Fully integrated voiceband codec in a standard digital CMOS technology.

Fully integrated voiceband codec in a standard digital CMOS technology.

A 2.7-V complete voiceband codec with high-performance speech interfaces is presented. It includes a low-noise microphone preamplifier and loudspeaker/earpiece drivers. In the 4-kHz signal bandwidth, the ADC achieves a dynamic range of 80 dB and a full scale S/(THD + N) ratio of 71 dB, while the DAC...

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Bibliografiske detaljer
Udgivet i:IEEE Journal of solid state circuits 39, 8 (2004).
Hovedforfatter: Pernici, S.
Format: Article
Sprog:English
Fag:
0.18 micron.
0.35 micron.
12 mW.
2.7 V.
4 kHz.
71 dB.
ADC.
CMOS analog integrated circuits.
CMOS integrated circuits.
DAC.
Bipolar transistors.
Earpiece drivers.
High-performance speech interfaces.
Linear capacitors.
Loudspeaker drivers.
Low power electronics.
Low-noise microphone preamplifier.
nMOS transistors.
Nonlinear poly-nwell capacitors.
pMOS transistors.
Power dissipation.
Signal bandwidth.
Unsalicided poly resistors.
Voiceband codec.