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参数资料
| 型号： | W681511DK |
| 厂商： | Nuvoton Technology Corporation of America |
| 文件页数： | 31/32页 |
| 文件大小： | 0K |
| 描述： | KIT DEVELOPMENT FOR W681511 |
| 标准包装： | 1 |
| 主要目的： | 音频编解码器 |
| 已用 IC / 零件： | W681511 |
| 已供物品： | 板，电源 |
| 相关产品： | W681513SG-ND - IC VOICEBAND CODEC 5V USB 20SOP W681512WG-ND - IC VOICEBND CODEC 5V 1CH 20TSSOP W681512SG-ND - IC VOICEBAND CODEC 5V 1CH 20SOP W681512RG-ND - IC VOICEBAND CODEC 5V 1CH 20SSOP W681511SG-ND - IC VOICEBAND CODEC 5V 1CH 20SOP W681513SG TR-ND - IC VOICEBAND CODEC 5V USB 20SOP W681512WG TR-ND - IC VOICEBND CODEC 5V 1CH 20TSSOP W681512SG TR-ND - IC VOICEBAND CODEC 5V 1CH 20SOP W681512RG TR-ND - IC VOICEBAND CODEC 5V 1CH 20SSOP W681511SG TR-ND - IC VOICEBAND CODEC 5V 1CH 20SOP 更多... |
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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 |
|---|---|
| W681511IS | 制造商:WINBOND 制造商全称:Winbond 功能描述:SINGLE-CHANNEL VOICEBAND CODEC |
| W681511S | 功能描述:IC VOICEBAND CODEC 5V 1CH 20SOP 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) |
| W681511SG | 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) |
| 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 |
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