NJW1173 AUDIO PROCESSOR ■ 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. ■ PACKAGE OUTLINE NJW1173V ■ FEATURES ● Operating Voltage 8 to 13V 2 ● I C BUS Interface (Fast mode applicable, 3V I/F applicable) ● Low Output Noise 2 ● AGC Circuit (Selectable 4-stage compression level via I C BUS) ● "eala" (NJRC Surround) ● Simulated Surround ● Bi-CMOS Technology ● Package Outline SSOP20 ■ BLOCK DIAGRAM SRFIL AGC TONE TONE -Ha -La OUTa CVO CBA VOL1 INa TONE CTH CTL VOL2 I2C Bus Interface eala & Sim ulate Stereo AGC CSR SCL INb VOL1 TONE VOL2 SDA Bias TONE TONE -Hb -Lb OUTb V+ GND Vref -1- NJW1173 ■ PIN CONFIGURATION Ach Input 1 IN1a IN1b 20 Ach Output 2 OUTa OUTb 19 Ach Treble Filter 3 TONE-Ha TONE-Hb 18 Bch Treble Filter Ach Bass Filter 4 TONE-La TONE-Lb 17 Bch Bass Filter AGC Filter 5 AGC SR FIL 16 Surround Filter Pop Noise Reduction for Surround ON/OFF Control 6 CSR CBA 15 Pop Noise Reduction for Balance Control Pop Noise Reduction for Volume Control 7 CVO CTL 14 Pop Noise Reduction for BASS Control 2 8 SDA CTH 13 Pop Noise Reduction for Treble Control SCL Serial Clock Input (I C BUS) 2 9 SCL Vref 12 Ground 10 GND V+ 11 SDA Serial Data Input (I C BUS) -2- Bch Input Bch Output Reference Voltage Power Supply NJW1173 ■ ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER SYMBOL + RATING UNIT 15 V Supply Voltage V Power Dissipation PD 350 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, RL=47kΩ, Vin=100mVrms/1kHz, AGC=OFF, TONE=0dB, Surround=OFF unless otherwise specified) PARAMETER SYMBOL TEST CONDITION + MIN. TYP. MAX. UNIT 8.0 9.0 13.0 V Operating Voltage V Supply Current ICC No Signal - 13 25 mA VREF No Signal 4.0 4.5 5.0 V 2.8 3.0 - Vrms - 2.5 - Vrms Reference Voltage Maximum Input Voltage VIM VOL=-20dB,THD=10% Maximum Output Voltage VOM OUTPUT VOL=0dB,THD=1% Channel Balance 1 GCB1 VOL=0dB -1.0 0.0 1.0 dB Channel Balance 2 GCB2 VOL=-70dB, Vin=1Vrms -1.0 0.0 1.0 dB Balance Boost A BABST CHS=”0”, BAL=”11111” -2.0 0.0 2.0 dB Balance Cut A BACUT CHS=”1”, BAL=”11111” Vin = 1Vrms - - -70 dB Balance Boost B BBBST CHS=”1”, BAL=”11111” -2.0 0.0 2.0 dB Balance Cut B BBCUT - - -70 dB - - 0.3 % -2.0 0.0 2.0 dB - -100 -90 dB - -80 -70 dB - -90 (31.6) -106 (5.0) -85 (56.2) dBV (µVrms) dBV (µVrms) Total Harmonic Distortion THD Maximum Gain GVMAX Minimum Gain GVMIN Channel Separation CS Output Noise 1 VNO1 Output Noise 2 VNO2 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 -96 (15.8) BW: Band Width -3- NJW1173 ■ ELECTRICAL CHARACTERISTICS (Ta=25°C, V+=9V, Rg=600Ω, RL=47kΩ, Vin=100mVrms/1kHz, AGC=OFF, TONE=0dB, Surround=OFF unless otherwise specified) ♦ TONE CONTROL PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT High Frequency Boost HFBST BCT=”1”, TREB=”1111”, f=10kHz 12.5 15.0 17.5 dB High Frequency Flat HFFLT TREB=”0000”, f=10kHz -2.0 0.0 2.0 dB High Frequency Cut HFCUT BCT=”0”, TREB=”1111”, f=10kHz -17.5 -15.0 -12.5 dB Low Frequency Boost LFBST BCB=”1”, BASS=”1111”, f=100Hz 12.5 15.0 17.5 dB Low Frequency Flat LFFLT BASS=”0000”, f=100Hz -2.0 0.0 2.0 dB Low Frequency Cut LFCUT BCB=”0”, BASS=”1111”, f=100Hz -17.5 -15.0 -12.5 dB MIN. TYP. MAX. UNIT ♦ AGC CONTROL (AGC-ON) PARAMETER SYMBOL TEST CONDITION AGC Boost AGCBST Vin=50mVrms, f=1kHz 1.5 3.5 5.5 dB AGC Flat1 AGCFLT1 Vin=100mVrms, f=1kHz -2.5 0.0 2.5 dB AGC Flat2 AGCFLT2 Vin=200mVrms, f=1kHz -2.5 0.0 2.5 dB AGC Flat3 AGCFLT3 Vin=300mVrms, f=1kHz -2.5 0.0 2.5 dB AGC Flat4 AGCFLT4 Vin=400mVrms, f=1kHz -2.5 0.0 2.5 dB MIN. TYP. MAX. UNIT 6.0 8.0 10.0 dB 1.6 3.6 5.6 dB 10.0 12.0 14.0 dB 7.5 9.5 11.5 dB 1.0 3.0 5.0 dB 1.0 3.0 5.0 dB ♦ SURROUND (SURROUND-ON) PARAMETER SYMBOL Surround Gain1 SRGAIN1 Surround Gain2 