參數(shù)資料
型號： LM4935WLX
廠商： National Semiconductor Corporation
元件分類： ADC
英文描述： Audio Sub-System with Dual-Mode Stereo Headphone and Mono High Efficiency Loudspeaker Amplifiers and Multi-Purpose ADC
中文描述： 音頻子系統(tǒng)的雙模單聲道立體聲耳機和揚聲器放大器的高效率和多功能模數(shù)轉(zhuǎn)換器
文件頁數(shù)： 24/112頁
文件大小： 5017K
代理商： LM4935WLX
12.0 Status & Control Registers
(Continued)
12.4 COMMON CLOCK SETTINGS FOR THE DAC & ADC
The DAC has an over sampling rate of 125 but requires a 250*fs clock at point
B
. This allows a simple clocking solution as it will
work from 12.000 MHz (common in most systems with Bluetooth or USB) at 48 kHz exactly, the following table describes the clock
required at point
B
for various clock sample rates in the different DAC modes:
TABLE 4. Common DAC Clock Frequencies
DAC Sample Rate (kHz)
8
11.025
12
16
22.05
24
32
44.1
48
Clock Required at B (MHz)
2
2.75625
3
4
5.5125
6
8
11.025
12
The ADC has an over sampling ratio of 125 so the table below shows the required clock frequency at point
C
.
TABLE 5. Common ADC Clock Frequencies
ADC Sample Rate (kHz)
8
11.025
12
16
22.05
24
Clock Required at C (MHz)
1
1.378125
1.5
2
2.75625
3
Methods for producing these clock frequencies are described in the PLL Section.
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
LM4936 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Stereo 2W Audio Power Amplifiers with Volume Control and Selectable Control Interface (SPI or I2C)
LM49360 制造商:TI 制造商全稱:Texas Instruments 功能描述:Mono Class D Audio Codec PMU with Ground Referenced Headphone Amplifiers, Earpiece Driver, Audio DSP, 2 Step-Down DC-DC Converters, and 7 LDO Regulators
LM49360RL 制造商:TI 制造商全稱:Texas Instruments 功能描述:Mono Class D Audio Codec PMU with Ground Referenced Headphone Amplifiers, Earpiece Driver, Audio DSP, 2 Step-Down DC-DC Converters, and 7 LDO Regulators
LM49360RLX 制造商:TI 制造商全稱:Texas Instruments 功能描述:Mono Class D Audio Codec PMU with Ground Referenced Headphone Amplifiers, Earpiece Driver, Audio DSP, 2 Step-Down DC-DC Converters, and 7 LDO Regulators
LM4936MH 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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