Samsung MAX-632P - Page 50

32
OUT1 OUT2
VCC2
810 9 7
P1 P2 VCC1
4
V2
6
IN2IN1
GND
5
1
LB1641
Input logic circuit
Predriver
LB1641/BA6209
1 2 3 4 5
6 7
8
9
10
12 1113
14
15
16
17
1819
2 0
LPF
OUTPUT2
LPF28 V
REF
RIPPLE
DE-EMPHA
CTL
DE-EMPHA
OUT2
DE-EMPHA
IN2
BUFFER
OUT2
INPUT2
LPF2 LPF1
GND LPF
OUTPUT1
LPF1B MUTE
CONTROL
INPUT
DE-EMPHA
CONTROL
INPUT
DE-EMPHA
CTL
DE-EMPHA
OUT1
DE-EMPHA
IN1
BUFFER
OUT1
INPUT1
1/2Vcc-AMP
Vcc
DE-AMP2 DE-AMP1
BUFFER2 BUFFER1
MUTE
SW
DE-EM
SW
28 27 26 25 24 23 22 21 20 19 18 17 16 15
1 2 3 4 6 7 8 9 10 11 12 13 14
LEVEL
SHIFT
LEVEL
SHIFT
BUY
10K
10K
REGULATOR
10K
MUTE
50K
50K 10K
LEVEL
SHIFT
LEVEL
SHIFT
10K
BUY
T S D
10K
BUY
5
KA9258 : NIC9258
LB1641/BA6209(MOTOR DRIVER) : SIC1,SIC2,SIC3,NIC1641
KA9270 : NIC9270
9-3-2 CD
Samsung Electronics
9-9
Block Diagrams
TR
1
E
* NOTE : KSB564 = ‘EBC’ TYPE
C
B
2
3
KSR1003
A928