MX469D3 データシートの表示（PDF） - MX-COM Inc
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MX469D3 Datasheet PDF : 17 Pages
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1200/2400/4800bps MSK Modem
11
5.2 Bit Error Rate
VDD
MX469
VDD
MILLI-
AMMETER
PREAMBLE &
PSEUDO-RANDOM
DATA
GENERATOR
TX
DATA
I/P
MX469
TRANSMITTER
(components
as Fig. 2)
TX
SIGNAL
O/P
BUFFER
(INTERFACE)
CIRCUIT
Tx SYNC
OSCILLOSCOPE
TRUE RMS
VOLTMETER
S3 TELEPHONE
CHANNEL
SIMULATOR
(with attenuator
&
5kHz BW noise gen)
RX
SIGNAL
IN
MILLI-
AMMETER
CLOCKED
DATA OUT
MX469
RECEIVER
(components
as Fig. 2)
RX
SYNC
ERROR
DETECTOR
TRUE RMS
VOLTMETER
CARRIER
DETECT
OUT
CARRIER
DETECT
OUT HIGH
DETECTOR
Figure 10: MX469 Test Set-Up
Figure 11: Typical Variation of Bit Error Rate with Input Level
1998 MX-COM, Inc.
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054
Doc. # 20480081.010
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.
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