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UAA2082H Datasheet(PDF) 2 Page - NXP Semiconductors |
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UAA2082H Datasheet(HTML) 2 Page - NXP Semiconductors |
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2 / 40 page  1996 Jan 15 2 Philips Semiconductors Product specification Advanced pager receiver UAA2082 FEATURES • Wide frequency range: VHF, UHF and 900 MHz bands • High sensitivity • High dynamic range • Electronically adjustable filters on chip • Suitable for data rates up to 2400 bits/s • Wide frequency offset and deviation range • Fully POCSAG compatible FSK receiver • Power on/off mode selectable by the chip enable input • Low supply voltage; low power consumption • 1-cell battery-low detection circuit • High integration level • Interfaces directly to the PCA5000A, PCF5001 and PCD5003 POCSAG decoders. APPLICATIONS • Wide area paging • On-site paging • Telemetry • RF security systems • Low bit-rate wireless data links. GENERAL DESCRIPTION The UAA2082 is a high-performance low-power radio receiver circuit primarily intended for VHF, UHF and 900 MHz pager receivers for wide area digital paging systems, employing direct FM non-return-to-zero (NRZ) frequency shift keying (FSK). The receiver design is based on the direct conversion principle where the input signal is mixed directly down to the baseband by a local oscillator on the signal frequency. Two complete signal paths with signals of 90 ° phase difference are required to demodulate the signal. All channel selectivity is provided by the built-in IF filters. The circuit makes extensive use of on-chip capacitors to minimize the number of external components. The battery monitoring circuit has an external sense input and a 1.1 V detection threshold for easy operation in a single-cell supply concept. The UAA2082 was designed to operate together with the PCA5000A, PCF5001 or PCD5003 POCSAG decoders, which contain a digital input filter for optimum call success rate. ORDERING INFORMATION TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION UAA2082H LQFP32 plastic low profile quad flat package; 32 leads; body 7 × 7 × 1.4 mm SOT358-1 UAA2082U 28 pads naked die; see Fig.8 |
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Similar Description - UAA2082H |
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