NJW1184M(TE1) - NEW JANPAN RADIO

NJW1184

-1-

4-CHANNEL ELECTRONIC VOLUME

■

■■

■ GENERAL DESCRIPTION ■

■■

■ PACKAGE OUTLINE

The NJW1184 is a four channel electronic volume.

The NJW1184 performs click-noiseless characteristics

with VCA circuit.

These functions are controlled by I

2

C Bus. And the

Slave Address selector is available for using two chips

on same serial bus line. It’s available for two-channel

stereo and or multi-channel audio volume.

■

■■

■ FEATURES

● Operating Voltage 7.5 to 13V

● I

2

C Bus control

● Slave Address Selector available for using two chips on same serial bus line

● Volume (VCA type) 0 to –100dB/0.5dBstep, MUTE

● 2 Auxiliary Port

● Bi-CMOS Technology

● Package Outline DMP20, DIP20

■

■■

■ BLOCK DIAGRAM

Bias

VOL3

OUT3

OUT4

CVOL1

CVOL2

CVOL3

CVOL4

GND

V+

Vref

SCL

SDA

VOL4

AUX0

IN4

IN3

ADR

AUX1

I

2

C Bus

Interface

VOL1

OUT1

OUT2

VOL2

IN2

IN1

NJW1184M NJW1184D

NJW1184

- 2 -

■

■■

■PIN CONFIGURATION

No. Symbol Function No Symbol Function

1 IN1 Input 1 11 V+ Power Supply Pin

2 OUT1 Output 1 12 Vref Reference Voltage

3 IN2 Input 2 13 AUX0 Auxiliary Output0

4 OUT2 Output 2 14 AUX1 Auxiliary Output1

5 CVOL1 DAC Output for Volume 1 15 CVOL4 DAC Output for Volume 4

6 CVOL2 DAC Output for Volume 2 16 CVOL3 DAC Output for Volume 3

7 ADR Slave Address Setting 17 OUT4 Output 4

8 SDA SDA Data Input (I

2

C BUS) 18 IN4 Input 4

9 SCL SCL Data Input (I

2

C BUS) 19 OUT3 Output 3

10 GND GND 20 IN3 Input 3

2

3

4

5

6

7

8

9

10

1

20

19

18

17

16

IN1

OUT1

IN2

CVOL2

A

DR

OUT2

CVOL1

SD

A

SCL

GND

IN3

OUT3

IN4

CVOL4

A

UX1

CVOL3

A

UX0

Vref

V+

15

14

13

12

11

OUT4

NJW1184

-3-

■

■■

■ ABSOLUTE MAXIMUM RATING (Ta=25°C)

PARAMETER SYMBOL RATING UNIT

Supply Voltage V

+

15 V

Maximum Input Voltage V

IM

0 to V

+

(✴)

V

Power Dissipation P

D

DIP20 : 700

DMP20 : 350

mW

Operating Temperature Range Topr -40 to +85 °C

Storage Temperature Range Tstg -40 to +125 °C

(✴) For the maximum input voltage less than 0 toV

+

■

■■

■ ELECTRICAL CHARACTERISTICS

(Ta=25°C, V+=9V, R

L

=47kΩ, Vin=100mVrms/1kHz, unless otherwise specified)

●

●●

●POWER SUPPLY

PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT

Operating Voltage V

+

7.5 9.0 13.0 V

Supply Current I

CC

No Signal - 4 10 mA

Reference Voltage V

REF

No Signal 4.0 4.5 5.0 V

●

●●

●VOLUME

PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT

Maximum Input Voltage V

IM

VOL=-20dB,THD=1% 2.8 3.0 - Vrms

Maximum Output Voltage V

OM

OUTPUT

VOL=0dB,THD=1% - 2.5 - Vrms

Channel Balance G

CB

VOL=0dB -1.0 0.0 1.0 dB

Total Harmonic Distortion THD Vo=0.5Vrms

BW=400Hz to 30kHz - - 0.3 %

Maximum Gain G

VMAX

VOL= 0dB -2.0 0.0 2.0 dB

Minimum Gain G

VMIN

VOL= MUTE, Vin=2Vrms - -100 -90 dB

Channel Separation CS Vin = 1Vrms

A-weighting - -80 -70 dB

Output Noise 1 V

NO1

VOL = 0dB

A-weighting

-

-90

(31.6)

