HA456 Intersil Corporation, HA456 Datasheet - Page 11

• Manufacturer Part Number: HA456
• Description: 120MHz/ Low Power/ 8 x 8 Video Crosspoint Switch
• Manufacturer: Intersil Corporation

AC Test Circuits
NOTES:
10. Load all outputs with the desired R
11. Disable all outputs.
12. Drive all inputs with V
13. Drive V
14. Terminate all other inputs to GND.
15. Enable all outputs.
16. Measure V
17. Terminate one input to GND, and connect that input to a single output (e.g., IN0 to OUT0).
18. Drive the other seven inputs with V
19. Measure V
FIGURE 8. SINGLE CHANNEL CROSSTALK (NOTES 10, 13-16)
7. Program the desired input to output combination (e.g., IN7 to OUT1).
8. Enable the selected output(s).
9. Drive the selected input with V
7 X 75
FIGURE 6. -3dB BANDWIDTH (NOTES 7-10)
IN
on one input which connects to one output (e.g., IN7 to OUT7).
OUT
OUT
V
IN
at any undriven output; crosstalk (in dB) = 20log
at the quiescent output; crosstalk (in dB) = 20log
= 1V
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
V
P-P
IN
IN
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
= 1V
, SWEEP FREQUENCY
and measure V
P-P
11
, AT10MHz
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
IN
, and measure the -3dB frequency at the selected output (V
L
IN
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
.
, and connect these active inputs to the remaining seven outputs.
OUT
at any output; isolation (in dB) = -20log
V
OUT
V
V
V
V
V
V
V
OUT
OUT
OUT
OUT
OUT
OUT
OUT
HA456
10
10
(V
(V
OUT
OUT
/V
/V
FIGURE 9. ALL HOSTILE CROSSTALK (NOTES 10, 15, 17-19)
IN
IN
FIGURE 7. ALL HOSTILE OFF ISOLATION (NOTES 10-12)
).
).
75
10
(V
OUT
OUT
/V
V
IN
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN
).
).
V
= 1V
IN
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
= 1V
P-P
, AT 10MHz
P-P
, AT 10MHz
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
V
V
V
V
V
V
V
V
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
V
OUT