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參數(shù)資料
| 型號(hào)： | LM4550 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | Codec |
| 英文描述： | AC ’97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound |
| 中文描述： | 交流\u0026#39;97活2.1多聲道音頻編解碼器的立體聲耳機(jī)放大器，采樣率轉(zhuǎn)換和國家3D聲音 |
| 文件頁數(shù)： | 12/25頁 |
| 文件大小： | 507K |
| 代理商： | LM4550 |
Pin Descriptions
(Continued)
POWER SUPPLIES AND REFERENCES
(Continued)
Name
Pin
I / O
Functional Description
AFILT2
30
O
This pin is not used and should be left open (NC). However, a capacitor to ground on this pin
is permitted - it will not affect performance.
These pins are used to complete the National 3D Sound circuit. Connect a 0.022μF capacitor
between pins 3DP and 3DN. The National 3D Sound can be turned on and off via bit D13 in
control register 20h. This is a fixed-depth type stereo enhance circuit, thus writing to register
22h has no effect. If National 3D Sound is not needed, then these pins should be left as no
connect (NC).
3DP, 3DN
33,34
O
Typical Performance Characteristics
ADC Noise Floor
DAC Noise Floor
10097215
10097216
Analog Loopthru
Noise Floor
ADC Frequency
Response
10097218
10097219
L
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| LM4550BVH/NOPB | 制造商:Texas Instruments 功能描述:Audio Codec IC |
| LM4550BVHX | 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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