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 : P
OUT
=2.5W / CH (Typ.)
(Vcc=9V, RL=4
, f=1KHz, THD=10%)
: P
OUT
=4.6W / CH (Typ.)
(Vcc=12V, RL=4
, f=1KHz, THD=10%)
*Low Popping Noise at Power ON
*Small Quiescent Current : I
CCQ
=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, R
L
=4
, Rg=600
, f=1kHz, Ta=25
C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Quiescent Current
I
CCQ
Vin=0
21
45
mA
Output Power
P
OUT(1)
THD=10%
2.0
2.5
W
P
OUT(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=120
V
OUT
=0.775Vrms
43
45
47
dB
GV(2)
Rf=0, V
OUT
=0.775Vrms
56.5
dB
Input Resistance
R
IN
30
k
Output Noise Voltage
VNO
Rg=10k
BW=20Hz ~ 20kHz
0.3
1.0
mVrms
Ripple Rejection Ratio
R.R.
Rg=600
Fripple=100Hz
52
dB
Cross Talk
C.T.
Rg=600
, Amp1<->2
VOUT=0dBm, f=1kHz
50
dB
Input Offset Voltage
V6,V7
30
60
mV
Stand-by Current
SW1->OFF
1
A
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.
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