Description

The CMX589AE2 is a single-chip synchronous data pump/modem designed for wireless data applications. It employs Gaussian filtering for minimum shift keying (GMSK) baseband modulation. The CMX589AE2 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.

Specifications and Features

• Data Rates: 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

Application Scenarios

The CMX589AE2 is ideal for use in portable wireless data applications, including cellular digital packet data (CDPD) and Mobitex mobile data systems. It can also be used for spread spectrum data links, GPS/differential GPS wireless links, and point-of-sale terminals. Additionally, it is suitable for low power wireless data links for PCs, laptops, and printers.

Comparison

• Wide range of available data rates
• Selectable BT for different system requirements
• Low power consumption
• Small TSSOP packs fit PCMCIA/PC cards
• Ideal for portable wireless data applications

• Not suitable for high-speed data applications
• May not be compatible with all wireless systems