NJW1173 AUDIO PROCESSOR Q 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. All of internal status and variables are controlled by I2C BUS. It is suitable for any TV set. Q PACKAGE OUTLINE NJW1173V Q FEATURES O Operating Voltage 8 to 13V O I2C BUS Interface (Fast mode applicable, 3V I/F applicable) O Low Output Noise O AGC Circuit (Selectable 4-stage compression level via I2C BUS) O "eala" (NJRC Surround) O Simulated Surround O Bi-CMOS Technology O Package Outline SSOP20 Q BLOCK DIAGRAM SRFIL AGC TONE TONE -Ha -La OUTa CVO CBA VOL1 INa TONE CTH CTL VOL2 2 I C 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 Q 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 SDA Serial Data Input (I2C BUS) 8 SDA CTH 13 Pop Noise Reduction for Treble Control SCL Serial Clock Input (I2C BUS) 9 SCL Vref 12 Ground 10 GND V+ 11 -2- Bch Input Bch Output Reference Voltage Power Supply NJW1173 Q ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER SYMBOL + RATING UNIT Supply Voltage V 15 V Power Dissipation PD 350 mW Operating Temperature Range Topr -20 to +75 °C Storage Temperature Range Tstg -40 to +125 °C Q 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 Q 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 TIMING ON THE I2C BUS (SDA,SCL) SDA tf tr tSU:DAT tSP tHD:STA tf tBUF tr SCL tHD:STA tSU:STA S tLOW tHD:DAT tSU:STO tHIGH Sr P S CHARACTERISTICS OF I/O STAGES FOR I2C BUS (SDA,SCL) I2C BUS Load Conditions STANDARD MODE : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND) FAST MODE : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 50pF (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 Low level output voltage (3mA at SDA pin) VOL 0 - 0.4 0 - 0.4 V Ii -10 - 10 -10 - 10 µA Input current each I/O pin with an input voltage between 0.1VDD and 0.9VDDmax -5- NJW1173 CHARACTERISTICS OF BUS LINES (SDA,SCL) FOR I2C-BUS DEVICES PARAMETER Standard mode SYMBOL Fast mode UNIT MIN. TYP. MAX. MIN. TYP. MAX. 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 tSU:STA 4.7 - - 0.6 - - µs tHD:DAT 0 - - 0 - - µs 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 a repeated START condition Data hold time NOTE) Data set-up time Set-up time for STOP condition Cb ; total capacitance of one bus line in pF. NOTE). Data hold time : tHD:DAT Please hold the Data Hold Time (tHD:DAT) to 300ns or more to avoid status of unstable at SCL falling edge. The SDA block in the NJW1173 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. TLH ≈ RP*CD THL ≈ RD*CD (a) Low level Æ High level : (b) High level Æ Low level : In addition, Schottky barrier diode (SBD) influences a Low level at the Acknowledge. Therefore choose the low forward voltage (Vf) as much as possible. VDD RP RP SCL MASTER SBD SDA RD -6- CD NJW1173 NJW1173 TERMINAL DESCRIPTION No. SYMBOL FUNCTION 1 INa Ach Input terminal 20 INb Bch Input terminal EQUIVALENT CIRCUIT VOLTAGE V+/2 100k REF 2 OUTa Ach Output terminal 19 OUTb Bch Output terminal V+/2 FB 50 32k 3 TONE-Ha Ach Treble Filter terminal 18 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 V+/2 12k 400 1.4V 400 -7- NJW1173 TERMINAL DESCRIPTION No. SYMBOL FUNCTION 6 CSR Pop Noise Reduction for Surround ON/OFF Control EQUIVALENT CIRCUIT VOLTAGE V+/2 32k 7 CVO Pop Noise Reduction for Volume Control 8k V+/2 4k 8 SDA SDA Serial Data Input (I2C BUS) 9 SCL SDA Serial Clock Input (I2C BUS) 10 GND Ground terminal - - 11 V+ Power Supply terminal - - 12 Vref Reference Voltage 12k V+/2 200k -8- 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 36k VOLTAGE V+/2 12k 16 SRFIL Surround filter terminal FB 4k V+/2 -9- NJW1173 Q APPLICATION CIRCUIT 0.1 µF + 2.2nF 1 INa 2 OUTa INb 20 0.1 µF + OUTb 19 2.2nF 3 TONE-Ha TONE-Hb 18 4 TONE-La TONE-Lb 17 5 AGC 6 CVO CBA 15 7 CSR CTH 14 8 SDA CTL 13 9 SCL Vref 12 10 GND V+ 11 100nF 330nF 1µF + 1µF + 3.9kΩ 3.9kΩ 100nF 22nF SR FIL 16 1 µF + 1 µF + + 1 µF 1 µF + + 22 µF (NOTE) Separate the I2C 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 - - 10 - NJW1173 Q DEFINITION OF I2C REGISTER O I2C BUS FORMAT MSB S LSB Slave Address 1bit 8bit MSB LSB MSB A Select Address 1bit 8bit A LSB Data 1bit 8bit A P 1bit 1bit S: Starting Term A: Acknowledge Bit P: Ending Term O 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 O 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 O 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 - 11 - NJW1173 Q I2C CONTROL COMMAND DESCRIPTION OMASTER 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. OBALANCE, 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. ) OTONE CONTROL (Bass) and AGC SETTINGS BIT Select Address D7 02H BCB D6 D5 D4 D3 BASS AGC-SW •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 - 12 - AGC-FLAT D1 0 0 1 1 D2 D0 0 1 0 1 D1 D0 AGC-FLAT NJW1173 OTONE CONTROL (Treble) SETTINGS BIT Select Address D7 03H BCT D6 D5 D4 TREB D3 D2 D1 D0 Don't Care •BCT : Treble Boost or Cut “0” : Cut “1” : Boost •TREB : Treble Level Cut Level : -15 to 0dB(1dB/Step) - 13 - NJW1173 Q 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 - 14 - 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 - 15 - NJW1173 Q Balance (Select Address: 01H) CHS Channel Setting D7 Attenuated Bch Gain Attenuated Ach Gain D6 D5 BAL D4 D3 D2 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 1 1 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 -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) - 16 - 0 1 NJW1173 Q Tone Control Bass (Select Address: 02H) Bass Cut or Boost Cut Boost BCB D7 0 1 Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D3 -15 15 1 1 1 1 -14 -13 -12 -11 -10 -9 -8 -7 14 13 12 11 10 9 8 7 1 1 1 1 1 1 1 0 1 1 1 0 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 1 0 1 0 1 -6 -5 -4 -3 -2 -1 0 6 5 4 3 2 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 1 0 0 1 1 0 0 0 1 0 1 0 1 0 BASS Q 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 -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 - 17 - 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. - 18 -