MT6139 datasheet (RF chip specification) data download

Posted on 2022-03-29 by Admin

The MT6139 is a highly integrated RF transceiver chip suitable for Global System for Mobile Communications (GSM 850, GSM 900), Digital Cellular Communication System (DCS 1800) and Personal Communication Services (PCS 1900) quad-band cellular systems.

1.1 FeaturesReceiver
Transmitter
Frequency Synthesize
Voltage Control Crystal Oscillator (VCXO
Regulator

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1.2 Applications

GSM900 / DCS1800 dual-band handsets
GSM900 / PCS1900 dual-band handsets
GSM850 / PCS1900 dual -band handsets
GSM900 / DCS1800 / PCS1900 triple-band handsets
GSM850 / GSM900 / DCS1800 / PCS1900 quad-band handsets

MT6139 functional block diagram and pin description:

2 Function description

2.1 Receiver

The receiver includes quad-band low-noise amplifiers (LNAs), RF quadrature mixers, on-chip channel filters, programmable gain amplifiers (PGA), and DC offset calibration (DCOC) loops. Adding a factory AM calibration procedure ahead of time, The IIP 2 of the MT6139 can reach at least 50 dBm in all bands. Fully integrated channel filters suppress interference and block signals. There are no external components.

2.2 Transmitter

The transmitter consists of BB I/Q filter, I/Q modulator, frequency divider and buffer amplifier. The BB I/Q signal is fed into an RC low pass filter to reduce out-of-band noise. The I/Q modulo TOR is responsible for converting the BB I/Q signal to the TX output frequency.

2.3 RF Frequency Synthesizer

2.4 Voltage Control Crystal Oscillator

2.5 Regulator

The MT6139 has built-in internal regulators to provide low noise, stable, temperature and process independent supply voltages for key blocks in the transceiver. There are three kinds of regulators in MT6139 , for VCO core circuit, Sigma-Delta modulator and VCXO circuit respectively. The first modulator with only one output is fed to the Sigma-Delta modulator.

3 MT6139 hardware control pin description

The table below shows the description of the MT 6139 hardware control pins and their functions.