JRC NJW1136 User Manual

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AUDIO PROCESSOR with Subwoofer Output

■■■■ 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 BUS interface.

■■■■ 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

●●●● eala(NJRC Original Surround System)

●●●● Simulated Stereo

2

●●●● I

C BUS Interface

●●●● Bi-CMOS Technology

●●●● Package Outline SOP32, DIP32

■■■■ BLOCK DIAGRAM

AGC1

SS-FIL

TONE

-Ha

2

C

TONE

LF1 LF2 LF3 OUTa

-La

NJW1136D

2

C BUS

NJW1136

PRELIMINAR

NJW1136LNJW1136GL1

SCL SDA ADR

IN a

IN b

TONE VOL2

LPF

VOL2

I2CBUS

Int erf ace

Trimmer

AGC

VOL1

eal a

&

Simul ated

St ereo

VOL1

TONE

VOL2

Bia s

CVA CVB CVW CTH CTL CSR

PORT1 PORT0 AUX1 AUX0

GND

V+

AGC2

SR-FIL TONE

-Hb

TONE

-Lb

OUTb OUTw

Vref

(1/24) G

NJW1136

(

A

f

■■■■PIN CONFIGURATION

INa

SR-FIL

INb

LF1

SS-FIL

LF2

TONE-Ha

LF3

TONE-La

TONE-Hb

OUTW

TONE-Lb

OUTa

OUTb

GC1

GC2

UX0

UX1

PORT0

PORT1

DR

CV

CVB

CVW

CTH

CTL

SD

SCL

GND

CSR

Vre

V+

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

Auxiliary 3 values voltage output terminal

9 AUX0

10 AUX1

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 I2C data terminal 30 LF2 LPF filter2 terminal

15 SCL I2C cock terminal 31 LF1 LPF filter1 terminal

16 GND Ground terminal 32 INb Bch input terminal

(✳)

(0.0V, 2.5V, 5V) Auxiliary 2 values voltage output terminal

(0.0V, V+)

25 AGC2 AGC boost level setting terminal

26 OUTb Bch output terminal

(✳)

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

2/24)

(3/24)

NJW1136

■■■■ ABSOLUTE MAXIMUM RATING (Ta=25°C)

PARAMETER SYMBOL RATING UNIT

Supply Voltage V+ 15 V

Power Dissipation PD 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

PARAMETER SYMBOL

Operating Voltage V+ - - - 8.0 9.0 13.0 V

Supply Current1 I Supply Current2 I

Reference Voltage V

Maximum Input Voltage1 V

Maximum Input Voltage2 V

Output Voltage1

Output Voltage2

Channel Balance GCB VOL=0dB - - - -1.5 0.0 1.5 dB Balance Boost A BA

Balance Cut A BA

Balance Boost B BB

Balance Cut B BB

Trimmer Boost TR

Trimmer Cut TR

Total Harmonic Distortion THD

Maximum Gain G

Minimum Gain G

Channel Separation CS

Output Noise 1 V

Output Noise 2 V

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

L

Condition

No Signal - - -

CC1

No Signal, V+=12V - - -

CC2

No Signal - - - 4.0 4.5 5.0 V

REF

VOL=-20dB,THD=1%

IM1

VOL=-20dB,THD=1%

IM2

V

OM1

V

OM2

V+=12V

VOL=0dB, THD=1%

VOL=0dB, THD=1% V+=12V

CH S = ”0”,BA L = ” 111111” Vin Vin OUTa -2.0 0.0 2.0 dB

BST

CH S = ”1”, BA L = ” 111111”

CUT

Vin = 1Vrms

CH S = ”1”,BA L = ” 111111” Vin Vin OUTb -2.0 0.0 2.0 dB

BST

CH S = ”0”, BA L = ” 111111”

