CONTEK LAG665F Datasheet
LAG665F LINEAR INTEGRATED CIRCUIT
RADIO AND CASSETTE RECORDER
CIRCUIT
DESCRIPTION
The ContekLAG665F is a monolithic integrated circuit,
designed for portable radio cassette.
FEATURES
*1-Chip stereo tape recorder with motor speed controller.
*Operating supply voltage range: Vcc=2~5V
*Good volume control
SOP-28
BLOCK DIAGRAM
Contek
1 2
1/2 Vcc
25 24 23 22 21 19 20 18 14 17 16 15 13
2627
Pre Amp
Pre Amp
Bias
Control
Attenuator
V/I
Attenuator
6 7
Power Amp
1/2 Vcc
Power
Amp
8283 4 5
9 11 10 12
Control
Power Amp
Motor
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
1
LAG665F LINEAR INTEGRATED CIRCUIT
PIN CONFIGURATION
V BPRE
1IN+
1IN-
PRF
INF
IOUT
ATT1
CON VOL
V REF
1OUT P
GND P
VBP
GND MD
V CON
MO ON
PRE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Contek
LAG665F
28
27
26
25
24
23
22
21
20
19
18
17
16
15
GND
2IN+
2IN-
2NF
2OUT
ATT2
PRE OFF
V CCPRE
V CC
2OUT P
MO OFF
V CCMO
CON T
CON S
PRE
PRE
PRE
PIN NO. SYMBOL DESCRIPTION PIN NO. SYMBOL DESCRIPTION
1VBPRE Pre Amp Bias Voltage 15 CONS Speed Control
2 1 IN+ Channel 1 + Input 16 CONT Torqul Control
3 1 IN - Channel 1 - Input 17 VCCMO Motor Power Control
41NFPRE Feedback 1 18 MOOFF Motor Forced Stop
51OUTPRE Pre Amp Output 1 19 2 OUTP Power Amp Output 2
6 ATT 1 Attenuator 1 20 VCC Supply Voltage
7 CONVOL Volume Control 21 VCCPRE Supply Voltage
8VREF Reference Voltage 22 PREOFF Pre Amp Off
91OUTP Power Amp Output 1 23 ATT 2 Attenuator 2
10 GNDP Power GND 24 2 OUTPRE Pre Amp Output 2
11 VBP Power Amp Bias
25 2 NFPRE Feedback 2
Voltage
12 GNDMD Motor GND 26 2 IN- Channel 2 - Input
13 VCON Motor Control Voltage 27 2 IN+ Channel 2 + Input
14 MOON Motor Forced Start 28 GNDPRE Pre GND
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
2
Loading...