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NJW1173
AUDIO PROCESSOR
s GENERAL DESCRIPTION The NJW1173 is an audio processor which includes volume, balance, tone control, surround, simulated stereo and AGC function. Also the NJW1173 features high precision characteristics about channel balance, it is less than 1.0dB at -70dB attenuation. 2 All of internal status and variables are controlled by I C BUS. It is suitable for any TV set. s PACKAGE OUTLINE
NJW1173V s FEATURES q Operating Voltage 8 to 13V 2 q I C BUS Interface (Fast mode applicable, 3V I/F applicable) q Low Output Noise 2 q AGC Circuit (Selectable 4-stage compression level via I C BUS) q "eala" (NJRC Surround) q Simulated Surround q Bi-CMOS Technology q Package Outline SSOP20
s BLOCK DIAGRAM
AGC
SRFIL
TONE TONE -Ha -La
OUTa CVO CBA CTH CTL
I2C Bus Interface
INa
VOL1
TONE
VOL2
CSR
AGC
eala & Sim ulate Stereo
SCL INb
VOL1 TONE VOL2 Bias
SDA V+ GND
TONE TONE -Hb -Lb
OUTb
Vref
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NJW1173
s PIN CONFIGURATION
Ach Input Ach Output Ach Treble Filter Ach Bass Filter AGC Filter Pop Noise Reduction for Surround ON/OFF Control Pop Noise Reduction for Volume Control SDA Serial Data Input (I C BUS) SCL Serial Clock Input (I C BUS) Ground
2 2
1 2 3 4 5 6 7 8 9 10
IN1a OUTa TONE-Ha TONE-La AGC CSR CVO SDA SCL GND
IN1b 20 OUTb 19 TONE-Hb 18 TONE-Lb 17 SR FIL 16 CBA 15 CTL 14 CTH 13 Vref 12 V+ 11
Bch Input Bch Output Bch Treble Filter Bch Bass Filter Surround Filter Pop Noise Reduction for Balance Control Pop Noise Reduction for BASS Control Pop Noise Reduction for Treble Control Reference Voltage Power Supply
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NJW1173
s ABSOLUTE MAXIMUM RATING (Ta=25C)
PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL V
+
RATING 15 350 -20 to +75 -40 to +125
UNIT V mW C C
PD Topr Tstg
s ELECTRICAL CHARACTERISTICS (Ta=25C, V+=9V, Rg=600, RL=47k, Vin=100mVrms/1kHz,
AGC=OFF, TONE=0dB, Surround=OFF unless otherwise specified) PARAMETER Operating Voltage Supply Current Reference Voltage Maximum Input Voltage Maximum Output Voltage Channel Balance 1 Channel Balance 2 Balance Boost A Balance Cut A Balance Boost B Balance Cut B Total Harmonic Distortion Maximum Gain Minimum Gain Channel Separation Output Noise 1 Output Noise 2 SYMBOL V
+
TEST CONDITION
MIN. 8.0
TYP. 9.0 13 4.5 3.0 2.5 0.0 0.0 0.0 0.0 0.0 -100 -80 -90 (31.6) -106 (5.0)
MAX. 13.0 25 5.0 1.0 1.0 2.0 -70 2.0 -70 0.3 2.0 -90 -70 -85 (56.2) -96 (15.8)
UNIT V mA V Vrms Vrms dB dB dB dB dB dB % dB dB dB dBV (Vrms) dBV (Vrms)
ICC VREF VIM VOM GCB1 GCB2 BABST BACUT BBBST BBCUT THD GVMAX GVMIN CS VNO1 VNO2
No Signal No Signal VOL=-20dB,THD=10% OUTPUT VOL=0dB,THD=1% VOL=0dB VOL=-70dB, Vin=1Vrms CHS="0", BAL="11111" CHS="1", BAL="11111" Vin = 1Vrms CHS="1", BAL="11111" CHS="0", BAL="11111" Vin = 1Vrms Vo=0.5Vrms BW=400Hz to 30kHz VOL= 0dB VOL= MUTE, Vin=2Vrms Vin = 1Vrms A-weighting VOL = 0dB A-weighting VOL = MUTE A-weighting
4.0 2.8 -1.0 -1.0 -2.0 -2.0 -2.0 -
BW: Band Width
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NJW1173
