-18-
IC BLOCK DIAGRAM -2/2
IC, SAA6579T
IC, LC75374E
MUX
ANTI-
ALIASING
FILTER
57 kHz
BANDPASS
(8th ORDER)
OSCILLATOR
AND
DIVIDER
BIPHASE
SYMBOL
DECODER
COSTAS LOOP
VARIABLE AND
FIXED DIVIDER
CLOCK
REGENERATION
AND SYNC
QUALITY BIT
GENERATOR
DIFFERENTIAL
DECODER
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
RECONSTRUCTION
FILTER
CLOCKED
COMPARATOR
REFERENCE
VOLTAGE
SCOUT
4
8
7
5
3
6
9
2
1
10
11
15
16
12
14
13
CIN
DDA
REF
SSA
MODE
TEST
SSD
T57
RDCL
RDDA
QUAL
V
DDD
OSCO
OSCI
V
V
p1
V
V
V