UTC TA8207K LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R107-013,A
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 SYMBOL VALUE UNIT
Supply Voltage Vcc 20 V
Output Current (Peak / CH) Io(peak) 2.5 A
Power Dissipation PD 12.5 W
Operating Temperature Topr -20 to + 75 °C
Storage Temperature Tstg -55 to + 150 °C
UTC TA8207K LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 2
QW-R107-013,A
ELECTRICAL CHARACTERISTICS
(Vcc=9V, RL=4Ω, Rg=600Ω, f=1kHz, Ta=25°C, unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Quiescent Current ICCQ Vin=0 21 45 mA
Output Power POUT(1) THD=10% 2.0 2.5 W
POUT(2) Vcc=12V,THD=10% 4.6 W
Total Harmonic Distortion THD POUT=0.4W / ch 0.2 1.0 %
Voltage Gain GV(1) Rf=120Ω
VOUT=0.775Vrms 43 45 47 dB
GV(2) Rf=0, VOUT=0.775Vrms 56.5 dB
Input Resistance RIN 30 kΩ
Output Noise Voltage VNO Rg=10kΩ
BW=20Hz ~ 20kHz 0.3 1.0 mVrms
Ripple Rejection Ratio R.R. Rg=600Ω
Fripple=100Hz 52 dB
Cross Talk C.T. Rg=600Ω, Amp1<->2
VOUT=0dBm, f=1kHz 50 dB
Input Offset Voltage V6,V7 30 60 mV
Stand-by Current SW1->OFF 1µA
TYPICAL DC VOLTAGE OF EACH TERMINAL (Vcc=9V, Ta=25°C)
TERMINAL NO. 1 2 3 4 5 6 7 8 9 10 11 12
DC Voltage 8.7 4.5 Vcc 5.0 0.7 0.03 0.03 0.7 GND 4.5 8.7 Vcc
UTC TA8207K LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 3
QW-R107-013,A
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.
