GENERAL DESCRIPTION

The W681511 is a general-purpose single channel PCM CODEC with pin-selectable μ-Law or A-Law companding. The device is compliant with the ITU G.712 specification. It operates off of a single +5V power supply and is available in 20-pin SOG package options. Functions performed include digitization and reconstruction of voice signals, and band limiting and smoothing filters required for PCM systems. The filters are compliant with ITU G.712 specification. W681511 performance is specified over the industrial temperature range of –40°C to +85°C.

FEATURES

• Single +5V power supply

• Typical power dissipation of 25 mW, power-down mode of 0.5 μW

• Fully-differential analog circuit design

• On-chip precision reference of 1.575 V for a 0 dBm TLP at 600 Ω

• Push-pull power amplifiers with external gain adjustment with 300 Ω load capability

• Seven master clock rates of 256 kHz to 4.096 MHz

• Pin-selectable μ-Law and A-Law companding (compliant with ITU G.711)

• CODEC A/D and D/A filtering compliant with ITU G.712

• Industrial temperature range (–40°C to +85°C)

• Package: 20-pin SOG

ApplIcations

• Digital Telephone Systems

• Central Office Equipment (Gateways, Switches, Routers)

• PBX Systems (Gateways, Switches)

• PABX/SOHO Systems

• Local Loop card

• SOHO Routers

• VoIP Terminals

• Enterprise Phones

• ISDN Terminals

• Analog line cards

• Digital Voice Recorders

W681511属于集成电路（IC） > 编解码器。新唐科技股份有限公司制造生产的W681511编解码器编解码器是用于通过压缩和解压缩来转换数据的半导体器件。数据压缩可提高传输速度并减少存储空间。某些编解码器提供高达 32 位的分辨率，并且分别提供多达 6 个或 8 个模数转换器和数模转换器。除三角积分调制外，还有 I2C、I2S、SPI、串行、HDA、S/DIF、PCM、USB、AC'97 和 SLIMbus 数据接口。