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3544 Datasheet(PDF) 4 Page - Unisonic Technologies

Part # 3544
Description  HEADPHONE AMPLIFIER FOR CD-ROMS
PDF  9 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

3544 Datasheet(HTML) 4 Page - Unisonic Technologies

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UTC 3544
LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO. LTD
4
QW-R107-040,A
ELECTRICAL CHARACTERISTICS (Ta=25℃,Vcc=5.0V,R
L=32Ω,VIN= -6dBV, f=1kHz)
PARAMETER
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNIT
Quiescent current
IQ
VIN=0Vrms
4
7
10
mA
Mute pin control voltage
VTM
0.3
0.7
1.6
V
Voltage gain
Gvc
4
6
8
dB
Voltage gain difference between channels
△Gvc
-0.5
0
0.5
dB
Total harmonic distortion
THD
BW=20～20kHz
0.02
0.1
%
Rated output 1
Po1
RL=32Ω,THD<0.1%
25
31
mW
Rated output 2
Po2
RL=16Ω,THD<0.1%
50
62
mW
Output noise voltage
VNO
BW=20～20kHz,Rg=0Ω
-93
-85
dBV
Channel separation
CS
Rg=0Ω
82
90
dB
Mute attenuation
ATT
Rg=0Ω
70
80
dB
Ripple rejection
RR
fRR=100Hz,VRR= -20dBV
50
57
dB
MEASUREMENT CIRCUIT
8
7
65
12
34
BIAS
90K
90K
6dB
6dB
TSD
MUTE
+
+
OUT1
MUTE
IN1
GND
Vcc
OUT2
BIAS
IN2
V
V
SW5
VIN2
1
2
1μ
47μ
+
330μ
+
SW7
1
2
32
16
V7AC
+ CVcc
10μ
A
SW8B
I
Q
12
SW8A
VRR
Vcc
330μ
+
SW1
1
2
32
16
V1AC
VTM
SW3
VIN1
1
2
1μ



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