UPC8001 Datasheet, PDF (1/22 Pages) NEC – IF AMPLIFIER IC WITH ON-CHIP MIXER FOR DIGITAL CELLULAR PHONES

DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC8001
IF AMPLIFIER IC
WITH ON-CHIP MIXER FOR DIGITAL CELLULAR PHONES
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)
During operation
At power-OFF
Mixer
2.1 mA (TYP.)
0 µA (TYP.)
IF amp. + RSSI
0.95 mA (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
RSSI output fall time
77µs (TYP.)
113 µs (TYP.)
• High-speed power-ON/OFF switching time
Rise time at power-ON
Fall time at power-OFF
174 µs (TYP.)
3 µs (TYP.)
• External capacitors of less than 0.01 µF
• On-chip RSSI output resistor (34 kΩ)
• Ultra-compact package…14-pin plastic shrink SOP
Document No. IC-3426
(O.D.No. IC-8949)
Date Published February 1995 P
Printed in Japan
The information in this document is subject to change without notice.
The mark 5 shows revised points.
©_©
1994, 1995₂