參數(shù)資料
型號(hào): LM4935
廠商: National Semiconductor Corporation
元件分類(lèi): 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(jī)和揚(yáng)聲器放大器的高效率和多功能模數(shù)轉(zhuǎn)換器
文件頁(yè)數(shù): 24/112頁(yè)
文件大?。?/td> 5017K
代理商: LM4935
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
24
相關(guān)PDF資料
PDF描述
LM4935WL Audio Sub-System with Dual-Mode Stereo Headphone and Mono High Efficiency Loudspeaker Amplifiers and Multi-Purpose ADC
LM4935WLX Audio Sub-System with Dual-Mode Stereo Headphone and Mono High Efficiency Loudspeaker Amplifiers and Multi-Purpose ADC
LM4936 Stereo 2W Audio Power Amplifiers with Volume Control and Selectable Control Interface (SPI or I2C)
LM4951 Wide Voltage Range 1.8 Watt Audio Amplifier
LM4953 Ground-Referenced, Ultra Low Noise, Ceramic Speaker Driver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM49350 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:High Performance Audio Codec Sub-System with a Ground-Referenced Stereo Headphone Amplifier
LM49350RL 制造商:Texas Instruments 功能描述:Audio Codec 1ADC / 1DAC 36-Pin uSMD T/R 制造商:Texas Instruments 功能描述:AUDIO CODEC SUBSYSTEM 36MICRO SMDXT
LM49350RL/NOPB 功能描述:接口—CODEC Hi Perf Audio Codec Subsystem RoHS:否 制造商:Texas Instruments 類(lèi)型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類(lèi)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
LM49350RL/NOPB 制造商:Texas Instruments 功能描述:Audio Codec IC
LM49350RLEVAL 功能描述:音頻 IC 開(kāi)發(fā)工具 LM49350RL EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類(lèi)型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V