A6283L-F12-T [UTC]
4.6W DUAL AUDIO POWER AMPLIFIER; 4.6W双路音频功率放大器
| 型号： | A6283L-F12-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | 4.6W DUAL AUDIO POWER AMPLIFIER |
| 文件： | 总7页 (文件大小：293K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
A6283
LINEAR INTEGRATED CIRCUIT
4.6W DUAL AUDIO POWER
AMPLIFIER
ꢀ
DESCRIPTION
UTC A6283 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.
Thermal shut down protection circuit is built in.
FSIP-12H
ꢀ
FEATURES
* High Power
* POUT = 2.5W/CH (Typ.)
: (VCC = 9V, RL = 4Ω, f = 1kHz, THD = 10%)
OUT = 4.6W/CH (Typ.)
: (VCC = 12V, RL = 4Ω, f = 1kHz, THD = 10%)
*Pb-free plating product number: A6283L
P
* Low popping noise at power ON
* Small Quiescent Current
: IQ = 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
ꢀ ORDERING INFORMATION
Order Number
Package
Packing
Tube
Normal
Lead Free Plating
A6283L-F12-T
A6283-F12-T
FSIP-12H
A6283L-F12-T
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) T: Tube
(2) F12: FSIP-12H
(3) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw
1 of 7
Copyright © 2005 Unisonic Technologies Co., Ltd
QW-R107-047,A
A6283
LINEAR INTEGRATED CIRCUIT
ꢀ
PIN DESCRIPTION (TOP VIEW)
V
B.S.2
OUT-2
Power-GND
NF2
CC
12
11
10
9
8
7
IN-2
6
Pre-GND
IN-1
NF1
RIPPLE
OUT-1
B.S.1
5
4
3
2
1
FSIP-12H
UNISONIC TECHNOLOGIES CO., LTD
2 of 7
QW-R107-047,A
www.unisonic.com.tw
A6283
LINEAR INTEGRATED CIRCUIT
ꢀ
ABSOLUTE MAXIMUM RATINGS (Ta = 25℃)
PARAMETER
SYMBOL
VCC
RATINGS
20
UNIT
V
Supply Voltage
Output Current (Peak/CH)
Power Dissipation
IO(PEAK)
PD
2.5
A
12.5
W
Junction Temperature
Operating Temperature
Storage Temperature
TJ
+125
°C
°C
°C
TOPR
TSTG
-20~ +75
-55~+150
Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ꢀ
TYPICAL DC VOLTAGE OF EACH TERMINAL (VCC = 9V, Ta = 25℃)
TERMINAL NO.
DC VOTAGE (V)
1
2
3
4
5
6
7
8
9
10
11
12
8.2
4.5
8.9
0.6
0.01 GND 0.01
0.6
GND
4.5
8.2
VCC
ꢀ
ELECTRICAL CHARACTERISTICS
(Ta = 25℃, VCC= 6V, RG = 600Ω, RL = 10kΩ, f = 1kHz, unless otherwise specified.)
PARAMETER
Quiescent Current
SYMBOL
IQ
TEST CONDITIONS
MIN TYP MAX UNIT
VIN = 0
20
20
45
60
mA
mV
Input Offset Voltage
V5, V7
POUT(1) THD = 10%
OUT(2) THD = 10%, VCC = 12V
2.0
43
2.5
4.6
45
Output Power
W
P
GV(1) RF = 82Ω, VOUT = 0dBm
47
Voltage Gain
dB
GV(2) RF = 0, VOUT = 0dBm
56
Output Noise Voltage
Input Resistance
eN
RIN
RG = 10kΩ, BW = 20Hz~20kHz
0.3
30
1.0
mVRMS
kΩ
RG = 600Ω, VRIP =0.2VRMS
Ripple Rejection Ratio
RR
50
dB
f
RIP = 100Hz,
RG = 600Ω, Amp1
OUT = 0dBm, fRIP = 1kHz,
2
Cross Talk
C.T
60
dB
%
V
Total Harmonic Distortion
THD POUT = 1W/CH
0.2
1.0
UNISONIC TECHNOLOGIES CO., LTD
3 of 7
QW-R107-047,A
www.unisonic.com.tw
A6283
LINEAR INTEGRATED CIRCUIT
ꢀ
TEST CIRCUIT & BLOCK DIAGRAM
VCC
C10
2200µF
VCC
B.S.1
C4
* CIN
+
IN1
100µF
OUT1
IN - 1
+
+
-
ch - 1
OUT - 1
NF1
30O
C8
20kO
RF1
1000µF
RL
82O
C6
0.15µF
C1
47µF
Ripple
Bias Circuit Thermal Shut
Down Protection Circuit
+
100µF
C3
220µF
-
* CIN
IN2
+
C5
100µF
OUT2
IN - 2
+
+
ch - 2
-
OUT - 2
30O
NF2
C9
1000µF
B.S.2
RF2
82O
RL
C2
C7
47µF
0.15µF
20kO
Pre - GND
Power - GND
* This IC can be used without coupling capacitor (CIN). If volume slide noise occurred dy input offset voltage is
undesirable, it needs to use the capacitor (CIN).