-85

(56.2)

dBV

(µVrms)

Output Noise 2 V

NO2

VOL = MUTE

A-weighting

-

-106

(5.0)

-96

(15.8)

dBV

(µVrms)

Input Impedance Ri - 20 - kΩ

Logic Output: High 4.5 - 5.5

AUX Output Voltage V

AUX

Logic Output: Low

0

-

0.5

V

BW: Band Width

●

●●

●CONTROL

PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT

High Level Input Voltage

V

ADRH

High : Slave Address 82H

V

+

/2 - -

V

Low Level Input Voltage

V

ADRL

Low : Slave Address 80H

- - 1.0

V

NJW1184

- 4 -

!TIMING ON THE I

2

C BUS (SDA,SCL)

!CHARACTERISTICS OF I/O STAGES FOR I

2

C BUS (SDA,SCL)

I

2

C BUS Load Conditions

STANDARD MODE : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND)

FAST MODE : Pull up resistance 4k

Ω

(Connected to +5V), Load capacitance 50pF (Connected to GND)

Standard mode Fast mode

PARAMETER SYMBOL

MIN. TYP. MAX. MIN. TYP. MAX.

UNIT

Low Level Input Voltage V

IL

0.0 - 1.5 0.0 - 1.5 V

High Level Input Voltage V

IH

2.7 - 5.0 2.7 - 5.0 V

Low level output voltage (3mA at SDA pin) V

OL

0 - 0.4 0 - 0.4 V

Input current each I/O pin with an input voltage

between 0.1V

DD

and 0.9V

DDmax

I

i

-10 - 10 -10 - 10 µA

SDA

SCL

t

f

t

HD:STA

t

LOW

t

r

t

HD:DAT

t

HIGH

t

f

t

SU:DAT

S

t

SU:STA

t

HD:STA

t

SP

t

SU:STO

Sr

t

r

t

BUF

PS

NJW1184

-5-

!CHARACTERISTICS OF BUS LINES (SDA,SCL) FOR I

2

C-BUS DEVICES

Standard mode Fast mode

PARAMETER SYMBOL

MIN. TYP. MAX. MIN. TYP. MAX.

UNIT

SCL clock frequency f

SCL

- - 100 - - 400 kHz

Hold time (repeated) START condition. t

HD:STA

4.0 - - 0.6 - - µs

Low period of the SCL clock t

LOW

4.7 - - 1.3 - - µs

High period of the SCL clock t

HIGH

4.0 - - 0.6 - - µs

Set-up time for a repeated START condition t

SU:STA

4.7 - - 0.6 - - µs

Data hold time

NOTE)

t

HD:DAT

0 - - 0 - - µs

Data set-up time t

SU:DAT

250 - - 100 - - ns

Rise time of both SDA and SCL signals t

r

- - 1000 - - 300 ns

Fall time of both SDA and SCL signals t

f

- - 300 - - 300 ns

Set-up time for STOP condition t

SU:STO

4.0 - - 0.6 - - µs

Bus free time between a STOP and START condition t

BUF

4.7 - - 1.3 - - µs

Capacitive load for each bus line C

b

- - 400 - - 400 pF

Noise margin at the Low level V

nL

0.5 - - 0.5 - - V

Noise margin at the High level

V

nH

1 - - 1 - -

V

C

b

; total capacitance of one bus line in pF.

NOTE). Data hold time : t

HD:DAT

Please hold the Data Hold Time (t

HD:DAT

) to 300ns or more to avoid status of unstable at SCL falling edge.

The SDA block in the NJW1184 does not hold data. Add external data-delay-circuit of the SDA terminal, in case of not

providing a hold time of at least 300nsec for the SDA in the master device.

The time-consists of the data-delay-circuit of the SDA terminal are as follows.

