28
3-15. IC BLOCK DIAGRAMS
IC301 BU1924F-E2 (MAIN BOARD)
IC501 STK350-230 (MAIN BOARD)
ANALOG
DIGIT
AL
RCLK
NC
XO
XI
VSS2
T2
VDD2
T1
QUAL
RDA
T
VREF
MUX
VDD1
VSS1
VSS3
CMP
1
4
3
6
5
8
7
2
14
15
16
13
12 11 10
9
CLOCK
PLL 57kHz
RDS/ARI
COMPARATOR
8th SWITCHED
CAPACITOR
FILTER
ANTI-ALIASING
FILTER
BIPHASE
DECODER
PLL
1187.5Hz
DEFFERENTIAL
DECODER
TEST
1
2
3
4
5
6
7
8
9
TR3
R1
R2
TR4
TR6
TR7
R4
R9
TR5
TR1
TR2
R6
D4 D3
R7
R8
TR8
D1 D2
R5
R3
INPUT
NF
-VEOUT
+VEOUT
V
SS
GND
V
CC
SUB
PROTECTOR
DRIVE
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
PRE
DRIVE
PRE
DRIVE
BIAS CIRCUIT
REG
MUTE
+VOUT1
–VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
–VOUT2
+VOUT2
VCC1
VCC2
VEE
DRIVE
IC701, 702 µPC2581V (MAIN BOARD)
Содержание STR-DE445 - Fm Stereo/fm-am Receiver
Страница 14: ...STR DE445 DE545 SE501 14 14 3 7 SCHEMATIC DIAGRAM MAIN 2 3 SECTION ...
Страница 15: ...STR DE445 DE545 SE501 15 15 3 8 SCHEMATIC DIAGRAM MAIN 3 3 SECTION ...
Страница 18: ...STR DE445 DE545 SE501 18 18 3 11 PRINTED WIRING BOARD VIDEO KEY SECTION See page 7 for Circuit Boards Location ...
Страница 19: ...STR DE445 DE545 SE501 19 19 3 12 SCHEMATIC DIAGRAM VIDEO KEY SECTION See page 29 for IC Block Diagrams ...