-RN52

This device complies with Part 15 of the FCC Rules.

Operation is subject to the following two conditions:

(1) this device may not cause harmful interference,

and (2) this device must accept any interference

received, including interference that may cause

undesired operation

This equipment has been tested and found to comply

with the limits for a Class B digital device, pursuant to

part 15 of the FCC Rules. These limits are designed

to provide reasonable protection against harmful

interference in a residential installation. This equip-

ment generates, uses and can radiate radio fre-

quency energy, and if not installed and used in

accordance with the instructions, may cause harmful

interference to radio communications. However,

there is no guarantee that interference will not occur

in a particular installation. If this equipment does

cause harmful interference to radio or television

reception, which can be determined by turning the

equipment off and on, the user is encouraged to try to

correct the interference by one or more of the follow-

ing measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment

and receiver.

• Connect the equipment into an outlet on a circuit

different from that to which the receiver is con-

nected.

• Consult the dealer or an experienced radio/TV

technician for help.

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Advanced Information

RN52-DS

to Radio Frequency Electromagnetic Fields, provides

assistance in determining whether proposed or existing

transmitting facilities, operations or devices comply

with limits for human exposure to Radio Frequency

(RF) fields adopted by the Federal Communications

Commission (FCC). The bulletin offers guidelines and

suggestions for evaluating compliance.

If appropriate, compliance with exposure guidelines for

mobile and unlicensed devices can be accomplished

by the use of warning labels and by providing users

with information concerning minimum separation dis-

tances from transmitting structures and proper installa-

tion of antennas.

The following statement must be included as a CAU-

TION statement in manuals and OEM products to alert

users of FCC RF exposure compliance:

If the RN52 module is used in a portable application

(i.e., the antenna is less than 20 cm from persons dur-

ing operation), the integrator is responsible for perform-

ing Specific Absorption Rate (SAR) testing in

accordance with FCC rules 2.1091.

3.1.3 HELPFUL WEB SITES

Federal Communications Commission (FCC):

http://www.fcc.gov

FCC Office of Engineering and Technology (OET) Lab-

oratory Division Knowledge Database (KDB):

http://apps.fcc.gov/oetcf/kdb/index.cfm

3.2 Canada

The RN52 module has been certified for use in Canada

under Industry Canada (IC) Radio Standards Specifica-

tion (RSS) RSS-210 and RSSGen. Modular approval

permits the installation of a module in a host device

without the need to recertify the device.

3.2.1 LABELING AND USER

INFORMATION REQUIREMENTS

Labeling Requirements for the Host Device (from Sec-

tion 3.2.1, RSS-Gen, Issue 3, December 2010): The

host device shall be properly labeled to identify the

module within the host device.

The Industry Canada certification label of a module

shall be clearly visible at all times when installed in the

host device, otherwise the host device must be labeled

to display the Industry Canada certification number of

the module, preceded by the words “Contains transmit-

ter module”, or the word “Contains”, or similar wording

expressing the same meaning, as follows:

User Manual Notice for License-Exempt Radio Appara-

tus (from Section 7.1.3 RSS-Gen, Issue 3, December

2010): User manuals for license-exempt radio appara-

tus shall contain the following or equivalent notice in a

conspicuous location in the user manual or alterna-

tively on the device or both:

Transmitter Antenna (from Section 7.1.2 RSS-Gen,

Issue 3, December 2010): User manuals for transmit-

ters shall display the following notice in a conspicuous

location:

To satisfy FCC RF Exposure requirements for mobile

and base station transmission devices, a separation

distance of 20 cm or more should be maintained

between the antenna of this device and persons dur-

ing operation. To ensure compliance, operation at

closer than this distance is not recommended.

The antenna(s) used for this transmitter must not be

co-located or operating in conjunction with any other

antenna or transmitter.

Contains transmitter module IC: 6514A-RN52

This device complies with Industry Canada license-

exempt RSS standard(s). Operation is subject to the

following two conditions: (1) this device may not

cause interference, and (2) this device must accept

any interference, including interference that may

cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Indust-

rie Canada applicables aux appareils radio exempts

de licence. L'exploitation est autorisée aux deux con-

ditions suivantes: (1) l'appareil ne doit pas produire

de brouillage, et (2) l'utilisateur de l'appareil doit

accepter tout brouillage radioélectrique subi, même

si le brouillage est susceptible d'en compromettre le

fonctionnement.

