Philips MCM 275, Service Manual

Page: 19 / 53

BLOCK DIAGRAM - POWER AMPLIFIER
TDA1517
6-2 6-2
PINNING
SYMBOL PIN DESCRIPTION
MRO 1 m XOWLSDWKUHFWL¿HURXWSXW
MPTH 2 m XOWLSDWKGHWHFWRURXWSXW
TCON 3
WHVWFRQWUROLQSXWSLQ
OSCO 4
RVFLOODWRURXWSXW
OSCI 5
RVFLOODWRULQSXW
V
SSD
6 digital g
URXQG
0 V)
V
DDD
7 digital supply v ROWDJH 5 V)
DAVN 8 data availab OHRXWSXWDFWL ve LOW)
SDA 9 I
2
C-bus serial data I/O
SCL 10 I
2
C-bus ser LDOFOR c NLQSXW
PSWN 11 pause s ZLWFKRXWSXWDFWL ve LOW)
MAD 12 slav HDGGUHVV/6%LQSXW
AFIN 13 DXGLRVLJQDOLQSXW
V
DDA
14 DQDORJVXSSO\ v ROWDJH 5 V)
V
SSA
15
DQDORJ
g
URXQG
0 V)
MPX 16 multiple
[LQSXWVLJQDO
V
ref
17 ref
HUHQFH
v
ROWDJHRXWSXW
SCOUT 18
EDQGSDVV¿OWHURXWSXW
CIN 19 FRPSD r DWRULQSXW
LVIN 20 lev HOLQSXW
SYMBOL PIN DESCRIPTION
MRO
MPTH
TCON
OSCO
OSCI
VSSD
VDDD
SDA
SCL
LVIN
CIN
SCOUT
Vref
VSSA
VDDA
MPX
AFIN
MAD
1
2
3
4
5
6
7
8
9
10 11
12
20
19
18
17
16
15
14
13
MGK534
DAVN
PSWN
SAA6588T
PIN DESCRIPTION - RDS/RBDS PRE-PROCESSOR
SAA6588T
BLOCK DIAGRAM
mute/stand-by
switch input
MLC351
output 1
15 k Ÿ
15 k Ÿ
x 1
VA
stand-by
switch
VP
mute
switch
stand-by
reference
voltage
18 k Ÿ
18 k
Ÿ
2
k
Ÿ
60
k Ÿ
mute switch
Cm
power stage
4
8
mute switch
VA
VA
Cm
2
k Ÿ
60
k
Ÿ
power stage
6
2 7 5
SGND
signal
ground
PGND
output 2
non-inverting
input 1
non-inverting
input 2
9
supply voltage
ripple rejection
output
3
1
TDA1517
mute
reference
voltage
input
reference
voltage
VP
power
ground
(substrate)