KIA6283K Datasheet PDF - KEC

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KIA6283K
KEC

Part Number KIA6283K
Description 4.6W DUAL AUDIO POWER AMPLIFIER
Page 7 Pages


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SEMICONDUCTOR
TECHNICAL DATA
KIA6283K
BIPOLAR LINEAR INTEGRATED CIRCUIT
4.6W DUAL AUDIO POWER AMPLIFIER
KIA6283K is an audio power IC with built-in two channels developed
for portable radio cassette tape recorder. Because of the parts reduction
and SIP (Single In line Package), space merit is remarkable.
Themal shut down protection circuit is built in.
A
F
S
Q
B
FEATURES
High Power
POUT=2.5W/CH (Typ.)
: (VCC=9V, RL=4 , f=1kHz, THD=10%)
POUT=4.6W/CH(Typ.)
: (VCC=12V, RL=4 , f=1kHz, THD=10%)
Low popping noise at power ON
Small Quiescent Current
: ICCQ=19mA (Typ.) (VCC=9V, VIN=0)
Soft Clip
Built-in thermal shut down protection circuit
Best for supply voltage 9V, 12V
Operation supply voltage range : VCC=6 15V.
DETAIL "A"
P
d
D1
d
D2
DETAIL "A"
T
DIM MILLIMETERS
A 29.7+_ 0.2
B 4.0 +_ 0.2
D1 0.6+_ 0.1
D2 0.7+_ 0.1
d 0.5+_ 0.1
F 28.0+_ 0.2
G 0.5+_ 0.2
H1 8.5+_ 0.3
H2 15.0+_ 0.3
L1 2.5+_ 0.2
L2 5.5+_ 0.2
P 2.54
Q R1.6
R 0.4
S 22.0+_ 0.2
T 0.4+0.1/-0.05
SSIP-12
MAXIMUM RATING (Ta=25 )
CHARACTERISTIC
SYMBOL
Supply Voltage
Output Current (Peak/CH)
Power Dissipation
Operating Temperature
Storage Temperature
VCC
IO(peak)
PD
Topr
Tstg
RATING
20
2.5
12.5
-20 75
-55 150
UNIT
V
A
W
1994. 10. 31
Revision No : 0
1/8



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KIA6283K
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, VCC=9V, f=1kHz, Rg=600 , RL=4 , Ta=25 )
CHARACTERISTIC
SYMBOL
TEST
CIRCUIT
TEST CONDITION
Quiescent Current
ICCQ
- VIN=0
Output Power
POUT (1)
POUT (2)
- THD=10%
- THD=10%, Vcc=12V
Total Harmonic Distortion
THD
- POUT=1W/CH
Voltage Gain
GV (1)
GV (2)
- Rf=82 , VOUT=0dBm
- Rf=0, VOUT=0dBm
Input Resistance
RIN -
-
Output Noise voltage
Ripple Rejection Ratio
Cross Talk
Input Offset Voltage
VNO
R.R
C.T
V5,V7
- Rg=10k , BW=20Hz 20kHz
-
Rg=600 , VRIP=0.2Vrms
fRIP=100Hz
-
Rg=600 , Amp 1 2
VOUT=0dBm, f=1kHz
--
MIN. TYP. MAX. UNIT
- 19 45 mA
2.0 2.5
- 4.6
-
-
W
-
0.2 1.0
%
43 45 47
dB
- 56 -
- 30 - k
- 0.3 1.0 mVrms
- 54 - dB
- 60 - dB
- 20 60 mV
TYPICAL DC VOLTAGE OF EACH TERMINAL (VCC=9V, Ta=25 )
TERMINAL NO.
1 2 3 4 5 6 7 8 9 10 11 12
DC VOLTAGE (V)
8.2 4.5 8.9 0.6 0.01 GND 0.01 0.6 GND 4.5 8.2 VCC
1994. 10. 31
Revision No : 0
2/8



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KIA6283K
BLOCK DIAGRAM/TEST CIRCUIT
12
* CIN
IN-1
IN1
5
+
Rf1 NF1
4
ch-1
-
8230
20K
B.S.1
1
2
Ripple
3
BIAS CIRCUIT
THERMAL SHUT DOWN
PROTECTION CIRCUIT
* C IN
IN2
IN-2 7 +
Rf2 NF2
ch-2
8-
8230
20k
10
11
B.S.2
6
Pre-GND
9
Power-GND
VCC
C8
1000uF
OUT-1
C9
1000uF
OUT-2
* This IC can be used without coupling capacitor ( CIN ). IF volume slide noise
occured by input offset voltage is undesirable, it needs to use the capacitor (CIN ).
1994. 10. 31
Revision No : 0
3/8



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KIA6283K
APPLICATION INFORMATION AND APPLICATION METHOD
1. ADJUSTMENT OF VOLTAGE GAIN
The voltage gain Gv is obtained as follows by R1, R2 and Rf in Fig. 1.
GV = 20 log
Rf+R1+R2
Rf+R1
Rf
When Rf=0, Gv=56dB(Typ.)
When Rf=82 , Gv=45dB(Typ.)
By increasing Rf, reduction of Gv is Possible. However, since the feedback
increase is liable to produce oscillation, it is recommended to use this at 40dB or over.
5/7 INPUT
R1
4/8 30
+
AMP
-
R2
20k
Fig 1.
2/10
OUTPUT
2. THERMAL SHUT-DOWN CIRCUIT
The thermal shut-down circuit is built in for the purpose of preventing the destruction of IC due to the abnormal temperature rise
when the heat radiation is insufficient. The operation temperature is set at radiation Fin temperature 175 (Typ.) At this temperature
or over the bias is interrupted to prevent the destruction of IC.
3. INPUT STAGE
The input circuit of this IC is as shown in Fig. 2. PNP TR:Q1 is provided in
the input circuit so as to make its usage possible without the input coupling
capacitor. However, at pins and , max 60mV offset voltage is produced.
Application after checking volume slide noise is recommended.
For cutting the volume slide noise, insert the input capacitor :
CIN in series to interrupt the DC compornent.
Q2 Q3
OUTPUT
20k
2/10
4. OSCILLATION PREVENTIVE MEASURES
For oscillation preventive capacitor C6 and C7 between
the output terminal and GND, it is recommended to use
polyester film capacitor having good characteristics for
INPUT
5/7 Q1
CIN
temperature and for high frequency.
Since the characteristics of the capacitor is liable to be
influenced by the temperature, use this capacitor after the temperature
6
Pre-GND
test to check the oscillation allowance. In addition, as the position
of the electrolytic capacitor has a remarkable influence on the oscillation,
connect C10 to VCC at the nearest possible position from power GND.
At using this application with the voltage gain reduced, oscillation is liable
to be produced. Apply the capacitor after checking enough for its capacity,
type and mounting position.As the oscillation allowance varies according to the printed
pattern layout, the standard printd board of KEC is recommended to be referred to for design it.
to DRIVER
to BIAS
4/8
Fig. 2
5. INPUT VOLTAGE
When the excessive signal is input, turning-up is produced in the clip waveform.
The turning-up point is VIN=300mVrms(Typ.) : VCC=9V, RL=4 , f=1kHz : Enough care must be taken for this phenomenon.
1994. 10. 31
Revision No : 0
4/8



KIA6283K datasheet pdf
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KIA6283K 4.6W DUAL AUDIO POWER AMPLIFIER KIA6283K
KEC
KIA6283K pdf

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