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PDF UA1029 Data sheet ( Hoja de datos )
| Número de pieza | UA1029 | |
| Descripción | LOW FREQUENCY POWER AMPLIFIER | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de UA1029 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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UNISONIC TECHNOLOGIES CO.,LTD.
UA1029
LINEAR INTEGRATED CIRCUIT
LOW FREQUENCY POWER
AMPLIFIER
DESCRIPTION
The UTC UA1029 is a low frequency power amplier and
developed for portable radio cassette tape recorder with power
ON/OFF switch.
The audio power IC has built-in two channels and thermal shut
down protection circuit.
FEATURES
* High Power
: POUT (1) = 2.5W (Typ.)
(VCC = 9V, RL = 4Ω, f = 1kHz, THD = 10%)
: POUT(2) = 4.6W (Typ.)
(VCC = 12V, RL = 4Ω, f = 1kHz, THD = 10%)
* Low Popping Noise at Power ON
* Small Quiescent Current
: IQ = 21mA (Typ.) (VCC = 15V, VIN = 0)
* Soft Clip
* Thermal Shut Down Protection
www.DataSheet4U.com
* Best for Supply Voltage 9V, 12V
* Operation Supply Voltage Range from 6V to 15V
HSIP-14
*Pb-free plating product number: UA1029L
PIN CONFIGURATION
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PIN NAME
B.S. 2
OUT 2
Vcc 1
OUT 1
B.S.1
Power-GND
Vcc 2
RIPPLE
NF1
IN 1
IN 2
NF 2
Pre-GND 1
Pre-GND 2
ORDERING INFORMATION
Ordering Number
Normal
Lead Free Plating
UA1029-H14-T UA1029L-H14-T
Package
HSIP-14
Packing
Tube
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co.,LTD.
1
QW-R107-033.B
1 page  
UA1029
APPLICATION INFORMATION
LINEAR INTEGRATED CIRCUIT
1. Adjustment of voltage gain
The voltage gain GV is obtained by R1, R2 and RF as below. By increasing RF, reduction of GV is possible. 40dB or
over in use is recommended.
RF + R1 + R2
GV = 20 log
RF+ R1
Sine oscillation is probable as a result of feedback in crease.
INPUT
10/11
Rf R1
9/12
+ CNF
45
47 F
+
AMP
-
R2
30k
OUTPUT
2/4
Fig.1
2. Input stage
The input circuit of this IC is as shown as below.
PNP Tr: TR1 is provided in the input circuit so as to make its usage possible without the input coupling capacitor.
However, at Pin 10 and Pin 11 max 60 mV offset voltage is produced.
Fig.2 illustrate the input circuit of UTC UA1029. A offset voltage of 60mV max is possible. TR1 is featured to
eliminate the usage of coupling capacitor.
OUTPUT
INPUT
TR2 TR3
30k
2/4
10/11
CIN
TR1
30k
13/14
GND
To DRIVER
45
NF
9/12
To BIAS
Rf
+ 47 F
Fig. 2
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5
QW-R107-033.B
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet UA1029.PDF ] | |
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