Evaluation Kit for CMX838 Family Radio Processor
10
EV8380 User Manual
3.3
EV8380 External Connections
CS
CS 2
J1:12
J1: 2
J1: 1
J1:11
J1:10
J4:10
J4: 8
J4: 6
J4: 4
J4: 2
Second set of C-BUS
Primary
CMX838
C-BUS
interface
signals
are
exposed
at a
connector.
interface signals is
exposed at a connector
to support user
implemented daisy-
chained board
configurations
controlled by a single
PCMCIA card.
IRQ
IRQ 2
Reply Data
Reply Data 2
Command Data
Serial Clock
Command Data
2
Serial Clock 2
Figure 1: EV8380 PC and C-BUS Connections
Rx Input
AOUT
P5:1,2
P3:1,2
P2:1,2
P2:3,4
To support
user-added
external
Rx Output
BOUT
companding
and scrambling
processing.
TX MOD1
Output
AIN
BIN
P4:1,2
P4:3,4
P2:5,6
P2:7,8
TX MOD2
Output
Mic input
AUX I/O
J2
Speaker Output
J3
P5:3,4
Figure 2: EV8380 Baseband Signal Connections
RF input from external
VCO
SM2
SM1
Charge pump output
current to external
VCO loop filter
SM3
Input from external
synthesizer reference
oscillator e.g. TCXO.
Figure 3: EV8380 RF Connections
¤2001 MX-COM, Inc.
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 20480230.001
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