Document
UTC1316
DUAL CHANNEL AUDIO POWER AMPLIFIER
DESCRIPTION
LI NEAR I NTEGRATED CI RCUI T
The UTC1316 is a monolithic integrated circuit designed for the audio amplifier part in tap recorders and radio.
FEATURES
*Wide operating voltage (3V to 16V) *Low quiescent current *Low Harmonic distortion *Large output power(2W,maximum) *Fine ripple rejection characteristic
DIP-14H
BLOCK DIRGARM
GND CH2 INPUT CH2 CH2 FEED COMPEN VCC BACK SATION CH2 BOOT STRAP CH2 OUTPUT
14
13
12
11
10
9
8
AMP2
H/S
AMP1
1
RIPPLE FILTER
2
3
4
5
6
7
CH1 CH1 CH1 FEED COMPEN INPUT BACK SATION
CH1 CH1 BOOT NC OUTPUT STRAP
ABSOLUTE MAXIMUM RATINGS(Ta=25°C )
Characteristic
Supply Voltage(No signal) Supply Voltage(operating) Operating Temperature Storage Temperature Power dissipation
Symbol
Vcc Vcc Topr Tstg PD
Value
18 16 -20 to +75 -40 to 150 2.0
Unit
V V °C °C W
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UTC1316
ELECTRICAL CHARACTERISTICS
Characteristic
Quiescent Current Voltage Gain
LI NEAR I NTEGRATED CI RCUI T
Symbol
ICCQ Gv
(Ta=25°C,Vcc=9V,RB=33Ω,f=1KHz,RL=8Ω,unless otherwise specified)
Test Condition
No Signal Po=0.25W,Rf=33Ω Po=0.25W,Rf=120Ω Vcc=12V,RL=8Ω,THD=10% Vcc=9V,RL=4Ω,THD=10% Vcc=9V,RL=8Ω,THD=10% Vcc=6V,RL=4Ω,THD=10% Vcc=6V,RL=8Ω,THD=10% Po=0.5W,Rf=33Ω Po=0.5W,Rf=120Ω Rg=10kΩ Rg=0,frip=100Hz,Vrip=0.3V Rg=0,Po=0.25W Po=0.25W
Min
Typ.
10 44 34 2 1.6 1.2 0.7 0.5 0.8 0.4 0.6 50 55 0 5
Max
Unit
mA dB dB
Output Power
Po
W
Total Harmonic distortion Noise output voltage Ripple Rejection Ratio Channel Separation Channel Balance Input impedance
THD Vno RR CS CB Ri
-2
2
% % mV dB dB dB MΩ
TYPICAL APPLICATION CIRCUIT
INPUT 2 Vcc
C6 100µF C1 100µF (Rf) R1 33Ω C2(Cb) 22pF C7 0.1µF #C4 0.01µF C3 100µF C5 220µF R2 1Ω
14
13
12
11
10
9
8
AMP2
H/S
AMP1
1
C8 47µF
2
(Rf) R3 33Ω C9 100µF
3
4
5
6
C10 100µF
7
C13 220µF
INPUT 1
C11(Cb) 22pF
#C12 0.01µF R4 1Ω
YOUW ANG ELECTRONI CS CO. LTD
2
UTC1316
LI NEAR I NTEGRATED CI RCUI T
TYPICAL PERFORMANCE CHARACTERISTICS
Voltage Gain and THD vs frequency
60 6 Vcc=9v RL=8Ω Rf=33Ω 20
THD vs output power
Co=220µF
Gv
Cb=0 Cb=22pF 4
40
Total Harmonic Distortion ,THD(%)
Total Harmonic Distortion ,THD(%)
50
5
Voltage Gain Gv(dB)
10
Co=47µF 30 Vcc=9v RL=8Ω Rf=33Ω Vo=1Vrms 20
Cb=100pF 3
5
2
2
1
f=10kHz f=1kHz f=100kHz
0.5
10 THD 0 20 50 100 200 500 1k 2k 5k 10k 20k 50k
1
0.2 0 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5
frequency (Hz)
Output Power (W)
Supply Voltage vs. Quiescent Current
50 2
Output Power vs Supply Voltage
f=1kHz THD=10%
40
Quiescent Current, Icc(mA)
RL=4Ω
RL=8Ω
30
Output Power, Po(W)
1
RL=32Ω
Rg=0 20
10
0
4
8
12
16
20
0
4
8
12
16
20
Supply Voltage, Vcc(V)
Supply Voltage, Vcc(V)
5
Supply Voltage vs Power dissipation
50
Voltage gain and THd vs. feed back resistance
RL=8Ω f=1kHz Vo=1Vrms 2
4
40 Gv
Power Dissipation (W)
Voltage gain Gv(dB)
1 20
RL=4Ω 2
RL=8Ω
RL=32Ω 1 10 THD
0
4
.