ISL54207IRZ-T - Intersil Corporation

FN6403.0

ISL54207

Low Voltage, Dual SPDT, USB/CVBS/

Audio Switches, with Negative Signal

Capability

The Intersil ISL54207 dual SPDT (Single Pole/Dou ble Throw)

switches combine low distortion audio/vid eo and accurate

USB 2.0 high speed (480Mbps) da t a sig nal switching in the

same low voltage device. When opera ted with a 2.7 V to 3.6V

single supply, these analog switches al low audio/video signal

swings below-ground, allowing the use of a common USB and

audio/video connector in digit al cameras, camcorders and

other portable battery powered Persona l Media Player

devices.

The ISL54207 incorporates circuitry for detection of the USB

VBUS volta ge, which is used to switch betwee n the

audio/video and USB signal sources in the po rt ab le device.

The part has a control pin to op en all the switches and put the

part in a low pow er down state.

The ISL54207 is available in a small 10 L d 2.1mm x 1.6mm

ultra-thin μTQFN package and a 10Ld 3mm x 3mm TDFN

package. It operates over a temperature range of -40 to

+85°C.

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

• Application Note AN557 “Recommended Test Procedures

for Analog Switches”

Features

• High Speed (480Mbps) Signaling Capability per USB 2.0

• Low Distortion Negative Signal Capability

• Detection of VBUS Voltage on USB Cable

• Control Pin to Open all Switches and Enter Low Power

State

• Low Distortion Mono Audio Signal

- THD+N at 20mW into 32Ω Load . . . . . . . . . . . . . <0.1%

• Low Distortion Color Video Signal

- Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 0.28%

- Differential Phase. . . . . . . . . . . . . . . . . . . . . . . .0.04deg

• Cross-talk (4MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . -78dB

• Single Supply Operation (VDD) . . . . . . . . . . . . 2.7V to 3.6V

• -3dB Bandwidth USB Switch. . . . . . . . . . . . . . . . . 630MHz

• Available in μTQFN and TDFN Packages

• Pb-Free Plus Anneal Available (RoHS Compliant)

• Compliant with USB 2.0 Short Circuit Requirements

Without Additional External Components

Applications

• Digital Camera and Camcorders

• Video MP3 and other Personal Media Players

• Cellular/Mobile Phones

•PDA’s

• Audio/Video/USB Switching

Application Block Diagram

ISL54207

USB

TRANSCEIVER

HIGH-SPEED

AUDIO

USB and AUDIO/VIDEO JACK

COM1

COM2

VBUS

GND

NO1

NO2

NC1

NC2

VDD

CTRL

LOGIC CIRCUITR Y

μCONTROLLER

22kΩ4MΩ4MΩ

50kΩ

NTSC OR PAL

VIDEO

D+

D-

Data Sheet December 5, 2006

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774 |Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

2FN6403.0

December 5, 2006

Pinouts (Note 1)

ISL54207

(10 LD μTQFN)

TOP VIEW

ISL54207

(10 LD TDFN)

TOP VIEW

NOTE:

1. ISL54207 Switches shown for VBUS = Logic “0” and CTRL = Logic “1”.

NO1

COM 1 NC1

VBUS

CTRL

8NO2

COM 2 NC2

GND

VDD LOGIC

CONTROL

50k

NO1

COM 1

NC1

VBUS

8NO2

COM 2

NC2

VDD

LOGIC

CONTROL

50k

GND

4M CTRL

Truth Table

ISL54207

VBUS CTRL NC1, NC2 NO1, NO2

00OFFOFF

0 1 ON OFF

1XOFFON

CTRL: Logic “0” when ≤ 0.5V, Logic “1” when ≥ 1.4V

VBUS: Logic “0” when ≤ VDD + 0.2V or Floating, Logic “1” when

≥VDD + 0.8V

Pin Descriptions

ISL54207

PIN NO. NAME FUNCTION

1 VDD Power Supply

2 VBUS Digital Control Input

3 COM1 Voice/Video and USB Common Pin

4 COM2 Voice/Video and USB Common Pin

5 GND Ground Connection

6 NC2 Audio or Video Input

7 NC1 Audio or Video Input

8 NO2 USB Differential Input

9 NO1 USB Differential Input

10 CTRL Digital Control Input (Audio Enable)

Ordering Information

PART NUMBER

(Note) PART

MARKING TEMP. RANGE (°C) PACKAGE (Pb-Free) PKG. DWG. #

ISL54207IRUZ-T FP -40 to +85 10 Ld 2.1 x 1.6mm μTQFN Tape and Reel L10.2.1x1.6A

ISL54207IRZ-T 207Z -40 to +85 10 Ld 3mm x 3mm TDFN Tape and Reel L10.3x3A

ISL54207IRZ 207Z -40 to +85 10 Ld 3mm x 3mm TDFN L10.3x3A

NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate

or NiPdAu termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products

are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

ISL54207

3FN6403.0

December 5, 2006

Absolute Maximum Ratings Thermal Information

VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to 6.0V

Input Voltages

NCx, NOx(Note 2) . . . . . . . . . . . . . . . . . . . - 2V to ((VDD) + 0.3V)

