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HD155101BF Datasheet

  • HD155101BF

  • RF Single-chip Linear IC for GSM and EGSM Systems

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  • HITACHI

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HD155101BF
RF Single-chip Linear IC for GSM and EGSM Systems
ADE-207-256A (Z)
2nd Edition
September 1998
Description
The HD155101BF was developed for GSM and EGSM cellular systems, and integrates most of the
functions of a transceiver. The HD155101BF incorporates the bias circuit for a RF LNA, a 1st mixer, 1st-
IF amplifier, 2nd mixer, AGC amplifier and an IQ quadrature demodulator for the receiver, and an IQ
quadrature modulator and offset PLL for the transmitter. Also, on chip are the dividers for the 1st & 2nd
local oscillator signals and 90藲 phase splitter. Moreover the HD155101BF includes control circuits to
implement power saving modes. These functions can operate down to 2.7 V and are housed in a 48-pin
LQFP SMD package.
Hence the HD155101BF can form a small size transceiver handset for GSM and EGSM by adding a PLL
frequency synthesizer IC, a power amplifier and some external components. See page 7 鈥淐onfiguration鈥?
The HD155101BF is fabricated using a 0.6
碌m
double-polysilicon Bi-CMOS process.
Functions
Receiver (RX)
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Low Noise Amplifier (LNA) bias circuit
1st mixer
IF amplifier
2nd mixer
Automatic gain control amplifier (AGC)
IQ demodulator with 90擄 phase splitter
Transmitter (TX)
鈥?/div>
IQ modulator with 90擄 phase splitter
鈥?/div>
Offset PLL
錚?/div>
Down converter
錚?/div>
Phase comparator
錚?/div>
TX VCO driver

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