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U2429

SERIAL DATA CONTROL DUAL ELECTRONIC VOLUME



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UTC U2429
SERIAL DATA CONTROL DUAL
ELECTRONIC VOLUME
DESCRIPTION
The UTC U2429 is a dual channel electronic volume
controlled with 2-wire serial data.
The built-in reference circuit can compose of an
electronic volume with less external parts.
FEATURES
* Built-in reference circuit
* Control with serial data
Volume 0 ~ -83dB (1dB/step), -
(Independent control is allowed in each channel)
* Low noise and low distortion
VNO = 5µVrms (ATT = -)
THD = 0.01% Typ. (V0 = 0.5Vrms)
PIN CONFIGURATION
VIN1 1
VOUT1 2
GND 3
DATA 4
CMOS IC
SOP-8
DIP-8
8 VIN2
7 VOUT2
6 VCC
5 CLOCK
PIN DESCRIPTION
PIN No.
PIN NAME
1 VIN 1
2 VOUT1
3 GND
4 DATA
5 CLOCK
6 VCC
7 VOUT2
8 VIN2
FUNCTION
1-ch input pin
1-ch output pin
Ground pin
Control data input pin. Inputs data in synchronization with clock.
Clock input pin for transferring serial data.
Power supply pin. Stabilize the pin with decoupling capacitor.
2-ch output pin
1-ch input pin
UTC
UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R502-031,A



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UTC U2429
BLOCK DIAGRAM
VIN2
8
CMOS IC
VOUT2
7
VCC CLOCK
65
VR 2
VR 1
+
-
VOL AMP 2
VOL AMP 1
-
+
REF AMP
Vref
LOGIC
CONTROL
1
VIN1
2
VOUT1
3
GND
4
DATA
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Power Dissipation
DIP-8
SOP-8
Operating Temperature
Storage Temperature
SYMBOL
VCC, VDD
PD
Topr
Tstg
RATINGS
6.0
625
440
-20 ~ +75
-55 ~ +125
UNIT
V
mW
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply voltage range
Vcc
Rated supply voltage
Vcc
RATINGS
4.5 ~ 5.5
5
UNIT
V
V
ELECTRICAL CHARACTERISTICS (VCC = 5V, Ta= 25, unless otherwise noted.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP
Circuit current
ICC
8
Maximum attenuation
ATT ATT=-
-90
Attenuation error
ATT ATT=0
-2.0 0
Maximum input voltage
VIM THD=1%, ATT=-6dB
1.5 1.7
Maximum output voltage
VOM THD=1%
0.8 1.3
Output noise voltage
VNO1 ATT=0, Rg=0
4
VNO2 ATT=-, Rg=0
5
Total harmonic distortion
THD f=1kHz, VO=0.5Vrms, ATT=0
0.01
Channel separation
CS f=1kHz
-80
MAX
16
-80
2.0
10
10
0.05
-70
UNIT
mA
dB
dB
Vrms
Vrms
μVrms
μVrms
%
dB
UTC UNISONIC TECHNOLOGIES CO., LTD. 2
QW-R502-031,A



Part Number U2429
Description SERIAL DATA CONTROL DUAL ELECTRONIC VOLUME
Maker UTC - UTC
Total Page 5 Pages
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