VBUS (Note 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2V to 5.5V

CTRL (Note 2). . . . . . . . . . . . . . . . . . . . . . -0.3 to ((VDD) + 0.3V)

Output Voltages

COMx (Note 2) . . . . . . . . . . . . . . . . . . . . . . -2V to ((VDD) + 0.3V)

Continuous Current (NCx, COMx) . . . . . . . . . . . . . . . . . . . ±150mA

Peak Current (NCx, COMx)

(Pulsed 1ms, 10% Duty Cycle, Max). . . . . . . . . . . . . . . . ±300mA

Continuous Current (NOx) . . . . . . . . . . . . . . . . . . . . . . . . . . ±40mA

Peak Current (NOx)

(Pulsed 1ms, 10% Duty Cycle, Max) . . . . . . . . . . . . . . . . ±100mA

ESD Rating:

HBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >7kV

MM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >450V

CDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >2kV

Thermal Resistance (Typical, Note 3) θJA (°C/W)

10 Ld μTQFN Package . . . . . . . . . . . . . . . . . . . . . . . 130

10 Ld 3x3 TDFN Package. . . . . . . . . . . . . . . . . . . . . 110

Maximum Junction Temperature (Plastic Package) . . . . . . . +150°C

Maximum Storage Temperature Range. . . . . . . . . . . . -65°C to +150°C

Operating Co nditions

Temperature Range

ISL54207IRUZ and ISL54207IRZ. . . . . . . . . . . . . . . -40°C to +85°C

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTES:

2. Signals on NOx, NCx, COMx, CTRL, VBUS exceeding VDD or GND by specified amount are clamped. Limit current to maximum current ratings.

3. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

Electrical Specifications - 2.7V to 3.6V Supply Test Conditions: VDD = +3.0V, GND = 0V, VBUSH = 3.8V, VBUSL = 3.2V,

VCTRLH =1.4V, V

CTRLL = 0.5V, (Notes 4, 6), unless otherwise specified.

PARAMETER TEST CONDITIONS TEMP

(°C) (NOTE 5)

MIN TYP (NOTE 5)

MAX UNITS

ANALOG SWITCH CHARACTERISTICS

Audio/Video Switches (NC1, NC2)

Analog Signal Range, VANALOG VDD = 3.0V, VBUS = float, CTRL = 1.4V Full -1.5 - 1.5 V

ON Resistance, rON VDD = 3.0V, VBUS = float, CTRL = 1.4V,

ICOMx = 100mA, VNCx = -0.85V to 0.85V,

(See Figure 3)

25 - 2.65 4 Ω

Full - - 5.5 Ω

rON Matching Between Channels,

ΔrON VDD = 3.0V, VBUS = float, CTRL = 1.4V , ICOMx = 100mA,

VNCx = Volt age at max rON over signal range o f -0.85V to

0.85V, (Note 8)

25 - 0.02 0.13 Ω

Full - - 0.16 Ω

rON Flatness, rFLAT(ON) VDD = 3.0V, VBUS = float, CTRL = 1.4V,

ICOMx = 100mA, VNCx = -0.85V to 0.85V, (Note 7) 25 - 0.03 0.05 Ω

Full - - 0.07 Ω

Discharge Pull-Down Resistance,

RNC1, RNC2 VDD = 3.6V, VBUS = float, CTRL = 1.4V, VCOM- or

VCOM+ = -0.85V, 0.85V, VNC x = -0.85V, 0.85V,

VNOx = floating, Measure curre nt t hroug h th e discharge

pull-down resistor and calculate re sistance value.