(a) Low level ! High level : T

LH

≈ R

P

*C

D

(b) High level ! Low level : T

HL

≈ R

D

*C

D

In addition, Schottky barrier diode (SBD) influences a Low level at the Acknowledge. Therefore choose the low forward

voltage (Vf) as much as possible.

MA STER

SCL

SDA

V

DD

R

P

R

P

R

D

SBD

C

D

NJW1184

- 6 -

50Ω

FB

V

+

!

!!

! TERMINA L DESCRIPTION

NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT

TERMINAL

DC

VOLTAGE

1

3

20

18

IN1

IN2

IN3

IN4

Input 1

Input 2

Input 3

Input 4

V

+

/2

2

4

19

17

OUT1

OUT2

OUT3

OUT4

Output 1

Output 2

Output 3

Output 4

V

+

/2

5

6

16

15

CVOL1

CVOL2

CVOL3

CVOL4

DAC Output for Volume 1

DAC Output for Volume 2

DAC Output for Volume 3

DAC Output for Volume 4

V

+

/2 – 0.7V

(0dB setting)

7 ADR Slave Address Setting

82(h)

V

ADR

> V

+

/2

80(h)

V

ADR

< 1.0V

20kΩ

V

+

8kΩ

V

+

12kΩ

4kΩ

V

+

NJW1184

-7-

!

!!

! TERMINA L DESCRIPTION

NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT

TERMINAL

DC

VOLTAGE

8

9

SDA

SCL

SDA Data Input (I

2

C BUS)

SCL Data Input (I

2

C BUS)

-

12 Vref

Reference Voltage

V

+

/2

13

14

AUX0

AUX1

Auxiliary Output 0

Auxiliary Output 1

0V / 5V

12kΩ

4kΩ

SCL:GND

SDA:ACK

VREG 5V

200kΩ

V

+

50Ω

VREG 5V

V

+

V

+

NJW1184

- 8 -

■

■■

■ A PPLICATION CIRCUIT

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

IN1

NJW1184

OUT1

OUT2

IN2

CVOL1

CVOL2

SDA

A

D

R

IN3

OUT3

OUT4

IN4

CVOL3

CVOL4

AUX0

AUX1

SCL

GND

Vre

f

V+

10µF

1µF

1µF1µF

1µF

0.47µF

0.47µF0.47

µF

0.47µF

4.7µF

4.7µF4.7µF

4.7µF

+

NJW1184

-9-

■

DEFINITION OF I

2

C REGISTER

●

●●

● I

2

C BUS FORMAT

MSB LSB MSB LSB MSB LSB

S Slave Address A Select Address A Data A P

1bit 8bit 1bit 8bit 1bit 8bit 1bit 1bit

S: Starting Term

A: Acknowledge Bit

P: Ending Term

●

●●

● SLAVE ADDRESS

MSB LSB

1 0 0 0 0 0 ADR R/W

ADR: Hardware pin programmable address bits

80(h), 82(h)

R/W=0: Write mode for register setting

R/W=1: Not available

●

●●

● CONTROL REGISTER TABLE

The select address sets each function (Volume, Aux).

The auto-increment function cycles the select address as follows.

00H→01H→02H→03H→04H→00H

BIT

Select

Address D7 D6 D5 D4 D3 D2 D1 D0

00H VOL-1

01H VOL-2

02H VOL-3

03H VOL-4

04H

Don’t Care Don’t Care Don’t Care Don’t Care Don’t Care Don’t Care

AUX1 AUX0

●

●●

● CONTROL REGISTER DEFAULT VALUE

Control register default value is all “0”.

BIT

Select

Address D7 D6 D5 D4 D3 D2 D1 D0

00H 0 0 0 0 0 0 0 0

01H 0 0 0 0 0 0 0 0

02H 0 0 0 0 0 0 0 0

03H 0 0 0 0 0 0 0 0

04H 0 0 0 0 0 0 0 0

NJW1184

- 10 -

■

■■

■ I

2

C CONTROL COMMAND DESCRIPTION

a) Master Volume (Select Address: 00H, 01H, 02H, 03H)

