- 您現在的位置：買賣IC網 > PDF目錄363893 > W681360 (WINBOND ELECTRONICS CORP) 3V SINGLE-CHANNEL 13-BIT LINEAR VOICE-BAND CODEC PDF資料下載
參數資料
| 型號： | W681360 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | Codec |
| 英文描述： | 3V SINGLE-CHANNEL 13-BIT LINEAR VOICE-BAND CODEC |
| 中文描述： | 3V的單通道13位線性語音頻帶編解碼器 |
| 文件頁數： | 10/34頁 |
| 文件大?。?/td> | 348K |
| 代理商： | W681360 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁當前第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁
W681360
Publication Release Date: September 2005
- 10 -
Revision A.2
AI+
AI-
Vin+
Vin-
AO
Ri
VAG
-
+
Ri
Ro
Gin = Ro/Ri
Ro
FIGURE 7.3: INPUT OPERATIONAL AMPLIFIER GAIN – DIFFERENTIAL INPUT
The gain of the operational amplifier will be typically be set to 30dB for microphone interface circuits.
However the gain may be used for more than 30dB but this will require a compact layout with minimal
trace lengths and good isolation from noise sources. It is also recommended that the layout be as
symmetrical as possible as imbalances work against the noise canceling advantages of the differential
design.
7.2. Receive Path
The 13-bit digital input samples for the D-to-A path are serially shifted in by the PCM interface and
converted to parallel data bits. During every cycle of the frame sync FSR, the parallel data bits are fed
through the 13-bit linear DAC and converted to analog samples. The analog samples are filtered by a
low-pass smoothing filter with a 3.4kHz cut-off frequency, according to the ITU-T G.712 specification.
A sin(x)/x compensation is integrated with the low pass smoothing filter. The output of this filter is
buffered to provide the receive output signal RO-. The output may be also be attenuated when the
device is in the receive path adjust mode. If the device is operated half–channel with the FST pin
clocking and FSR pin held LOW, the receive filter input will be connected to the V
AG
voltage. This
minimizes transients at the RO– pin when full–channel operation is resumed by clocking the FSR pin.
The RO- output can be externally connected to the PAI pin to provide a differential output with high
driving capability at the PAO+ and PAO- pins. By using external resistors various gain settings of this
output amplifier can be achieved. If the transmit power amplifier is not in use, it can be powered down
by connecting PAI to V
DD
. The bias voltage and signal reference of the PAO+ & PAO– outputs is the
V
AG
pin. The V
AG
pin cannot source or sink as much current as these pins, and therefore low
impedance loads must be placed between PAO+ and PAO–. The PAO+ and PAO– differential drivers
are also capable of driving a 100
resistive load or a 100nF piezoelectric transducer in series with a
20
resister with a small increase in distortion. These drivers may be used to drive resistive loads of
32
when the gain of PAO– is set to 1/4 or less.
相關PDF資料 |
PDF描述 |
|---|---|
| W681360R | 3V SINGLE-CHANNEL 13-BIT LINEAR VOICE-BAND CODEC |
| W681360RG | 3V SINGLE-CHANNEL 13-BIT LINEAR VOICE-BAND CODEC |
| W681360S | 3V SINGLE-CHANNEL 13-BIT LINEAR VOICE-BAND CODEC |
| W681360SG | 3V SINGLE-CHANNEL 13-BIT LINEAR VOICE-BAND CODEC |
| W681360W | 3V SINGLE-CHANNEL 13-BIT LINEAR VOICE-BAND CODEC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W681360DK | 功能描述:KIT DEVELOPMENT FOR W681360 RoHS:否 類別:編程器，開發系統 >> 評估演示板和套件 系列:- 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| W681360ES | 功能描述:KIT EVAL FOR W681360 RoHS:否 類別:編程器，開發系統 >> 過時/停產零件編號 系列:- 標準包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關產品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| W681360R | 制造商:WINBOND 制造商全稱:Winbond 功能描述:3V SINGLE-CHANNEL 13-BIT LINEAR VOICE-BAND CODEC |
| W681360RG | 功能描述:IC VOICEBAND CODEC 3V 1CH 20SSOP 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 數據接口:串行 分辨率（位）:18 b ADC / DAC 數量:2 / 2 三角積分調變:是 S/N 比，標準 ADC / DAC (db):81.5 / 88 動態范圍，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) |
| W681360RG TR | 功能描述:IC VOICEBAND CODEC 3V 1CH 20SSOP 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 數據接口:串行 分辨率（位）:18 b ADC / DAC 數量:2 / 2 三角積分調變:是 S/N 比，標準 ADC / DAC (db):81.5 / 88 動態范圍，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) |
發布緊急采購，3分鐘左右您將得到回復。