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4-23. IC BLOCK DIAGRAMS
IC1206 NJM2103M (DIGITAL BOARD)
1
2
3
4
5
6
7
8
V+
VSB/SESIN
VSA
RESET
GND
OUTC
VSC
CR
VREF
+
–
–
+
–
+
–
+
Q
R S
IC1 BU1924F (TUNER BOARD)
ANALOG
DIGITAL
RCLK
NC
XO
XI
VSS2
T2
VDD2
T1
QUAL
RDAT
VREF
MUX
VDD1
VSS1
VSS3
CMP
1 43 65 872
141516 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