U1014
PCC317
U1017
PC74HC165D-T
– 50 –
1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
CK
E
F
G
H
QH
D
C
B
A
SERIAL
IN
CLOCK
INHIBIT
SHIFT/
LOAD
GND
QH
VCC
OUTPUT
QH
SERIAL
INPUT
A
B
C
D
CLOCK
INHIBIT
SHIFT/
LOAD
CLOCK
E
F
G
H
OUTPUT
QH
PARALLEL INPUTS
PARALLEL INPUTS
3
4
5
6
7
8
9
10
16
15
14
13
12
11
+
–
BIAS
GENERATOR
ANTI-ALIAS
FILTER
OSCILLATOR
ALERT SIGNAL
HIGH TONE
FILTER
ALERT SIGNAL
LOW TONE
FILTER
TONE
DETECTION
ALGORITHM
GUARD
TIME
INTERRUPT
GENERATOR
CARRIER
DETECTOR
FSK
DEMODUL-
ATOR
FSK
BANDPASS
FILTER
DATA
TIMING
RECOVERY
24
23
22
21
20
19
18
17
1
2
IN+
IN–
GS
VREF
CAP
TRIGIN
TRIGRC
TRIGOUT
MODE
OSCIN
OSCOUT
VSS
IC
PWDN
FSKEN
DCLK
DATA
DR
CD
INT
STD
EST
ST/GT
VDD
TO
INTERNAL
CCL
TO
INTERNAL
CCL
U1015
ILC7081AIM5-30
5
1
2
3
BANDGAP
REFERENCE
VREF
ERROR
AMP
TRANS-
CONDUCTANCE
AMP
VIN
GND
ON/OFF
4
VOUT
CNOISE