MX589 Consumer Microcircuits Limited, MX589 Datasheet - Page 3

• Manufacturer Part Number: MX589
• Description: Mx589 High Speed Gmsk Modem
• Manufacturer: Consumer Microcircuits Limited

High Speed GMSK Modem 4k to 64kbps
1
©2001 MX-COM, Inc.
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
Block Diagram
uController
or UART
RX PS
RX SIGNAL IN
RX FEEDBACK
TX ENABLE
TX PS
TX DATA
XTAL/CLOCK
XTAL
ClkDIVA
ClkDIVB
BT
V
RXHold
PLLacq
RXDCacq
DD
RX Frequency
Discriminator
DC Level
Adjust
RXD
RXC
TXD
TXC
www.mxcom.com tel: [phone] 744 5050 fax: [phone]
RX Sig In
V
BIAS
RX Data
RX Clock
TX Data
TX Clock
Figure 2: System Block Diagram
DATA RETIME &
+
-
LEVEL SHIFT
RX CIRCUIT
CONTROL
DIVIDER
Figure 1: Block Diagram
CLOCK
RX Feedback
Page 3 of 20
RX circuits
GMSK MODEM
FILTER
RX
and Gain
RX Filter
All trademarks and service marks are held by their respective companies.
MX589
TX circuits
DOC1
V
RX DC LEVEL
FILTER
DETECTION
DETECTION
BIAS
RX CLOCK
MEASURE
TX
RX DATA
RX S/N
TX Out
TX Out
Filter
DOC2
Adjustment
Signal and
Frequency
Modulator
DC Level
RX DATA
Doc. # 204800103.011
TX OUT
RX CLK
TX CLK
RX S/N
V
BIAS
V
V
BIAS
SS
MX589