25 - 50 - kΩ

USB Switches (NO1, NO2)

Analog Signal Range, VANALOG VDD = 3.0V, VBUS = 5.0V, CTRL = 0V or 3V Full 0 - VDD V

ON Resistance, rON VDD = 3.6V, VBUS = 4.4V, CTRL = 0V or 3.6V,

ICOMx = 40mA, VNOx = 0V to 400mV

(See Figure 4)

25 - 4.6 5 Ω

Full - - 6.5 Ω

rON Matching Between Channels,

ΔRON VDD = 3.6V, VBUS = 4.4V, CTRL = 0V or 3.6V,

ICOMx = 40mA, VNOx = Voltage at max rON,

(Note 8)

25 - 0.06 0.5 Ω

Full - - 0.55 Ω

rON Flatness, rFLAT(ON) VDD = 3.6V, VBUS = 4.4V, CTRL = 0V or 3.6V,

ICOMx = 40mA, VNOx = 0V to 400mV, (Note 7) 25 - 0.4 0.6 Ω

Full - - 1.0 Ω

ISL54207

4FN6403.0

December 5, 2006

OFF Leakage Current, ID+(OFF) or

ID-(OFF) VDD = 3.6V , VBUS = 0V , CTRL = 3.6V , VCOMx = 0.5V , 0V ,

VNOx = 0V, 0.5V, VNCx = float 25 -10 - 10 nA

Full -70 - 70 nA

ON Leakage Current, IDx VDD = 3.3V, VBUS = 5.25V, CTRL = 0V or 3.6V,

VNOx = 2.0V, VCOMx, VNCx = float 25 -10 2 10 nA

Full -75 - 75 nA

DYNAMIC CHARACTERISTICS

Tu rn-O N Time , tON VDD = 2.7V, RL = 50Ω, CL = 10pF, (See Figure 1) 25 - 67 - ns

Turn-OFF Time, tOFF VDD = 2.7V, RL = 50Ω, CL = 10pF, (See Figure 1) 25 - 48 - ns

Break-Before-Make Time Delay, tDVDD = 2.7V, RL = 50Ω, CL = 10pF, (See Figure 2) 25 - 18 - ns

Skew, tSKEW VDD = 3.0V, VBUS = 5.0V, CTRL = 0V or 3V, RL = 45Ω,

CL = 10pF, tR = tF= 720ps at 480Mbps,

(Duty Cycle = 50%) (See Figure 7)

25 - 50 - ps

Total Jitter, tJVDD = 3.0V, VBUS = 5.0V, CTRL = 0V or 3V, RL = 45Ω,

CL = 10pF, tR = tF= 750ps at 480Mbps 25 - 210 - ps

Propagation Delay, tPD VDD = 3.0V, VBUS = 5.0V, CTRL = 0V or 3V, RL = 45Ω,

CL = 10pF, (See Figure 7) 25 - 250 - ps

Crosstalk (Channel-to-Channel),

NC2 to COM1, NC1 to COM2 VDD = 3.0V, VBUS = float, CTRL = 3.0V, RL = 75Ω,

f = 4MHz, VNCx = 300mVP-P ,

(See Figure 6)

25 - -78 - dB

Differential Gain VIN = 300mVP-P, VOFFSET = 0V to 0.7V, f = 3.58MHz,

RL = 75 25 - 0.28 - %

Differential Phase VIN = 300mVp-p, VOFFSET = 0V to 0.7V, f = 3.58MHz,

RL = 75 25 - 0.04 - °

Total Harmonic Distortion f = 20Hz to 20kHz, VDD = 3.0V, VBUS = float,

CTRL = 3.0V, VNCx = 0.707VRMS (2VP-P), RL = 32Ω

25 - 0.06 - %

NCx (Audio/Video) Switch -3dB

Bandwidth Signal = 8dBm, RL = 75Ω, CL = 5pF 25 - 338 - MHz

NOx (USB) Switch -3dB Bandwidth Signal = 0dBm, 0.2VDC offset, RL = 50Ω, CL = 5pF 25 - 630 - MHz

NOx OFF Capacitance, CNOx(OFF) f = 1MHz, VDD = 3.0V, VBUS = float, CTRL = 3.0V,

VD- or VD+ = VCOMx = 0V, (See Figure 5) 25 - 6 - pF

NCx OFF Capacitance, CNCx(OFF) f = 1MHz, VDD = 3.0V, VBUS = 5.0V, CTRL = 0V or 3V,

VL or VR = VCOMx = 0V, (See Figure 5) 25 - 9 - pF

COMx ON Capacitance, CCOMx(ON) f = 1MHz, VDD = 3.0V, VBUS = 5.0V, CTRL = 0V or 3V,

VD- or VD+ = VCOMx = 0V, (See Figure 5) 25 - 10 - pF

POWER SUPPLY CHARACTERISTICS

Power Supply Range, VDD Full 2.7 3.6 V

Positive Supply Current, IDD VDD = 3.6V, VBUS = float or 5 .25V, CTRL = 1.4V 25 - 6 8 μA

