©

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%

•

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…

•

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

Fall time at power-OFF

3

•

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

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