Sharp XL-MP80H Service Manual page 46

XL-MP80H/MP80E
IC351 VHILC72723D-1:RDS (LC72723D)
Vdda
REFERENCE
VOLTAGE
Vssa
ANTIALIASING
MPXIN
FILTER
TEST TEST
VREF 1
2
MPXIN
Vdda 3
4
Vssa LC72723
LC72723M
FLOUT
5
CIN 6
TEST
7
XOUT 8
CIN
FLOUT
VREF
VREF
57kHz
BPF
SMOOTHING
(SCF)
FILTER
CLK(4.332MHz)
OSC
XIN
XOUT
Figure 3 BLOCK DIAGRAM OF IC
16 RDS-ID/READY
15
RDCL
14 RDDA
13
RST
MODE
12
11 Vddd
Vssd
10
9 XIN
PLL
RECOVERY
(57kHz)
(1187.5Hz)
DECODER
8 – 2
Vddd
CLOCK
Vssd
DATA
RDDA
RDCL
RAM
MODE
(128 bits)
RST
RDS-ID/
RDS-ID
READY
DETECT