SRGAIN2 Surround Gain3 SRGAIN3 Surround Gain4 SRGAIN 4 Simulated Surround Gain1 SRSIM1 Simulated Surround Gain2 SRSIM2 -4- TEST CONDITION Ain→Aout, f=100Hz SUR0=”1”, SUR=”1” Ain→Bout, f=100Hz SUR0=”1”, SUR=”1” Ain→Aout, f=100Hz SUR0=”0”, SUR=”1” Ain→Bout, f=100Hz SUR0=”0”, SUR=”1” Ain+Bin→Aout, f=1kHz SUR0=”1”, SUR=”0” Ain+Bin→Bout, f=1kHz SUR0=”1”, SUR=”0” NJW1173 2 ■ I C BUS CHARACTERISTICS 2 (SDA, SCL) I C BUS Load Conditions: Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND) PARAMETER SYMBOL Standard mode Fast mode MIN. TYP. MAX. MIN. TYP. MAX. UNIT Low Level Input Voltage VIL 0.0 - 1.5 0.0 - 1.5 V High Level Input Voltage VIH 2.7 - 5.0 2.7 - 5.0 V Hysteresis of Schmitt trigger inputs Vhys - - - 0.25 - - V Low level output voltage (3mA at SDA pin) VOL 0 - 0.4 0 - 0.4 V 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 tof - - 250 20 +0.1Cb - 250 ns tSP - - - 0 - 50 ns Ii -10 - 10 -10 - 10 µA Capacitance for each I/O pin Ci - - 10 - - 10 pF fSCL - - 100 - - 400 kHz tHD:STA 4.0 - - 0.6 - - µs Low period of the SCL clock tLOW 4.7 - - 1.3 - - µs High period of the SCL clock tHIGH 4.0 - - 0.6 - - µs Set-up time for a repeated START condition tSU:STA 4.7 - - 0.6 - - µs Data hold time tHD:DAT 0 - 3.45 0 - 0.9 µs Data set-up time tSU:DAT 250 - - 100 - - ns Rise time of both SDA and SCL signals tr - - 1000 - - 300 ns Fall time of both SDA and SCL signals tf - - 300 - - 300 ns tSU:STO 4.0 - - 0.6 - - µs Bus free time between a STOP and START condition tBUF 4.7 - - 1.3 - - µs Capacitive load for each bus line Cb - - 400 - - 400 pF Noise margin at the Low level VnL 0.5 - - 0.5 - - V Noise margin at the High level VnH 1 - - 1 - - V SCL clock frequency Hold time (repeated) START condition. Set-up time for STOP condition Cb ; total capacitance of one bus line in pF. SDA tf tr tHD:STA tf tSU:DAT tSP tBUF tr SCL tHD:STA tSU:STA S tLOW tHD:DAT tHIGH tSU:STO Sr P S -5- NJW1173 TERMINAL DESCRIPTION No. SYMBOL FUNCTION 1 INa Ach Input terminal EQUIVALENT CIRCUIT VOLTAGE + V /2 20 INb Bch Input terminal 100k REF 2 19 OUTa OUTb Ach Output terminal + FB V /2 Bch Output terminal 50 32k 3 18 TONE-Ha Ach Treble Filter terminal TONE-Hb Bch Treble Filter terminal + V /2 32k 12k 4 TONE-La Ach Bass Filter terminal 17 TONE-Lb Bch Bass Filter terminal 5 AGC Capacitor connection terminal for AGC attack and recovery time setting FB + 12k 12k 400 400 -6- V /2 1.4V NJW1173 TERMINAL DESCRIPTION No. SYMBOL FUNCTION EQUIVALENT CIRCUIT 6 CSR Pop Noise Reduction for Surround ON/OFF Control VOLTAGE + V /2 32k 7 CVO 8k Pop Noise Reduction for Volume Control + V /2 4k 2 8 SDA SDA Serial Data Input (I C BUS) 9 SCL SDA Serial Clock Input (I C BUS) 10 GND Ground terminal - - 11 V+ Power Supply terminal - - 12 Vref Reference Voltage 2 12k FB - -7- NJW1173 TERMINAL DESCRIPTION No. SYMBOL FUNCTION 13 CTH Pop Noise Reduction for Treble Control 14 CTL Pop Noise Reduction for Bass Control 15 CBA Pop Noise Reduction for Balance Control EQUIVALENT CIRCUIT VOLTAGE + 36k V /2 12k 16 -8- SRFIL Surround filter terminal FB + 4k V /2 NJW1173 ■ APPLICATION CIRCUIT 0.1 µF + 2.2nF 100nF 330nF 1 µF + 1 µF + 3.9kΩ 3.9kΩ 1 INa 2 OUTa INb 20 0.1µF + OUTb 19 2.2nF 3 TONE-Ha TONE-Hb 18 4 TONE-La TONE-Lb 17 5 AGC 100nF 330nF SR FIL 16 6 CVO CBA 15 7 CSR CTH 14 8 SDA CTL 13 9 SCL Vref 12 10 GND V+ 11 1 µF + 1 µF + + 1 µF 1 µF + + 22µF 2 (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 - -9- NJW1173 2 ■ DEFINITION OF I C REGISTER 2 ● I C BUS FORMAT MSB S LSB Slave Address 1bit 8bit MSB LSB A Select Address 1bit 8bit MSB A LSB Data 1bit A 8bit P 1bit 1bit S: Starting Term A: Acknowledge Bit P: Ending Term ● 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 ● 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. 