njw1167 New Japan Radio Co.,Ltd, njw1167 Datasheet

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njw1167

Manufacturer Part Number
njw1167
Description
Audio Processor With Subwoofer Output
Manufacturer
New Japan Radio Co.,Ltd
Datasheet

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IN a
IN b
output includes all of functions processing audio signal for
TV, such as tone control, balance, volume, mute, and AGC
functions.
output and bass boost function.
sound and clear vocal orientation.
BUS interface.
GENERAL DESCRIPTION
The original surround system reproduces natural surround
FEATURES
BLOCK DIAGRAM
The NJW1167/A is a sound processor with subwoofer
Also the NJW1167/A includes the LPF for subwoofer
All of internal status and variables are controlled by I
Adjustable AGC boost level by external parts and AGC compression level by I
AGC Circuit (It reduces volume difference among input sources.)
Operating Voltage
3ch Output(Lch, Rch, Subwoofer ch) / 2ch Output(Lch, Rch)
LPF Filter (Adjustable cut off frequency by external parts)
eala(NJRC Original Surround System)
Simulated Stereo
I
Bi-CMOS Technology
Package Outline
2
C BUS Interface
AGC
AGC1
AGC2
AUDIO PROCESSOR with Subwoofer Output
VOL1
VOL1
7.5 to 13V
NJW1167: SSOP32, QFP32-J2
NJW1167A: SDIP32
SS-FIL
SR-FIL
Simulated
Stereo
eal a
&
TONE
TONE
-Ha
-Hb
TONE
TONE
TONE
TONE
-La
-Lb
LF1 LF2 LF3
2
C
LPF
PACKAGE OUTLINE
VOL2
VOL2
VOL2
NJW1167FJ2
OUTa
OUTb
NJW1167V
Trimmer
2
C BUS
OUTw
NJW1167/A
NJW1167AL
SCL SDA ADR
Interface
I
2
Bias
Vref
CBUS
-1-
CVA
CVB
CVW
CTH
CTL
CSR
PORT1
PORT0
AUX1
AUX0
GND
V+

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njw1167 Summary of contents

Page 1

... AUDIO PROCESSOR with Subwoofer Output GENERAL DESCRIPTION The NJW1167 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 NJW1167/A includes the LPF for subwoofer output and bass boost function. ...

Page 2

... NJW1167/A PIN CONFIGURATION SSOP32, SDIP32 No. Symbol 1 INa Ach input terminal 2 SR-FIL Surround filter terminal 3 SS-FIL Simulated stereo filter terminal 4 TONE-Ha Ach tone control (treble) filter terminal 5 TONE-La Ach tone control (bass) filter terminal 6 OUTw Subwoofer output terminal 7 OUTa Ach output terminal ...

Page 3

... TONE- SR-FIL 31 SS-FIL 32 TONE- The AUX0 terminal should be connected via the protection resistance to 5V device. NJW1167/A 17 CTL 16 CSR Vref V+ GND SCL SDA 9 ADR 8 Function DAC output terminal for tone control (treble) Bch DAC output terminal for LPF trimmer ...

Page 4

... NJW1167/A ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range ELECTRICAL CHARACTERISTICS ( Ta=25°C, V+=9V, Rg=600 , R =47k , Vin=100mVrms/1kHz unless otherwise specified) L PARAMETER SYMBOL Operating Voltage V Supply Current I CC Reference Voltage V REF Maximum Input Voltage V Maximum V OM Output Voltage ...

Page 5

... V V f=1kHz, Simulated Stereo f=1kHz, Simulated Stereo in Input : High - Input : Low Logic Output : High - Logic Output : Mid Logic Output : Low Logic Output : High - Logic Output : Low Input : High - Input : Low NJW1167/A MIN. TYP. MAX. Output - OUTa 12.5 15.0 17.5 OUTb in - OUTa -2.0 0.0 2.0 OUTb in - OUTa -17 ...

Page 6

... NJW1167/A 2 !TIMING ON THE I C BUS (SDA,SCL) SDA SCL t HD: LOW HD:DAT S !CHARACTERISTICS OF I/O STAGES FOR BUS Load Conditions STANDARD MODE : PARAMETER Low Level Input Voltage High Level Input Voltage Low level output voltage (3mA at SDA pin) Input current each I/O pin with an input voltage between 0 ...

Page 7

... Please hold the Data Hold Time (t HD:DAT The SDA block in the NJW1167/A 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. ...

Page 8

... NJW1167/A ! TERMINAL DESCRIPTION No. SYMBOL SOP QFP SDIP 1 29 INa 32 28 INb 6 2 OUTw Subwoofer output terminal 7 3 OUTa 26 22 OUTb 2 30 SRFIL 3 31 SSFIL Simulated stereo filter terminal 4 32 TONE-Ha Treble(tone control) filter 28 24 TONE-Hb -8- FUNCTION Ach input terminal Bch input terminal ...

Page 9

... PORT0 7 12 PORT1 8 13 ADR 9 Slave address setting terminal (Don’t apply over 5V to these terminals) FUNCTION Logic input terminal 11, 12, 13pin Logic input terminal NJW1167/A EQUIVALENT CIRCUIT 12k 5, 27pin 12k FB 8pin 4k 400 400 1k 9pin FB 10pin 12k 5V ...

Page 10

... NJW1167/A ! TERMINAL DESCRIPTION No. SYMBOL SOP QFP SDIP 14 10 SDA 15 11 SCL 16 12 GND Vref Reference voltage terminal 19 15 CSR DAC output for surround control terminal -10- FUNCTION data terminal clock terminal Ground terminal Supply voltage terminal 19pin EQUIVALENT CIRCUIT ...

