23
U903: LC7218
U902: LC72723M
1
XIN
REFERENCE
DIVIDER
SWALLOW COUNTER
1/16,1/17 4 BIT
12-BIT PROGRAMMABLE
DIVIDER
SHIFT REGISTER
LATCH
UNIVERSAL
COUNTER
1
2
PHASE DETECTOR
CHARGE PUMP
6
SYC
24
XOUT
19
FMIN
21
PD1
22
PD2
16
HCTR
18
AMIN
15
LCTR
2
CE
3
DI
4
CL
3
V
DD
4
V
SS
5
DO
9
OUT0
10
OUT1
11
OUT2
12
OUT3
13
OUT4
14
OUT5
17
OUT6
7
IN0
8
IN1
Vdda
3
REFERENCE
VOLTAGE
ANTIALIASING
FILTER
DATA
DECODER
VREF
1
VREF
FLOUT
5
CIN
6
PLL
(57kHz)
CLOCK
RECOVERY
(1187.5Hz)
+
_
Vddd
11
Vssd
10
RDDA
14
RDCL
15
MODE
12
RST
13
RDS-ID/READY
16
Vssa
4
MPXIN
2
TEST
7
TEST
57kHz
BPF
(SCF)
SMOOTHING
FILTER
OSC
CLK(4.332MHz)
9
XIN
8
XOUT
RDS-ID
DETECT
RAM
(128bits)