Under Industry Canada regulations, this radio trans-

mitter may only operate using an antenna of a type

and maximum (or lesser) gain approved for the trans-

mitter by Industry Canada. To reduce potential radio

interference to other users, the antenna type and its

gain should be so chosen that the equivalent isotropi-

cally radiated power (e.i.r.p.) is not more than that

necessary for successful communication.

Conformément à la réglementation d'Industrie Can-

ada, le présent émetteur radio peut fonctionner avec

une antenne d'un type et d'un gain maximal (ou

inférieur) approuvé pour l'émetteur par Industrie Can-

ada. Dans le but de réduire les risques de brouillage

radioélectrique à l'intention des autres utilisateurs, il

faut choisir le type d'antenne et son gain de sorte

que la puissance isotrope rayonnée équivalente

(p.i.r.e.) ne dépasse pas l'intensité nécessaire à

l'établissement d'une communication satisfaisante.

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Advanced Information

RN52-DS

The above notice may be affixed to the device instead

of displayed in the user manual.

3.2.2 HELPFUL WEB SITES

Industry Canada: http://www.ic.gc.ca/

3.3 Europe

The RN52 module is an R&TTE Directive assessed

radio module that is CE marked and has been manu-

factured and tested with the intention of being inte-

grated into a final product.

The RN52 module has been tested to R&TTE Directive

1999/5/EC Essential Requirements for Health and

Safety (Article (3.1(a)), Electromagnetic Compatibility

(EMC) (Article 3.1(b)), and Radio (Article 3.2) and are

summarized in Table 3-1: European Compliance Test-

ing. A Notified Body Opinion has also been issued. All

test reports are available on the RN52 product web

page at http://www.microchip.com.

The R&TTE Compliance Association provides guid-

ance on modular devices in document Technical Guid-

ance Note 01 available at http://www.rtteca.com/html/

download_area.htm.

3.3.1 LABELING AND USER

INFORMATION REQUIREMENTS

The label on the final product which contains the RN52

module must follow CE marking requirements. The

R&TTE Compliance Association Technical Guidance

Note 01 provides guidance on final product CE mark-

ing.

3.3.2 ANTENNA REQUIREMENTS

From R&TTE Compliance Association document Tech-

nical Guidance Note 01:

Provided the integrator installing an assessed

radio module with an integral or specific antenna

and installed in conformance with the radio mod-

ule manufacturer’s installation instructions

requires no further evaluation under Article 3.2

of the R&TTE Directive and does not require fur-

ther involvement of an R&TTE Directive Notified

Body for the final product. [Section 2.2.4]

3.3.3 HELPFUL WEB SITES

A document that can be used as a starting point in

understanding the use of Short Range Devices (SRD)

in Europe is the European Radio Communications

Committee (ERC) Recommendation 70-03 E, which

can be downloaded from the European Radio Commu-

nications Office (ERO) at: http://www.ero.dk/.

Additional helpful web sites are:

• Radio and Telecommunications Terminal Equip-

ment (R&TTE):

http://ec.europa.eu/enterprise/rtte/index_en.htm

• European Conference of Postal and Telecommu-

nications Administrations (CEPT):

http://www.cept.org

• European Telecommunications Standards Insti-

tute (ETSI):

http://www.etsi.org

• European Radio Communications Office (ERO):

http://www.ero.dk

• The Radio and Telecommunications Terminal

Equipment Compliance Association (R&TTE CA):

http://www.rtteca.com/

Note: To maintain conformance to the testing

listed in Ta b l e 3 - 1 , the module shall be

installed in accordance with the installa-

tion instructions in this data sheet and

shall not be modified.

When integrating a radio module into a

completed product the integrator

becomes the manufacturer of the final

product and is therefore responsible for

demonstrating compliance of the final

product with the essential requirements of

the R&TTE Directive.

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Advanced Information

RN52-DS

3.4 Australia

The Australia radio regulations do not provide a modu-

lar approval policy similar to the United States (FCC)

and Canada (IC). However, RN52 module RF transmit-

ter test reports can be used in part to demonstrate com-

pliance in accordance with ACMA Radio

communications “Short Range Devices” Standard

2004 (The Short Range Devices standard calls up the

AS/NZS 4268:2008 industry standard). The RN52

module test reports can be used as part of the product

certification and compliance folder. For more informa-

tion on the RF transmitter test reports, contact Micro-

chip Technology Australia sales office.

