CML Microcircuits FX980
This device is intended to act as an interface between the analogue and digital sections of a Digital Radio System, and performs many critical and DSP-intensive functions. The chip is designed with the necessary capability to meet the requirements for use in both mobile and base station applications in Terrestrial Trunked Radio (TETRA) systems.| Part No. | FX980 |
|---|---|
| Datasheet | FX980 Download |
| Manufacturer |  CML Microcircuits |
| Description | TETRA Baseband Processor |
| Buy | Stock & Price |
FEATURES
● RRC Filters for both Tx and Rx● FX980 D/980/3 November 1997 Advance Information
● 4 x10-Bit D-A and 4 Input 10-Bit A-D
● Transmit Output Power Control
● Low Power 3.0 - 5.5Volt Operation
● Effective Power down Modes π/4 DQPSK Modulation
● 2x 13-Bit Resolution Sigma Delta D-A
● 2x 16-Bit Resolution Sigma Delta A-D 1.1 Brief
DESCRIPTION
The transmit path comprises all the circuitry required to convert digital data into suitably filtered analogue I and Q signals for subsequent up-conversion and transmission. This includes digital control of the output amplitudes, digital control of the output offsets and fully programmable digital filters: default coefficients provide the RRC response required for TETRA. The receive section accepts differential analogue I and Q signals at baseband and converts these into a suitably filtered digital form for further processing and data extraction. A facility is provided for digital offset correction and the digital filters are fully programmable with default coefficients providing the RRC response required for TETRA.