s ELECTRICAL CHARACTERISTICS (Ta=25C, V+=9V, Rg=600, RL=47k, Vin=100mVrms/1kHz, TONE CONTROL
PARAMETER High Frequency Boost High Frequency Flat High Frequency Cut Low Frequency Boost Low Frequency Flat Low Frequency Cut SYMBOL HFBST HFFLT HFCUT LFBST LFFLT LFCUT AGC=OFF, TONE=0dB, Surround=OFF unless otherwise specified) TEST CONDITION BCT="1", TREB="1111", f=10kHz TREB="0000", f=10kHz BCT="0", TREB="1111", f=10kHz BCB="1", BASS="1111", f=100Hz BASS="0000", f=100Hz BCB="0", BASS="1111", f=100Hz MIN. 12.5 -2.0 -17.5 12.5 -2.0 -17.5 TYP. 15.0 0.0 -15.0 15.0 0.0 -15.0 MAX. 17.5 2.0 -12.5 17.5 2.0 -12.5 UNIT dB dB dB dB dB dB
AGC CONTROL (AGC-ON)
PARAMETER AGC Boost AGC Flat1 AGC Flat2 AGC Flat3 AGC Flat4 SYMBOL AGCBST AGCFLT1 AGCFLT2 AGCFLT3 AGCFLT4 TEST CONDITION Vin=50mVrms, f=1kHz Vin=100mVrms, f=1kHz Vin=200mVrms, f=1kHz Vin=300mVrms, f=1kHz Vin=400mVrms, f=1kHz MIN. 1.5 -2.5 -2.5 -2.5 -2.5 TYP. 3.5 0.0 0.0 0.0 0.0 MAX. 5.5 2.5 2.5 2.5 2.5 UNIT dB dB dB dB dB
SURROUND (SURROUND-ON)
PARAMETER Surround Gain1 Surround Gain2 Surround Gain3 Surround Gain4 Simulated Surround Gain1 Simulated Surround Gain2 SYMBOL SRGAIN1 SRGAIN2 SRGAIN3 SRGAIN 4 SRSIM1 SRSIM2 TEST CONDITION AinAout, f=100Hz SUR0="1", SUR="1" AinBout, f=100Hz SUR0="1", SUR="1" AinAout, f=100Hz SUR0="0", SUR="1" AinBout, f=100Hz SUR0="0", SUR="1" Ain+BinAout, f=1kHz SUR0="1", SUR="0" Ain+BinBout, f=1kHz SUR0="1", SUR="0" MIN. 6.0 1.6 10.0 7.5 1.0 1.0 TYP. 8.0 3.6 12.0 9.5 3.0 3.0 MAX. 10.0 5.6 14.0 11.5 5.0 5.0 UNIT dB dB dB dB dB dB
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NJW1173
s I C BUS CHARACTERISTICS
2
2
(SDA, SCL) SYMBOL
VIL VIH Vhys VOL tof tSP Ii Ci fSCL tHD:STA tLOW tHIGH tSU:STA tHD:DAT tSU:DAT tr tf tSU:STO tBUF Cb VnL
I C BUS Load Conditions: Pull up resistance 4k (Connected to +5V), Load capacitance 200pF (Connected to GND)
PARAMETER
Low Level Input Voltage High Level Input Voltage Hysteresis of Schmitt trigger inputs Low level output voltage (3mA at SDA pin) Output fall time from VIHmin to VILmax with a bus capacitance from 10pF to 400pF Pulse width of spikes which must be suppressed by the input filter Input current each I/O pin with an input voltage between 0.1VDD and 0.9VDDmax Capacitance for each I/O pin SCL clock frequency Hold time (repeated) START condition. Low period of the SCL clock High period of the SCL clock Set-up time for a repeated START condition Data hold time Data set-up time Rise time of both SDA and SCL signals Fall time of both SDA and SCL signals Set-up time for STOP condition Bus free time between a STOP and START condition Capacitive load for each bus line Noise margin at the Low level Noise margin at the High level
Standard mode
MIN. 0.0 2.7 0 -10 4.0 4.7 4.0 4.7 0 250 4.0 4.7 0.5 1 TYP. MAX. 1.5 5.0 0.4 250 10 10 100 3.45 1000 300 400 MIN. 0.0 2.7 0.25 0
Fast mode
TYP. MAX. 1.5 5.0 0.4 250 50 10 10 400 0.9 300 300 400 -
UNIT
V V V V ns ns A pF kHz s s s s s ns ns ns s s pF V
20 +0.1Cb
0 -10 0.6 1.3 0.6 0.6 0 100 0.6 1.3 0.5 1
VnH
V
Cb ; total capacitance of one bus line in pF.
