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CMX7032 and CMX7042

AIS Baseband Processor ICs with RF Synthesisers*
Features:
  • Half-duplex GMSK and FSK Modem
  • AIS and DSC Data Formats
  • Supports CSTDMA Operation
  • Configurable by Function Image™
  • Optimum Co-channel Performance
  • Flexible Signal Channels:
    • Two Simultaneous Rx
    • One Tx
  • Two Flexible Integer-N Synthesisers *7032 only
  • Two Synthesised Auxiliary System Clocks
  • Limiter-discriminator Rx Interface
  • Flexible Tx Interface
    • I and Q
    • Two Point Modulation
  • Auxilary ADC and DAC Functions
    • Four x 10-bit DACs
    • Two x 10-bit ADCs
Applications:
  • Marine AIS Safety Systems
  • AIS Rx-only Modules
  • AIDS to Navigation (AtoN)
  • AIS Search and Rescue Transponder (SART)
Packages:
  • CMX7032L9 - 64-pin LQFP
    CMX7032Q1 - 64-pin VQFN
  • CMX7042L9 - 64-pin LQFP
    CMX7042Q1 - 64-pin VQFN
Supply Requirement:
  • 3.3V power supply
Description
As a CML product built on FirmASIC® technology, these highly integrated ICs can be configured, by Function Image™ file to one of two separate marine AIS functions: AIS Class B Implementation - Function Image™ 7032/7042FI-1.x
The 7032/7042FI-1.x provides a half-duplex, AIS baseband signalling processor IC with two on-chip RF synthesisers additionally available on the CMX7032.
Comprising two parallel limiter-discriminator Rx paths and one I and Q or two-point modulation Tx output path, the CMX7032 and the CMX7042 fulfill the requirements of the Class B marine AIS system.
Each of these paths is configurable for AIS or DSC operation.

 

AIS Rx-only Implementation - Function Image™ 7032FI-2.x
A baseband signalling processor IC, the CMX7032FI-2.x fulfils the requirements of the Rx-only marine AIS receiver market.
The 7032/7042FI-2.x comprises two parallel Limiter-Discriminator Rx paths and an RS232 style/NMEA 0183-HS compatible output (38400 baud). The device performs signal demodulation with associated AIS functions, such as training sequence detection, NRZI conversion and HDLC processing (flags, bit de-stuffing, CRC check).
Integrated Rx data buffers are also provided which removes the need for a host IC.

Provision of a number of user-programmable areas within the FI allows the RF synthesisers of the CMX7032 to be programmed directly, which simplifies the system hardware design, reducing the overall equipment cost and size. Allowance is made in the RS232 interface for an external GPS device to be connected to reduce the proliferation of interface connections in the final product design.

Evaluation Support:
PE0201 - Evaluation Kit for CMX703x Range of ICs
PE0402 - Evaluation Kit for CMX704x Range of ICs
PE0002 - Evaluation Kit Interface Card
DE70321 - CMX7032 AIS Development and Demonstration Kit