Full - - 10 μA

Positive Supply Current, IDD

(Low Power State) VDD = 3.6V, VBUS = 0V or float, CTRL = 0V or float 25 - 1 7 nA

Full - - 140 nA

DIGITAL INPUT CHARACTERISTICS

VBUS Voltage Low, V BUSL VDD = 2.7V to 3.6V Full - - VDD + 0.2 V

VBUS Voltage High, VBUSH VDD = 2.7V to 3.6V Full VDD + 0.8 - - V

CTRL Voltage Low, VCTRLL VDD = 2.7V to 3.6V Full - - 0.5 V

Electrical Specifications - 2.7V to 3.6V Supply Test Conditions: VDD = +3.0V, GND = 0V, VBUSH = 3.8V, VBUSL = 3.2V,

VCTRLH = 1.4V, VCTRLL = 0.5V, (Notes 4, 6), unless otherwise specified.

(Continued)

PARAMETER TEST CONDITIONS TEMP

(°C) (NOTE 5)

MIN TYP (NOTE 5)

MAX UNITS

ISL54207

5FN6403.0

December 5, 2006

CTRL Voltage High, VCTRLH VDD = 2.7V to 3.6V Full 1.4 - - V

Input Current, IBUSL, ICTRLL VDD = 3.6V, VBUS = 0V or float, CTRL = 0V or float Full -50 20 50 nA

Input Current, IBUSH VDD = 3.6V, VBUS = 5.25V, CTRL = 0V or float Full -2 1.1 2 μA

Input Current, ICTRLH VDD = 3.6V, VBUS = 0V or float, CTRL = 3.6V Full -2 1.1 -2 μA

VBUS Pull-Down Resistor, RVBUS VDD = 3.6V, VBUS = 5.25V, CTRL = 0V or float Full - 4 - MΩ

CTRL Pull-Down Resistor, RCTRL VDD = 3.6V, VBUS = 0V or float, CTRL = 3.6V Full - 4 - MΩ

NOTES:

4. VLOGIC = Input voltage to perform proper function.

5. The algebraic convention, whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.

6. Parts are 100% tested at +25°C. Limits across the full temperature range are guaranteed by design and correlation.

7. Flatness is defined as the difference between maximum and minimum value of on-resistance over the specified analog signal range.

8. rON matching between channels is calculated by subtracting the channel with the highest max rON value from the channel with lowest max rON

value, between NC1 and NC2 or between NO1 and NO2.

Test Circuits and Waveforms

Logic input waveform is inverted for switches that have the opposite

logic sense.

FIGURE 1A. MEASUREMENT POINTS

Repeat test for all switches. CL includes fixture and stray

capacitance.

FIGURE 1B. TEST CIRCUIT

FIGURE 1. SWITCHING TIMES

Electrical Specifications - 2.7V to 3.6V Supply Test Conditions: VDD = +3.0V, GND = 0V, VBUSH = 3.8V, VBUSL = 3.2V,

VCTRLH = 1.4V, VCTRLL = 0.5V, (Notes 4, 6), unless otherwise specified.

(Continued)

PARAMETER TEST CONDITIONS TEMP

(°C) (NOTE 5)

MIN TYP (NOTE 5)

MAX UNITS

50%

tr < 20ns

tf < 20ns

tOFF

90%

VBUSH

VINPUT

VBUSL

tON

LOGIC

INPUT

SWITCH

INPUT

SWITCH

OUTPUT

90%

VOUT

VOUT V(INPUT) RL

RLrON()

----------------------------

SWITCH

INPUT

VBUS

VOUT

RL CL

COMx

NO or NC

VBUS

50Ω10pF

GND

VDD C

CTRL

VINPUT

ISL54207

6FN6403.0

December 5, 2006

FIGURE 2A. MEASUREMENT POINTS

Repeat test for all switches. CL includes fixture and stray

capacitance.

FIGURE 2B. TEST CIRCUIT

FIGURE 2. BREAK-BEFORE-MAKE TIME

Repeat test for all switches.

FIGURE 3. AUDIO rON TEST CIRCUIT

Repeat test for all switches.

FIGURE 4. USB rON TEST CIRCUIT

Test Circuits and Waveforms (Continued)

90%

VBUSH

VBUSL

LOGIC

INPUT

SWITCH

OUTPUT 0V

VOUT

VBUS

COMx

RLCL

VOUT

10pF

50Ω

NOx

NCx

VDD

GND

VINPUT

CTRL

VDD C

OV or Float

NCx

COMx

VBUS

GND

VNCx

rON = V1/100mA

100mA

CTRL

VDD C

4.4V to 5.25V

NOx

COMx

VBUS

GND

VNOx

rON = V1/40mA

40mA

CTRL

ISL54207

7FN6403.0

December 5, 2006

Repeat test for all switches.

