JRC NJW1136 User Manual

NJW1136

(1/24) G

AUDIO PROCESSOR with Subwoofer Output

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■ GENERAL DESCRIPTION ■

■■

■ PACKAGE OUTLINE

The NJW1136 is a sound processor with subwoofer

output includes all of functions processing audio signal for

TV, such as tone control, balance, volume, mute, and AGC

functions.

Also the NJW1136 includes the LPF for subwoofer output

and bass boost function.

The original surround system reproduces natural surround

sound and clear vocal orientation.

All of internal status and variables are controlled by I

2

C

BUS interface.

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■ FEATURES

●

●●

● Operating Voltage 8 to 13V

●

●●

● 3ch Output(Lch, Rch, Subwoofer ch) / 2ch Output(Lch, Rch)

●

●●

● LPF Filter (Adjustable cut off frequency by external parts)

●

●●

● AGC Circuit (It reduces volume difference among input sources.)

Adjustable AGC boost level by external parts and AGC compression level by I

2

C BUS

●

●●

● eala(NJRC Original Surround System)

●

●●

● Simulated Stereo

●

●●

● I

2

C BUS Interface

●

●●

● Bi-CMOS Technology

●

●●

● Package Outline SOP32, DIP32

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■ BLOCK DIAGRAM

AGC

Bia s

TONE

VOL2

TONE

VOL2

LPF

eal a

&

Simul ated

St ereo

AGC1

AGC2

IN b

IN a

CVA

CVB

CVW

CTH

CTL

CSR

PORT1

PORT0

AUX1

AUX0

GND

V+

SCL SDA ADR

Vref

TONE

-Ha

SS-FIL

SR-FIL

TONE

-Hb

TONE

-La

TONE

-Lb

LF1

LF2

LF3

OUTa

OUTb

OUTw

VOL2

VOL1

I

2

CBUS

Int erf ace

Trimmer

PRELIMINAR

Y

NJW1136LNJW1136GL1

NJW1136D

查询NJW1136供应商

NJW1136

(

2/24

)

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■PIN CONFIGURATION

No. Symbol Function No. Symbol Function

1 INa Ach input terminal 17 V+ Supply voltage terminal

2 SR-FIL Surround filter terminal 18 Vref Reference voltage terminal

3 SS-FIL Simulated stereo filter terminal 19 CSR DAC output terminal for surround control

4 TONE-Ha Ach tone control (treble) filter terminal 20 CTL DAC output terminal for tone control (bass)

5 TONE-La Ach tone control (bass) filter terminal 21 CTH DAC output terminal for tone control (treble)

6 OUTw Subwoofer output terminal 22 CVW Bch DAC output terminal for LPF trimmer

7 OUTa Ach output terminal 23 CVB Bch DAC output terminal for volume and balance

8 AGC1 AGC attack and recovery time setting terminal 24 CVA Ach DAC output terminal for volume and balance

9 AUX0

(

✳

)

Auxiliary 3 values voltage output terminal

(0.0V, 2.5V, 5V)

25 AGC2 AGC boost level setting terminal

10 AUX1

Auxiliary 2 values voltage output terminal

(0.0V, V+)

26 OUTb Bch output terminal

11 PORT0 Logic input terminal 27 TONE-Lb Bch tone control (bass) filter terminal

12 PORT1 Logic input terminal 28 TONE-Hb Bch tone control (treble) filter terminal

13 ADR Slave address setting terminal 29 LF3 LPF filter3 terminal

14 SDA I

2

C data terminal 30 LF2 LPF filter2 terminal

15 SCL I

2

C cock terminal 31 LF1 LPF filter1 terminal

16 GND Ground terminal 32 INb Bch input terminal

(

✳

)

The AUX0 terminal should be connected via the protection resistance to 5V device.

INa

SR-FIL

SS-FIL

TONE-La

OUTa

TONE-Ha

OUTW

A

GC1

A

UX0

PORT0

PORT1

SD

A

SCL

GND

INb

LF1

LF2

TONE-Hb

TONE-Lb

OUTb

A

GC2

CV

A

CTH

CTL

CSR

V+

LF3

A

UX1

A

DR

CVB

Vre

f

CVW

NJW1136

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■

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■ ABSOLUTE MAXIMUM RATING (Ta=25°C)