CUT

Vin = 1Vrms VOL=0dB

BST

TRIM = +18dB VOL=0dB

CUT

TRIM = -44dB Vo=0.5Vrms, BW=400Hz to 30kHz

VOL=0dB

VMAX

VOL=MUTE

VMIN

Vin=1Vrms

Vin=1Vrms BW=400Hz to 30kHz

VOL=0dB

NO1

NO2

BW=400Hz to 30kHz

VOL=MUTE BW=400Hz to 30kHz

Input

INa INb

Output

Vin - OUTa

- V

OUTb

in

Vin - OUTa

- V

OUTb

in

Vin - OUTaMaximum

- V

OUTb

in

Vin - OUTaMaximum

- V

V

Vin OUTa - - -70 dB

in

V

Vin OUTb - - -70 dB

in

V

Vin OUTw 16.0 18.0 20.0 dB

in

V

Vin OUTw -49.0 -44.0 -39.0 dB

in

OUTb

in

Vin - OUTa

- V

OUTb

in

Vin - OUTa

- V

OUTb

in

Vin - OUTa

- V

OUTb

in

Vin - OUTb

- V

OUTa

in

- - - -

MIN. TYP. MAX. UNIT

- 13 25 mA

2.8 3.0 - Vrms

- 4.0 - Vrms

- 2.5 - Vrms

- 3.5 - Vrms

- - 0.5 %

-2.0 0.0 2.0 dB

- - -70 dB

-90

(31.6)

-106 (5.0)

-85

(56.2)

-96

(15.8)

dBV

(µVrms )

dBV

(µVrms )

BW : Band Width

NJW1136

(

■■■■

ELECTRICAL CHARACTERISTICS

(Ta=25°C, V+=9V, Rg=600Ω, R

PARAMETER SYMBOL

♦♦♦♦TONE

High Frequency Boost HF

High Frequency Flat HF

High Frequency Cut HF

Low Frequency Boost LF

Low Frequency Flat LF

Low Frequency Cut LF

◆AGC

AGC Boost AGC

AGC Flat1 AGC

AGC Flat2 AGC

AGC Flat3 AGC

AGC Flat4 AGC

AGC Cut AGC

◆SURROUND

Surround Gain1 SR

Surround Gain2 SR

Surround Gain3 SR

Surround Gain4 SR

Simulated Stereo1 SR Simulated Stereo2 SR

◆PORT, AUX

PORT0,1 Input Voltage V

AUX0 Output Voltage V

AUX1 Output Voltage V

ADR Input Voltage V

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

L

Condition

BCT=”1”

BST

TREB=+15dB, f=10kHz

TREB=0, f=10kHz

FLT

BCT=”0”

CUT

TREB=-15dB, f=10kHz

BCB=”1”

BST

BASS=+15dB, f=100Hz

BASS=0, f=100Hz

FLT

BCB=”0”

CUT

BASS=-15dB, f=100Hz

Vin=50mVrms, f=1kHz

BST

AGC=”1”

Vin=100mVrms,f=1kHz

FLT1

AGC=”1”, AGCL=”00”

Vin=200mVrms, f=1kHz

FLT2

AGC=”1”, AGCL=”01”

Vin=300mVrms, f=1kHz

FLT3

AGC=”1”, AGCL=”10”

Vin=400mVrms, f=1kHz

FLT4

AGC=”1”, AGCL=”11”

Vin=2Vrms, f=1kHz

CUT

AGC=”1”

