Title :
A 15-mW 2.4-GHz IEEE 802.15.4 transmitter with a FIR-embedded phase modulator
Author :
Liu, Yao-Hong ; Lo, Hao-Hung ; Chen, Li-Guang ; Lin, Tsung-Hsien
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A 2.4-GHz half-sine shaping O-QPSK transmitter (TX) which supports IEEE 802.15.4 standard is reported. This TX employs a RF phase modulator which incorporates a semi-digital FIR filter for waveform shaping. Fabricated in a 0.18-μm CMOS process, the TX, including a PLL, draws 10 mA from a 1.5-V supply and delivers an output power of -3 dBm. It achieves an EVM of 6.2% when operating at 2-Mcps chip rate.
Keywords :
CMOS digital integrated circuits; FIR filters; UHF integrated circuits; Zigbee; phase modulation; quadrature phase shift keying; radio transmitters; CMOS process; FIR-embedded phase modulator; IEEE 802.15.4 transmitter; PLL; RF phase modulator; current 10 mA; frequency 2.4 GHz; half-sine shaping O-QPSK transmitter; power 15 mW; semidigital FIR filter; size 0.18 mum; voltage 1.5 V; waveform shaping; Bandwidth; Finite impulse response filter; Mixers; Phase locked loops; Phase modulation; Trajectory;
Conference_Titel :
Solid State Circuits Conference (A-SSCC), 2011 IEEE Asian
Conference_Location :
Jeju
Print_ISBN :
978-1-4577-1784-0
DOI :
10.1109/ASSCC.2011.6123566
