4 INPUT/1 OUTPUT STEREO AUDIO SELECTOR - Unisonic Technologies
Description
UNISONIC TECHNOLOGIES CO.
, LTD
UM2750
Preliminary
LINEAR INTEGRATED CIRCUIT
4 INPUT/1 OUTPUT STEREO AUDIO SELECTOR
DESCRIPTION
The UTC UM2750 is a Stereo Audio Selector with 4 Inputs and 1 Output.
Based upon the inner OP-AMP Switch technology, the UTC UM2750 features higher Channel Separation, lower Output Noise and lower Distortion than the common Multiplexers or Analogue Switches.
The UTC UM2750 can be applied to many kinds of audio devices, such as Car Stereo, TV, Mini music center and so on.
FEATURES
* Dual Channel for Stereo Use * 4.
7~13V Operating Voltage * 4 Input /1 Output Audio Selectors * Bipolar Technology * Low Output Noise: -110dBV typ.
* Low Distortion: 0.
005% typ.
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UM2750L-S16-R
UM2750G-S16-R
UM2750L-S16-T
UM2750G-S16-T
Package
SOP-16 SOP-16
Packing
Tape Reel Tube
www.
unisonic.
com.
tw Copyright © 2012 Unisonic Technologies Co.
, Ltd
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QW-R109-031.
a
UM2750
PIN CONFIGURATION
Preliminary
IN1a 1 CNT1 2 IN2a 3 CNT2 4 IN4a 5 IN1b 6 IN2b 7 IN4b 8
LINEAR INTEGRATED CIRCUIT
16 GND 15 OUTa 14 V+ 13 IN3a 12 VREF 11 OUTb 10 (N.
C.
) 9 IN3b
PIN DESCRIPTION
PIN NO.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
PIN NAME IN1a CNT1 IN2a CNT2 IN4a IN1b IN2b IN4b IN3b (N.
C.
) OUTb VREF IN3a V+ OUTa GND
Ach Input 1 Select Control 1 Ach Input 2 Select Control 2 Ach Input 4 Bch Input 1 Bch Input 2 Bch Input 4 Bch Input 3 No Connect Bch Output Reference Voltage Ach Input 3 Supply Voltage Ach Output Ground
DESCRIPTION
UNISONIC TECHNOLOGIES CO.
, LTD
www.
unisonic.
com.
tw
2 of 5
QW-R109-031.
a
UM2750
BLOCK DIAGRAM
Preliminary
LINEAR INTEGRATED CIRCUIT
IN1a 1
16 GND
CNT1 2
IN2a 3
CNT2 4
Logic Circuit
IN4a 5
IN1b 6
IN2b 7
IN4b 8
15 OUTa V+ 14 V+
bias
13 IN3a 12 VREF
11 OUTb
10 (N.
C.
)
9 IN3b
UNISONIC TECHNOLOGIES CO.
, LTD
www.
unisonic.
com.
tw
3 of 5
QW-R109-031.
a
UM2750
Preliminary
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specif...
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