The HD155101BF is an RF single-chip linear IC developed for GSM and EGSM cellular systems. It integrates most of the functions of a transceiver, including the bias circuit for an RF LNA, a 1st mixer, 1st-IF amplifier, 2nd mixer, AGC amplifier, IQ quadrature demodulator for the receiver, and an IQ quadrature modulator and offset PLL for the transmitter. It also includes on-chip dividers for the 1st and 2nd local oscillator signals and a 90° phase splitter, as well as control circuits for power saving modes. The HD155101BF can operate down to 2.7V and is housed in a 48-pin LQFP SMD package. By adding a PLL frequency synthesizer IC, a power amplifier, and some external components, the HD155101BF can be used to create a small-sized transceiver handset for GSM and EGSM. The HD155101BF is fabricated using a 0.6µm double-polysilicon Bi-CMOS process.
The HD155101BF is a 48‑pin LQFP RF single‑chip linear IC designed for GSM and EGSM cellular systems. It integrates the bias circuit for a low‑noise amplifier, mixers, IF amplifiers, AGC, IQ demodulator and modulator, as well as an offset PLL and power‑saving control circuits, enabling compact hand‑portable transceivers.
Key features include wide RF receive (925‑960 MHz) and transmit (880‑915 MHz) ranges, low supply voltage operation (2.7‑5.25 V), low current consumption (42.5 mA typical in RX mode), and operation over –20 °C to +85 °C. The device is fabricated in a 0.6 µm double‑polysilicon Bi‑CMOS process and packaged in a 48‑pin LQFP.
| Receive RF frequency range | 925 to 960 MHz |
|---|---|
| Transmit RF frequency range | 880 to 915 MHz |
| Supply voltage (phase comparator & TX VCO driver) | 2.7 to 5.25 V |
| Supply voltage (other blocks) | 2.7 to 3.6 V |
| Typical RX mode current consumption | 42.5 mA Typ |
| Operating temperature range | -20 to +85 °C |
| Package type | 48‑pin LQFP SMD |
The device is housed in a 48‑pin LQFP SMD package.
Typical current consumption in receive mode is 42.5 mA.