FIGURE 5. CAPACITANCE TEST CIRCUIT

Signal direction through switch is reversed, worst case

values are recorded. Repeat test for all switches

FIGURE 6. AUDIO CROSSTALK TEST CIRCUIT

FIGURE 7A. MEASUREMENT POINTS FIGURE 7B. TEST CIRCUIT

FIGURE 7. SKEW TEST

Test Circuits and Waveforms (Continued)

VDD

GND

NCx or NOx

COMx

VBUS

IMPEDANCE

ANALYZER VBUSL or

CTRL

VBUSH

0V or Float

ANALYZER

VDD

NCx

SIGNAL

GENERATOR

GND

VBUS

COMx 75Ω

N.C.

COMx R or L

CTRL

DIN+

DIN-

OUT+

OUT-

50%

90%

10%

90%

50%

90%

50%

tri

tfitro

tf0

tskew_i

tskew_o

OUT+

COM2

NO1

GND

VDD C

NO2

COM1

OUT-

DIN+

DIN-

|tro - tri| Delay Due to Switch for Rising Input and Rising Output Signals.

|tfo - tfi| Delay Due to Switch for Falling Input and Falling Output Signals

|tskew_0| Change in Skew through the Switch for Output Signals.

|tskew_i| Change in Skew through the Switch for Input Signals.

15.8Ω

143Ω

45Ω

CTRL

VBUS

VBUSH

ISL54207

8FN6403.0

December 5, 2006

Application Block Diagram

Detailed Description

The ISL54207 device is a dual single pole/double throw

(SPDT) analog switch device that operates from a single DC

power supply in the range of 2.7V to 3.6V. It was designed to

function as a dual 2 to 1 multiplexer to select between USB

differential data signals and mono audio/composite video

baseband signals (CVBS). It comes in tiny μTQFN and

TDFN packages for use in cameras, camcorders, video MP3

players, PDAs, cell phones, and other personal media

players.

The part consists of two 3Ω au dio/video switches and two

5Ω USB switches. The audio/video switches can accept

signals that swing below groun d. They were designed to

pass ground reference audio or dc restored with synch

composite video signals with minimal distortion. The USB

switches were designed to pass high-speed USB differential

data signals with minimal edge and phase disto rtio n.

The ISL54207 was specifically designed for digital cameras,

camcorders, MP3 players, cell phones and other personal

media player applications that need to combine the

audio/video jacks and the USB data connector into a single

shared connector, thereby saving space and component

cost. A typical application block diagram of this functionality

is shown above.

The ISL54207 incorporates circuitry for the detection of the

USB VBUS voltage, which is used to switch between the

audio/video drivers and USB transceiver of the media player.

The ISL54207 contains a logic control pin (CTRL) that when

driven Low while VBUS is Low, opens all switches and puts

the part into a low power state, drawing typically 1nA of IDD

current.

A detailed description of the two types of switches is

provided in the following sections. The USB transmission

and audio/video playback are intended to be mutually

exclusive operations.

NC1 and NC2 Audio/Video Switches

The two NC (normally closed) audio/video switches (NC1,

NC2) are 3Ω switches that can pass signals that swing

below ground by as much as 1.5V. Th ey were designed to

pass ground reference audio signals and DC resto red

composite base-band signals (CVBS), including negative

synchronizing pulse with minimal insertion loss and very low

distortion and degradation.

The -3dB bandwidth into 75Ω is 338MHz (Figure 17).

Crosstalk between NC1 and NC2 @ 4MHz is -78dB

(Figure 16), which allows composite video to be routed

through one switch and mono-audio through the other switch

with little interference.

The recommended maximum signal range is fro m -1.5V to

1.5V. You can apply positive signals greater than 1.5V but

the rON resistance of the switch increases rapidly above

1.5V. The signal should not be allowed to exceed the VDD

rail or swing more negative than -1.5V.

Over a signal range of ±1V (0.707Vrms) with VDD > 2.7V,

these switches have an extremely low rON resistance

variation. They can pass a ground referenced audio signal

with very low distortion (<0.06% THD+N) when delivering

15.6mW into a 32Ω headphone speaker load. See

Figures 10, 11, 12, and 13 THD+N performance curves.

Figure 8 and 9 shows the vector scope plots of a standard

NTSC color bar signal at both the input (Figure 8) and output

(Figure 9) of the ISL54207. The plots show that except for a

little attenuation due to switch rON and test fixture cabling,

there is virtually no degradation of the video waveform

through the switch.

