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參數(shù)資料
型號: W681513
廠商: WINBOND ELECTRONICS CORP
元件分類: Codec
英文描述: 5V SINGLE-CHANNEL VOICEBAND CODEC FOR USB APPLICATIONS
中文描述: 5V單聲道聲帶編解碼器為USB應(yīng)用
文件頁數(shù): 2/33頁
文件大小: 382K
代理商: W681513
W681513
- 2 -
1. GENERAL DESCRIPTION
The
W681513
is a single channel PCM CODEC with pin-selectable
μ
-Law or A-Law companding
dedicated to the USB accessory market by supporting a derivative 2MHz clock. 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 SOP package option. 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.
W681513
performance is specified over the industrial
temperature range of –40
°
C to +85
°
C.
The
W681513
includes an on-chip precision voltage reference and an additional power amplifier,
capable of driving 300
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.
W681513
accepts 2MHz
master clock rate, and an on-chip pre-scaler automatically determines the division ratio for the
required internal clock.
2. FEATURES
Single +5V power supply
Typical power dissipation of 30 mW,
power-down mode of 0.5
μ
W
Fully-differential analog circuit design
On-chip precision reference of 1.575 V for
a 0 dBm TLP at 600
Push-pull power amplifiers with external
gain adjustment with 300
load capability
Master clock rate supports 2.000MHz
clock for USB applications
μ
-Law
companding (compliant with ITU G.711)
Pin-selectable
and
A-Law
CODEC A/D and D/A filtering compliant
with ITU G.712
Industrial temperature range (–40
°
C to
+85
°
C)
Package: 20-pin SOP (SOG)
ApplIcations
Soft phones running on a PC (VoInternet):
o
USB Phones
o
USB to PSTN Gateway
USB Microphones
USB Headset for PC and Game Consules
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W681513SG 功能描述:IC VOICEBAND CODEC 5V USB 20SOP RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:- 標(biāo)準(zhǔn)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(diào)變:是 S/N 比,標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動(dòng)態(tài)范圍,標(biāo)準(zhǔn) 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(yīng)商設(shè)備封裝:48-TQFN-EP(7x7) 包裝:帶卷 (TR)
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