CA3126
Test Circuit
+24V
10kΩ
270Ω
V
REG
2N2102
0.05µF
3.9kΩ
CW
47kΩ
10kΩ
CCW
CHROMA
GAIN
CONTROL
1µF
16
15
14
1
2
S
2
0.01µF
1µF
13
12
11
10
9
0.02µF
I
0.02µF
2kΩ
OSCILLOSCOPE
CA3126
1
0.01µF
2.45kΩ
TP
1
S
1
1
CHROMA
INPUT
SIGNAL
2
2
2
kΩ
0.01µF 0.1µF
3
4
5
6
7
8
0.01µF
680Ω
0.01µF
0.01µF
10pF
NPO
XTAL
3.579545MHz
20pF
N750
33pF
N750
SUB-
CARRIER
OUTPUT
COUNTER
50Ω
VARIABLE
ATTENUATOR
TEST SIGNAL
GENERATOR
BURST
SYNC.
KEY
PULSE
PULSE
GENERATOR
2.5µs
63.5µs
3.579545MHz
4µs
V
CHROMA
0.46V
CHROMA
1.0V
PEAK
(MIN)
5µs CENTERED ON BURST
Pin numbers refer to the PDIP package.
(A) Chroma input signal
(B) Key pulse input signal
(A)
BURST
(B)
8-35
HARRIS [ HARRIS CORPORATION ]
