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參數(shù)資料
| 型號(hào)： | LM4549VH |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | CAPACITOR, CLASS Y2 100NFCAPACITOR, CLASS Y2 100NF; Capacitance:100nF; Voltage rating, AC:250V; Voltage rating, DC:2500V; Capacitor dielectric type:Polypropylene; Series:B81122; Tolerance, +:20%; Tolerance, -:20%; Temp, op. |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, TQFP-48 |
| 文件頁(yè)數(shù)： | 7/18頁(yè) |
| 文件大小： | 324K |
| 代理商： | LM4549VH |
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Connection Diagram
Pin Description
Analog I/O
Name
Pin
I / O
Functional Description
This is a mono input which gets summed into both the stereo line out and the true line level
out after the National 3D Sound block. The PC_BEEP level can be adjusted from 0dB to
45dB in 3dB steps, or muted, via register 0Ah. This input is directly connected to the line
output while the reset pin is held active low to allow power on self test tones to be heard
through the audio system.
This is a mono input which gets summed into both the stereo line out and the true line level
out after the National 3D Sound block. The PHONE level can be adjusted from +12dB to
34.5dB in 1.5dB steps as well as muted via register 0Ch.
This line level input can be routed through the Input Mux and recorded by the left ADC. In
addition, this analog input gets summed into the left output stream. The amount of AUX_L
signal mixed in the left output stream can be adjusted from +12dB to 34.5dB in 1.5dB steps
as well as muted via register 16h.
PC_BEEP
12
I
PHONE
13
I
AUX_L
14
I
DS101035-2
Top View
Order Number LM4549VH
See NS Package Number VBH48A
www.national.com
7
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PDF描述 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4549VHX | 制造商:Texas Instruments 功能描述: |
| LM4550 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC ’97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound |
| LM4550B | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC 97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound |
| LM4550BVH | 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 |
| LM4550BVH/NOPB | 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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