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TUNER BOARD
U902: LC72723M
Vdda
3
REFERENCE
VOLTAGE
Vssa
4
MPXIN
ANTIALIASING
2
FILTER
TEST
TEST
7
TUNER BOARD
U903: LC7218
XIN
1
XOUT
24
FMIN
19
AMIN
18
CE
2
DI
3
CL
4
D0
5
V REF
FLOUT
CIN
1
5
6
V REF
57kHz
BPF
SMOOTHING
(SCF)
FILTER
CLK(4.332MHz)
OSC
9
X IN
REFERENCE
DIVIDER
1
SWALLOW COUNTER
2
1/16, 1/17 4 BIT
12-BIT PROGRAMMABLE
SHIFT REGISTER
LATCH
9
10
11
OUT0 OUT1
OUT2 OUT3 OUT4 OUT5 OUT6
+
PLL
_
(57kHz)
8
X OUT
SYC
6
PHASE DETECTOR
CHARGE PUMP
DIVIDER
UNIVERSAL
COUNTER
12
13
14
17
IN0
50
CLOCK
RECOVERY
(1187.5Hz)
DATA
DECODER
RAM
(128bits)
RDS-ID
DETECT
21
PD1
PD2
22
HCTR
16
15
LCTR
20
V
DD
23
V
SS
7
8
IN1
Vddd
11
Vssd
10
RDDA
14
RDCL
15
MODE
12
RST
13
RDS-ID/READY
16
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