Page 11

... CVA Resistance connection terminal for AGC 25 21 AGC2 30 26 LF3 31 27 LF2 29 25 LF1 FUNCTION 20, 21pin 22, 23, control 24pin control 25pin boost level setting LPF filter terminal 29pin LPF filter terminal NJW1167/A EQUIVALENT CIRCUIT 36k 8k 4k 30,31pin 24k VOLTAGE V+/2 V+/2 0V V+/2+0.7V V+/2 -11- ...

Page 12

... NJW1167/A MEASUREMENT CIRCUIT 0.47µ Input Ach 100n Vin 100n 2.2n 100n Output Wch 4.7µ Output Ach 4.7µ 1µ 47k 47k AUX0 AUX1 ( PORT0 V PTIN0 PORT1 V PTIN1 ADR V ADRIN SDA ( 3) SCL ( 1) V AUX0 Output High Output Low ( 2) V AUX1 Output Low ( ...

Page 13

... SCL Vref 15 GND Slave Address Read mode Write mode 80h 81h 82h 83h Symbol Pin No. Symbol TONE-Lb 31 LF2 TONE-Hb LF1 LF3 NJW1167/A 0.47µ 0.047µ 30 0.022µ 0.033µ 2.2n 27 100n 26 4.7µ 25 100k 24 4.7µ 4.7µ 4.7µ 21 4.7µ ...

Page 14

... GmAmp2 LF2 The NJW1167 includes the LPF for subwoofer output and bass boost function. The LPF consists of primary and secondary LPF and it is enable to adjust “cut off frequency”, “Q” and “Roll off”. The expression of LPF characteristics is as follows. ...

Page 15

... BASS TREB AUX1 AUX0 BIT Remarks BIT NJW1167/A MSB LSB Data A 8bit 1bit D2 D1 AGCL : Don’t Care PORT1 PORT0 ...

Page 16

... NJW1167/A !INSTRUCTION CODE a) MASTER VOLUME SETTING Select Address D7 D6 00H VOL Attenuation level : 0 to –80dB(0.33dB/step) , MUTE The attenuator is consisted of both the VOL1(0.165dB/step)and VOL2(0.165dB/step) and is enable to adjust 0.33dB/step. The attenuation for both the VOL1and VOL2 are always synchronized to have the same attenuation levels for each other, and are not controllable independently for each other ...

Page 17

... OFF ON BIT AUX1 AUX0 Surround Effect Low(6.7dB typ Surround Effect High(12.7dB typ NJW1167 AGCL AGC Remarks Surround Off Simulated Stereo -17- ...

Page 18

... NJW1167/A Master Volume (Select Address : 00H) Gain(dB) HEX - - - - - - - - - - - -21 C0 ...

Page 19

... NJW1167 ...

Page 20

... NJW1167/A Balance, Bass Boost Setting (Select Address : 01H) Channel Setting (CHS) Decrease Bch Gain Decrease Ach Gain Gain(dB -10 0 -11 0 -12 0 -13 0 -14 0 -15 0 -16 0 -17 0 -18 0 -19 0 -20 0 -21 0 -22 ...

Page 21

... Default Value NJW1167 -21- ...

Page 22

... NJW1167/A Trimmer Setting (Select Address: 02H) Gain(dB) D7 +18.0 1 +17.5 1 +17.0 1 +16.5 1 +16.0 1 +15.5 1 +15.0 1 +14.5 1 +14.0 1 +13.5 1 +13.0 1 +12.5 1 +12.0 1 +11.5 1 +11.0 1 +10.5 1 +10.0 1 +9.5 1 +9.0 1 +8.5 1 +8.0 1 +7.5 1 +7.0 1 +6.5 1 +6.0 1 +5.5 1 +5.0 1 +4.5 1 +4.0 1 +3.5 1 +3.0 1 +2.5 1 +2.0 1 +1.5 1 +1.0 1 +0.5 1 0.0 1 -0.5 1 -1.0 1 -1.5 1 -2.0 1 -2.5 1 -3.0 1 -3.5 1 -4.0 1 -4.5 1 -5.0 1 -5.5 1 -6.0 1 -22- TRIM ...

Page 23

... NJW1167 ...

Page 24

... NJW1167/A (d (dB) ) ) ) (d Gain(d D7 -31.5 0 -32.0 0 -32.5 0 -33.0 0 -33.5 0 -34.0 0 -34.5 0 -35.0 0 -35.5 0 -36.0 0 -36.5 0 -37.0 0 -37.5 0 -38.0 0 -38.5 0 -39.0 0 -39.5 0 -40.0 0 -40.5 0 -41.0 0 -41.5 0 -42.0 0 -42.5 0 -43.0 0 -43.5 0 -44.0 0 MUTE 0 -24- TRIM ...

Page 25

... NJW1167 ...

Page 26

... NJW1167/A Tone Control(Treble Setting) (Select Address : 04H) Treble Cut or Boost Cut Boost Cut Gain(dB) Boost Gain(dB) -15.0 15.0 -14.5 14.5 -14.0 14.0 -13.5 13.5 -13.0 13.0 -12.5 12.5 -12.0 12.0 -11.5 11.5 -11.0 11.0 -10.5 10.5 -10.0 10.0 -9.5 9.5 -9.0 9.0 -8.5 8.5 -8.0 8.0 -7.5 7.5 -7.0 7.0 -6.5 6.5 -6.0 6.0 -5.5 5.5 -5.0 5.0 -4.5 4.5 -4.0 4.0 -3.5 3.5 -3.0 3.0 -2.5 2.5 -2.0 2.0 -1.5 1.5 -1.0 1.0 -0.5 0.5 0.0 0.0 -26- BCT ...

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