DocumentCode :
3414213
Title :
A 110dB ternary PWM current-mode audio DAC with monolithic 2Vrms driver
Author :
Lei, T. ; Melanson, J.
fYear :
2004
fDate :
15-19 Feb. 2004
Firstpage :
372
Abstract :
A ΔΣ audio DAC uses a 4b quantizer, ternary PWM encoding, and semidigital current-mode FIRs for 110dB dynamic range over 20kHz. The IC achieves -99dB THD driving a single-ended 2Vrms signal into a 5kΩ load. Die area is 5.98mm2 in a 0.35μm/3.3V process with a 3μm/18V module.
Keywords :
CMOS integrated circuits; FIR filters; audio coding; current-mode circuits; delta-sigma modulation; driver circuits; feedforward; intersymbol interference; pulse width modulation; quantisation (signal); continuous-time current source DAC; fifth-order feedforward topology; fully-differential class-AB topology; intersymbol interference; large voltage swing signals; monolithic driver; multibit delta-sigma modulator; quantizer; semidigital current-mode FIR; single-ended signal; stereo DAC; ternary PWM current-mode audio DAC; ternary PWM encoding; Clocks; Driver circuits; Encoding; Finite impulse response filter; Interpolation; Intersymbol interference; MOS devices; Pulse width modulation; Shift registers; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Circuits Conference, 2004. Digest of Technical Papers. ISSCC. 2004 IEEE International
ISSN :
0193-6530
Print_ISBN :
0-7803-8267-6
Type :
conf
DOI :
10.1109/ISSCC.2004.1332749
Filename :
1332749
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3414213
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