NJW1151M - New Japan Radio Co., Ltd.

- 1 -

NJW1151

6-CHANNEL ELECTRONIC VOLUME

■

■■

■ GENERAL DESCRIPTION ■

■■

■ PACKAGE OUTLINE

The NJW1151 is a 6-CHANNEL ELECTRONIC VOLUME,

which also includes tone control, balance and trim level

control. The NJW1151 is suitable for multi-channel audio

system, such as AV amplifier, mini stereo component,

speaker system, and others.

All of internal status and variables are controlled by I

2

C

BUS interface.

■

■■

■ FEATURES

● Operating Voltage +8.0 to +15.0V

● I

2

C BUS Interface

● 6-Chnnel Master Volum e 0 to –79dB, MUTE

● Balance control for L, R-ch 0 to –30dB, MUTE

● Trim Level Control for C, SL, SR, SW-ch 0 to –20dB

● Independent Tone Control (Bass, Treble) for L, R-ch

● Bi-CMOS Technology

● Package Outline SDMP30

■

■■

■ BLOCK DIAGRAM

NJW1151M

Balance

Control

Level Trim

Master

Volume

Tone Control

Bass/Treble

I

2

C BUS

Interface

Powe

r

Supply

+8 to +15V

Lch TONE in

Rch TONE in Lch TONE out

Rch T ON E out

Lch in

Rch in

Lch out

Rch out

C-ch in

SL-ch in

SR-ch in

SW-ch in

C-ch out

SL-ch out

SR-ch out

S W-ch out

- 2 -

NJW1151

■

■■

■ PIN FUNCTION

No. SYMBOL FUNCTION No. SYMBOL FUNCTION

1 VREF Reference voltage

16 SCL I

2

C bus clock input

2 V+ Power supply voltage

17 SDA I

2

C bus data input

3 VREFC Reference voltage stabilization capacitor

18 SWOUT Volume Sub Woofer channel output

4 RTIN Tone control Right channel input

19 SROUT Volume Surround Right channel output

5 RTOUT Tone control Right channel output

20 SLOUT Volume Surround Left channel volume

output

6 RTC Tone control Right channel

Treble filter capacitor 21 COUT Volume Center channel output

7 RBC1 Tone control Right channel

Bass filter capa cit or 22 ROUT Volume Right channel output

8 RBC2 Tone control Right channel

Bass filter capa cit or 23 LOUT Volume Left channel output

9 RBC3 Tone control Right channel

Bass DC cut cap ac itor 24 LBC3 Tone control Left channel

Bass DC cut cap ac itor

10 LIN Volume Left channel input

25 LBC2 Tone control Left channel

Bass filter capa cit or

11 RIN Volume Right channel input

26 LBC1 Tone control Left channel

Bass filter capa cit or

12 CIN Volume Center channel input

27 LTC Tone control Left channel

Treble filter capacitor

13 SLIN Volume Surround Left channel input

28 LTOUT Tone control Left channel output

14 SRIN Volume Surround Right channel input

29 LTIN Tone control Left channel input

15 SWIN Volume Sub Woofer channel input

30 GND Ground

(IC substrate)

1 15

16 30

- 3 -

NJW1151

■

■■

■ ABSOLUTE MAXIMUM RATING (Ta=25°

°°

°C)

PARAMETER SYMBOL RATING UNIT

Suppl y Voltag e V

+

+15 V

Maximum Input Voltage V

IM

V

+

(✴)

V

Power Dissipation P

D

700 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 to V+

■

■■

■ ELECTRICAL CHARACTERISTICS ( Ta=25°

°°

°C,V

+

=14V, V

DD

=5V)

PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT

♦

♦♦

♦Power Supply

Operating Voltage V

+

8.0 14.0 15.0 V

Supply Current I

CC

No Signal - 10 30 mA

♦

♦♦

♦Input/Output Characteristics

Voltage Gain G

V

IN

=1Vrms, f=1kHz

Master=0d B, Bal anc e =0dB

Trimmer=0dB -0.5 0 0.5 dB

Voltage Gain Error ∆G

V

IN

=1Vrms, f=1kHz

Master=0dB -0.5 0 0.5 dB

Maximum Attenuation 1 A

TT1

f=1kHz, V

IN

=1Vrms

Master=-79dB - -79 - dB

Maximum Attenuation 2 A

TT2

f=1kHz, V

IN

=1Vrms

Mute - -90 - dB

Attenuation Error ∆A

TT

f=1kHz, V

IN

=1Vrms

Master=-50dB

Trimmer=-10dB -1 0 1 dB

Maximum Output Voltage V

OM

f=1kHz,THD=1%

Master=0dB 3.0 4.0 - Vrms

Output Noise V

NO

Master=0dB,

Rg=0,A-weight - -110

(3.2µ) -100

(10µ)dBV

(Vrms)

Total Harmonic Distortion T.H.D. f=1kHz,Vo=1Vrms,

Master=0dB,T rimmer=0dB - 0.005 0.05 %

Channel Separation CS f=1kHz,Vo=1Vrms

Master=0dB,A-weight - -90 -80 dB

♦

♦♦

♦Tone Control Characteristics

T reble Boost Gain1 HF

BST

Vo=1Vrms f=10kHz

Treble=10dB 8 10 12 dB

T reble Boost Gain2 HF

CUT

Vo=1Vrms f=10kHz

Treble=-10dB -12 -10 -8 dB

Bass Boost Gain1 LF

BST

Vo=1Vrms f=50Hz

Bass=10dB 8 10 12 dB

Bass Boost Gain2 LF

CUT

Vo=1Vrms f=50Hz

Bass=-10dB -12 -10 -8 dB

- 4 -

NJW1151

■

■■

■ I

2

C BUS Block CHARACTERISTICS (SDA, SCL)

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

High Level Input Voltage V

IH

3.0 - 5.0 V

Low Level Inp ut Vo ltage V

IL

0 - 1.5 V

High Level Input Current I

IH

- - 10 µA

Low Level Input Current I

IL

- - 10 µA

Low Level Output Voltage (3mA at SDA pin) V

OL

0 - 0.4 V

Maximum Output Current I

OL

-3.0 - - mA

Maximum Clock Frequency f

SCL

- - 100 kHz

Data Change Minimum Waiting Time t

BUF

4.7 - - µs

Data Transfer Start Minimum Waiting Time t

HD:STA

4.0 - - µs

Low Level Clock Pulse Width t

LOW

4.7 - - µs

High Level Clock Pulse Width T

HIGH

4.0 - - µs

Minimum Start Preparation Waiting Time t

SU:STA

4.7 - - µs

Minimum Data Hold Time t

HD:DAT

0 - 3.45 µs

Minimum Data Preparation Time t

SU:DAT

250 - - ns

Rise T i me t

R

- - 1.0 µs

Fall Time t

F

- - 300 ns

Minimum Stop Preparation Waiting Time t

SU:STO

4.7 - - µs

I

2

C BUS Load Condition: Pull up resistance 4kΩ (Connected to +5 V)

Load capacitance 200pF (Connected to GND)

