- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361881 > WM8756EFT (Wolfson Microelectronics) 192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC PDF資料下載
參數(shù)資料
| 型號： | WM8756EFT |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | 192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC |
| 中文描述： | 192kHz的六聲道SACD的兼容的音頻數(shù)模轉(zhuǎn)換器 |
| 文件頁數(shù)： | 20/39頁 |
| 文件大?。?/td> | 330K |
| 代理商： | WM8756EFT |
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頁當前第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頁第35頁第36頁第37頁第38頁第39頁
WM8756
Advance Information
AI Rev 1.3 October 2001
20
With IZD enabled, applying MUTE for 1024 consecutive input samples will cause all outputs to be
connected directly to V
CAP
. Additionally, if 2048 consecutive zero input samples are applied to all 6
channels, and IZD=0, internal analogue mute will be applied. It will be removed as soon as any channel
receives a non-zero input.
The MUTE pin can be used as an input. In this case it performs the same function as the MUTE register
bit. Driving the MUTE pin high will apply a 'soft' mute. Driving it low again, will remove the MUTE
immediately. Note that this hardware mute feature doesn't require the MODE pin to be set high.
MUTE PIN
DESCRIPTION
0
1
Normal Operation
Mute all DAC channels
Enable IZD, Mute becomes an output to indicate when IZD occurs.
floating
A diagram showing how the various Mute modes interact is shown below in Figure 13.
IZD (Register Bit)
AUTOMUTED
(Internal Signal)
10k
MU (Register Bit)
SOFTMUTE
(Internal
Signal)
MUTE
PIN
Figure 13 Selection Logic for MUTE Modes
The MUTE pin behaves as a bi-directional function, that is, as an input to select MUTE or NOT-MUTE, or
as an output indication of automute operation. MUTE is active high; taking the pin high causes the filters
to soft mute, ramping down the audio signal over a few milliseconds. Taking MUTE low again allows data
into the filter.
The automute function detects a series of zero value audio samples of 1024 samples long being applied
to all 6 channels. After such an event, a latch is set whose output (AUTOMUTED) is wire OR’ed through a
10kohm resistor to the MUTE pin. Thus if the MUTE pin is not being driven, the automute function will
assert MUTE.
If MUTE is tied low, AUTOMUTED is overridden and will not mute. If MUTE is driven from a source
follower, or diode, then both MUTE and automute functions are available. If MUTE is not driven,
AUTOMUTED appears as a weak output (10k source impedance) so can be used to drive external mute
circuits. The automute signal is AND’ed with IZD, this qualified mute signal then being OR’ed into the
SOFTMUTE control. Therefore, in software mode, automute operation may be controlled with IZD control
bit.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| WM8756 | 192KHZ SIX CHANNEL SACD COMPATIBLE AUDIO DAC |
| WM8762 | 24-bit 192kHz Stereo DAC |
| WM8762ED | 24-bit 192kHz Stereo DAC |
| WM8768GEDS | 24-bit, 192kHz 8-Channel DAC |
| WM8768 | 24-bit, 192kHz 8-Channel DAC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| WM-875-899-PK | 制造商:Brady Corporation 功能描述:CONSECUTIVE NOS. - LEGEND: 875-899 |
| WM8758B | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:Stereo CODEC with Headphone Driver and Line Out |
| WM8758BGEFL/RV | 功能描述:接口—CODEC Stereo CODEC plus PCM CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| WM8758BGEFL/V | 功能描述:接口—CODEC Stereo CODEC plus PCM CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| WM8758BLGEFL/RV | 功能描述:接口—CODEC Stereo CODEC Plus PCM CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。