00H→01H→02H→03H→00H Select Address BIT D7 D6 D4 D5 D3 D2 D1 D0 VOL 00H 01H CHS BAL 02H BCB BASS 03H BCT TREB SUR AGC-SW AGC-FLAT Don’t Care ● CONTROL REGISTER DEFAULT VALUE Control register default value is all “0”. Select Address BIT D7 D6 D5 D4 D3 D2 D1 D0 00H 0 0 0 0 0 0 0 0 01H 0 0 0 0 0 0 0 0 02H 0 0 0 0 0 0 0 0 03H 0 0 0 0 0 0 0 0 - 10 - NJW1173 2 ■ I C CONTROL COMMAND DESCRIPTION ●MASTER VOLUME CONTROL Select Address BIT D7 D6 D5 D4 D3 D2 D1 D0 VOL 00H 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. ●BALANCE, AGC AND INPUT SELECTOR SETTINGS BIT Select Address D7 01H CHS D6 D5 D4 D3 D2 D1 BAL D0 SUR •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. ) ●TONE CONTROL (Bass) and AGC SETTINGS BIT Select Address D7 02H BCB D6 D5 D4 D3 BASS 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 - 11 - NJW1173 ●TONE CONTROL (Treble) SETTINGS BIT Select Address D7 03H BCT D6 D5 •BCT : Treble Boost or Cut “0” : Cut “1” : Boost •TREB : Treble Level Cut Level : -15 to 0dB(1dB/Step) - 12 - D4 TREB D3 D2 D1 Don't Care D0 NJW1173 ■ Master Volume (Select Address: 00H) VOL Gain(dB) HEX D7 D6 D5 D4 D3 D2 D1 D0 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 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 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 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 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 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 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 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 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 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 - 13 - NJW1173 MASTER VOLUME (Cont'd) VOL Gain(dB) HEX D7 D6 D5 D4 D3 D2 D1 D0 -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 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 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 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 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 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 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 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 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 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 - 14 - NJW1173 ■ Balance (Select Address: 01H) CHS Channel Setting D7 Attenuated Bch Gain Attenuated Ach Gain 0 1 D6 D5 BAL D4 D3 D2 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 0 0 1 1 0 0 0 1 0 1 0 1 0 1 0 1 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 -23 -24 1 1 0 1 1 0 1 0 1 0 -25 -26 -27 -28 -29 -30 MUTE 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 1 1 1 1 0 1 1 0 0 1 1 1 0 1 0 1 0 1 Gain(dB) - 15 - NJW1173 ■ Tone Control Bass (Select Address: 02H) Bass Cut or Boost BCB D7 Cut Boost 0 1 Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D3 -15 -14 -13 15 14 13 1 1 1 1 1 1 1 1 0 1 0 1 -12 -11 12 11 1 1 1 0 0 1 0 1 -10 -9 10 9 1 1 0 0 1 0 0 1 -8 -7 8 7 1 0 0 1 0 1 0 1 -6 -5 6 5 0 0 1 1 1 0 0 1 -4 -3 4 3 0 0 1 0 0 1 0 1 -2 -1 2 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0 BASS ■ Tone Control Treble (Select Address: 03H) Treble Cut or Boost BCT D7 Cut Boost 0 1 TREB Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D3 -15 15 1 1 1 1 -14 14 1 1 1 0 -13 13 1 1 0 1 -12 12 1 1 0 0 - 16 - -11 11 1 0 1 1 -10 10 1 0 1 0 -9 9 1 0 0 1 -8 8 1 0 0 0 -7 7 0 1 1 1 -6 6 0 1 1 0 -5 5 0 1 0 1 -4 4 0 1 0 0 -3 3 0 0 1 1 -2 2 0 0 1 0 -1 1 0 0 0 1 0 0 0 0 0 0 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. - 17 -