SDA
tf
tr
tSU:DAT
tf
tHD:STA
tSP
tr
tBUF
SCL
tHD:STA S tLOW tHD:DAT tHIGH
tSU:STA Sr
tSU:STO P S
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NJW1173
TERMINAL DESCRIPTION No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
1 20
INa INb
Ach Input terminal Bch Input terminal
100k REF
V /2
+
2 19
OUTa OUTb
Ach Output terminal Bch Output terminal
FB 50
V /2
+
32k
3 18
TONE-Ha TONE-Hb
Ach Treble Filter terminal Bch Treble Filter terminal
32k
V /2
+
12k
4 17
TONE-La TONE-Lb
Ach Bass Filter terminal Bch Bass Filter terminal
FB 12k
V /2
+
5
AGC
Capacitor connection terminal for AGC attack and recovery time setting
12k 400 400
1.4V
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NJW1173
TERMINAL DESCRIPTION No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
6
CSR
Pop Noise Reduction for Surround ON/OFF Control
32k
V /2
+
7
CVO
Pop Noise Reduction for Volume Control
8k
V /2
+
4k
8 9
SDA SCL
SDA Serial Data Input (I C BUS) SDA Serial Clock Input (I C BUS)
2
2
12k
10
GND
Ground terminal
-
-
11
V+
Power Supply terminal
-
-
12
Vref
Reference Voltage
FB
-
-7-
NJW1173
TERMINAL DESCRIPTION No. SYMBOL FUNCTION EQUIVALENT CIRCUIT VOLTAGE
13 14 15
CTH CTL CBA
Pop Noise Reduction for Treble Control Pop Noise Reduction for Bass Control Pop Noise Reduction for Balance Control V /2
+
36k
12k
+
16
SRFIL
Surround filter terminal
FB
4k
V /2
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NJW1173
s APPLICATION CIRCUIT
0.1F +
1 2
INa OUTa TONE-Ha TONE-La AGC CVO CSR SDA SCL GND
INb
20
0.1F +
OUTb 19
2.2nF
2.2nF 100nF 330nF 1F 1F
3 4 5
+ +
TONE-Hb 18 TONE-Lb 17 SR FIL 16 CBA CTH CTL 15 14 13
+ 1F + + 1F + 1F 100nF 330nF 1F
6 7 8 9 10
3.9k 3.9k
Vref 12 V+ 11
+
22F
(NOTE) Separate the I C bus line from the following terminals for avoiding digital noise problem. Pin No. Symbol Pin No. Symbol Pin No. Symbol 3 TONE-Ha 16 SR FIL 18 TONE-Hb 4 TONE-La 17 TONE-Lb -
2
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NJW1173
s DEFINITION OF I C REGISTER 2 q I C BUS FORMAT
MSB LSB MSB LSB MSB LSB
2
S
1bit
Slave Address
8bit
A
1bit
Select Address
8bit
A
1bit
Data
8bit
A
P
1bit 1bit
S: Starting Term A: Acknowledge Bit P: Ending Term q SLAVE ADDRESS
MSB LSB
1
0
0
0
0
0
1
R/W
R/W=0: Write mode for register setting R/W=1: Not available q CONTROL REGISTER TABLE
The select address sets each function (Volume, Balance, AGC, Tone Control, Surround etc.). The auto-increment function cycles the select address as follows. 00H01H02H03H00H Select Address 00H 01H 02H 03H CHS BCB BCT BASS TREB BAL AGC-SW BIT D7 D6 D5 D4 VOL SUR AGC-FLAT Don't Care D3 D2 D1 D0
q CONTROL REGISTER DEFAULT VALUE Control register default value is all "0".
