Communication ICs

Second Mixer IF for digital cellular
phones

BH4128FV

The BH4128FV is an IC equipped with internal second mixer and IF amplifier circuits, developed for use with digital cellu-
lar phones.

Applications

Digital cellular phones

Features

1) Equipped with internal mixer, IF, and RSSI circuits.
2) Can be operated at mixer input frequencies ranging

from 10MHz to 200MHz.

3) IF amplifier gain is 100 dB.
4) Equipped with a battery power saving function.

Absolute maximum ratings (Ta = 25

C, for measurement circuit)

Recommended operating conditions (Ta = 25

C, for measurement circuit)