ca3256 Intersil Corporation, ca3256 Datasheet - Page 7

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

V
OUT
V
IN
CHANNEL 5
CHANNEL 1
OUTPUT
INPUT/
INPUT
FIGURE 3. TYPICAL APPLICATION WITH AC-COUPLED INPUT AND OUTPUT, AND V- = GND (DIP PINOUT)
SHOWN
INPUTS
2 OF 5
100K
2.2 F
2.2 F
75
75
CHANNEL
ENABLE
1-4
0.1 F
100K
17
13
15
1
3
4.7K
6
100K
CHAN 1-4
ENABLE
SELECT
0.047 F
TG-1
2.2 F
LLC
AND
4.7K
TG-2
V-
5
TG-3
CHANNEL
16
SELECT
V+ +12 TO +18V
A
1-4
BIAS
REG
14
TG-4
CA3256
18
B
0.047 F
2.2 F
8-7
TG-5
V- +5V
4.7K
Pulse Performance = 20ns t
frequency response.
V+ = +12V, R
CHANNEL
1
2
3
4
SELECT
10K
10K
5
7
C
8
F
= 1k , C
1K
+
10
4.7K
12
11
2
OUTPUT
AMP
C
COMP
4
R
COMP
F
9
GND
R
LED INDICATOR CHANNEL 1
LED INDICATOR CHANNEL 2
LED INDICATOR CHANNEL 3
LED INDICATOR CHANNEL 4
= 6pF.
for 0V to 2V Pulse. See Figure 4 for
220 F
V
OUT 2
WHERE AMPLIFIER GAIN:
FOR THIS CIRCUIT:
A V
75
V+ = +12V
A
BW = 18MHz (SINEWAVE)
VOUT = 1V
R
V
F
=
= 1.1
= 1K
1
V
+
OUT 1
R
----------------------
F
P-P
10K
+
1K
75
x 0.9
V
LED