UTCTA7368P 查看數據表（PDF） - Unisonic Technologies
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UTCTA7368P Datasheet PDF : 3 Pages
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UTCTA7368P LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUN RATINGS (Ta=25°C)
PARAMETER
SYMBOL
Supply Voltage
VCC
Power Dissipation
PD
Operating Temperature
TOPR
Storage Temperature
TSTG
Note: Derated Ta>25°C, in the proportion of 7.2mW/°C
VALUE
14
900
-20 ~ 75
-55 ~ 150
UNIT
V
mW
°C
°C
ELECTRONIC CHARACTERISTICS(Ta=25°C, Vcc=6V, f=1kHz, Rg=600Ω,RL=4Ω, unless otherwise
specified)
PARAMETER
Quiescent Circuit
Current
Voltage Gain
Output Power
Total Harmonic
Distortion
Output Noise Voltage
Ripple Rejection
Input Resistance
SYMBOL
ICCQ
GV
Pout
THD
Vno
RR
Rin
TEST CONDITIONS
VCC=3V,Vin=0
VCC=6V,Vin=0
VCC=9V,Vin=0
Vin=0.5mVrms
VCC=3V,RL=4Ω,THD=10%
VCC=6V,RL=4Ω,THD=10%
VCC=6V,RL=8Ω,THD=10%
VCC=9V,RL=8Ω,THD=10%
VCC=9V,RL=16Ω,THD=10%
Pout=100mW
MIN
37
500
300
800
450
Rg=10kΩ,BPF=20Hz~20kHz
fr=100Hz,Vr=0.3Vrms,Crip=0
TYP
5.5
6.6
7.5
40
120
720
450
1100
610
0.3
MAX
43
1
UNIT
mA
dB
mW
%
0.2
0.5 mVrms
25
dB
27
kΩ
TERMINAL DC VOLTAGE
Pin No.
1
2
3
4
5
Value(V)
0
2.4
0.62
0.64
0
6
7
8
9
0
2.61
NC
6
PRECAUTION FOR APPLICATION
1. Input stage (Figure 1)
The input stage of power amplifier is comprised of a PNP differential pair( Q2 and Q3) preceded by a PNP emitter
follower(Q1) which allows DC referencing of the source signal to GND. This eliminates the need for an input coupling
capacitor. However, in case the brush noise of volume becomes a problem, provide serially a coupling capacitor to
the input side.
2. Adjustment of the voltage gain (figure 2)
The voltage gain is fixed at Gv=40dB by the resistors( R4 and R5) in IC. Its reduction is possible through adding Rf as
shown in Figure 2. In this case, the voltage gain is obtained by the following equation: Gv=20log(R5+R4+Rf)/(R4+Rf).
It is recommended to use this IC with the voltage gain of Gv=28dB or over.
UTC UNISONIC TECHNOLOGIES CO., LTD. 2
QW-R107-009,A
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