PRELIMINARY NJW1156 2-CHANNEL ELECTRONIC VOLUME WITH INPUT SELECTOR ■ GENERAL DESCRIPTION NJW1156 is a two channel electronic volume with 5 input selector. It’s suitable for Input signal trimmer of audio equipments such as DVD / HDD recorder 2 and VCR. These functions are controlled by I C Bus. ■ FEATURES ● Operating Voltage 2 ● I C Bus control ● 5 Input Selector ● Volume ● Bi-CMOS Technology ● Package Outline ■ PACKAGE OUTLINE NJW1156V NJW1156M 8 to 13V 0 to –39.5dB/0.5dBstep, MUTE SSOP20, DMP20 ■ BLOCK DIAGRAM A/D I2C Interface INPUTS I2C Control V+ V+ INPUTS GND GND A/D –1– PRELIMINARY NJW1156 ■ PIN FUNCTION 20 11 1 10 ■ ABSOLUTE MAXIMUM RATING (Ta=25°°C) PARAMETER SYMBOL No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 SYMBOL GND R1IN R2 IN R3IN R4IN R5IN ROUT VSSOUT SCL SDA VDDOUT VREFOUT V+ VREFIN LOUT L5IN L4IN L3IN L2IN L1IN FUNCTION Ground R channel Input 1 R channel Input 2 R channel Input 3 R channel Input 4 R channel Input 5 R channel Output Internal VSS Noise Rejection Capacitor Terminal I2C Clock Input I2C Data Input Internal VDD Noise Rejection Capacitor Terminal Reference Voltage Output Power Supply Reference Voltage Noise Rejection Capacitor Terminal L channel Output L channel Input 5 L channel Input 4 L channel Input 3 L channel Input 2 L channel Input 1 RATING UNIT Power Supply Voltage V+ 15 V Power Dissipation PD 375 mW Operating Temperature Range Topr -20 to +75 °C Storage Temperature Range Tstg -40 to +125 °C ■ ELECTRICAL CHARACTERISTICS (Ta=25°°C,V+=+12V) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Operating Voltage V+ - 8 12 13 V Reference Voltage Supply Current Vref - 5.5 6 6.5 V - 4.5 6.8 mA 3.0 4.0 - Vrms -0.5 0 0.5 dB -21 -20 -19 dB -42.0 -39.5 -37.0 dB -0.5 0 0.5 dB - -100 - dB - -110 (3.2µ) -100 (10µ) dBV (Vrms) - 0.0015 0.05 % - -100 -90 dB ◆ Power Supply ICC No signal ◆ Input/Output Characteristics Maximum Output Voltage VOM Voltage Gain 1 GV1 Voltage Gain 2 GV2 Voltage Gain 3 GV3 Voltage Gain Error ∆GV Mute Level Mute Output Noise VNO Total Harmonic Distortion THD Channel Separation –2– CS f=1kHz,THD=1% Volume=0dB VIN=1Vrms, f=1kHz Volume=0dB VIN=1Vrms, f=1kHz Volume=-20dB VIN=1Vrms, f=1kHz Volume=-39.5dB VIN=1Vrms, f=1kHz Volume=-20dB , Ach - Bch f=1kHz, VIN=1Vrms Volume=Mute, A-weight Volume=0dB, Rg=0,A-weight f=1kHz,Vo=1Vrms, Volume=0dB BW : 400Hz - 30kHz f=1kHz,Vo=1Vrms, Volume=0dB Rg=0Ω, A-weight PRELIMINARY NJW1156 2 ■ I C BUS BLOCK CHARACTERISTICS (SDA,SCL) PARAMETER SYMBOL MIN. TYP. MAX. UNIT High Level Input Voltage VIH 2.5 - 5.0 V Low Level Input Voltage VIL 0 - 1.5 V High Level Input Current IIH - - 10 µA Low Level Input Current IIL - - 10 µA Low Level Output Voltage (3mA at SDA pin) VOL 0 - 0.4 V Maximum Output Current IOL -3.0 - - mA Maximum Clock Frequency fSCL - - 100 kHz Data Change Minimum Waiting Time tBUF 4.7 - - µs tHD:STA 4.0 - - µs Low Level Clock Pulse Width tLOW 4.7 - - µs High Level Clock Pulse Width tHIGH 4.0 - - µs Minimum Start Preparation Waiting Time tSU:STA 4.7 - - µs Minimum Data Hold Time tHD:DAT 5.0 - - µs Minimum Data Preparation Time tSU:DAT 250 - - ns Rise Time tR - - 1.0 µs Fall Time tF - - 300 ns tSU:STO 4.0 - - µs Data Transfer Start Minimum Waiting Time Minimum Stop Preparation Waiting Time 2 I C BUS Load Condition: Pull up resistance 4kΩ (Connected to +5V) Load capacitance 200pF (Connected to GND) SDA tBUF tR tHD:STA tF SCL tHD:STA tLOW P S tHD:DAT tHIGH tSU:STA tSU:DAT tSU:STO Sr P –3– PRELIMINARY NJW1156 TERMINAL DESCRIPTION PIN NO. SYMBOL 2 3 4 5 6 16 17 18 19 20 R1IN R2IN R3IN R4IN R5IN L5IN L4IN L3IN L2IN L1IN FUNCTION R channel Input 1 R channel Input 2 R channel Input 3 R channel Input 4 R channel Input 5 L channel Input 5 L channel Input 4 L channel Input 3 L channel Input 2 L channel Input 1 TERMINAL DC VOLTAGE EQUIVALENT CIRCUIT V+ + V /2 300 50K 50K VREF GND VREF V+ 400 7 15 ROUT LOUT Rch Output Lch Output + V /2 GND V+ 8 VSS_OUT Internal VSS Noise Rejection Capacitor Terminal 11 VDD_OUT Internal VDD Noise Rejection Capacitor Terminal VSS_OUT =Vref – 2.5V VDD_OUT =Vref + 2.5V V- (SUB) 4K 9 SCL 2 I C Clock Input 8K GND –4– PRELIMINARY NJW1156 TERMINAL DESCRIPTION PIN NO. SYMBOL FUNCTION TERMINAL DC VOLTAGE EQUIVALENT CIRCUIT 4K 10 SDA 2 I C Data Input 8K GND V+ 400 12 VREFOUT + V /2 Reference Voltage Output GND 13 V+ Power Supply V+ GND V+ 50K 14 VREFIN Reference Voltage Noise Rejection Capacitor Terminal + 50K V /2 GND –5– PRELIMINARY NJW1156 ■ APPLICATION CIRCUIT 1 20 GND 10µF 2 R1IN 19 3 18 10µF 4 R3IN 17 10µF R4IN 5 VREFIN 7 8 –6– LOUT 10µF 10µF SDA L5IN 15 10µF SCL L4IN 10µF 10µF 6 ROUT L3IN 10µF 16 10µF R5IN L2IN 10µF 10µF R2IN L1IN 10µF 9 10 14 VSSOUT V+ I2C Interface 13 1µF 100µF 12 10µF 10µF VREFOUT VDDOUT 11 PRELIMINARY NJW1156 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 LSB A 1bit Data A P 8bit 1bit 1bit S: Starting Term A: Acknowledge Bit P: Ending Term ♦SLAVE ADDRESS MSB LSB 1 0 0 0 0 0 1 0 ♦CONTROL REGISTER TABLE The select address sets each function (Volume, Selector). The auto increment function cycles the select address as follows. 00H→01H→02H→00H Select Address BIT D7 D6 D4 D5 D3 00H Don’t Care VOLa 01H Don’t Care VOLb 02H Don’t Care TEST OFF D2 D1 D0 Selector Don’t Care ♦CONTROL REGISTER DEFAULT VALUE Control register default value is all “0”. BIT Select Address D7 D6 00H 01H 02H 0 0 0 0 0 0 D5 D4 D3 D2 D1 D0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 –7– PRELIMINARY NJW1156 ■ CONTROL COMMAND TABLE a) Master Volume Select Address 00H 01H BIT D7 D6 D5 D4 D3 D2 D1 D0 VOLa VOLb Don’t Care Don’t Care •VOLa / VOLb : Ach and Bch volume level setting from 0dB to –39.5dB with 0.5dB step. Gain (dB) D6 D5 D4 VOLa / VOLb D3 0 -0.5 -1 -1.5 -2 -2.5 -3 -3.5 -4 -4.5 -5 -5.5 -6 -6.5 -7 -7.5 -8 -8.5 -9 -9.5 -10 -10.5 -11 -11.5 -12 -12.5 -13 -13.5 -14 -14.5 -15 -15.5 -16 -16.5 -17 -17.5 -18 -18.5 -19 -19.5 -20 ••• -39.5 Mute 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 0 0 0 ••• 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 1 1 1 1 1 1 1 1 1 ••• 0 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 0 0 0 ••• 0 