A 5.0mW 0dBm FSK transmitter for 315/433 MHz ISM applications in 0.25 μm CMOS

Author

Boom, Nico ; Rens, Wim ; Crols, Jan

Author_Institution

AnSem NV, Heverlee, Belgium

fYear

2004

fDate

21-23 Sept. 2004

Firstpage

199

Lastpage

202

Abstract

An ultra-low power multi-channel narrowband FSK transmitter has been developed that operates in the 315/433 MHz bands for ISM applications and consumes only 5.0 mW at 1.3 V for an output power of 0 dBm. For an output power of -10 dBm the combination of the minimum power supply (0.9 V) and maximal data rate (100 kbps) leads to an energy consumption of less than 17 nJ/bit. The transmitter has a direct PLL modulation architecture using a ΔΣ fractional-N synthesizer. The IC is implemented in a 0.25 μm CMOS process and occupies 4.8 mm².

Keywords

CMOS integrated circuits; frequency shift keying; frequency synthesizers; low-power electronics; phase locked loops; radio transmitters; sigma-delta modulation; voltage-controlled oscillators; ΔΣ fractional-N synthesizer; 0.25 micron; 0.9 V; 1.3 V; 100 kbit/s; 315 MHz; 433 MHz; 5.0 mW; CMOS; FSK transmitter; ISM bands; VCO; direct PLL modulation; multichannel narrowband transmitter; ultra-low power transmitter; CMOS integrated circuits; Delta modulation; Energy consumption; Frequency shift keying; Narrowband; Phase locked loops; Power generation; Power supplies; Synthesizers; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2004. ESSCIRC 2004. Proceeding of the 30th European

Print_ISBN

0-7803-8480-6

Type

conf

DOI

10.1109/ESSCIR.2004.1356652

Filename

1356652