High Speed GMSK Modem 4k to 64kbps
Page 5 of 20
MX589
3
External Components
V
DD
V
DD
XTAL
XTAL
1
2
3
4
5
6
24
23
22
21
20
19
18
17
16
15
14
13
1
C3
C4
XTAL/CLOCK
ClkDivA
RX S/N
TXCLK
RXCLK
RXDATA
TXDATA
TXPSAVE
TXENABLE
TXOUT
BT
X1
R2
C2
ClkDivB
2
XTAL/CLOCK
RX HOLD
RXDCacq
PLLacq
MX589
7
RX PSAVE
8
C5
R1
V
BIAS
9
R4
RX FB
10
11
12
R3
C6
RX SIGNAL IN
DOC1
V
SS
DOC2
C7
C8
C1
Figure 3: Recommended External Components
Component
Notes
Note 1
Value
1.0MΩ
100kΩ
Tolerance
±5%
Component
Notes
Value
0.1µF
1.0µF
22.0pF
Tolerance
±20%
R1
R2
R3
R4
C1
C2
C3
C4
C5
C6
C7
C8
±10%
±10%
±10%
±10%
±20%
±20%
Note 2
Note 4
Note 4
Note 1
Note 3
Note 3
X1
Note 5
Table 2: Recommended External Components
2001 MX-COM, Inc.
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 204800103.011
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies.
CMLMICRO [ CML MICROCIRCUITS ]
