FLY SP-770, Как в инструкции

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1. RF Transceiver Part
1.1 Introduction
1.1.1 Feature
Receiver
- Very low IF architecture
- Tri- band differential input LNAs
- Quadrature RF mixers
- Fully integrated channel filter
- More than 100 dB gain
- More than 110 dB control range
- Image-reject down conversion to baseband
Transmitter
- Precision IQ modulator
- Translation loop architecture
- Fully integrated wideband TX VCO
- Fully integrated TX loop filter
Frequency Synthesizer
- Single integrated, fully programmable fractional-N synthesizer
- Fully integrated wideband RF VCO
- Fast settling time suitable for multi-slot GPRS application
Voltage Control Crystal Oscillator (VCXO)
- 26 MHz crystal oscillator capable of supporting 13MHz / 26 MHz output clock
- Programmable capacitor array for coarse tuning
- Internal varactor for fine tuning
Regulators
- Built-in low-noise, low-dropout (LDO) regulators
Low power consumption
QFN (Quad Flat Non-lead) Package 56-pin SMD
3-wire serial interface
MT6120 is fabricated using a 0.35 µm BiCMOS process
1.1.2 Applications
GSM 850 / PCS 1900 dual -band handsets
GSM 850 / DCS 1800 / PCS 1900 triple-band handsets
1.1.3 General Description
MT6120 is a highly integrated RF transceiver IC for multi-band Global Systems for
Mobile communication (GSM) and General Packet Radio Service (GPRS) cellular system
applications. The MT6120 includes four LNAs, two RF quadrature mixers, an integrated
channel filter, programmable gain amplifiers (PGA), an IQ demodulator for the receiver,
a precision IQ modulator with offset PLL for the transmitter, two internal TXVCOs, a
VCXO, on-chip regulators, and a fully programmable sigma-delta fractional-N
synthesizer with an on-chip RF VCO. The MT6120 also includes control circuits to
enable different operating modes. The device is housed in a 56-pin QFN SMD package