CMX589A View Datasheet(PDF) - CML Microsystems Plc
Part Name
Description
Manufacturer
CMX589A Datasheet PDF : 24 Pages
| |||
CMX589A
GMSK Modem
D/589A/3 September 1998
Provisional Information
Features and Applications
• Data Rates from 4kbps to 200kbps
•
• Full or Half Duplex Gaussian Filter and Data
Recovery for Minimum Shift Keying (GMSK) Designs
• Selectable BT: (0.3 or 0.5)
•
• Low Power
•
3.0V, 20kbps, 1.5mA typ.
•
5.0V, 64kbps, 4.0mA typ.
•
• Low Current Non-DSP Solution
• Small TSSOP Packs fit PCMCIA/PC Cards
Portable Wireless Data Applications
Cellular Digital Packet Data (CDPD)
Mobitex™ Mobile Data System
Spread Spectrum Data Links
GPS/Differential GPS Wireless Links
Point-of-Sale Terminals
Low Power Wireless Data Link for PCs,
Laptops, and Printers
Brief Description
The CMX589A is a single-chip synchronous data pump/modem designed for Wireless Data Applications.
Employing Gaussian filtering for Minimum shift Keying (GMSK) baseband modulation applications, the
CMX589A features a wide range of available data rates from 4k to 200k bps. Data Rates and the choice of
BT (0.3 or 0.5) are pin programmable to provide for different system requirements.
The Tx and Rx digital data interfaces are bit serial, synchronized to generated Tx and Rx data clocks.
Separate Tx and Rx Powersave inputs allow full or half-duplex operation. Rx input levels can be set by
suitable AC and DC level adjusting circuitry built with external components around an on-chip Rx Input
Amplifier.
Acquisition, Lock, and Hold of Rx data signals are made easier and faster by the use of Rx Control Inputs to
clamp, detect, and /or hold input data levels and can be set by the µProcessor as required. The Rx S/N output
provides an indication of the quality of the received signal.
The CMX589A may be used with a 3.0V to 5.5V power supply and is available in the following packages:
24-pin TSSOP (CMX589AE2), 24-pin SSOP (CMX589AD5), 24-pin SOIC (CMX589AD2), and 24-pin PDIP
(CMX589AP4).
© 1998 Consumer Microcircuits Limited
Share Link: 