SD

A

SCL

t

BU

t

HD:ST

Sr

P

t

LOW

t

R

t

HD:DA

t

HIGH

t

F

t

SU:DA

S

P

t

SU:ST

t

SU:ST

t

HD:ST

- 5 -

NJW1151

■

■■

■TERMINAL DESCRIPTION

No. SYMBOL FUNCTION EQUIVALENT CIRCUIT

TERMINAL

VOLTAGE

1

VREF

Reference voltage

V+ / 2

2 V+

Power supply voltage

V

+

3 VREFC

Reference voltage stabilization

capacitor

V+ / 2

4

29

RTIN

LTIN

Tone control

Right channel input

Left channel input

V+ / 2

GND

GND VREF

V+

300 50K

GND

V+

GND

50K

- 6 -

NJW1151

■

■■

■TERMINAL DESCRIPTION

No. SYMBOL FUNCTION EQUIVALENT CIRCUIT

TERMINAL

VOLTAGE

5

28

RTOUT

LTOUT

Tone control

Right channel output

Left channel output

V+ / 2

6

27

RTC

LTC

Tone control

Right channel

Treble filter capacitor

Left channel

Treble filter capacitor

V+ / 2

7

26

RBC1

LBC1

Tone control

Right channel

Bass filter capacitor

Left channel

Bass filter capacitor

V+ / 2

8

25

RBC2

LBC2

Tone control

Right channel

Bass filter capacitor

Left channel

Bass filter capacitor

V+ / 2

V+

GND

30

2K

GND

V+

2K

30

4K

V+

30

GND

V+

30

10K

- 7 -

NJW1151

■

■■

■TERMINAL DESCRIPTION

No. SYMBOL FUNCTION EQUIVALENT CIRCUIT

TERMINAL

VOLTAGE

9

24

RBC3

LBC3

Tone control

Right channel

Bass DC cut capacitor

Left channel

Bass DC cut capacitor

V+ / 2

10

11

12

13

14

15

LIN

RIN

CIN

SLIN

SRIN

SWIN

Volume

Left channel input

Right channel input

Center channel input

Surround Left channel input

Surround Right channel input

Sub Woofer channel input

V+ / 2

16 SCL I

2

C bus clock input

-

17 SDA I

2

C bus data input

-

GND

300

10K

Rp

VDD

(

R

p

;

External

p

ull u

p

resistor

)

(

R

p

;

External

p

ull u

p

resistor

)

GND

300

V+

50K

VREF

30

2K

GND

V+

GND

300

GND

10K

R

p

VDD

10K

- 8 -

NJW1151

■

■■

■TERMINAL DESCRIPTION

No. SYMBOL FUNCTION EQUIVALENT CIRCUIT

TERMINAL

VOLTAGE

18

19

20

21

22

23

SWOUT

SROUT

SLOUT

COUT

ROUT

LOUT

Volume

Left channel output

Right channel output

Center channel output

Surround Left channel output

Surround Right channel output

Sub Woofer channel output

V+ / 2

GND

V+

300

- 9 -

NJW1151

■

■■

■APPLICATION CIRCUIT

LBC1

LBC2

LIN

RIN

RTOUT

RTIN

RBC1

RTC

RBC2

CIN

SLIN

SWIN

SRIN

LBC3

V+

VREF

GND

LOUT

ROUT

COUT

SLOUT

SROUT

SWOUT

SDA

SCL

RBC3

LTC

10µF

680nF

10 nF

10µF

680nF

LTIN

LTOUT

4.7µF

10µF

4.7µF

BALANCE

TRIMMER

TONE CONTROL

I2C BUS

INTERFACE

100µF

+14V

100µF

VREFC

- 10 -

NJW1151

■

■■

■ Definition of cut-off frequency for Tone Control

Cut-off frequency for Tone Control is adjustable with changing the capacitor C1, C2 in below circuit.

See the next function for the cut-off frequency.

