– 38 –
• IC Block Diagrams
– MAIN Board –
IC10
TB2114FN (EL)
IC150
SAA6579T
VDD
SEEK/RECP
1
2
3 4
5
6
7
8
9
10
24 23
22
21 20
19
18
17
16
15
11 12
14 13
BUFFER
XTOUT
O
SC OUT
CE
DIN
CK
DOUT
SR
I/O-1
I/O-2
OUT-1
OUT-2
OUT-3
AM/FM IF
VDD
FM IN
AM IN
D-GND
FM CP OUT
VT
AM CP OUT
VCC
RF
A-GND
XTIN
BUS INTERFACE
I/O PORTS
OUT PORTS
OSC IN
OR
X'TAL OSC
ON/OFF
REFERENCE
COUNTER
PHASE
COMPARATOR
20BIT
IF COUNTER
2
MODULAS
PRESCALER
12BIT
PROGRAMABLE
COUNTER
AMP
AMP
AMP
+
–
RIPPLE
FILTER
18BIT
18BIT
22BIT
40BIT
SHIFT
RESISTER
REF
VCC
+
–
SIG
SEEK/RECP
4BIT
SWALLOW
COUNTER
PSC
N
DATA
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
QUALITY BIT
GENERATOR
OSCILLATOR
AND
DIVIDER
RECONSTRUCTION
FILTER
57KHz
BANDPASS
(8th ORDER)
ANTI-
ALIASING
FILTER
COSTAS LOOP
VARIABLE AND
FIXED DIVIDER
CLOCKED
COMPARATOR
CLOCK REGENERATION
AND SYNC
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
REFERENCE
VOLTAGE
DIFFERENTIAL
DECODER
BIPHASE
SYMBOL
DECODER
Vp1
QUAL
RDDA
VREF
MUX
VDDA
VSSA
CIN
SCOUT
RDCL
T57
OSCO
OSCI
VDDD
VSSD
TEST
TSTLD