Agilent Technologies Agilent 3499A, Руководство пользователя

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338
Chapter 9 Specifications
44472A Dual 4-Channel VHF Switch Module
9
AC ISOLATION / PERFORMANCE
a
Capacitance:
Center-Center, Center-
Common:
Center-Low:
Low-Chassis: < 0.002 pF
< 70 pF
< 0.20
µ
F
Rise Time:
< 0.7 ns
Signal Delay:
< 2.5 ns (channel match < 90 ps)
Insertion Loss:
(with 50
Ω
termination)
30 MHz:
100 MHz:
300 MHz: < 0.50 dB
< 0.75 dB
< 1.25 dB
Crosstalk Within a Group:
(Channel-Channel or
Channel-Common,
with 50
Ω
termination)
30 MHz:
100 MHz:
300 MHz: < -100 dB
< -85 dB
< -65 dB
Crosstalk Group to Group:
(with 50
Ω
termination)
30 MHz:
100 MHz:
300 MHz: < -85 dB
< -85 dB
< -50 dB
VSWR:
(with 50
Ω
termination)
30 MHz:
100 MHz:
300 MHz: < 1.06
< 1.12
< 1.43
a. When all channels in a group are opened, the last channel opened (or channel 00 or 13 following a group RESET)
has channel-common isolation of > 80 dB @ 30 MHz, > 60 dB @ 100 MHz, and > 40 dB @ 300 MHz.