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
- Thalia's AMALIA 24.2 introduces pioneering estimated parasitics feature to reduce PEX iterations by at least 30%
- TSMC plans 1.6nm process for 2026
- Qualitas Semiconductor Partners with TUV Rheinland Korea to Enhance ISO 26262 Functional Safety Management System
- M31 has successfully launched MIPI C/D PHY Combo IP on the advanced TSMC 5nm process
- Ceva multi-protocol wireless IP could simplify IoT MCU and SoC development
Most Popular
- Controversial former Arm China CEO founds RISC-V chip startup
- Siemens collaborates with TSMC on design tool certifications for the foundry's newest processes and other enablement milestones
- Credo at TSMC 2024 North America Technology Symposium
- Synopsys Accelerates Next-Level Chip Innovation on TSMC Advanced Processes
- Kalray Joins Arm Total Design, Extending Collaboration with Arm on Accelerated AI Processing
E-mail This Article | Printer-Friendly Page |