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參數資料
| 型號： | HA457 |
| 廠商： | Intersil Corporation |
| 英文描述： | 95MHz, Low Power, AV = 2, 8 x 8 Video Crosspoint Switch |
| 中文描述： | 95MHz，低功耗，影音\u003d 2，8 × 8視頻交叉點開關 |
| 文件頁數： | 6/14頁 |
| 文件大小： | 175K |
| 代理商： | HA457 |
6
AC Test Circuits
FIGURE 1. -3dB BANDWIDTH
(NOTES 7-10)
FIGURE 2. ALL HOSTILE OFF ISOLATION
(NOTES 10-12)
FIGURE 3. SINGLE CHANNEL CROSSTALK
(NOTES 10, 13-16)
FIGURE 4. ALL HOSTILE CROSSTALK
(NOTES 10, 15, 17-19)
NOTES:
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
IN
, and measure the -3dB frequency at the selected output (V
OUT
).
10. Load all outputs with the desired R
L
.
11. Disable all outputs.
12. Drive all inputs with V
IN
and measure V
OUT
at any output; Isolation (in dB) = -20log
10
(V
OUT
/V
IN
).
13. Drive V
IN
on one input which connects to one output (e.g., IN7 to OUT7).
14. Terminate all other inputs to GND.
15. Enable all outputs.
16. Measure V
OUT
at any undriven output; Crosstalk (in dB) = 20log
10
(V
OUT
/V
IN
).
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
IN
, and connect these active inputs to the remaining seven outputs.
19. Measure V
OUT
at the quiescent output; Crosstalk (in dB) = 20log
10
(V
OUT
/V
IN
).
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
OUT0
OUT3
OUT4
OUT5
OUT6
OUT7
OUT1
OUT2
V
OUT
V
IN
= 1V
P-P
, SWEEP FREQUENCY
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
OUT0
OUT3
OUT4
OUT5
OUT6
OUT7
OUT1
OUT2
V
IN
= 1V
P-P
, AT 10MHz
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
OUT0
OUT3
OUT4
OUT5
OUT6
OUT7
OUT1
OUT2
V
IN
= 1V
P-P
, AT 10MHz
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
7 X 75
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
OUT0
OUT3
OUT4
OUT5
OUT6
OUT7
OUT1
OUT2
V
IN
= 1V
P-P
, AT 10MHz
V
OUT
75
HA457
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