GAIN1

GAIN2

GAIN3

GAIN 4

PTIN

f=100Hz Surround Effect1

f=100 Hz Surround Effect2

f=100Hz Surround Effect2

f=1kHz, Simulated Stereo

SIM1

f=1kHz, Simulated Stereo

SIM2

Input : High 3.5 - Input : Low

Input

INa INb

Output

Vin - OUTa

- V

OUTb

in

Vin - OUTa

- V

OUTb

in

Vin - OUTa

- V

OUTb

in

Vin - OUTa

- V

OUTb

in

Vin - OUTa

- V

OUTb

in

Vin - OUTa

- V

V

in

V

in

V

in

V

in

V

in

V

in

V

in

V

in

V

in

V

in

V

in

V

in

OUTb

in

OUTa

V

in

OUTb

V

in

OUTa

V

in

OUTb

V

in

OUTa

V

in

OUTb

V

in

OUTa

V

in

OUTb

V

in

OUTa

V

in

OUTb

V

in

OUTa

V

in

OUTb

Vin - OUTa

- V

OUTb

in

Vin - OUTb

- V

OUTa

in

Vin - OUTa

- V

OUTb

in

Vin - OUTb

- V

V

in

V

in

OUTa

in

Vin Vin

OUTa 1.0 3.0 5.0

OUTb 1.0 3.0 5.0

- - -

Logic Output : High 4.5 - 5.5

AUX0

Logic Output : Mid 2.0 - 3.0

- - -

Logic Output : Low Logic Output : High 3.5 - V+

AUX1

ADR

Logic Output : Low Input : High 3.5 - -

Input : Low

- - -

MIN. TYP. MAX. UNIT

12.5 15.0 17.5 dB

-2.0 0.0 2.0 dB

-17.5 -15.0 -12.5 dB

12.5 15.0 17.5 dB

-2.0 0.0 2.0 dB

-17.5 -15.0 -12.5 dB

1.5 3.5 5.5 dB

-2.5 0.0 2.5 dB

-14 -10 -6.0 dB

6.3 8.3 10.3

2.1 4.1 6.1

10.7 12.7 14.7

8.4 10.4 12.4

dB

dB dB

- - 1.0

V

0 - 0.5

- - 1.0

V

4/24)

(5/24)

P

S

P

NJW1136

■■■■ I2C BUS BLOCK CHARACTERISTICS (SDA,SCL)

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

High Level Input Voltage VIH 3.0 - 5.0 V

Low Level Input Voltage VIL 0 - 1.5 V

High Level Input Current IIH - - 10 µA

Low Level Input Current IIL - - 10 µA

Low Level Output Voltage (3mA at SDA pin) VOL 0 - 0.4 V

Maximum Output Current IOL -3.0 - - mA

Maximum Clock Frequency f

Data Change Minimum Waiting Time t

Data Transfer Start Minimum Waiting Time t

Low Level Clock Pulse Width t

High Level Clock Pulse Width T

Minimum Start Preparation Waiting Time t

Minimum Data Hold Time t

Minimum Data Preparation Time t

0 - 100 kHz

SCL

4.7 - - µs

BUF

4.0 - - µs

HD:STA

4.7 - - µs

LOW

4.0 - - µs

HIGH

4.7 - - µs

SU:STA

5.0 - - µs

HD:DAT

250 - - ns

SU:DAT

Rise Time tR - - 1.0 µs

Fall Time tF - - 300 ns

Minimum Stop Preparation Waiting Time t

2

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

I

4.7 - - µs

SU:STO

Load capacitance 200pF (Connected to GND)

SDA

SCL

t

LOW

tR

t

HD:DA

t

BU

t

HD:ST

t

HIGH

tF

t

HD:ST

t

SU:DA

SU:ST

t

SU:ST

Sr

NJW1136

(

TERMINAL DESCRIPTION

No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE

V+

1

32

6 7

26

INa INb

OUTw

OUTa

OUTb

Ach input terminal Bch input terminal

Subwoofer output terminal

Ach output terminal Bch output terminal

2 SRFIL Surround filter terminal

1,32 pin

FB

20k

80k

Vref

100

1.8k

V+/2

6, 7, 26pin

V+/2

2pin

V+/2

3 SSFIL Simulated stereo filter terminal

4

28

TONE-Ha TONE-Hb

Treble(tone control) filter terminal

FB

5.3k

18k

3pin

V+/2

4, 28pin

V+/2

6/24)

(7/24)

NJW1136

TERMINAL DESCRIPTION

No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE

5

TONE-La

27

TONE-Lb

8 AGC1

9 AUX0

Bass(tone control) filter terminal

Capacitor connection terminal for

AGC attack and recovery time setting

Auxiliary 3 values voltage output terminal

12k

FB

400

12k

1.4V

400

5, 27pin

V+/2

8pin

1k

9pin

FB

0V, 2.5V,

5.0V

10 AUX1

11 12 13

PORT0 PORT1

ADR

Auxiliary 2 values voltage output terminal

(Open collector type output)

Logic input terminal Logic input terminal

Slave address setting terminal

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

12k

11, 12, 13pin

10pin

0V

3.5 to V+

5V

560

-

NJW1136

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TERMINAL DESCRIPTION

No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE

14 SDA I2C data terminal

15 SCL I2C clock terminal

16 17

GND

V+

Ground terminal

Supply voltage terminal

15pin

14pin

4k

-

8k

4k

-

8k

- V+/2

18 Vref Reference voltage terminal

19 CSR

DAC output for surround control terminal

18pin

19pin

200k

V+/2

200k

0V

32k

8/24)