JRC NJW1132L, NJW1132M Datasheet

NJW1132

PRELIMINARY

SOUND PROCESSOR with SOUND ENHANCEMENT

GENERAL DESCRIPTION

nnnn

NJW1132

The

is a sound processor with sound
enhancement (BBE). It includes all of functions processing
audio signal for TV, such as tone control, bal ance, volume,
mute, and AGC functions.

Also the

NJW1132

performs surround and sound
enhancement. The sound enhancement regenerates high
definitive and nearly real sound.

All of internal status and variables are controlled by I

2

C BUS

interface.

FEATURES

nnnn

l

l Operating Voltage (8 to 13V)

ll

2

l

lI

C BUS Interface

ll
l

lBBE Sound Enhancem ent (Low Boost and High Boost: 15dB max. )

ll
l

l The AGC circuit reduces volume difference among input sources.

ll
l

l Matrix Surround

ll
l

l Bi-CMOS Technology

ll
l

l Package Outline SDIP30,SDMP30

ll

BLOCK DIAGRAM

nnnn

PACKAGE OUTLINE

nnnn

NJW1132M

NJW1132L

INPUT

INPUT

AGC

Volume

1

Volume

1

BBE

BBE

Tone

Tone

Surround

Volume

2

Volume

2

OUTPUT

OUTPUT

Control

Logic

Bias

Vref

AUX0
AUX1

SDA
SCL

GND
VCC

- 1 -

NJW1132

y

y

PIN FUNCTION

nnnn

Ach Input

Ach BBE Filter1

Ach BBE Filter2

Ach BBE Output

Ach Tone Input

Ach High Frequenc

Ach Low Frequenc

Ach Output (0dB)

AGC1

AGC2

DAC Output

for Bch Volume & Balance

INa

1 30

BBE1a

2

BBE2a

3

BBEout_a

4

5

6

7

8

9

10

11

Tone_INa

TONE-Ha

TONE-La

OUTa

AGC1

AGC2

CVB

BBEout_b

INb

BBE1b

BBE2b

Tone_INb

TONE-Hb

TONE-Lb

OUTb

PS

VREF

CTH

Bch Input

Bch BBE Filter1

29

Bch BBE Filter2

28

Bch BBE Output

27

Bch Tone Input

26

Bch High Frequency

25

Bch Low Frequency

24

Bch Output(0dB)

23

Phase Shift

22

Reference Voltage

21

DAC Output

20

for Tone High Frequency

DAC Output

for Ach Volume & Balance

2

I

C BUS SDA

2

I

C BUS SCL

GND

12

13

14

15

CVA

SDA

SCL

GND

SDIP30, SDMP30

CTL

AUX0

AUX1

Vcc

DAC Output

19

for Tone Low Frequency
AUX Output0

18

AUX Output1

17

Power Supply

16

- 2 -

ABSOLUTE MAXIMUM RATING (Ta=25°C)

nnnn

PARAMETER SYMBOL RATING UNIT
Supply Voltage V
Power Dissipation P

+

700 mW

D

14 V

Operating Temperature Range Topr -20 to +75 °C
Storage Temperature Range Tstg -40 to +125 °C

NJW1132

ELECTRICAL CHARACTERISTICS ( Ta=25°C, V+=9V, Rg=600

nnnn

PARAMETER

SYM

BOL

TEST CONDITION MIN. TYP. MAX. UNIT

=47k

, R

WWWW

L

, Vin=100mVrms/1kHz)

WWWW

Operating Voltage V+ 8.0 9.0 13.0 V
Supply Current I
Reference Voltage V

CC

REF

Maximum Input Voltage V
Maximum Output Voltage V

OM1

Channel Balance G
Balance Boost A BA
Balance Cut A BA
Balance Boost B BB
Balance Cut B BB

Total Harmonic Distortion THD

No Signal - 30 50 mA
No Signal 4.0 4.5 5.0 V
VOL=C3H,THD=1% 2.6 2.8 - Vrms

IM

OUTPUT
VOL=FFH,THD=1%

VOL=FFH -1.5 0.0 1.5 dB

CB

BAL=”00000” -2.0 0.0 2.0 dB

BST

BAL=”11111” - - -70 dB

CUT

BAL=”00000” -2.0 0.0 2.0 dB

BST

BAL=”11111” - - -70 dB

CUT

Vo=0.5Vrms
BW=400Hz to 30kHz

-2.5-Vrms

--0.5%

Mute Level MUTE VOL=00H - - -70 dB
Channel Separation CS Vin=2Vrms - - -70 dB

Output Noise 1 V

Output Noise 2 V

NO1

NO2

VOL=FFH
BW=400Hz to 30kHz
VOL=00H
BW=400Hz to 30kHz

-

-

-

-

-

-

-90

(31.6)

-60

(1.0)

-82

(79.4)

(mVrms)

(uVrms)

dBV

dBV

- 3 -