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 0 0 0 0 0 1 ••• 1 1 –8– D2 D1 D0 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 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 0 1 1 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 1 PRELIMINARY NJW1156 b)Input Selector BIT Select Address D7 D6 D5 01H Don’t Care TEST OFF D4 D3 Don’t Care D2 D1 D0 Selector •Selector : Input signal selecting Selector Input D2 D1 D0 L1IN / R1IN 0 0 0 L2IN / R2IN 0 0 1 L3IN / R3IN 0 1 0 L4IN / R4IN 0 1 1 L5IN / R5IN 1 0 0 –9– PRELIMINARY NJW1156 TYPICAL CHARACTERISTICS Voltage Gain vs. Attenuater Set Level Ta=25oC 4.5 0 4 -5 3.5 -10 3 -15 Voltage Gain [dB] Operating Current [mA] Operating Current vs. Supply Voltage Ta=25oC 2.5 2 1.5 -20 L1,R1IN -25 -30 1 -35 0.5 -40 -45 0 0 5 10 Supply Voltage [V] 0 15 -5 Attenuator Set Level [dB] THD+N vs. Input Level V +=12V, VOL=0dB, BW=10Hz-80kHz INPUT:L1IN, OUTPUT:LOUT 10 -10 -15 -20 -25 -30 -35 -40 -45 THD+N vs. Input Level V +=12V, f=1kHz, BW=10Hz-80kHz INPUT:L1IN, OUTPUT:LOUT 10 -20dB 1 -30dB THD+N [%] THD+N [%] 1 0.1 20kHz 0.01 0.1 0.01 0dB 20Hz,1kHz 0.001 -40 -20 0 Input Level [dB] 20 -10dB 0.001 -40 Operating Current vs. Supply Voltage -20 0 Input Level [dB] 20 Operating Current vs. Ambient Temperature V +=12V 5 5 25oC Operating Current [mA] Operating Current [mA] 4 3 125oC 2 -40oC 4.5 4 3.5 1 0 0 5 10 Supply Voltage [V] – 10 – 15 3 -50 0 50 100 Ambient Temperature [oC] 150 PRELIMINARY NJW1156 TYPICAL CHARACTERISTICS Attenuation Level vs. Ambient Temperature V +=12V,V in=1V,f=1kHz,Vol=-20dB 1.0 -10 0.5 -15 Attenuation Level [dB] Voltage Gain [dB] Voltage Gain vs. Ambient Temperature V +=12V,V in=1V,f=1kHz,Vol=0dB 0.0 -0.5 -20 L1,R1IN -25 L1,R1IN -30 -1.0 -50 0 50 100 -50 150 0 50 100 150 Ambient Temperature [oC] Ambient Temperature [oC] Attenuation Level vs. Ambient Temperature V+=12V,Vin=1V,f=1kHz,Vol=-39.5dB Attenuation Level vs. Ambient Temperature V+=12V,Vin=1V,f=1kHz,Vol=Mute -80 -30 -85 -90 Attenuation Level [dB] Attenuation Level [dB] -35 -40 L1,R1IN -45 R1IN -95 -100 -105 -110 L1IN -115 -120 -125 -50 -50 0 50 100 -130 -50 150 0 13.0 -60 12.5 -70 12.0 11.5 11.0 L1,R1IN 10.5 10.0 9.0 50 100 Ambient Temperature [oC] 150 -80 -90 -100 R1IN -110 -120 9.5 0 100 Output Noise Level vs. Ambient Temperature V+=12V,Rg=0Ω,Vol=0dB,A-w eight Output Noise Level [dBV] Maximum Output Voltage [dBV] Maximam Output Voltage vs. Ambient Temperature V+=12V,f=1kHz,THD+N=1%,Vol=0dB -50 50 Ambient Temperature [oC] Ambient Temperature [oC] 150 -130 -50 L1IN 0 50 100 150 Ambient Temperature [oC] – 11 – PRELIMINARY NJW1156 TYPICAL CHARACTERISTICS THD+N vs. Ambient Temperature V +=12V,V in=1V,f=1kHz,THD+N=1%,Vol=0dB 10 THD+N [%] 1 0.1 0.01 0.001 -50 L1IN R1IN 0 50 100 Ambient Temperature [oC] – 12 – 150 PRELIMINARY NJW1156 ■NOTE Purchase of I2C components of New Japan Radio Co., Ltd or one of its sublicensed Associated Companies conveys a license under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips. [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. – 13 –