Denon DRA-CX3 Service Manual page 15

QQ NJM7812FA(SS)-#4MS (IC202)
3 7 63 1515 0
GP1UM271XK (IC503)
LC72722PM-TLM-E (IC201)
Pin Assignment
TE
L 13942296513
Block Diagram
+5V
Vdda
Vssa
MPXIN
DO
CL
DI
CE
T1
www
T2
T3 to T7
.
http://www.xiaoyu163.com
Head
Amp
V REF
MPXIN
Vdda
Vssa
FLOUT
CIN
T1
T2
T3
T4
T5
X OUT
V REF
FLOUT
REFERENCE
VOLTAGE
57 kHz
BPF
ANTIALIASING SMOOTHING
(SCF)
FILTER
RAM
CCB
(24 BLOCK DATA)
MEMORY CONTROL
TEST
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y
i
http://www.xiaoyu163.com
2 9
8
Limiter Detector &
BPF Integrator
Amp Comparator
1 24 SYR
2 23 CE
3 22 DI
4 21 CL
5 20 DO
Q Q
3 6 7 1 3 1 5
6 19 RDS-ID
7 18 SYNC
8 17 T7
9 16 T6
10 15 Vssd
11 14 Vddd
12 13 X IN
Top view
CIN
+
PLL
-
(57 kHz)
V REF
FILTER
ERROR CORRECTION
(SOFT DECISION)
CLK(4.332 MHz)
OSC/DIVIDER co
.
X IN X OUT
15
DRA-CX3
9 4 2 8
Hysteresis
Comparator
GND Vcc Vout
0 5 8 2 9 9 4 2 8
CLOCK
RECOVERY
(1187.5 Hz)
DATA
DECODER
SYNC/EC CONTROLLER
m
SYNC SYNC
DETECT-1 DETECT-2
9 9
9 9
+5V
Vddd
Vssd
RDS-ID
SYNC
SYR