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NJW1195
4-Channel Electronic Volume with Input Selector
s GENERAL DESCRIPTION The NJW1195 is a 4-channel electronic volume with 4-in 2-out stereo audio selector. It performs low noise and low distortion characteristics with resistance ladder circuit. The NJW1195 is also available for 2-channel differential transmission electronic volume with 2-in 1-out stereo audio selector by a differential transmission select function. All of functions are controlled via three-wired serial bus. Selectable 4-Chip address is available for using four chips on same serial bus line. It's suitable for two-channel stereo system and or multi-channel audio system. s FEATURES q Operating Voltage q 3-Wired Serial Control q Selectable 4-Chip Address q Low Output Noise q Low Distortion q 4in 2out Stereo Signal Selector q Volume q Differential transmission select function q Channel Separation q Zero Cross Detection q Bi-CMOS Technology q Package Outline s BLOCK DIAGRAM s PACKAGE OUTLINE
NJW1195V
4.5 to 7.5V Chip Address Select Function Available for using four chips on same serial bus line -118dBV typ. 0.0003% typ. at Vin=1Vrms (Differential transmission) +31.5 to -95dB / 0.5dB step, Mute -120dB typ. SSOP32
Application example 1
4-channel electronic volume with 4-in 2-out stereo audio selector (DIFF pin = Low)
4-input 2-output stereo selector (Single)
Application example 2
2-channel differential transmission electronic volume with 2-in 1-out stereo audio selector (DIFF pin = High)
4-channel Electronic Volume (Single)
Main Volume :+31.5 to -95dB / 0.5dBstep
2-input 1-output stereo selector (Differential)
2-channel Electronic Volume (Differential)
Main Volume :+31.5 to -95dB / 0.5dBstep
InA1 InA2 InA3 InA4
Out1A
Mute
InA1+ InA1InA2+ InA2Mute
OutA+
OutA-
Out2A
Mute
InB1 InB2 InB3 InB4
Out1B
Mute
InB1+ InB1InB2+ InB2Mute
OutB+
Out2B
Mute
OutB-
Zero Cross Detection
Control Logic
DIFF=Low
Zero Cross Detection
DIFF=High Control Logic
Data Latch ADR1 Clock ADR0
Data Latch ADR1 Clock ADR0
Ver 1.2 for web
-1-
NJW1195
s ABSOLUTE MAXIMUM RATING (Ta=25C) PARAMETER SYMBOL
Power Supply Voltage Maximum Input Voltage Power Dissipation Operating Temperature Range Storage Temperature Range V+/VVIM PD Topr Tstg
RATING
+8/-8 V+/V800
NOTE: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
UNIT
V V mW C C
-40 ~ +85 -40 ~ +125
s ELECTRICAL CHARACTERISTICS (Ta=25C, V+/V-=7V, RL=47k, Volume=0dB) PARAMETER SYMBOL TEST CONDITION MIN. x Power Supply Operating Voltage Supply Current 1 Supply Current 2
V+/VICC IEE No signal No signal 4.5 -
TYP.
MAX.