EX) C1 =10uF, C2 = 680nF

Cut-off frequency for Treble = 3.9kHz

Cut-off frequency for Bass = 238Hz

1) TREBLE =+/-10dB 2) BASS =+/-10dB

2107.161

6

C

fc

−

∗

=

1

102.39

6

C

fc

−

∗

=

Tone

Control

LTIN/RTIN

LTOUT/RTOUT

LTC/RTC

LBC1/RBC1

LBC2/RBC2

LBC3/RBC3

4.7uF

C1

C2

10uF

- 11 -

NJW1151

■

■■

■ DEFINITION OF I

2

C REGISTER

●

●●

● I

2

C BUS FORMAT

S: Starting Term A: Acknowledge Bit P: Ending Term

MSB LSB MSB LSB MSB LSB

S Slave Address A Select Address A Data A P

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

●

●●

● SLAVE A DDRESS

MSB LSB

1 0 0 0 1 0 0 R/W

R/W=0: Receive Only

R/W=1: No Output Data

●

●●

● CONTROL REGISTER TABLE

BIT

Select

Address

D7 D6 D5 D4 D3 D2 D1 D0

00H

* Master Volume

01H

* Left channel Balance

02H

* Right channel Balance

03H

* Center Channel Trimmer

04H

* SL Channel Trimmer

05H

* SR Channel Trimmer

06H

* SW Channel Trimmer

07H

Tone (Treble) Tone (Bass)

08H

* MUTE

* : Don’t care.

On Power up, the master volume mute is activated.

●

●●

● CONTROL REGISTER DEFAULT VALUE

BIT

Select

Address

D7 D6 D5 D4 D3 D2 D1 D0

00H

0 1 0 1 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 1 0 1 0

04H

0 0 0 0 1 0 1 0

05H

0 0 0 0 1 0 1 0

06H

0 0 0 0 1 0 1 0

07H

0 0 0 0 0 0 0 0

08H

0 0 0 0 0 0 0 0

- 12 -

NJW1151

●

●●

● CONTROL COMMAND TABLE

BIT

Select

Address D7 D6 D5 D4 D3 D2 D1 D0 REMARKS

VOL

0 0 0 0 0 0 0

0 0 0 0 0 0 1

0 0 0 0 0 1 0

:

1 0 0 1 1 1 1

00H

*

1 0 1 0 0 0 0

VOL : Volume control for all channel (1dB/step)

Ex.)

“0000000”= 0dB

“0000001”=-1dB

“0000010”=- 2dB

.

“1001111”=-79dB

“1010000”=MUTE:Default Value

Maximum Attenuation : Master Volume :–79dB

Trimmer -20dB

Minimum Attenuation : Master Volume 0dB

Trimmer 0dB

L-BAL

0 0 0 0 0

0 0 0 0 1

0 0 0 1 0

:

01H

*

1 1 1 1 1

L-BAL : Balance control for Left channel (1dB/step)

Ex.)

“00000”=0dB

“00001”=-1dB

:

“11110”=-30dB

“11111”=MUTE

R-BAL

0 0 0 0 0

0 0 0 0 1

0 0 0 1 0

:

02H

*

1 1 1 1 1

R-BAL : Balance control for Right channel (1dB/step)

Ex.)

“00000”=0dB

“00001”=-1dB

:

“11110”=-30dB

“11111”= MUTE

C TRIM

0 0 0 0 0

0 0 0 0 1

0 0 0 1 0

:

03H

*

1 0 1 0 0

C TRIM :Center Channel Trimmer Control

Ex.)

“00000”=0dB

“00001”=-1dB

“00010”=-2dB

:

“10100”=-20dB “00001010”=-10dB Default Value

SL TRIM

0 0 0 0 0

0 0 0 0 1

0 0 0 1 0

:

04H

*

1 0 1 0 0

SL TRIM :SL Channel Trimmer Control

Ex.)

“00000”=0dB

“00001”=-1dB

“00010”=-2dB

:

“10100”=-20dB “00001010”=-10dB Default Value

SR TRIM

0 0 0 0 0

0 0 0 0 1

0 0 0 1 0

:

05H

*

1 0 1 0 0

SR TRIM :SR Channel Trimmer Control

Ex.)

“00000”=0dB

“00001”=-1dB

“00010”=-2dB

:

“10100”=-20dB “00001010”=-10dB Default Value

SW TRIM

0 0 0 0 0

0 0 0 0 1

0 0 0 1 0

:

06H

*

1 0 1 0 0

SW TRIM :SW Channel Trimmer Control

Ex.)