Volume level : 0 to –100dB(0.5dB/step), MUTE

VOL-1 / VOL-2 / VOL-3 / VOL-4

Gain(dB) HEX D7 D6 D5 D4 D3 D2 D1 D0

0 FF 1 1 1 1 1 1 1 1

-0.5 FE 1 1 1 1 1 1 1 0

-1.0 FD 1 1 1 1 1 1 0 1

-1.5 FC 1 1 1 1 1 1 0 0

-2.0 FB 1 1 1 1 1 0 1 1

-2.5 FA 1 1 1 1 1 0 1 0

-3.0 F9 1 1 1 1 1 0 0 1

-3.5 F8 1 1 1 1 1 0 0 0

-4.0 F7 1 1 1 1 0 1 1 1

-4.5 F6 1 1 1 1 0 1 1 0

-5.0 F5 1 1 1 1 0 1 0 1

-5.5 F4 1 1 1 1 0 1 0 0

-6.0 F3 1 1 1 1 0 0 1 1

-6.5 F2 1 1 1 1 0 0 1 0

-7.0 F1 1 1 1 1 0 0 0 1

-7.5 F0 1 1 1 1 0 0 0 0

-8.0 EF 1 1 1 0 1 1 1 1

-8.5 EE 1 1 1 0 1 1 1 0

-9.0 ED 1 1 1 0 1 1 0 1

-9.5 EC 1 1 1 0 1 1 0 0

-10.0 EB 1 1 1 0 1 0 1 1

-10.5 EA 1 1 1 0 1 0 1 0

-11.0 E9 1 1 1 0 1 0 0 1

-11.5 E8 1 1 1 0 1 0 0 0

-12.0 E7 1 1 1 0 0 1 1 1

-12.5 E6 1 1 1 0 0 1 1 0

-13.0 E5 1 1 1 0 0 1 0 1

-13.5 E4 1 1 1 0 0 1 0 0

-14.0 E3 1 1 1 0 0 0 1 1

-14.5 E2 1 1 1 0 0 0 1 0

-15.0 E1 1 1 1 0 0 0 0 1

-15.5 E0 1 1 1 0 0 0 0 0

-16.0 DF 1 1 0 1 1 1 1 1

-16.5 DE 1 1 0 1 1 1 1 0

-17.0 DD 1 1 0 1 1 1 0 1

･･･・・・・・・・・・・・・・・・・・・・・・・・・・・・

-99.5 38 0 0 1 1 1 0 0 0

-100.0 37 0 0 1 1 0 1 1 1

･･･・・・・・・・・・・・・・・・・・・・・・・・・・・・

Mute 00 0 0 0 0 0 0 0 0

NJW1184

-11-

b) A UXILIARY SETTING

BIT

Select

Address D7 D6 D5 D4 D3 D2 D1 D0

04H

Don’t Care

Don’t Care Don’t Care Don’t Care Don’t Care Don’t Care

AUX1 AUX0

•

AUX1/AUX0: Auxiliary port High/Low

“0” : Logic output ”Low”

“1” : Logic output ”High”

NJW1184

- 12 -

! TYPICAL CHARACTERISTICS

Supply Current v s Temparature

V+=9V , Vin=No Signal , Volume=0dB

0

1

2

3

4

5

6

7

8

9

10

-50 -25 0 25 50 75 100 125

Temparature [℃]

Supply Current [mA]

Reference Voltage vs Temparature

V+=9V , Vin=No Signal , Volume=0dB

0

1

2

3

4

5

6

7

8

9

10

-50 -25 0 25 50 75 100 125

Temparature [℃]

Reference Voltage [V]

Supply Current vs Supply Voltage

Vin=No Signal , Volume=0dB

0

1

2

3

4

5

6

7

8

9

10

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Supply Voltage [V]

Supply Current [mA]

Ta=85℃

-40℃

25℃

Reference Voltage vs Supply Voltage

Vin=No Signal , Volume=0dB

0

2

4

6

8

10

12

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Supply Voltage[V]

Reference Voltage[V]

Ta=85,25,-40℃

O ut Noise vs Temparature

V+=9V, Rg=600Ω, A -Weighting

-120

-100

-80

-60

-40

-20

0

-50 -25 0 25 50 75 100 125

Temparature [℃]

