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UPC8001 Datasheet(PDF) 1 Page - NEC |
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1 page ![]() © 1992 DATA SHEET The µPC8001 is a 3-volt IF amplifier IC with an on-chip mixer developed for digital cellular phones. The µPC8001 consists of a high-sensitivity limiter amplifier with an input frequency of 455 kHz, a high-speed and high-precision linear RSSI (received signal strength indicator ), and a second mixer with an input frequency of 80 to 150 MHz. The µPC8001 features a low 3 mA (TYP.) and 2.2 µA (TYP.) current consumption at normal operation and power-OFF, respectively. Its high-speed charge/discharge circuit enables fast power-ON/OFF switching. The µPC8001 boasts an extremely small size packaged in a 14-pin plastic shrink SOP, and low external capacitances of less than 0.01 µF, in addition to an on-chip RSSI output resistor, and is most suitable for high-density mounting. FEATURES • Low-voltage operation…3 V ±10% • Low power consumption…(VCC = 3 V) Mixer IF amp. + RSSI During operation 2.1 mA (TYP.) 0.95 mA (TYP.) At power-OFF 0 µA (TYP.) 2.2 µA (TYP.) • High limiting sensitivity…–91 dBm (TYP.) • High-precision RSSI linearity… ±0.5 dB (TYP.) (VIF IN = –86 to –6 dBm) • High-speed RSSI response time RSSI output rise time 77 µs (TYP.) RSSI output fall time 113 µs (TYP.) • High-speed power-ON/OFF switching time Rise time at power-ON 174 µs (TYP.) Fall time at power-OFF 3 µs (TYP.) • External capacitors of less than 0.01 µF • On-chip RSSI output resistor (34 k Ω) • Ultra-compact package…14-pin plastic shrink SOP BIPOLAR ANALOG INTEGRATED CIRCUIT µPC8001 The information in this document is subject to change without notice. Document No. IC-3426 (O.D.No. IC-8949) Date Published February 1995 P Printed in Japan The mark 5 shows revised points. © 1994, 1995 IF AMPLIFIER IC WITH ON-CHIP MIXER FOR DIGITAL CELLULAR PHONES |