ISL54207

USB

TRANSCEIVER

HIGH-SPEED

AUDIO

USB AND AUDIO/VIDEO JACK

COM1

COM2

VBUS

GND

NO1

NO2

NC1

NC2

VDD

CTRL

LOGIC CIRCUITRY

mCONTROLLER

22kΩ4MΩ4MΩ

50kΩ

NTSC or PAL

VIDEO

D+

D-

ISL54207

9FN6403.0

December 5, 2006

Figure 18 shows the differential gain (DG) and differential

phase (DP) plots at the output of the switch using an actual

NTSC composite video signal and a VM700A Video

Measurement Test Set. DG = 0.28% and DP = 0.04°.

These NC switches are uni-direction al switches. The

audio/video sources should be conne cted at the NC side of

the switch (pins 7 and 8) and the speaker load and video

receiver should be connected at the COM side of the switch

(pins 3 and 4).

The NC switches are active (turned ON) whenever the VBUS

voltage is ≤ to VDD + 0.2V or floating and the CTRL voltage ≥

to 1.4V.

Note: Whenever th e NC switches are ON the USB

transceivers need to be in the high impedance state or static

high or low state.

NO1 and NO2 USB Switches

The two NO (normally open) USB switches (NO1, NO2) are

5Ω bidirectional switches that are designed to pass

high-speed USB differential signals in the range of ±0V to

400mV. The switches have low capacitance and high

bandwidth to pass USB high-speed signals (480Mbps) with

minimum edge and phase distortion to meet USB 2.0 signal

quality specifications. See Figure 14 for High-speed Eye

Pattern taken with switch in the signal path.

The maximum signal range for the USB switches is from

-1.5V to VDD. The signal voltage at NO1 and NO2 sh ould

not be allowed to exceed the VDD voltage rail or go belo w

ground by more than -1.5V.

The NO switches are active (turned ON) whenever the VBUS

voltage is ≥ to VDD + 0.8V. VBUS is internally pulled low, so

when VBUS is floating, the USB switches are OFF.

Note: Whenever the NO switche s are ON, the audio and

video drivers need to be at AC or DC ground or floating to

keep from interfering with the data transmission.

ISL54207 Operation

The discussion th at follows wil l discuss using the ISL54207 in

the typical application shown in the block diagra m on page 8.

LOGIC CONTROL

The state of the ISL54207 device is determined by the

voltage at the VBUS pin (pin 2) and the CTRL pin (pin 10).

Refer to truth-table on page 2 of the data sheet.

The VBUS pin and CTRL pin are internally pulled low

through 4MΩ resistors to ground and can be left floating. The

CTRL control pin is only active when VBUS is logic “0”.

Logic control voltage levels:

VBUS = Logic “0” (Low) when VBUS ≤ VDD + 0.2V or

Floating.

VBUS = Logic “1” (High) when VBUS ≥ VDD + 0.8V

CTRL = Logic “0” (Low) when ≤ 0.5V or floating.

CTRL = Logic “1” (High) when ≥ 1.4V

Audio/Video Mode

If the VBUS pin = Logic “0” and CTRL pin = Logic “1,” the

part will be in the Audio/Video mode. In Audio/Video mode

the NC1 and NC2 3Ω audio/video switches are ON and the

NO1 and NO2 5Ω USB switches are OFF (high impedance).

In a typical application, VDD will be in the rang e of 2.7V to

3.6V and will be connected to the battery or LDO of the

media player. When a audio/video jack is plugged into the

common connector , nothing gets connected at the VBUS pin

(it is floating) and as long as the CTRL = Logic “1,” the

ISL54207 part remains in the audio/video mode and the

media player audio and vi deo drivers can drive the speaker

and video display.

FIGURE 8. VECTOR-SCOPE PLOT BEFORE SWITCH

FIGURE 9. VECTOR-SCOPE PLOT AFTER SWITCH

ISL54207

10 FN6403.0

December 5, 2006

USB Mode

If the VBUS pin = Logic “1” an d CTRL pin = Logic “0” or

Logic “1,” the part will go into USB mode. In USB mode, the

NO1 and NO2 5Ω switches are ON and the NC1 and NC2

3Ω audio switches are OFF (high impedance). When a USB

cable from a computer or USB hub is connected at the

common connector, the voltage at the VBUS pin will be

driven to be in the range of 4.4V to 5.25V. The ISL54207 part

will go into the USB mode. In USB mode, the computer or

USB hub transceiver and the media player USB transceiver

are connected and digital data will be able to be transmitted

back and forth.

When the USB cable is disconnected, the ISL54207

automatically turns the NO1 and NO2 switches OFF.

Low Power Mode

If the VBUS pin = Logic “0” an d CTRL pin = Logic “0,” the

part will be in the Low Power mode. In the Low Power mode,

the NCx switches and the NOx switches are OFF (high

impedance). In this state, the device draws typically 1nA of

current.

