CML CMX823
The CMX823 is a high performance, low power, audio tone decoder that can operate on low S/N signals. Each decoded tone frequency is user-defined to provide the flexibility to operate in a variety of paging, two-way radio and proprietary systems. The CMX823 asserts an interrupt on tone decoding state transitions, e.g.| Part No. | CMX823 |
|---|---|
| Datasheet | CMX823 Download |
| Manufacturer |  CML |
| Description | Programmable Paging Tone Decoder |
| Buy | Stock & Price |
FEATURES
● Decodes 32 User-Programmed Tones● Stores Two Lists of 32 Tones to Fast- Switch Between Tone Sets
● Configurable Decode Response Time and Decode Bandwidths
● Low Power: 0.75mA at 2.7V (typ.) and 'Zero-Power' Powersave Mode
● Superior Signal to Noise Performance
● Low Cost 3.58MHz Xtal/Clock
● Small 16-pin TSSOP Package
APPLICATIONS
Provisional Issue● Two-Tone and 5/6-Tone Pagers
● Selective Calling (SELCALL) Systems
● Voice Pager Switching and Signalling
● Revertive Paging Systems
● Wireless Local Loop Signalling
● Audio Tone Signalling
APPLICATIONS
1.1 BriefDESCRIPTION
Example systems and tones include: Motorola Quick Call series; GE groups A, B and Zetron, Reach and Plectron 2-tone radio paging; Motorola 5/6-tone paging; and the EIA, CCIR, ZVEI1 and EEA tonesets used for HSC radio paging and SELCALL. Up to 32 user-defined decode tone frequencies from 280Hz to 3500Hz are written to an internal RAM-based FIFO. (Two separate 32-tone FIFOs are provided and support fast switching between tone sets.) Each programmed tone (entry in the list) is user-assigned to one of two (or both) tone groups.
