Digital/Analogue Two-Way Radio Products

Description

Audio Scrambler   and Sub-audio Signalling

Extended-code   CTCSS Encoder/ Decoder

Two-way Radio   Processor (FirmASIC®)

PMR Audio and   Data Processor

Baseband   Processors for PMR, Trunked and Leisure Radios

Function Image™

• Two-way Radio
  • 4FSK
  • C4FM

Voiceband
  Processing

Full

Voiceband Filters

Full

Full

Full

In-band Signalling

Tones

No

• DTMF Decode
  • NOAA NWR
  • Selcall
  • Tones

• DTMF

• Tones

Selcall
  • DTMF
  • XTCSS

Sub-audio
  Signalling

• CTCSS
  • DCS

CTCSS

Yes

• CTCSS

• DCS

• CTCSS
  • DCS

Voice Scrambling

Frequency
  Inversion

No

Frequency
  Inversion

Frequency
  Inversion

Frequency
  Inversion

Data

No

No

• FFSK/MSK
  • 4FSK
  • C4FM

• DTMF

• FFSK

• MSK

FFSK/MSK

Synthesiser/s

No

No

Two

No

No

Auxiliaries

• ADCs/DACs
  • System Clocks
  • RAMDAC

No

• ADCs/DACs
  • System Clocks

•ADCs/DAC

• System Clocks

No

Description

Audio Band
  ‘Frequency Inversion’ Scrambler

Variable   Split-band
  Audio Scrambler

Frequency Domain
  Split-band Scrambler

Programmable
  Paging-tone Decoder

Voiceband Processing

Bandpass and
  Lowpass Filters

• Voiceband Filters

No

No

In-band Signalling

No

No

No

• 32-user   Programmed
  Tones
  • Multi-tone Decoder

Sub-audio Signalling

No

No

No

No

Voice Scrambling

Frequency   Inversion

Variable   Split-band

Split-band
  Inversion

No

Voltage Range

3.0 to 5.5 V

4.5 TO 5.5 V

2.7 to 3.75 V

2.7 to 5.5 V

Packages

• 16-pin SOIC

24-pin PLCC

24-pin SSOP

16-pin TSSOP

Support Kit

No

No

On-line   Scrambling Demo

No