EXTERNAL VBUS SERIES RESISTOR

The ISL54207 contains a clamp circuit between VBUS and

VDD. Whenever the VBUS vol tage is greater than the VDD

voltage by more than 2.55V, current will flow through this

clamp circuitry into the VDD power supply bus.

During normal USB operation, VDD is in the range of 2.7V to

3.6V and VBUS is in the range of 4.4V to 5.25V. The clamp

circuit is not active and no current will flow through the clamp

into the VDD supply.

In a USB application, the situation can exist where the VBUS

voltage from the computer could be applied at the VBUS pin

before the VDD voltage is up to its normal operating voltage

range and current will flow through the clamp into the VDD

power supply bus. This current could be quite high when

VDD is OFF or at 0V and could potentially damage other

components connected in the circuit. In the application

circuit, a 22kΩ resistor has been put in series with the VBUS

pin to limit the current to a safe level during this situation.

It is recommended that a current limiting resistor in the range

of 10kΩ to 50kΩ be connected in series with the VBUS pin. It

will have minimal impact on the logic level at the VBUS pin

during normal USB operation and protect the circuit during

the time VBUS is present before VDD is up to its normal

operating voltage.

Note: No external resistor is required in applications where

VBUS will not exceed VDD by more than 2.55V.

POWER

The power supply connected at VDD (pin 1) provides power

to the ISL54207 part. Its volt age should be kept in the range

of 2.7V to 3.6V when used in a USB/Audio/Video application

to ensure you get proper switching when the VBUS voltage is

at its lower limit of 4.4V.

Typical Performance Curves TA = +25°C, Unless Otherwise Specified

FIGURE 10. THD+N vs SUPPLY VOLTAGE vs FREQUENCY FIGURE 11. THD+N vs SIGNAL LEVELS vs FREQUENCY

THD+N (%)

FREQUENCY (Hz)

20 200 2k 20k

0.04

0.05

0.06

0.07

0.08

0.09

0.1

0.11

VDD = 2.6V

VDD = 2.7V

VDD = 3.6V

VDD = 3V

RLOAD = 32Ω

VLOAD = 0.707VRMS

THD+N (%)

FREQUENCY (Hz)

20 200 2k 20k

RLOAD = 32Ω

VDD = 3V

0.1

0.2

0.3

0.4

2VP-P

1VP-P

3VP-P

2.5VP-P

ISL54207

11 FN6403.0

December 5, 2006

FIGURE 12. THD+N vs OUTPUT VOLTAGE FIGURE 13. THD+N vs OUTPUT POWER

FIGURE 14. EYE PATTERN: 480Mbps WITH NOx SWITCHES IN THE SIGNAL PATH

Typical Performance Curves TA = +25°C, Unless Otherwise Specified (Continued )

THD+N (%)

OUTPUT VOLTAGE (VP-P)

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5

0.1

0.2

0.3

0.4

0.5 RLOAD = 32Ω

FREQ = 1kHz

VDD =3V

THD+N (%)

OUTPUT POWER (mW)

0 1020304050

0.1

0.2

0.3

0.4

0.5 RLOAD = 32Ω

FREQ = 1kHz

VDD =3V

TIME (10ns/DIV)

VOLT AGE (835mV/DIV)

ISL54207

12 FN6403.0

December 5, 2006

FIGURE 15. FREQUENCY RESPONSE FIGURE 16. VIDEO TO AUDIO CROSSTALK

FIGURE 17. FREQUENCY RESPONSE FIGURE 18. DIFFERENTIAL PHASE AND DIFFERENTIAL GAIN

Die Characteristics

SUBSTRATE POTENTIAL (POWERED UP):

GND (TDFN Paddle Connection: Tie to GND or Float)

TRANSISTOR COUNT:

PROCESS:

Submicron CMOS

Typical Performance Curves TA = +25°C, Unless Otherwise Specified (Continued)

FREQUENCY (Hz)

-1

NORMALIZED GAIN (dB)

1M 10M 100M 1G

VIN = 0.2VP-P to 2VP-P

RL = 50Ω

-2

-3

-4

1NOx SWITCH

FREQUENCY (MHz)

-60

NORMALIZED GAIN (dB)

0.01 0.1 1 500

-70

-80

-40

-90

-110

-10

-20

-30

-50

100.001 10036

VIN = 0.2VP-P to 2VP-P

RL = 75Ω

FREQUENCY (Hz)

-1

NORMALIZED GAIN (dB)

1M 10M 100M 1G

VIN = 0.2VP-P to 2VP-P

RL = 75Ω

-2

-3

-4

1NCx SWITCHES

GAIN (%)

