NJW1184 4-CHANNEL ELECTRONIC VOLUME ■ GENERAL DESCRIPTION The NJW1184 is a four channel electronic volume. The NJW1184 performs click-noiseless characteristics with VCA circuit. 2 These functions are controlled by I C Bus. And the Slave Address selector is available for using two chips on same serial bus line. It’s available for two-channel stereo and or multi-channel audio volume. ■ FEATURES ● Operating Voltage 2 ● I C Bus control ● Slave Address Selector ● Volume (VCA type) ● 2 Auxiliary Port ● Bi-CMOS Technology ● Package Outline ■ PACKAGE OUTLINE NJW1184M 7.5 to 13V available for using two chips on same serial bus line 0 to –100dB/0.5dBstep, MUTE DMP20 ■ BLOCK DIAGRAM OUT1 IN1 OUT3 IN3 CVOL1 CVOL2 CVOL3 VOL3 VOL1 CVOL4 2 I C Bus Interface AUX0 AUX1 ADR SCL VOL4 VOL2 SDA Bias IN2 OUT2 IN4 OUT4 V+ GND Vref -1- NJW1184 ■PIN CONFIGURATION No. Symbol 1 IN1 2 OUT1 3 IN2 4 OUT2 5 IN3 20 OUT3 19 IN4 18 OUT4 17 CVOL1 CVOL3 16 6 CVOL2 CVOL4 15 7 ADR AUX1 14 8 SDA AUX0 13 9 SCL Vref 12 10 GND V+ 11 Function No Symbol Function Input 1 11 V+ Power Supply Pin Output 1 12 Vref Reference Voltage Input 2 13 AUX0 Auxiliary Output0 Output 2 14 AUX1 Auxiliary Output1 1 IN1 2 OUT1 3 IN2 4 OUT2 5 CVOL1 DAC Output for Volume 1 15 CVOL4 DAC Output for Volume 4 6 CVOL2 DAC Output for Volume 2 16 CVOL3 DAC Output for Volume 3 7 ADR Slave Address Setting 17 OUT4 8 SDA SDA Data Input (I2C BUS) 18 IN4 9 SCL SCL Data Input (I2C BUS) 19 OUT3 10 GND GND 20 IN3 -2- Output 4 Input 4 Output 3 Input 3 NJW1184 ■ ABSOLUTE MAXIMUM RATING (Ta=25°C) PARAMETER Supply Voltage SYMBOL V RATING UNIT 15 V + 0 to V +(✴) Maximum Input Voltage VIM V Power Dissipation PD DMP20 : 350 mW Operating Temperature Range Topr -40 to +85 °C Storage Temperature Range Tstg -40 to +125 °C (✴) For the maximum input voltage less than 0 toV+ ■ ELECTRICAL CHARACTERISTICS (Ta=25°C, V+=9V, RL=47kΩ, Vin=100mVrms/1kHz, unless otherwise specified) ●POWER SUPPLY PARAMETER SYMBOL TEST CONDITION + MIN. TYP. MAX. UNIT 7.5 9.0 13.0 V Operating Voltage V Supply Current ICC No Signal - 4 10 mA VREF No Signal 4.0 4.5 5.0 V MIN. TYP. MAX. UNIT 2.8 3.0 - Vrms - 2.5 - Vrms -1.0 0.0 1.0 dB - - 0.3 % -2.0 0.0 2.0 dB - -100 -90 dB - -80 -70 dB - -90 (31.6) -85 (56.2) -106 (5.0) -96 (15.8) dBV (µVrms) dBV (µVrms) - 20 - kΩ Logic Output: High 4.5 - 5.5 Logic Output: Low 0 - 0.5 Reference Voltage ●VOLUME PARAMETER SYMBOL TEST CONDITION Maximum Input Voltage VIM VOL=-20dB,THD=1% Maximum Output Voltage VOM OUTPUT VOL=0dB,THD=1% Channel Balance