参数资料
型号: W681511SG
厂商: Nuvoton Technology Corporation of America
文件页数: 31/32页
文件大小: 0K
描述: IC VOICEBAND CODEC 5V 1CH 20SOP
其它有关文件: CODEC Block Diagram
标准包装: 38
类型: PCM
数据接口: PCM 音频接口
分辨率(位): 8 b
ADC / DAC 数量: 1 / 1
三角积分调变:
电压 - 电源,模拟: 4.5 V ~ 5.5 V
电压 - 电源,数字: 4.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
供应商设备封装: 20-SOP
包装: 管件
配用: W681513DK-ND - KIT DEVELOPMENT FOR W681513
W681512DK-ND - KIT DEVELOPMENT FOR W681512
W681511DK-ND - KIT DEVELOPMENT FOR W681511
W681512ES-ND - EVALUATION SYSTEM FOR W681512
W681511
Publication Release Date: January 2009
- 8 -
Revision A11
7. FUNCTIONAL DESCRIPTION
W681511 is a single-rail, single channel PCM CODEC for voiceband applications. The CODEC
complies with the specifications of the ITU-T G.712 recommendation. The CODEC also includes a
complete
μ-Law and A-Law compander. The μ-Law and A-Law companders are designed to comply
with the specifications of the ITU-T G.711 recommendation.
The block diagram in section 3 shows the main components of the W681511. The chip consists of a
PCM interface, which can process long and short frame sync formats, as well as GCI and IDL formats.
The pre-scaler of the chip provides the internal clock signals and synchronizes the CODEC sample
rate with the external frame sync frequency.
The power conditioning block provides the internal
power supply for the digital and the analog section, while the voltage reference block provides a
precision analog ground voltage for the analog signal processing.
The main CODEC block diagram
is shown in section 3.
Figure 7.1 The W681511 Signal Path
7.1. Transmit Path
The A-to-D path of the CODEC contains an analog input amplifier with externally configurable gain
setting (see application examples in section 11). The device has an input operational amplifier whose
output is the input to the encoder section. If the input amplifier is not required for operation it can be
powered down and bypassed. In that case a single ended input signal can be applied to the AO pin or
the AI- pin. The AO pin becomes high input impedance when the input amplifier is powered down. The
input amplifier can be powered down by connecting the AI+ pin to VDD or VSS. The AO pin is selected
PAO+
PAO
8
μ/A-
Cont
AI+
AI -
w
μ/A-
Cont
ol
AO
+
RO+
-
VA
G
Ant-Aliasi
Filter
=
H
Ant
i
-Aliasi
n
Filter
fC = 200
H
High
Pas
Filt
Smoot
nFilter
2
H
Smoot
nFilter
1
8
μ/A
Control
8
μ/A-
Control
PAI
VAG
Ant-Aliasing
Filter
-
Aliasing
Filter
Ant-
Filter
High Pass
Filter
Smoothing
Filter
Smoothing
Filter
Receive Path
Transmit Path
+
-
+
-
A/D
Converter
D/A
Converter
fC= 3400Hz
C
= 200Hz
f
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相关代理商/技术参数
参数描述
W681511SG TR 功能描述:IC VOICEBAND CODEC 5V 1CH 20SOP RoHS:是 类别:集成电路 (IC) >> 接口 - 编解码器 系列:- 标准包装:2,500 系列:- 类型:立体声音频 数据接口:串行 分辨率(位):18 b ADC / DAC 数量:2 / 2 三角积分调变:是 S/N 比,标准 ADC / DAC (db):81.5 / 88 动态范围,标准 ADC / DAC (db):82 / 87.5 电压 - 电源,模拟:2.6 V ~ 3.3 V 电压 - 电源,数字:1.7 V ~ 3.3 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-WFQFN 裸露焊盘 供应商设备封装:48-TQFN-EP(7x7) 包装:带卷 (TR)
W681512 制造商:WINBOND 制造商全称:Winbond 功能描述:SINGLE-CHANNEL VOICEBAND CODEC
W681512DK 功能描述:KIT DEVELOPMENT FOR W681512 RoHS:否 类别:编程器,开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信,线路接口单元(LIU) 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板,电源,线缆,CD 其它名称:82EBV2081
W681512ES 功能描述:EVALUATION SYSTEM FOR W681512 RoHS:否 类别:编程器,开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK(80-QFP ZIF 插口) 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035
W681512R 功能描述:IC VOICEBAND CODEC 5V 1CH 20SSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 编解码器 系列:- 标准包装:2,500 系列:- 类型:立体声音频 数据接口:串行 分辨率(位):18 b ADC / DAC 数量:2 / 2 三角积分调变:是 S/N 比,标准 ADC / DAC (db):81.5 / 88 动态范围,标准 ADC / DAC (db):82 / 87.5 电压 - 电源,模拟:2.6 V ~ 3.3 V 电压 - 电源,数字:1.7 V ~ 3.3 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-WFQFN 裸露焊盘 供应商设备封装:48-TQFN-EP(7x7) 包装:带卷 (TR)