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參數(shù)資料
| 型號(hào)： | 92HD71B5X5PRGXYYX |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 編解碼器 |
| 英文描述： | PCM CODEC, PQFP48 |
| 封裝： | ROHS COMPLIANT, QFP-48 |
| 文件頁(yè)數(shù)： | 13/193頁(yè) |
| 文件大?。?/td> | 2572K |
| 代理商： | 92HD71B5X5PRGXYYX |
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11
92HD71B5
V 1.0, 01/08
4-CHANNEL HD AUDIO CODECS OPTIMIZED FOR LOW POWER
92HD71B5
4-CHANNEL HD AUDIO CODECS OPTIMIZED FOR LOW POWER
PC AUDIO
1.4.
Detailed Description
1.4.1.
Low-voltage High Definition Audio Link Signaling
The 92HD71B5 is compatible with either 1.5 V or 3.3 V High Definition Audio Link signaling; the volt-
age selection is performed dynamically based on the input voltage of DVDD_IO. Note that DVDD_IO
is not a logic configuration pin but provides the digital power supply to be used for the High Definition
Audio Link signals.
When in 1.5 V mode, the 92HD71B5 can correctly decode BITCLK, SYNC, RESET# and SDO
because they operate at 1.5 V. Additionally, it will drive SDI_CODEC at 1.5 V. None of the GPIOs are
affected, as they always function at their nominal voltage (DVDD or AVDD).
1.4.2.
Port Functionality
Single function (Input only / output only) ports allow for the highest possible performance.
Port A supports
Headphone Out
Line Out
Port D supports
Line Out
Ports B and C support
Line In
Mic with 0/10/20/30/40 dB Mic boost4
Mono Output cannot be reconfigured
Note4: 40dB boost requires using the IDT driver. When the 40dB mic boost feature is enabled, addi-
tional gain increases greater than 6dB may result in significant audio quality degradation of the
microphone audio input. In particular, when the 40dB MIC boost is active, the SNR, THD+N and DC
offset will significantly degrade regardless of the input signal level.
1.4.3.
Port Characteristics
Ports are designed to be dedicated inputs or outputs only. Universal (Bi-directional) jacks are not
supported. Port A is designed to drive a set of 32 ohm (nominal) headphones or a 10K (nominal)
load with on board shunt resistance as low as 20K ohms (typical - used to maintain coupling CAP
bias.) Line Level outputs are intended to drive an external 10K speaker load (nominal) and an on
board shunt resistor of 20-47K (nominal). However, applications may support load impedances of 5K
ohms and above. Input ports are 47K impedance (nominal) at the pin.
DAC full scale outputs and intended full scale input levels are 1V rms. Line output ports and Head-on
output ports on the 92HD71B5 may be configured for +3dBV full scale output levels by using a ven-
dor specific verb.
Output ports are always on to prevent pops/clicks associated with charging and discharging output
coupling capacitors. This maintains proper bias on output coupling caps even in D3 as long as AVDD
is available. Unused ports should be left unconnected. When updating existing designs to use
92HD71B5, ensure that there are no conflicts between the output ports on 92HD71B5 and existing
circuitry.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 92HD71B7 | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:4-CHANNEL HD AUDIO CODEC OPTIMIZED FOR LOW POWER |
| 92HD71B7X3NLGXB3X | 功能描述:接口—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 |
| 92HD71B7X3NLGXB3X8 | 制造商:Integrated Device Technology Inc 功能描述:Audio Codec 2ADC / 2DAC 24-Bit 48-Pin VFQFPN EP T/R |
| 92HD71B7X3PRGXB3X | 功能描述:接口—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 |
| 92HD71B7X3PRGXB3X8 | 功能描述:接口—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 |
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