PARAMETER SYMBOL RATING UNIT

Supply Voltage V

+

15 V

Power Dissipation P

D

700 mW

Operating Temperature Range Topr -20 to +75 °C

Storage Temperature Range Tstg -40 to +125 °C

■

■■

■ ELECTRICAL CHARACTERISTICS

( Ta=25°C, V+=9V, Rg=600Ω, R

L

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

Condition

Input

PARAMETER SYMBOL

INa INb

Output

MIN. TYP. MAX. UNIT

Operating Voltage V

+

- - - 8.0 9.0 13.0 V

Supply Current1 I

CC1

No Signal - - -

Supply Current2 I

CC2

No Signal, V+=12V - - -

- 13 25 mA

Reference Voltage V

REF

No Signal - - - 4.0 4.5 5.0 V

V

in

- OUTa

Maximum Input Voltage1 V

IM1

VOL=-20dB,THD=1%

- V

in

OUTb

2.8 3.0 - Vrms

V

in

- OUTa

Maximum Input Voltage2 V

IM2

VOL=-20dB,THD=1%

V+=12V

- V

in

OUTb

- 4.0 - Vrms

V

in

- OUTaMaximum

Output Voltage1

V

OM1

VOL=0dB, THD=1%

- V

in

OUTb

- 2.5 - Vrms

V

in

- OUTaMaximum

Output Voltage2

V

OM2

VOL=0dB, THD=1%

V+=12V

- V

in

OUTb

- 3.5 - Vrms

Channel Balance G

CB

VOL=0dB - - - -1.5 0.0 1.5 dB

Balance Boost A BA

BST

CH S = ”0”,BA L = ” 111111” V

in

V

in

OUTa -2.0 0.0 2.0 dB

Balance Cut A BA

CUT

CH S = ”1”, BA L = ” 111111”

Vin = 1Vrms

V

in

V

in

OUTa - - -70 dB

Balance Boost B BB

BST

CH S = ”1”,BA L = ” 111111” V

in

V

in

OUTb -2.0 0.0 2.0 dB

Balance Cut B BB

CUT

CH S = ”0”, BA L = ” 111111”

Vin = 1Vrms

V

in

V

in

OUTb - - -70 dB

Trimmer Boost TR

BST

VOL=0dB

TRIM = +18dB

V

in

V

in

OUTw 16.0 18.0 20.0 dB

Trimmer Cut TR

CUT

VOL=0dB

TRIM = -44dB

V

in

V

in

OUTw -49.0 -44.0 -39.0 dB

V

in

- OUTa

Total Harmonic Distortion THD

Vo=0.5Vrms,

BW=400Hz to 30kHz

- V

in

OUTb

- - 0.5 %

V

in

- OUTa

Maximum Gain G

VMAX

VOL=0dB

- V

in

OUTb

-2.0 0.0 2.0 dB

V

in

- OUTa

Minimum Gain G

VMIN

VOL=MUTE

Vin=1Vrms

- V

in

OUTb

- - -70 dB

V

in

- OUTb

Channel Separation CS

Vin=1Vrms

BW=400Hz to 30kHz

- V

in

OUTa

- - -70 dB

Output Noise 1 V

NO1

VOL=0dB

BW=400Hz to 30kHz

- - - -

-90

(31.6)

-85

(56.2)

dBV

(µVrms )

Output Noise 2 V

NO2

VOL=MUTE

BW=400Hz to 30kHz

- - - -

-106

(5.0)

-96

(15.8)

dBV

(µVrms )

BW : Band Width

NJW1136

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)

■

■■

■

ELECTRICAL CHARACTERISTICS

(Ta=25°C, V+=9V, Rg=600Ω, R

L

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

Condition

Input

PARAMETER SYMBOL

INa INb

Output

MIN. TYP. MAX. UNIT

♦

♦♦

♦TONE

V

in

- OUTa

High Frequency Boost HF

BST

BCT=”1”

TREB=+15dB, f=10kHz

- V

in

OUTb

12.5 15.0 17.5 dB

V

in

- OUTa

High Frequency Flat HF

FLT

TREB=0, f=10kHz

- V

in

OUTb

-2.0 0.0 2.0 dB

V

in

- OUTa

High Frequency Cut HF

CUT

BCT=”0”

TREB=-15dB, f=10kHz

- V

in

OUTb

-17.5 -15.0 -12.5 dB

V

in

- OUTa

Low Frequency Boost LF

BST

BCB=”1”

BASS=+15dB, f=100Hz

- V

in

OUTb

12.5 15.0 17.5 dB

V

in

- OUTa

Low Frequency Flat LF

FLT

BASS=0, f=100Hz

- V

in

OUTb

-2.0 0.0 2.0 dB

V

in

- OUTa

Low Frequency Cut LF

CUT

BCB=”0”

BASS=-15dB, f=100Hz

- V

in

OUTb

-17.5 -15.0 -12.5 dB

◆AGC

V

in

OUTa

AGC Boost AGC

BST

Vin=50mVrms, f=1kHz

AGC=”1”

V

in

V

in

OUTb

1.5 3.5 5.5 dB

V

in

V

in

OUTa

AGC Flat1 AGC

FLT1

Vin=100mVrms,f=1kHz

AGC=”1”, AGCL=”00”