“00000”=0dB

“00001”=-1dB

“00010”=-2dB

:

“10100”=-20dB “00001010”=-10dB Default Value

- 13 -

NJW1151

●

●●

● CONTROL COMMAND TABLE

BIT Select

Address

D7 D6 D5 D4 D3 D2 D1 D0 REMARKS

TREBLE BASS

1 1 0 1 1 1 0 1

1 1 0 0 1 1 0 0

:

1 0 0 0 1 0 0 0

0 0 0 0 0 0 0 0

:

0 1 0 0 0 1 0 0

07H

0 1 0 1 0 1 0 1

TONE CONTROL

Ex.) “11011101”=+10dB

“11001100”=+8dB

:

“10001000”=0dB

“00000000”=0dB

:

“01000111”=-8dB

“01010101”=-10dB

MUTE

0

08H * 1

MUTE CONTROL

Ex.) “0”=OFF

“1”=MUTE

D5=L ch,D4=R ch,D3=C ch,D2=SL ch,D1=SR ch,D0=SW ch

- 14 -

NJW1151

■ TYPICAL CHARACTERISTICS

Volume THD+N vs. Input Level

Vin=1Vrms V+=14V Ta=25°C

0.001

0.01

0.1

1

10

-60 -40 -20 0 20

Input Level [dBV]

THD+N [%

]

20kHz

1kHz 20Hz

O perating Current vs. Supply Voltage

Ta=25°C

0.0

3.0

6.0

9.0

12.0

15.0

03691215

Supply Voltage [V]

Operating Current [mA]

ICC

Volume At tenuat ion Level vs. S ett ing Level

V+= 14V f = 1k Hz T a= 25°C

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

-10

0-90-80-70-60-50-40-30-20-100

Sett ing Level [ dB ]

Att enuation Level [dB]

L,C,R,SL,S

R,SWch

Mute

-79

T one Control Vol tage Gain vs Frequency

V+=14V Vi n=1Vrms T a=25°C

-15

-10

-5

0

5

10

15

1.E+01 1.E+02 1.E+03 1.E+04 1.E+05

Frequency [kHz]

Voltage Gain [dB]

0.01 0.1 110 100

Treble

Bass +10dB

+8dB

+6dB

+4dB

+2dB

0dB

-2dB

-4dB

-6dB

-8dB

-10dB

+10dB

+8dB

+6dB

+4dB

+2dB

0dB

-2dB

-4dB

-6dB

-8dB

-10dB

Volume THD+N vs. Input Level

V+=14V T a=25°C

0.001

0.01

0.1

1

10

-60 -40 -20 0 20

Input Level [dBV]

THD+N [%

]

A

TT=-10dB

A

TT=-5dB

A

TT=0dB

Tone Control THD +N vs. Input Level

(ATT=0dB;Flat)

Vin=1Vrms V+=14V Ta=25°C

0.001

0.01

0.1

1

10

-60 -40 -20 0 20

Input Level [dBV]

THD+N [%

]

20kHz

1kHz

20Hz

- 15 -

NJW1151

■ TYPICAL CHARACTERISTICS

Tone Control THD +N vs. Frequency

(ATT=0dB;Flat)

V+=14V T a=25°C

0.001

0.01

0.1

1

10

1.E+01 1.E+02 1.E+03 1.E+04 1.E+05

Frequency [kHz]

THD+N [%

]

2Vrms

1Vrms

0.1Vrms

0.01 0.1 110 100

ｒ

O perating Current vs. Ambient Temperature

V+=14V

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

-75 -50 -25 0 25 50 75 100 125 150

Ambient Temperature [°C]

Operating Current [mA]

Volume Voltage Gain vs. Ambient Temperature

(Master Volume=0dB)