PHASE (DEG)

ISL54207

13 FN6403.0

December 5, 2006

ISL54207

Ultra Thin Quad Flat No-Lead Plastic Package (UTQFN)

0.10 C

0.10 M CAB

0.05 M C

(ND-1) X e

0.05 CA

0.10 C

SEATING PLANE

INDEX AREA

PIN #1 ID

(DATUM A)

(DATUM B)

N-1

NX L

NX b

TOP VIEW

BOTTOM VIEW

SIDE VIEW

NX (b)

SECTION "C-C"

FOR ODD TERMINAL/SIDE

TERMINAL TIP

(A1)

DETAIL “A” PIN 1 ID

0.05 MIN

0.10 MIN

0.10 C

4xk

L10.2.1x1.6A

10 LEAD ULTRA THIN QUAD FLAT NO-LEAD PLASTIC

PACKAGE

SYMBOL

MILLIMETERS

NOTESMIN NOMINAL MAX

A 0.45 0.50 0.55 -

A1 - - 0.05 -

A3 0.127 REF -

b 0.15 0.20 0.25 5

D 2.05 2.10 2.15 -

E 1.55 1.60 1.65 -

e 0.50 BSC -

k0.20

---

L 0.35 0.40 0.45 -

N102

Nd 4 3

Ne 1 3

0-12

Rev. 3 6/06

NOTES:

1. Dimensioning and tolerancing conform to ASME Y14.5-1994.

2. N is the number of terminals.

3. Nd and Ne refer to the number of terminals on D and E side,

respectively.

4. All dimensions are in millimeters. Angles are in degrees.

5. Dimension b applies to the metallized terminal and is measured

between 0.15mm and 0.30mm from the terminal tip.

6. The configuration of the pin #1 identifier is optional, but must be

located wi thin the zone indicated. The pin #1 identif ier may be

either a mold or mark feature.

7. Maximum package warpage is 0.05mm.

8. Maximum allowable burrs is 0.076mm in all directions.

9. Same as JEDEC MO-255UABD except:

No lead-pull-back, "A" MIN dimension = 0.45 not 0.50mm

"L" MAX dimension = 0.45 not 0.42mm.

10. For additional information, to assist with the PCB Land Pattern

Design effort, see Intersil Technical Brief TB389.

2.00

0.80

1.75

0.25

0.50

0.275

2.50

LAND PATT ERN

All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.

Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality

Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without

notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and

reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result

from its use. No lice nse is gran t ed by i mpli catio n or other wise u nder an y p a tent or patent rights of I nter sil or its subsidiaries.

For information regarding Intersil Corporation and its products, see www.intersil.com

FN6403.0

December 5, 2006

ISL54207

Thin Dual Flat No-Lead Plastic Package (TDFN)

NX (b)

SECTION "C-C"

FOR ODD TERMINAL/SIDE

TERMINAL TIP

(A1)

BOTTOM VIEW

AREA

INDEX

0.10

0.08

SIDE VIEW

0.10

C0.10

TOP VIEW

AREA

INDEX

NX L

E2/2

REF.

(Nd-1)Xe

(DATUM A)

(DATUM B)

0.10

BAC

N-1

PLANE

SEATING

NX b

D2/2

NX k

L1 9L

L10.3x3A

10 LEAD THIN DUAL FLAT NO-LEAD PLASTIC PACKAGE

SYMBOL

MILLIMETERS

NOTESMIN NOMINAL MAX

0.70 0.75 0.80

- - 0.05

0.20 REF

0.20 0.25 0.30

5, 8

2.95 3.0 3.05

2.25 2.30 2.35

7, 8

2.95 3.0 3.05

1.45 1.50 1.55

7, 8

0.50 BSC

0.25 - -

0.25 0.30 0.35

Rev. 3 3/06

NOTES:

1. Dimensioning and tolerancing conform to ASME Y14.5-1994.

2. N is the number of terminals.

3. Nd refers to the number of terminals on D.

4. All dimensions are in millimeters. Angles are in degrees.

5. Dimension b applies to the metallized terminal and is measured

between 0.15mm and 0.30mm from the terminal tip.

6. The configuration of the pin #1 identifier is optional, but must be

located wi thin the zone indicated. The pin #1 identif ier may be

either a mold or mark feature.

7. Dimensions D2 and E2 are for the exposed pads which provide

improved electrical and thermal performance.

8. Nominal dimensions are provided to assist with PCB Land

Pattern Design efforts, see Intersil Technical Brief TB389.

9. Compliant to JEDEC MO-229-WEED-3 except for D2

dimensions.