Select Address 00H 01H 02H 03H BIT D7 0 0 0 0 D6 0 0 0 0 D5 0 0 0 0 D4 0 0 0 0 D3 0 0 0 0 D2 0 0 0 0 D1 0 0 0 0 D0 0 0 0 0
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NJW1173
s I C CONTROL COMMAND DESCRIPTION qMASTER VOLUME CONTROL
Select Address 00H BIT D7 D6 D5 D4 VOL D3 D2 D1 D0
2
The volume controls both Ach and Bch by the 0.5dB step. The volume is consisted of volume1 and volume2. The level is divided into half to each volume1 and volume2. qBALANCE, AGC AND INPUT SELECTOR SETTINGS
Select Address 01H BIT D7 CHS D6 D5 D4 BAL D3 D2 D1 SUR D0
*CHS: Channel select for balance control "0": Ach "Bch is attenuated" "1": Bch "Ach is attenuated" *BAL: Balance control for both Ach and Bch (1dB/Step) The balance is consisted of volume2 alone. Volume1 does not operate on balance. *SUR : Surround Setting SUR Surround Setting Remarks D1 D0 Surround OFF 0 0 Input through Simulated Stereo mode 0 1 For monaural signal input only "eala" High mode 1 0 Surround Effect Small ( 8.0dB typ. ) "eala" Low mode 1 1 Surround Effect Large (12.0dB typ. ) qTONE CONTROL (Bass) and AGC SETTINGS
Select Address 02H BIT D7 BCB D6 D5 BASS D4 D3 D2 AGC-SW D1 D0 AGC-FLAT
*BCB : Bass Boost or Cut "0" : Cut "1" : Boost *BASS : BASS Level Cut Level : -15 to 0dB(1dB/Step) Boost Level : 0 to +15dB(1dB/Step) *AGC-SW : AGC ON/OFF Switch "0" : AGC OFF "1" : AGC ON (Default : 100mVrms) *AGC-FLAT : AGC Flat Level
AGC Flat Level 100mVrms 200mVrms 300mVrms 400mVrms AGC-FLAT D1 0 0 1 1 D0 0 1 0 1
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NJW1173
qTONE CONTROL (Treble) SETTINGS
Select Address 03H BIT D7 BCT D6 D5 TREB D4 D3 D2 D1
Don't Care
D0
*BCT : Treble Boost or Cut "0" : Cut "1" : Boost *TREB : Treble Level Cut Level : -15 to 0dB(1dB/Step)
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NJW1173
s Master Volume (Select Address: 00H)
VOL Gain(dB) 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 -35 -36 -37 -38 -39 -40 -41 -42 HEX FF FD FB F9 F7 F5 F3 F1 EF ED EB E9 E7 E5 E3 E1 DF DD DB D9 D7 D5 D3 D1 CF CD CB C9 C7 C5 C3 C1 BF BD BB B9 B7 B5 B3 B1 AF AD AB D7 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 D5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 D4 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 D3 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 D2 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 D1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 D0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
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NJW1173
MASTER VOLUME (Cont'd)
VOL Gain(dB) -43 -44 -45 -46 -47 -48 -49 -50 -51 -52 -53 -54 -55 -56 -57 -58 -59 -60 -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 -71 -72 -73 -74 -75 -76 -77 -78 -79 -80
* * *
HEX A9 A7 A5 A3 A1 9F 9D 9B 99 97 95 93 91 8F 8D 8B 89 87 85 83 81 7F 7D 7B 79 77 75 73 71 6F 6D 6B 69 67 65 63 61 5F
* * *
D7 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
* * *
D6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
* * *
D5 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0
* * *
D4 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1
* * *
D3 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1
* * *
D2 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1
* * *
D1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
* * *
D0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
* * *
-90
* * *
4B
* * *
0
* * *
1
* * *
0
* * *
0
* * *
1
* * *
0
* * *
1
* * *
1
* * *
-100 Mute
37 00
0 0
0 0
1 0
1 0
0 0
1 0
1 0
1 0
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NJW1173
s Balance (Select Address: 01H)
Channel Setting Attenuated Bch Gain Attenuated Ach Gain CHS D7 0 1 BAL D4 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
Gain(dB) 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 MUTE
D6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
D5 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
D3 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
D2 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
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NJW1173
s Tone Control Bass (Select Address: 02H)
Bass Cut or Boost Cut Boost BCB D7 0 1 BASS Cut Gain(dB) -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 Boost Gain(dB) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 D6 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 D5 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 D4 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 D3 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
s Tone Control Treble (Select Address: 03H)
Treble Cut or Boost Cut Boost BCT D7 0 1 TREB Cut Gain(dB) -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 Boost Gain(dB) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 D6 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 D5 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 D4 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 D3 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
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NJW1173
[CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. 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.
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