To meet overall Australian final product compliance, the

developer must construct a compliance folder contain-

ing all relevant compliance test reports e.g. RF, EMC,

electrical safety and DoC (Declaration of Conformity)

etc. It is the responsibility of the integrator to know what

is required in the compliance folder for ACMA compli-

ance. All test reports are available on the RN52 product

web page at http://www.microchip.com. For more infor-

mation on Australia compliance, refer to the Australian

Communications and Media Authority web site

http://www.acma.gov.au/.

3.4.1 HELPFUL WEB SITES

The Australian Communications and Media Authority:

www.acma.gov.au/.

3.5 New Zealand

The New Zealand radio regulations do not provide a

modular approval policy similar to the United States

(FCC) and Canada (IC). However, RN52 module RF

transmitter test reports can be used in part to demon-

strate compliance against the New Zealand “General

User Radio License for Short Range Devices”. New

Zealand Radio communications (Radio Standards)

Notice 2010 calls up the AS / NZS 4268:2008 industry

standard. The RN52 module test reports can be used

as part of the product certification and compliance

folder. All test reports are available on the RN52 prod-

uct web page at http://www.microchip.com. For more

information on the RF transmitter test reports, contact

Microchip Technology sales office.

Information on the New Zealand short range devices

license can be found in the following web links:

http://www.rsm.govt.nz/cms/licensees/types-ofli-

cence/general-user-licences/short-range-devices

and

http://www.rsm.govt.nz/cms/policy-and-planning/spec-

trum-policy-overview/legislation/gazette-notices/prod-

uct-compliance/radiocommunications-radiostandards-

notice-2010.

To meet overall New Zealand final product compliance,

the developer must construct a compliance folder con-

taining all relevant compliance test reports e.g. RF,

EMC, electrical safety and DoC (Declaration of Confor-

mity) etc. It is the responsibility of the developer to

know what is required in the compliance folder for New

Zealand Radio communications. For more information

on New Zealand compliance, refer to the web site

http://www.rsm.govt.nz/.

3.5.1 HELPFUL WEB SITES

Radio Spectrum Ministry of Economic Development:

http://www.rsm.govt.nz/.

TABLE 3-1: EUROPEAN COMPLIANCE TESTING

Certification Standards Article Laboratory Report Number Date

Safety EN 60950-1:2006+A11:2009+A1:2010 (3.1(a))

Health EN 50371:2002-03

EMC EN 301 489-1 V1.8.1 (2008-04) (3.1(b))

EN 301 489-17 V2.1.1 (2009-05)

Radio EN 300 328 V1.7.1 (2006-10) (3.2)

Notified Body

Opinion

DoC

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Advanced Information

Roving Networks, Inc.

102 Cooper Court

Los Gatos, CA 95032

+1 (408) 395-5300

www.rovingnetworks.com

is a registered trademark of Roving Networks. Apple Inc., iPhone, iPad,

iTunes, Made for iPhone are registered trademarks of Apple Computer.

Roving Networks reserves the right to make corrections, modifications,

and other changes to its products, documentation and services at any

time. Customers should obtain the latest relevant information before plac-

ing orders and should verify that such information is current and com-

plete.

Roving Networks assumes no liability for applications assistance or cus-

tomer’s product design. Customers are responsible for their products and

applications that use Roving Networks components. To minimize cus-

tomer product risks, customers should provide adequate design and oper-

ating safeguards.

Roving Networks products are not authorized for use in safety-critical

applications (such as life support) where a failure of the Roving Networks

product would reasonably be expected to cause severe personal injury or

death, unless officers of the parties have executed an agreement specifi-

cally governing such use.

RN52-DS

This device has not been authorized

as required by the rules of the Federal

Communications Commission. This

device is not, and may not be, offered

for sale or lease, or sold or leased,

until authorization is obtained.

4.0 ORDERING INFORMATION

Ta b l e 4 - 1 provides ordering information for the RN52

module.

Go to http://www.rovingnetworks.com for current pric-

ing and a list of distributors carrying Roving Networks

products.

5.0 DOCUMENT REVISION

HISTORY

5.1 Version 1.0

Initial release.

TABLE 4-1: ORDERING INFORMATION

Part Number Description

RN52-I/RM Standard application firmware (A2DP/AVRCP/SPP) master and slave).

For other configurations, contact Roving Networks directly.

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Microchip:

RN52-I/RM