GCB VOL=0dB Total Harmonic Distortion THD Vo=0.5Vrms BW=400Hz to 30kHz Maximum Gain GVMAX VOL= 0dB Minimum Gain GVMIN VOL= MUTE, Vin=2Vrms Channel Separation CS Output Noise 1 VNO1 Output Noise 2 VNO2 Input Impedance AUX Output Voltage Vin = 1Vrms A-weighting VOL = 0dB A-weighting VOL = MUTE A-weighting Ri VAUX V BW: Band Width ●CONTROL PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT High Level Input Voltage VADRH High : Slave Address 82H V /2 + - - V Low Level Input Voltage VADRL Low : Slave Address 80H - - 1.0 V -3- NJW1184 2 !TIMING ON THE I C BUS (SDA,SCL) SDA tf tr tHD:STA tf tSU:DAT tSP tBUF tr SCL tHD:STA tSU:STA S tLOW tHD:DAT tSU:STO tHIGH Sr P S 2 !CHARACTERISTICS OF I/O STAGES FOR I C BUS (SDA,SCL) 2 I C 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 -4- NJW1184 2 !CHARACTERISTICS OF BUS LINES (SDA,SCL) FOR I C-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 NJW1184 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 ! High level : (b) High level ! 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 NJW1184 CD -5- NJW1184 ! TERMINAL DESCRIPTION PIN NO. SYMBOL FUNCTION TERMINAL DC VOLTAGE EQUIVALENT CIRCUIT V+ 1 3 20 18 IN1 IN2 IN3 IN4 Input 1 Input 2 Input 3 Input 4 20kΩ + V /2 V+ 2 4 19 17 OUT1 OUT2 OUT3 OUT4 Output 1 Output 2 Output 3 Output 4 FB 50Ω + V /2 V+ 5 6 16 15 CVOL1 CVOL2 CVOL3 CVOL4 DAC Output for Volume 1 DAC Output for Volume 2 DAC Output for Volume 3 DAC Output for Volume 4 + V /2 – 0.7V (0dB setting) 8kΩ V+ 4kΩ 7 ADR 82(h) VADR> V+/2 Slave Address Setting 80(h) VADR< 1.0V 12kΩ -6- NJW1184 ! TERMINAL DESCRIPTION PIN NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT TERMINAL DC VOLTAGE VREG 5V 4kΩ 8 9 SDA SCL 2 SDA Data Input (I C BUS) 2 SCL Data Input (I C BUS) - SCL:GND SDA:ACK 12kΩ V+ 200kΩ 12 Vref + V /2 Reference Voltage V+ 13 14 AUX0 AUX1 Auxiliary Output 0 Auxiliary Output 1 50Ω V+ VREG 5V 0V / 5V -7- NJW1184 ■ APPLICATION CIRCUIT 0.47µF 1 IN1 + 0.47µF 4.7µF + 1µF 2 OUT1 3 IN2 4 OUT2 5 CVOL1 + 1µF + 6 CVOL2 7 ADR 8 SDA 9 SCL 10 GND NJW1184 4.7µF IN3 20 OUT3 19 IN4 18 OUT4 17 0.47µF 4.7µF + 0.47µF 4.7µF + CVOL3 16 1µF + CVOL4 15 1µF + AUX1 14 AUX0 13 Vref 12 1µF + V+ 11 + -8- 10µF NJW1184 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 1bit LSB Data A 8bit P 1bit 1bit S: Starting Term A: Acknowledge Bit P: Ending Term ● SLAVE ADDRESS MSB LSB 1 0 0 0 0 0 ADR R/W ADR: Hardware pin programmable address bits 80(h), 82(h) R/W=0: Write mode for register setting R/W=1: Not available ● CONTROL REGISTER TABLE The select address sets each function (Volume, Aux). The auto-increment function cycles the select address as follows. 