UTC-IC UTCTA8207K

UTC TA8207K
LINEAR INTEGRATED CIRCUIT
LOW FREQUENCY POWER
AMPLIFIER
DESCRIPTION
The UTC TA8207K is an audio power IC with built-in two
channels developed for portable radio cassette tape recorder
with power ON/OFF switch.
Because of the parts reduction and SIP (Single inline
package), space merit is remarkable.
Thermal shut down protection circuit is built in.
FEATURES
*High Power : POUT=2.5W / CH (Typ.)
(Vcc=9V, RL=4Ω, f=1KHz, THD=10%)
: POUT=4.6W / CH (Typ.)
(Vcc=12V, RL=4Ω, f=1KHz, THD=10%)
*Low Popping Noise at Power ON
*Small Quiescent Current : ICCQ=21mA (Typ.)
(Vcc=9V, VIN=0)
*Soft Clip
*Built-in Thermal Shut Down Protection Circuit
*Bast for Supply Voltage 9V, 12V
*Operation Supply Voltage Range : Vcc=6-15V
FSIP-12H
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER
Supply Voltage
Output Current (Peak / CH)
Power Dissipation
SYMBOL
VALUE
UNIT
Vcc
20
V
Io(peak)
2.5
A
PD
12.5
W
Operating Temperature
Topr
-20 to + 75
°C
Storage Temperature
Tstg
-55 to + 150
°C
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R107-013,A
UTC TA8207K
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS
(Vcc=9V, RL=4Ω, Rg=600Ω, f=1kHz, Ta=25°C, unless otherwise specified)
PARAMETER
Quiescent Current
SYMBOL
TEST CONDITIONS
ICCQ
Output Power
Total Harmonic Distortion
Voltage Gain
MIN
Vin=0
MAX
UNIT
21
45
mA
POUT(1)
THD=10%
POUT(2)
Vcc=12V,THD=10%
4.6
POUT=0.4W / ch
0.2
1.0
%
45
47
dB
THD
GV(1)
2.0
TYP
Rf=120Ω
2.5
43
W
W
VOUT=0.775Vrms
GV(2)
Input Resistance
Rf=0, VOUT=0.775Vrms
RIN
Output Noise Voltage
VNO
Rg=10kΩ
56.5
dB
30
kΩ
0.3
1.0
mVrms
BW=20Hz ~ 20kHz
Ripple Rejection Ratio
R.R.
Rg=600Ω
52
dB
50
dB
Fripple=100Hz
Cross Talk
C.T.
Rg=600Ω, Amp1<->2
VOUT=0dBm, f=1kHz
Input Offset Voltage
V6,V7
30
Stand-by Current
SW1->OFF
60
mV
µA
1
TYPICAL DC VOLTAGE OF EACH TERMINAL (Vcc=9V, Ta=25°C)
TERMINAL NO.
DC Voltage
UTC
1
2
3
4
5
6
7
8
9
10
11
12
8.7
4.5
Vcc
5.0
0.7
0.03
0.03
0.7
GND
4.5
8.7
Vcc
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R107-013,A
UTC TA8207K
LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT
REMARK 1 : This IC can be used without coupling capacitor (CIN). If volume slide noise occurred by input offset
voltage is undesirable, it needs to use the capacitor (CIN).
REMARK 2 : The condenser between the pin3 and the GND (C11) is for reducing pop noise when the power
ON/OFF switch (SW1) is set to ON/OFF.
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R107-013,A