ADG918BRM-REEL7(RevE) 查看數據表（PDF） - Analog Devices

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ADG918BRM-REEL7
(Rev.:RevE)

Wideband 4 GHz, 43 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 2:1 Mux/SPDT

Analog Devices 

Data Sheet

TEST CIRCUITS

Setups for the ADG918 are similar.

VDD

0.1µF

VDD

RFC

RFx

VS

CTRL

GND

VOUT

RL

50Ω

VCTRL

VOUT

50%

90%

50%

10%

tON

tOFF

Figure 19. Switch Timing: tON, tOFF

VDD

0.1µF

VDD

RFC

VS

CTRL

RFx

VOUT

RL

50Ω

VCTRL

10%

VOUT

50%

90%

50%

90%

10%

GND

tRISE

Figure 20. Switch

tFALL

VDD

0.1µF

RFC

CTRL

VCTRL

VDD ADG919

RF1

50Ω

VS

VOUT

RL

50Ω

RF2

50Ω

NETWORK

ANALYZER

GND

OFF ISOLATION = 20log VOUT

VS

Figure 21. Off Isolation

ADG918/ADG919

VDD

0.1µF

VDD ADG919

RFC

RF1

50Ω

VOUT

RL

50Ω

NETWORK

ANALYZER

CTRL

VCTRL

GND

RF2

50Ω

VS

VOUT

INSERTION LOSS = 20log

VS

Figure 22. Insertion Loss

VDD

0.1µF

RFC

50Ω

CTRL

VCTRL

VDD ADG919

RF1

RF2

GND

VOUT

CROSSTALK = 20log

VS

Figure 23. Crosstalk

NETWORK

ANALYZER

50Ω

VS

VOUT

RL

50Ω

VDD

0.1µF

OSCILLOSCOPE

RFC

CTRL

VCTRL

VDD ADG919

NC

RF1

GND

NC

RF2

Figure 24. Video Feedthrough

Rev. E | Page 11 of 16

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