New Qualified 12-bit Linear Half Duplex Voice Codec from Chipidea Microelectronics SA
Update: MIPS Technologies Acquires Chipidea (August 27, 2007)
conversion, channel filtering, microphone and speaker interfacing. It was designed in 0.18um CMOS and retargetable towards any sub - micron CMOS technology with 2.5V/3V/5V supply.This cell is very compact (0.42mm2 active area) and very low power (0.9mA typical consumption) by sharing most blocks between ADC and DAC channels. Still, the dynamic performance is high enough for most voice record/playback systems (over 70dB Dynamic Range and over 75dB THD).
The channel filters are implemented digitally, embedded in the decimation and interpolation filters associated with the converters. The receive channel volume control has a range from 0 to 42dB with 6 dB steps. The differential speaker amplifier can drive an external load of 8 Ohm with 70mW (equivalent to LM4882). The microphone amplifier has a sensitivity range from 530mVrms to 4.2 mVrms. The data port is 12 bits parallel at 8kHz word sample rate. A power-down mode is included with less than 1uA of standby current.
|
Related News
- ChipIdea announces the silicon validation of CI3261Ba, a dual 12-bit 50MS/s pipeline ADC
- New 16-Bit 65dB Dynamic Range Standard Voice Codec with DTMF from ChipIdea
- Chipidea Microelectronics SA has again successfully qualified a Dual mode UMTs/GSM Baseband AFE-CI7185oa
- Ittiam Systems announces availability of its third generation H.265/HEVC codec with 422 12-bit support
- ChipIdea Microelectronics SA ranked as 115th on 2003 Europe’s 500 Listing of fast growing, job creating companies
Breaking News
- Alphawave Semi announced today a refocussing of the Board of Directors after reaching the three-year milestone since the Company's IPO
- Synopsys and Samsung Electronics Collaborate to Achieve First Production Tapeout of Flagship Mobile CPU with Leading Performance on Samsung Foundry's GAA Process
- Worldwide Silicon Wafer Shipments Dip 5% in Q1 2024, SEMI Reports
- GOWIN's progress in global automotive market gathers momentum with award of ISO 26262 certification for its FPGA design environment
- PCI-SIG® Announces CopprLink™ Cable Specifications for PCIe® 5.0 and 6.0 Technology
Most Popular
- Silvaco Announces Launch of Initial Public Offering
- TSMC's A16 Process Moves Goalposts in Tech-Leadership Game
- Radiation-Tolerant PolarFire® SoC FPGAs Offer Low Power, Zero Configuration Upsets, RISC-V Architecture for Space Applications
- Synopsys Accelerates Next-Level Chip Innovation on TSMC Advanced Processes
- QuickLogic Releases Aurora 2.6 with Expanded Operating System Support and Up to 15% Faster Performance
E-mail This Article | Printer-Friendly Page |