V+=14V Vin=1Vrms f= 1kHz

-0.5

-0.4

-0.3

-0.2

-0.1

0.0

0.1

0.2

0.3

0.4

0.5

-75 -50 -25 0 25 50 75 100 125 150

Ambient Temperature [°C]

Voltage Gain [dB]

∆GV

GV_L,R,C,S

L,SR,SW

Volume Attenuati on Level vs. Ambient Temperature

(Master Volume=-79dB)

V+=14V Vin=1Vrms f= 1kHz

-100

-90

-80

-70

-60

-50

-75 -50 -25 0 25 50 75 100 125 150

Ambient Temperature [°C]

Attenuation Level [dB]

ATT_L,R,C,

SL,SR,SW

Volume Attenuati on Level vs. Ambient Temperature

(Master Volume=Mute)

V+=14V Vin=1Vrms f= 1kHz

-120

-110

-100

-90

-80

-70

-60

-50

-75 -50 -25 0 25 50 75 100 125 150

Ambient Temperature [°C]

Attenuation Level [dB]

ATT_L,R,C,

SL,SR,SW

Volume Attenuati on Level vs. Ambient Temperature

(Master=-50dB, Trimmer= -10dB)

V+=14V Vin=1Vrms f= 1kHz

-100

-90

-80

-70

-60

-50

-75 -50 -25 0 25 50 75 100 125 150

Ambient Temperature [°C]

Attenuation Level [dB]

ATT_L,R,C,

SL,SR,SW

- 16 -

NJW1151

■ TYPICAL CHARACTERISTICS

Volum e Max im um Out put Volt age vs . Am bient Temperat ure

V+=14V f=1kHz

0

2

4

6

8

10

-75 -50 -25 0 25 50 75 100 125 150

Ambient Temperature [°C]

Maximum Output Voltage [Vrms

]

VOM_L,R,C,

SL,SR,SW

Volume Output Noise Vol tage vs. Ambient T emperature

V+=14V A-Weighted

-120

-110

-100

-90

-80

-70

-60

-75 -50 -25 0 25 50 75 100 125 150

Ambient Temperature [°C]

Output Noise V oltage [dB V]

Vno_L,R,C,

SL,SR,SW

Volume THD+N vs. Ambient Temperature

V+=14V Vin=1Vrms f= 1kHz

0.001

0.01

0.1

1

10

-75 -50 -25 0 25 50 75 100 125 150

Ambient Temperature [°C]

THD+N [%

]

THD_L,R,C,S

L,SR,SW

Tone Control Voltage Gain vs. Ambient Temperature

V+=14V Vin=1Vrms f=10kH z

-15

-10

-5

0

5

10

15

-75 -50 -25 0 25 50 75 100 125 150

Ambient Temperature [°C]

Voltage Gain [dB]

TREBLE+10dB

TREBLE-10dB

Tone Control Voltage Gain vs. Ambient Temperature

V+=14V Vin=1Vrms f= 50Hz

-15

-10

-5

0

5

10

15

-75 -50 -25 0 25 50 75 100 125 150

Ambient Temperature [°C]

Voltage Gain [dB]

BASS+10dB

BASS-10dB

Volume THD+N vs. Input Voltage

(Master Volume=0dB)

V+=14V

0.001

0.01

0.1

1

10

-60 -40 -20 0 20

Input Voltage [dBV]

THD+N [%

]

Ta=25°

C

Ta＝-40°C

Ta=85°C

- 17 -

NJW1151

■ TYPICAL CHARACTERISTICS

[CAUTION]

The specifications on this databook are only

given for information , without any guarantee

as regards either mistakes or omi ssions. 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.

Tone Control THD +N vs. Input Voltage

(ATT=0dB;Flat)

V+=14V

0.001

0.01

0.1

1

10

-60 -40 -20 0 20

Input Voltage [dBV]

THD+N [%

]

Ta=25°

C

Ta=-40°

C

Ta=85°C