UNISONIC TECHNOLOGIES CO., LTD
U2429
SERIAL DATA CONTROL
DUAL ELECTRONIC VOLUME
DESCRIPTION
DIP-8
CMOS IC
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
SOP-8
* 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)
ORDERING INFORMATION
Ordering Number
Lead Free
U2429L-D08-T
-
Halogen Free
U2429G-D08-T
U2429G-S08-R
Package
DIP-8
SOP-8
Packing
Tube
Tape Reel
MARKING
DIP-8
SOP-8
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PIN CONFIGURATION
CMOS IC
PIN DESCRIPTION
PIN NO
1
2
3
4
5
6
7
8
PIN NAME
V
IN 1
V
OUT1
GND
DATA
CLOCK
V
CC
V
OUT2
V
IN2
DESCRIPTION
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
BLOCK DIAGRAM
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ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
V
CC
, V
DD
CMOS IC
RATINGS
UNIT
Supply Voltage
6.0
V
SOP-8
440
mW
Power Dissipation
P
D
DIP-8
625
mW
Junction Temperature
T
J
125
°C
Operating Temperature
T
OPR
-20 ~ +85
°C
Storage Temperature
T
STG
-40 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
SYMBOL
V
CC
V
CC
RATINGS
4.5 ~ 5.5
5
UNIT
V
V
PARAMETER
Supply voltage range
Rated supply voltage
ELECTRICAL CHARACTERISTICS
(V
CC
= 5V, T
A
= 25°C, unless otherwise noted)
SYMBOL
I
CC
A
TT
A
TT
V
IM
V
OM
V
NO1
V
NO2
THD
CS
TEST CONDITIONS
A
TT
=-∞
A
TT
=0
THD=1%, ATT=-6dB
THD=1%
A
TT
=0, R
g
=0
A
TT
=-∞, R
g
=0
f=1kHz, V
O
=0.5Vrms, A
TT
=0
f=1kHz
MIN
TYP
8
-90
0
1.7
1.3
4
5
0.01
-80
MAX
16
-80
2.0
UNIT
mA
dB
dB
Vrms
Vrms
μVrms
μVrms
%
dB
PARAMETER
Circuit current
Maximum attenuation
Attenuation error
Maximum input voltage
Maximum output voltage
Output noise voltage
Total harmonic distortion
Channel separation
-2.0
1.5
0.8
10
10
0.05
-70
DC CHARACTERISTICS OF DIGITAL BLOCK
SYMBOL
V
IL
V
IH
I
IL
I
IH
TEST CONDITIONS
Data, clock pin
V
I
=0
V
I
=5V
Data, clock pin
MIN
0
0.8×V
CC
-10
TYP
MAX
UNIT
0.2×V
CC
V
V
CC
V
10
μA
10
μA
PARAMETER
"L" level input voltage
"H" level input voltage
"L" level input current
"H" level input current
AC CHARACTERISTICS OF DIGITAL BLOCK
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Cycle time of clock
t
cr
V
DD
=5V
4
μs
Pulse width of clock ("H" level)
t
WHC
V
DD
=5V
1.6
μs
Pulse width of clock ("L" level)
t
WLC
V
DD
=5V
1.6
μs
Clock rising time
t
r
V
DD
=5V
0.4
μs
Clock falling time
t
f
V
DD
=5V
0.4
μs
Data setup time
t
SD
V
DD
=5V
0.8
μs
Data hold time
t
HD
V
DD
=5V
0.8
μs
Note: UTC products on power start, DATA conversion or IC first start are all without delay time. When DATA reading
is completed, the output immediately respond.
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RELATIONSHIP BETWEEN DATA AND CLOCK
CMOS IC
CLOCK
DATA
D0
D1
D2
D3
Reads data signal at the rising edge of clock signal
SYSTEM CONFIGURATION
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CMOS IC
CLOCK AND DATA TIMING
DATA INPUT FORMAT
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