V

in

V

in

OUTb

-2.5 0.0 2.5 dB

V

in

V

in

OUTa

AGC Flat2 AGC

FLT2

Vin=200mVrms, f=1kHz

AGC=”1”, AGCL=”01”

V

in

V

in

OUTb

-2.5 0.0 2.5 dB

V

in

V

in

OUTa

AGC Flat3 AGC

FLT3

Vin=300mVrms, f=1kHz

AGC=”1”, AGCL=”10”

V

in

V

in

OUTb

-2.5 0.0 2.5 dB

V

in

V

in

OUTa

AGC Flat4 AGC

FLT4

Vin=400mVrms, f=1kHz

AGC=”1”, AGCL=”11”

V

in

V

in

OUTb

-2.5 0.0 2.5 dB

V

in

V

in

OUTa

AGC Cut AGC

CUT

Vin=2Vrms, f=1kHz

AGC=”1”

V

in

V

in

OUTb

-14 -10 -6.0 dB

◆SURROUND

V

in

- OUTa

Surround Gain1 SR

GAIN1

f=100Hz

Surround Effect1

- V

in

OUTb

6.3 8.3 10.3

dB

V

in

- OUTb

Surround Gain2 SR

GAIN2

f=100Hz

Surround Effect1

- V

in

OUTa

2.1 4.1 6.1

dB

V

in

- OUTa

Surround Gain3 SR

GAIN3

f=100 Hz

Surround Effect2

- V

in

OUTb

10.7 12.7 14.7

dB

V

in

- OUTb

Surround Gain4 SR

GAIN 4

f=100Hz

Surround Effect2

- V

in

OUTa

8.4 10.4 12.4

dB

Simulated Stereo1 SR

SIM1

f=1kHz, Simulated Stereo

V

in

V

in

OUTa 1.0 3.0 5.0

dB

Simulated Stereo2 SR

SIM2

f=1kHz, Simulated Stereo

V

in

V

in

OUTb 1.0 3.0 5.0

dB

◆PORT, AUX

Input : High 3.5 - -

PORT0,1 Input Voltage V

PTIN

Input : Low

- - -

- - 1.0

V

Logic Output : High 4.5 - 5.5

Logic Output : Mid 2.0 - 3.0

AUX0 Output Voltage V

AUX0

Logic Output : Low

- - -

0 - 0.5

V

Logic Output : High 3.5 - V+

AUX1 Output Voltage V

AUX1

Logic Output : Low

- - -

0 - 0.5

V

Input : High 3.5 - -

ADR Input Voltage V

ADR

Input : Low

- - -

- - 1.0

V

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■ 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 Input Voltage 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

0 - 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

5.0 - - µs

Minimum Data Preparation Time t

SU:DAT

250 - - ns

Rise Time 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 +5V)

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

NJW1136

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TERMINAL DESCRIPTION

No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE

1

32

INa

INb

Ach input terminal

Bch input terminal

V+/2

6

7

26

OUTw

OUTa

OUTb

Subwoofer output terminal

Ach output terminal

Bch output terminal

V+/2

2 SRFIL Surround filter terminal

V+/2

3 SSFIL Simulated stereo filter terminal

V+/2

4

28

TONE-Ha

TONE-Hb

Treble(tone control) filter terminal

V+/2

80k

20k

Vref

1,32 pin

V+

6, 7, 26pin

FB

100

1.8k

FB

2pin

5.3k

FB

3pin

FB

18k

4, 28pin

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TERMINAL DESCRIPTION

No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE

5

27

TONE-La

TONE-Lb

Bass(tone control) filter terminal

V+/2

8 AGC1

Capacitor connection terminal for

AGC attack and recovery time setting

1.4V

9 AUX0

Auxiliary 3 values voltage output terminal

0V, 2.5V,

5.0V

10 AUX1

Auxiliary 2 values voltage output terminal

(Open collector type output)

0V

3.5 to V+

11

12

13

PORT0

PORT1

ADR

Logic input terminal

Slave address setting terminal

(Don’t apply over 5V to these terminals)

-

12k

5, 27pin

FB

12k

400

12k

8pin

9pin

FB

1k

12k

10pin

560

5V

11, 12, 13pin

NJW1136

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TERMINAL DESCRIPTION

No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE

14 SDA I

2

C data terminal

-

15 SCL I

2

C clock terminal

-

16

17

GND

V+

Ground terminal

Supply voltage terminal

- V+/2

18 Vref Reference voltage terminal

V+/2

19 CSR

DAC output for surround control terminal

0V

8k

14pin

4k

8k

15pin

4k

200k

18pin

200k

19pin

32k