UNIT
7.0 9 9
7.5 15 15
V mA mA
x Input/Output Characteristics (Output)
Maximum Output Voltage Voltage Gain 1 Voltage Gain 2 Voltage Gain Error 1 Voltage Gain Error 2 Maximum Attenuation Mute level Cross Talk 1 Cross Talk 2 Channel Separation 1 VOM GV1 GV2 GV1 GV2 ATT Mute CT1 CT2 CS1 f=1kHz, THD=1% Volume=0dB VIN=2Vrms, f=1kHz Volume=0dB VIN=100mVrms, f=1kHz Volume=+15dB VIN=2Vrms, f=1kHz Volume=0dB VIN=2Vrms, f=1kHz Volume=-60dB f=1kHz, VIN=2Vrms Volume=-95dB, A-weight f=1kHz, VIN=2Vrms Volume=Mute, A-weight f=1kHz,VIN=2Vrms,A-weight Volume=0dB, Rg=0 f=20kHz, VIN =2Vrms, Volume=0dB, Rg=0 f=1kHz, VIN =2Vrms,A-weight Volume=0dB, Rg=0 Out1 vs. Out2 f=20kHz, VIN =2Vrms, Volume=0dB, Rg=0 Out1 vs. Out2 f=1kHz, VIN =2Vrms,A-weight Volume=0dB, Rg=0 OutA vs. OutB f=20kHz, VIN =2Vrms, Volume=0dB, Rg=0 OutA vs. OutB 3.6 -0.5 +14 -0.5 -1.0 4.2 0 +15 0 0 -95 -120 -115 -95 -120 0.5 +16 0.5 1.0 -90 Vrms dB dB dB dB dB dB dB dB dB
Channel Separation 2
CS2
-
-100
-
dB
Channel Separation 3
CS3
-
-120
-90
dB
Channel Separation 4 Input Impedance *
CS4 RIN
15
-100 20
-
dB k
Select Channel Input Terminal
* Input Impedance is reduced by half (10k typ.) when input selector 1 (SEL1) and input selector 2 (SEL2) chose the same input.
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Ver 1.2 for web
NJW1195
s ELECTRICAL CHARACTERISTICS (Ta=25C, V+/V-=7V, RL=47k, Volume=0dB) PARAMETER SYMBOL TEST CONDITION
Volume=0dB, Rg=0, A-weight Volume=-95dB, Rg=0, A-weight
f=1kHz,VIN=200mVrms,VOL=0dB, BW=400Hz-30kHz f=10kHz, VIN =200mVrms,VOL=0dB, BW=400Hz -30kHz f=1kHz, VIN =2Vrms,VOL=0dB, BW=400Hz -30kHz f=10kHz, VIN =2Vrms,VOL=0dB, BW=400Hz-30kHz f=1kHz, VIN =200mVrms, VOL=+15dB, BW=400Hz-30kHz f=10kHz, VIN =200mVrms, VOL=+15dB, BW=400Hz-30kHz f=1kHz, VIN =2Vrms, VOL=-18dB, BW=400Hz-30kHz f=10kHz, VIN =2Vrms, VOL=-18dB, BW=400Hz-30kHz f=1kHz, VIN =1Vrms,VOL=0dB, BW=400Hz-30kHz, Differential transmission f=10kHz, VIN =1Vrms,VOL=0dB,
MIN.
TYP.
-118 (1.26) -118 (1.26) 0.001 0.0015 0.0007 0.001 0.001 0.0015 0.0015 0.0015 0.0003
MAX.
-100 (10) 0.02 -
UNIT
dBV (Vrms) dBV (Vrms) % % % % % % % % %
x Input/Output Characteristics (Output)
Output Noise1 Output Noise2 Total Harmonic Distortion 1 Total Harmonic Distortion 2 Total Harmonic Distortion 3 Total Harmonic Distortion 4 Total Harmonic Distortion 5 Total Harmonic Distortion 6 Total Harmonic Distortion 7 Total Harmonic Distortion 8 Total Harmonic Distortion 9 VNO1 VNO2 T.H.D.1 T.H.D.2 T.H.D.3 T.H.D.4 T.H.D.5 T.H.D.6 T.H.D.7 T.H.D.8 T.H.D.9 -
Total Harmonic Distortion 10
T.H.D.10
BW=400Hz-30kHz, Differential transmission
-
0.0003
-
%
xLogic Control Characteristics
High Level Input Voltage Low Level Input Voltage VIH VIL DATA, CLOCK, LATCH, ADR0, ADR1, DIFF Terminal Input DATA, CLOCK, LATCH, ADR0, ADR1, DIFF Terminal Input 2.5 0 V
+
V V
1.5
[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.
Ver 1.2 for web
-3-

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