UNISONIC TECHNOLOGIES CO., LTD
4 of 7
QW-R107-047,A
www.unisonic.com.tw
A6283
LINEAR INTEGRATED CIRCUIT
ꢀ
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.
RF+R1+R2
GV = 20 log
RF+R1
When RF = 0
When RF = 82Ω
GV = 56dB (Typ.)
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.
INPUT
+
-
5/7
4/8
2/10
AMP
RF
OUTPUT
R1
30Ω
R2
20kΩ
Fig.1.
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.
UNISONIC TECHNOLOGIES CO., LTD
5 of 7
QW-R107-047,A
www.unisonic.com.tw
A6283
LINEAR INTEGRATED CIRCUIT
ꢀ
APPLICATION INFORMATION AND APPLICATION METHOD (Cont.)
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 ⑤ and ⑦, max 60mV offset voltage is produced.
Application after checking volume slide noise is recommended.
For cutting the volume slide noise, inset the input capacitor: CIN in series to interrupt the DC component.
OUTPUT
20kΩ
Q2
Q3
2/10
to DRIVER
INPUT
+
Q1
5/7
6
CIN
30Ω
30kΩ
to BIAS
Pre-GND
4/8
RF
47μF
Fig.2.
4. OSCILLATION PERVENTIVE 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 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 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.
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 = 4Ω, f = 1kHz : Enough care must be taken for this phenomenon.
UNISONIC TECHNOLOGIES CO., LTD
6 of 7
QW-R107-047,A
www.unisonic.com.tw
A6283
LINEAR INTEGRATED CIRCUIT
ꢀ
TYPICAL CHARACTERISTICS
POUT - VCC
PD(MAX) - VCC
10
8
12
10
f = 1kHz
THD = 10%
f = 1kHz
THD = 10%
RL = 3Ω
RL = 3Ω
8
6
6
RL = 2Ω
RL = 2Ω
4
RL = 4Ω
4
2
2
RL = 4Ω
0
0
0
4
6
12
16
20
24
0
2
4
6
8
10
12
14 16
Supply Voltage, VCC (V)
Supply Voltage, VCC (V)
PD - POUT
PD - POUT
5
4
3
2
5
4
3
2
RL = 2Ω
RL = 4Ω
f = 1kHz
VCC = 9V
f = 1kHz
VCC = 12V
RL = 3Ω
RL = 4Ω
VCC = 9V
1
0
1
0
VCC = 6V
0
1
2
3
4
5
6
0
1
2
3
4
5
6
Output Power, POUT (W)
Output Power, POUT (W)
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
7 of 7
QW-R107-047,A
www.unisonic.com.tw
相关型号：
A6285
16-Channel Constant-Current Latched LED Driver with Open LED Detection and Dot Correction
ALLEGRO
A6285EET-T
16-Channel Constant-Current Latched LED Driver with Open LED Detection and Dot Correction
ALLEGRO
A6285EETTR-T
16-Channel Constant-Current Latched LED Driver with Open LED Detection and Dot Correction
ALLEGRO
©2020 ICPDF网 联系我们和版权申明