Out Noise [dBV]

vol=0dB

vol=mute

Mute Level vs Temparature

V+=9V , Rg=600Ω,Vin=1Vrms , A-Weighting

-120

-100

-80

-60

-40

-20

0

-50 -25 0 25 50 75 100 125

Temparature [℃]

Mute Level [dB]

NJW1184

-13-

! TYPICAL CHARACTERISTICS

THD+N vs Input Volta ge (Temparature)

V+=9V, Vin=CH1, f =1kHz, volume=0dB

Rg=600Ω, BW=400Hz-30kHz, Vout=OUT1

0.01

0.1

1

10

0.01 0.1 1 10

Input Voltage [V]

THD+N[%

]

Ta=85℃

25℃

-40℃

THD+N vs Input Volta g e (Volume Control)

V+=9V, Vin=CH1, f=1kHz, Ta=25℃

Rg=600Ω, BW=400Hz-30kHz, Vout=OUT1

0.01

0.1

1

10

0.01 0.1 1 10

Input Voltage [V]

THD+N [%

]

vol=0dB

-10dB

-20dB

-30dB

Channel Separation vs Frequency

V+=9V , Vin=1Vrms , A-Weighting , Rg=600Ω

Vin:IN2+IN3+IN4 , Vout:OUT1

-100

-80

-60

-40

-20

0

10 100 1000 10000 100000

Frequency [Hz]

Channel Separation[dB]

Ta=85, 25, -40℃

Channel Separation vs Frequency

V+=9V , Vin=1Vrms , A-Weighting , Ta=25℃

Rg=600Ω

-100

-80

-60

-40

-20

0

10 100 1000 10000 100000

Frequency [Hz]

Channel Separation [dB]

OUT1,OUT2,OUT3,OUT4

THD+N vs Output Volta g e (Temparature)

V+=9V, Vin=CH1, f =1kHz, volume=0dB

Rg=600Ω, BW=400Hz-30kHz, Vout=OUT1

0.01

0.1

1

10

0.01 0.1 1 10

Output Voltage [V]

THD+N [%

]

Ta=85℃

-40℃

25℃

THD+N vs O utput Voltage (Volume Contorol)

V+=9V, Vin=CH1, f=1kHz, Ta=25℃

Rg=600Ω, BW=400Hz-30kHz, Vout=OUT1

0.01

0.1

1

10

0.01 0.1 1 10

Output Voltage [V]

THD+N [%

]

vol=0dB

-10dB

-20dB

-30dB

NJW1184

- 14 -

! TYPICAL CHARACTERISTICS

Gain vs Volume Control (Temparature)

V+=9V, Rg=600Ω, Vin=1Vrms,Vin=IN1

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

0 20406080100120

Volume Control[dB]

Gain[dB]

Ta=85, 25, -40℃

Vout=OUT1

Channel Balance vs Volume Control (CH1-CH2)

Vin=1Vrms,V+=9V

-5

-4

-3

-2

-1

0

1

2

3

4

5

0 20406080100120

Volume Control [dB]

Channel Balance [dB]

Ta=85, 25, -40℃

Channel Balance vs Volume Control (CH3-CH4)

Vin=1Vrms,V+=9V

-5

-4

-3

-2

-1

0

1

2

3

4

5

0 20406080100120

Volume Control [dB]

Channel Balance [dB]

Ta=- 40℃

Ta=85, 25

Gain vs Volume Control

V+=9V, Rg=600Ω, Vin=1Vrms,Ta=25℃

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

0 20 40 60 80 100 120

Volume Control[dB]

Gain[dB]

Vout=OUT1,2,3,4

Maximum Output Voltage vs RL

V+=9V , THD=1%

0

0.5

1

1.5

2

2.5

3

0.1 1 10 100

R

L

[kΩ]

Maximum Output Voltage [Vrms

]

NJW1184

-15-

[CAUTION]

The specifications on this databook are only

given for information , without any guarantee

as regards either mistakes or omissions. The

application circuits in this databook are

described only to show representative usages

of the product and not intended for the

guarantee or permission of any right including

the industrial rights.