00H→01H→02H→03H→04H→00H Select Address BIT D7 D6 D5 D4 D3 D2 D1 D0 Don’t Care Don’t Care AUX1 AUX0 00H VOL-1 01H VOL-2 02H VOL-3 03H VOL-4 04H Don’t Care Don’t Care Don’t Care 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 04H 0 0 0 0 0 0 0 0 -9- NJW1184 2 ■ I C CONTROL COMMAND DESCRIPTION a) Master Volume (Select Address: 00H, 01H, 02H, 03H) Volume level : 0 to –100dB(0.5dB/step), MUTE VOL-1 / VOL-2 / VOL-3 / VOL-4 Gain(dB) HEX D7 D6 D5 D4 D3 D2 D1 D0 0 FF 1 1 1 1 1 1 1 1 -0.5 FE 1 1 1 1 1 1 1 0 -1.0 FD 1 1 1 1 1 1 0 1 -1.5 FC 1 1 1 1 1 1 0 0 -2.0 FB 1 1 1 1 1 0 1 1 -2.5 FA 1 1 1 1 1 0 1 0 -3.0 F9 1 1 1 1 1 0 0 1 -3.5 F8 1 1 1 1 1 0 0 0 -4.0 F7 1 1 1 1 0 1 1 1 -4.5 F6 1 1 1 1 0 1 1 0 -5.0 F5 1 1 1 1 0 1 0 1 -5.5 F4 1 1 1 1 0 1 0 0 -6.0 F3 1 1 1 1 0 0 1 1 -6.5 F2 1 1 1 1 0 0 1 0 -7.0 F1 1 1 1 1 0 0 0 1 -7.5 F0 1 1 1 1 0 0 0 0 -8.0 EF 1 1 1 0 1 1 1 1 -8.5 EE 1 1 1 0 1 1 1 0 -9.0 ED 1 1 1 0 1 1 0 1 -9.5 EC 1 1 1 0 1 1 0 0 -10.0 EB 1 1 1 0 1 0 1 1 -10.5 EA 1 1 1 0 1 0 1 0 -11.0 E9 1 1 1 0 1 0 0 1 -11.5 E8 1 1 1 0 1 0 0 0 -12.0 E7 1 1 1 0 0 1 1 1 -12.5 E6 1 1 1 0 0 1 1 0 -13.0 E5 1 1 1 0 0 1 0 1 -13.5 E4 1 1 1 0 0 1 0 0 -14.0 E3 1 1 1 0 0 0 1 1 -14.5 E2 1 1 1 0 0 0 1 0 -15.0 E1 1 1 1 0 0 0 0 1 -15.5 E0 1 1 1 0 0 0 0 0 -16.0 DF 1 1 0 1 1 1 1 1 -16.5 DE 1 1 0 1 1 1 1 0 -17.0 DD 1 1 0 1 1 1 0 1 ･･･ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・ -99.5 38 0 0 1 1 1 0 0 0 -100.0 37 0 0 1 1 0 1 1 1 ･･･ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・ ・・・ Mute 00 0 0 0 0 0 0 0 0 - 10 - NJW1184 b) AUXILIARY SETTING BIT Select Address D7 D6 D5 D4 D3 D2 D1 D0 04H Don’t Care Don’t Care Don’t Care Don’t Care Don’t Care Don’t Care AUX1 AUX0 •AUX1/AUX0: Auxiliary port High/Low “0” : Logic output ”Low” “1” : Logic output ”High” - 11 - NJW1184 ! TYPICAL CHARACTERISTICS Supply Current vs Tem parature V+=9V , Vin=No Signal , Volume=0dB Reference Voltage vs Tem parature V+=9V , Vin=No Signal , Volume=0dB 10 9 9 8 8 Reference Voltage [V] 10 Supply Current [mA] 7 6 5 4 3 7 6 5 4 3 2 2 1 1 0 -50 -25 0 25 50 75 100 0 -50 125 -25 0 25 Temparature [℃] 50 75 100 125 Temparature [℃] Supply Current vs Supply Voltage Vin=No Signal , Volume=0dB Reference Voltage vs Supply Voltage Vin=No Signal , Volume=0dB 10 12 9 10 8 Reference Voltage[V] Supply Current [mA] 7 6 5 Ta=85℃ 25℃ 4 3 2 -40℃ 8 6 Ta=85,25,-40℃ 4 2 1 0 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 