FM-RX2-418A-3V 参数 Datasheet PDF下载

FM T

RANSMITTER

& R

ECEIVER

M

ODULES

. (2

ND

G

ENERATION

)

Module test circuits

FM-TX2-XXX

FM-RX2-XXX

fig.5: TX2 test circuit

fig.6: RX2 test circuit

∗

The PNP transistor enables a CMOS compatible Carrier Detect signal to be derived from pin 3. If no CD signal required

pin 3 should be connected directly to pin 5 (Vcc)

Module mounting considerations

The modules may be mounted horizontally or vertically on an area of ground plane preferably

close to the antenna to minimise feed length. The receiver and it’s antenna should be kept away

from sources of interference (micro’s, SMPS etc.). The modules may be potted if required in a

viscous compound which can not enter the screen can..

Warning:

Do NOT wash the modules. They are not hermetically sealed.

DS000022

Rev D

July ‘99

©1999

REG No 277 4001, ENGLAND.

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