參數(shù)資料
型號: W681511IS
廠商: WINBOND ELECTRONICS CORP
元件分類: 編解碼器
英文描述: A/MU-LAW, PCM CODEC, PDSO20
封裝: 0.300 INCH, PLASTIC, SOP-20
文件頁數(shù): 12/33頁
文件大?。?/td> 511K
代理商: W681511IS
W681511
- 2 -
1. 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 PDIP, SOG, SSOP, and TSSOP 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.
The
W681511 includes an on-chip precision voltage reference and an additional power amplifier,
capable of driving 300
Ω loads differentially up to a level of 6.3V peak-to-peak. The analog section is
fully differential, reducing noise and improving the power supply rejection ratio. The data transfer
protocol supports both long-frame and short-frame synchronous communications for PCM
applications, and IDL and GCI communications for ISDN applications.
W681511 accepts seven
master clock rates between 256 kHz and 4.096 MHz, and an on-chip pre-scaler automatically
determines the division ratio for the required internal clock.
For fast evaluation and prototyping purposes, the
W681511DK development kit is available.
2. 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
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W681511SG TR 功能描述:IC VOICEBAND CODEC 5V 1CH 20SOP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標準包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率(位):18 b ADC / DAC 數(shù)量:2 / 2 三角積分調變:是 S/N 比,標準 ADC / DAC (db):81.5 / 88 動態(tài)范圍,標準 ADC / DAC (db):82 / 87.5 電壓 - 電源,模擬:2.6 V ~ 3.3 V 電壓 - 電源,數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應商設備封裝:48-TQFN-EP(7x7) 包裝:帶卷 (TR)
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