GENERAL DESCRIPTION
The PCD5002 is a very low power pager decoder and controller, capable of handling both standard POCSAG and the advanced APOC-1 code. Continuous data decoding upon reception of a dedicated sync word is available for news pager applications.
Data rates supported are 512, 1200 and 2400 bits/s using a single 76.8 kHz crystal. On-chip EEPROM is programmable using a minimum supply voltage of 2.0 V, allowing ‘over-the-air’ programming. I2C-bus compatible.

FEATURES
• Wide operating supply voltage range: 1.5 to 6.0 V
• EEPROM programming requires only 2.0 V supply
• Low operating current: 50 µA typ. (ON), 25 µA typ. (OFF)
• Temperature range −25 to +70 °C
• “CCIR radio paging Code No. 1” (POCSAG) compatible
• Supports Advanced Pager Operator’s Code Phase 1 (APOC-1) for extended battery economy
• 512, 1200 and 2400 bits/s data rates using 76.8 kHz crystal
• Built-in data filter (16-times oversampling) and bit clock recovery
• Advanced ACCESS synchronization algorithm
• 2-bit random and (optional) 4-bit burst error correction
• Up to 6 user addresses (RICs), each with 4 functions/alert cadences
• Up to 6 user address frames, independently programmable
• Standard POCSAG sync word, plus up to 4 user programmable sync words
• Continuous data decoding upon reception of user programmable sync word (optional)
• Received data inversion (optional)
• Call alert via beeper, vibrator or LED
• 2-level acoustic alert using single external transistor
• Alert control: automatic (POCSAG type), via cadence register or alert input pin
• Separate power control of receiver and RF oscillator for battery economy
• Synthesizer set-up and control interface (3-line serial)
• On-chip EEPROM for storage of user addresses (RICs), pager configuration and synthesizer data
• On-chip SRAM buffer for message data
• Slave I2C-bus interface to microcontroller for transfer of message data, status/control and EEPROM programming (data transfer at up to 100 kbits/s)
• Wake-up interrupt for microcontroller, programmable polarity
• Direct and I2C-bus control of operating status (ON/OFF)
• Battery-low indication (external detector)
• Out-of-range condition indication
• Real time clock reference output
• On-chip voltage doubler
• Interfaces directly to UAA2080 and UAA2082 paging receivers.

APPLICATIONS
• Advanced display pagers (POCSAG and APOC-1)
• Basic alert-only pagers
• Information services
• Personal organizers
• Telepoint
• Telemetry/data transmission.