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參數資料
| 型號： | W681512WG |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 編解碼器 |
| 英文描述： | SINGLE-CHANNEL VOICEBAND CODEC |
| 中文描述： | A/MU-LAW, PCM CODEC, PDSO20 |
| 封裝： | 4.40 X 6.50 MM, LEAD FREE, PLASTIC, TSSOP-20 |
| 文件頁數： | 10/38頁 |
| 文件大小： | 305K |
| 代理商： | W681512WG |
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W681512
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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
.
7.3.
P
OWER
M
ANAGEMENT
7.3.1. Analog and Digital Supply
The power supply for the analog and digital parts of the W681512 must be 5V +/- 10%. This supply
voltage is connected to the V
DD
pin. The V
DD
pin needs to be decoupled to ground through a 0.1
μ
F
ceramic capacitor.
7.3.2. Analog Ground Reference Voltage Output
The analog ground reference voltage is available for external reference at the V
AG
pin. This voltage
needs to be decoupled to V
SS
through a 0.01
μ
F to a 0.1
μ
F ceramic capacitor.
7.4.
PCM
I
NTERFACE
The PCM interface is controlled by pins BCLKR, FSR, BCLKT & FST. The input data is received
through the PCMR pin and the output data is transmitted through the PCMT pin. The modes of
operation of the interface are shown in Table 7.3.
BCLKR
FSR
Interface Mode
64 kHz to 4.096 MHz
8 kHz
Long or Short Frame Sync
V
SS
V
SS
V
DD
V
DD
V
SS
V
DD
V
SS
V
DD
ISDN GCI with active channel B1
ISDN GCI with active channel B2
ISDN IDL with active channel B1
ISDN IDL with active channel B2
Table 7.3 PCM Interface mode selections
7.4.1. Long Frame Sync
The Long Frame Sync or Short Frame Sync interface mode can be selected by connecting the
BCLKR or BCLKT pin to a 64 kHz to 4.096 MHz clock and connecting the FSR or FST pin to the 8
kHz frame sync. The device synchronizes the data word for the PCM interface and the CODEC
sample rate on the positive edge of the Frame Sync signal. It recognizes a Long Frame Sync when
the FST pin is held HIGH for two consecutive falling edges of the bit-clock at the BCLKT pin. The
length of the Frame Sync pulse can vary from frame to frame, as long as the positive frame sync edge
occurs every 125
μ
sec. During data transmission in the Long Frame Sync mode, the transmit data pin
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W681512WG TR | 功能描述:IC VOICEBND CODEC 5V 1CH 20TSSOP 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) |
| W681512WG-TR | 制造商:Nuvoton Technology Corp 功能描述:IC VOICEBND CODEC 5V 1CH 20TSSOP |
| W681513 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:5V SINGLE-CHANNEL VOICEBAND CODEC FOR USB APPLICATIONS |
| W681513_05 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:5V SINGLE-CHANNEL VOICEBAND CODEC FOR USB APPLICATIONS |
| W681513DK | 功能描述:KIT DEVELOPMENT FOR W681513 RoHS:否 類別:編程器，開發系統 >> 評估演示板和套件 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 主要目的:電源管理，電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態 LED 已供物品:板 |
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