4 5 Supply Voltage [V] 0 0 -20 -20 -40 -40 -60 vol=0dB -100 -120 -50 8 9 10 11 12 13 14 15 -60 -80 -100 vol=mute -25 0 25 50 Temparature [℃] - 12 - 7 Mute Level vs Tem parature V+=9V, Rg=600Ω,Vin=1Vrms , A-Weighting Mute Level [dB] Out Noise [dBV] Out Noise vs Tem parature V+=9V, Rg=600Ω, A-Weighting -80 6 Supply Voltage[V] 75 100 125 -120 -50 -25 0 25 50 Temparature [℃] 75 100 125 NJW1184 ! TYPICAL CHARACTERISTICS Channel Separation vs Frequency V+=9V , Vin=1Vrms , A-Weighting , Ta=25℃ Rg=600Ω 0 0 -20 -20 Channel Separation [dB] Channel Separation[dB] Channel Separation vs Frequency V+=9V , Vin=1Vrms , A-Weighting , Rg=600Ω Vin:IN2+IN3+IN4 , Vout:OUT1 -40 -60 Ta=85, 25, -40℃ -80 -100 -40 -60 OUT1,OUT2,OUT3,OUT4 -80 -100 10 100 1000 10000 100000 10 100 1000 Frequency [Hz] THD+N vs Input Voltage (Volum e Control) V+=9V, Vin=CH1, f=1kHz, Ta=25℃ Rg=600Ω, BW=400Hz-30kHz, Vout=OUT1 1 1 -30dB THD+N [%] 10 THD+N[%] 10 -40℃ -20dB 0.1 25℃ -10dB Ta=85℃ 0.01 0.01 100000 Frequency [Hz] THD+N vs Input Voltage (Tem parature) V+=9V, Vin=CH1, f=1kHz, volume=0dB Rg=600Ω, BW=400Hz-30kHz, Vout=OUT1 0.1 10000 0.1 1 vol=0dB 0.01 0.01 10 Input Voltage [V] 0.1 1 10 Input Voltage [V] THD+N vs Output Voltage (Tem parature) V+=9V, Vin=CH1, f=1kHz, volume=0dB Rg=600Ω, BW=400Hz-30kHz, Vout=OUT1 THD+N vs Output Voltage (Volum e Contorol) V+=9V, Vin=CH1, f=1kHz, Ta=25℃ Rg=600Ω, BW=400Hz-30kHz, Vout=OUT1 10 10 -20dB -30dB vol=0dB -10dB 1 THD+N [%] THD+N [%] 1 -40℃ 0.1 0.1 25℃ Ta=85℃ 0.01 0.01 0.1 1 Output Voltage [V] 10 0.01 0.01 0.1 1 10 Output Voltage [V] - 13 - NJW1184 ! TYPICAL CHARACTERISTICS Gain vs Volum e Control (Tem parature) V+=9V, Rg=600Ω, Vin=1Vrms,Vin=IN1 Gain vs Volum e Control V+=9V, Rg=600Ω, Vin=1Vrms,Ta=25℃ 0 0 -10 -10 -20 -20 Vout=OUT1 -30 -30 Vout=OUT1,2,3,4 -40 Gain[dB] Gain[dB] -40 Ta=85, 25, -40℃ -50 -60 -50 -60 -70 -70 -80 -80 -90 -90 -100 -100 -110 -110 0 20 40 60 80 100 120 0 20 40 Volume Control[dB] 5 5 4 4 3 3 2 Ta=85, 25, -40℃ 0 -1 -2 120 Ta=-40℃ 1 0 -1 Ta=85, 25 -2 -3 -4 -4 -5 -5 0 20 40 60 80 100 120 Volume Control [dB] 3 2.5 2 1.5 1 0.5 0 0.1 1 10 RL [kΩ] 0 20 40 60 80 Volume Control [dB] Maxim um Output Voltage vs RL V+=9V, THD=1% Maximum Output Voltage [Vrms] 100 2 -3 - 14 - 80 Channel Balance vs Volum e Control (CH3-CH4) Vin=1Vrms,V+=9V Channel Balance [dB] Channel Balance [dB] Channel Balance vs Volum e Control (CH1-CH2) Vin=1Vrms,V+=9V 1 60 Volume Control[dB] 100 100 120 NJW1184 [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. - 15 -