ca3256 Intersil Corporation, ca3256 Datasheet - Page 9

• Manufacturer Part Number: ca3256
• Description: 25mhz, Bimos Analog Video Switch Amplifier
• Manufacturer: Intersil Corporation

FIGURE 6A. GATED OUTPUT FOR V+ = +12V ENABLE = HIGH, CONTROL B = C = LOW, CONTROL A = 10V PULSE. THE BURST
FIGURE 5. TYPICAL APPLICATION WITH DC-COUPLED INPUT AND OUTPUT, AND OFFSET ADJUST. OUTPUT VOLTAGE IS
GEN
IN 2
IN 3
IN 4
IN 5
FIGURE 6B. STANDARD NTS COLOR BAR
IN 1
FIXED BY THE V+ AND V- RANGE. (DIP PINOUT)
OUTPUT IS DELAYED
75
75
75
75
10 s/DIV.
17
13
1
3
75
15
2V
10V
P-P
6
~
ENABLE
400ns AT t
CHAN 1-4
ENABLE
SELECT
TG-1
FIGURE 6. PERFORMANCE OF CIRCUIT IN FIGURE 5
AND
LLC
TG-2
V- = -5V
ON
5
TG-3
, t
16
OFF
A
BIAS
REG
14
.
V+
TG-4
18
CA3256
B
1 s/DIV.
8-9
TG-5
V- +5V
FIGURE 6C. UNIFORM STEP SIGNAL WITH 3.58MHz MODULATION
2
1
3
4
10K
10K
7
V-
C
8
10K
1K
OUTPUT
+
GND
10K (NOTE)
AMP
OFF SET
ADJ.
4
R
1K
F
10 s/DIV.
15pF
+1
0
-1
10
0
V+
10
12
11
2
NOTE: Adjust offset for voltage at
pin 9 equal to 0V with no AC signal
and one channel “ON”. Dynamic
clamping may be accomplished by
error current feedback to pin 8.
9
LED
LED
LED
LED
V-
510
1.2K
1.2K
1.2K
1.2K
V
OUT
= 2V
V
75
LED
P-P