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Basestation ICs
Advanced Basestation IC
NXP Semiconductors' highly integrated and powerful Advanced Basestation IC (ABIC) is ideally suited for vehicle immobilization applications.
This device incorporates all necessary functions to read and write to transponders, and employs a unique AM/PM demodulation technique (AST, Adaptive Sampling Time) that extends the system's operating range.
Optimized to operate with NXP's PCF79xx transponder family, the ABIC can be used in combination with commonly available transponders that employ ASK modulation. ASK modulation and reception characteristics are widely programmable for powerful system adaptation. The ABIC is also ideal for 'intelligent antenna' as well as 'active antenna' applications.
The carrier frequency can be derived from an on-chip oscillator or external clock source, and a wide range of clock frequencies can be applied using the programmable on-chip clock divider circuitry. The device enables system diagnostics via antenna failure detection features. Communication with the device and the transponder is provided via a serial microcontroller interface. Employing CMOS technology, the device features low power operation and supports idle and power down modes.
Product Overview
| Features | PCF7991AT |
PCJ7991AT |
|---|---|---|
| Extended system operating range due to powerful AM/PM demodulation techniques | Yes |
Yes |
| Ideally suited for 'intelligent antenna' and 'active antenna' architectures | Yes |
Yes |
| High antenna drive capabilities | CW: 200 mAp |
CW:
200 mAp |
| Low antenna driver output resistance | 3.5 Ohm |
3.5 Ohm |
| Excellent receiver sensitivity | 2 mVpp |
2 mVpp |
| Programmable clock divider, modulator, receiver gain and filter characteristics | Yes |
Yes |
| Fast 'read after write' receiver settling characteristics | Yes |
Yes |
| On-chip receive EMI filter | Yes |
Yes |
| Antenna failure mode detection | Yes |
Yes |
| Few external components | Yes |
Yes |
| Operating supply voltage | Yes |
Yes |
| Power down mode | 7 µA @ 5.5 V |
7 µA @ 5.5 V |
| Package | SO14 |
SO14 |
| Extended temperature range | -40 to +85 °C |
-40 to +105 °C |
To download technical documentation click here