New 16-Bit 65dB Dynamic Range Standard Voice Codec with DTMF from ChipIdea
Update: MIPS Technologies Acquires Chipidea (August 27, 2007)
This cell (CI7264ia) is a complete 16-bit voice codec instantiated in 0.35m CMOS and retargetable towards any sub-micron CMOS technology with 2.5V/3V/5V supply. It can be used for voice signal processing applications such as mobile telephony, voice recognition, etc It includes 16bit linear A-to-D and D-to-A conversion, channel filtering, microphone amplifier and speaker preamplifier. The A-to-D and D-to-A converters use oversampling delta-sigma technology. The channel filters are implemented digitally, embedded in the decimation and interpolation filters associated with the converters. Dual Transmit volume control has a range of -30/+45 dB with 1 dB steps. The receive volume control has a range of -52/+10 dB with 1 dB, and 6dB steps for the high attenuation range. The preamp ouput can drive 1Kohm/50pF load. The microphone amplifiers have 4 selectable sensitivities.The data port is 16 bits parallel at 8 kHz sample rates. The master clock runs at 2048KHz Multiple power-down modes are included with less than 10mA of standby current. The cell has a 2.7 sqmm analog active area and 40kgate for digital processing.
|
Related News
- New Qualified 12-bit Linear Half Duplex Voice Codec from Chipidea Microelectronics SA
- VESA Introduces DisplayHDR True Black High Dynamic Range Standard for Organic Light Emitting Diode (OLED) and other Emissive Displays
- VESA Defines New Standard to Help Speed PC Industry Adoption of High Dynamic Range Technology in Laptop and Desktop Monitor Displays
- ViXS Video SoC Is the First to Support 12-Bit High Dynamic Range Technology
- Cambridge Consultants XAP5 core sets new standard for 16-bit processors
Breaking News
- Synopsys Delivers Breakthrough Performance with New ZeBu Empower Emulation System for Hardware-Software Power Verification
- CEVA's MotionEngine Smart TV Software Comes to More Smart TV brands via LG webOS
- Tianyihexin Licenses Codasip's L30 for Powering Intelligent Wearable Device Solutions
- Andes Technology and Rambus Collaborate to offer Secure Solution for MCU and IoT Applications
- RISC-V International Unveils Fast Track Architecture Extension Process and Ratifies ZiHintPause Extension
Most Popular
- Proposed Arm Buyout: Huang on So Many Levels
- Imagination's GPU selected by StarFive to create high-performance, small and low-cost BeagleV RISC-V AI single board computer
- CEA-Leti & Dolphin Design Report FD-SOI Breakthrough that Boosts Operating Frequency by 450% and Reduces Power Consumption by 30%
- Moschip Unveils Focused Strategy For Turn-Key ASIC Solutions
- Samsung Foundry Certifies Synopsys IC Validator for 5nm and 4nm Advanced Process Technologies
![]() |
E-mail This Article | ![]() |
![]() |
Printer-Friendly Page |