Analog Path for Triple Band WCDMA Polar Modulated Transmitter in 90nm CMOS

Analog Path for Triple Band WCDMA Polar Modulated Transmitter in 90nm CMOS

We present a fully integrated analog path for a 3 G polar transmitter in 90 nm CMOS. It includes a quad band Digitally Controlled Oscillator providing modulation for the phase data and a single stage Digital Pre-Power Amplifier that combines the phase and amplitude signals while providing the dynami...

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Hauptverfasser: Akhtar, S., Litmanen, P., Ipek, M., Lin, J., Pennisi, S., Feng-Jung Huang, Staszewski, R.B.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
90nm
Amplitude modulation
DCO
Digital control
Digital modulation
DPPA
Dynamic range
Frequency
high dynamic range
Multiaccess communication
Oscillators
Phase modulation
polar transmitter
Power generation
Transmitters
WCDMA
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Beschreibung
Zusammenfassung:We present a fully integrated analog path for a 3 G polar transmitter in 90 nm CMOS. It includes a quad band Digitally Controlled Oscillator providing modulation for the phase data and a single stage Digital Pre-Power Amplifier that combines the phase and amplitude signals while providing the dynamic range for WCDMA. The chip, with integrated LDOs, consumes 60 mA from a 1.4 V supply while providing 11 dBm CW power at 1950 MHz, 87 dB dynamic range without any calibration, and PN of -157 dBc/Hz at 40 MHz.
ISSN:1529-2517
2375-0995
DOI:10.1109/RFIC.2007.380861