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參數(shù)資料
| 型號： | AD1987JCPZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CODEC SOUNDMAX HD 48-LFCSP |
| 標(biāo)準(zhǔn)包裝： | 85 |
| 系列： | SoundMAX® |
| 類型： | 音頻編解碼器，HD |
| 數(shù)據(jù)接口： | 串行 |
| 分辨率（位）： | 24 b |
| ADC / DAC 數(shù)量： | 4 / 8 |
| 三角積分調(diào)變： | 無 |
| 電壓 - 電源，模擬： | 3.13 V ~ 3.46 V |
| 電壓 - 電源，數(shù)字： | 2.97 V ~ 3.63 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 48-LFCSP-VQ（7x7） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 776 (CN2011-ZH PDF) |
AD1987
Rev. A
|
Page 11 of 20
|
March 2008
POWER AND GROUND
DVIO 3.3 V ±10%
3
I
Digital Supply I/O. Connect to the I/O voltage used for the HD audio controller
signals.
DVSS
4, 7
I
Digital Supply Return (Ground).
DVDD 3.3 V ±10%
9
I
Digital Supply Voltage 3.3 V. This is regulated down to Pin 1 to supply the internal
digital core.
AVDD 3.3 V ±5%
25, 38
I
CAUTION: DO NOT APPLY 5.0 V TO THESE PINS!
Analog Supply Voltage 3.3 V ONLY.
Note: AVDD supplies should be well regulated and filtered as supply noise degrades
audio performance.
MIC_BIAS_IN
33
I
Source for Microphone Bias Boost Circuitry.
Connect this pin to 5.0 V via a low-pass filter. When connected this way, the AD1987
is capable of providing +3.95 V as a mic bias to all of the mic bias pins.
If 5 V is not available, connect this pin to +3.3 V (AVDD) via a low-pass filter. The
AD1987 produces a mic bias voltage relative to the AVDD supply
(typically 3.0 V @ AVDD = 3.3 V).
AVSS
26, 42
I
Analog Supply Return (Ground). AVSS should be connected to DVSS using a
conductive trace under, or close to, the AD1987.
Table 5. AD1987 Pin Descriptions (Continued)
Mnemonic
Pin No.
Function
Description
The symbols used in this table are defined as: I = Input, O = Output, LI = Line level input, LO = Line level output, HP = Output capable of driving
headphone load, MIC = Input supports microphones with MIC bias and boost amplifier, SWAP = Outputs can swap L/R channels (typically used
to support C/LFE or shared C/LFE function).
OBSOLETE
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AD1987JCPZ-RL | 制造商:Analog Devices 功能描述: |
| AD1988A | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Definition Audio SoundMAX㈢ Codec |
| AD1988AJCPZ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD1988AJCPZ-RL | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Definition Audio SoundMAX㈢ Codec |
| AD1988AJSTZ | 制造商:Analog Devices 功能描述:Audio Codec 6ADC / 10DAC 24-Bit 48-Pin LQFP |
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