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參數(shù)資料
型號(hào)： CDB42L51
廠商： Cirrus Logic Inc
文件頁(yè)數(shù)： 19/43頁(yè)
文件大?。?/td> 0K
描述： BOARD EVAL FOR CS42L51 CODEC
標(biāo)準(zhǔn)包裝： 1
主要目的： 音頻編解碼器
嵌入式： 是，其它
已用 IC / 零件： CS42L51，CS8406，CS8415
主要屬性： 立體聲數(shù)字音頻發(fā)射器和接收器
次要屬性： 圖形用戶界面，S/PDIF 接口
已供物品： 板，CD
相關(guān)產(chǎn)品： CS42L51-DNZR-ND - IC CODEC STEREO W/HDPN AMP 32QFN
598-1627-ND - IC CODEC STEREO W/HDPN AMP 32QFN
CS42L51-CNZR-ND - IC CODEC LOW-V 24BIT 32-QFP
598-1045-ND - IC CODEC STEREO W/HDPN AMP 32QFN
其它名稱： 598-1005
26
DS679F1
CS42L51
4. APPLICATIONS
4.1
Overview
4.1.1
Architecture
The CS42L51 is a highly integrated, low power, 24-bit audio CODEC comprised of stereo analog-to-digital
converters (ADC), and stereo digital-to-analog converters (DAC) designed using multi-bit delta-sigma
techniques. The DAC operates at an oversampling ratio of 128Fs and the ADC operates at 64Fs, where
Fs is equal to the system sample rate. The different clock rates maximize power savings while maintaining
high performance. The CODEC operates in one of four sample rate speed modes: Quarter, Half, Single
and Double. It accepts and is capable of generating serial port clocks (SCLK, LRCK) derived from an input
Master Clock (MCLK).
4.1.2
Line & MIC Inputs
The analog input portion of the CODEC allows selection from and configuration of multiple combinations
of stereo and microphone (MIC) sources. Six line inputs with configuration for two MIC inputs (or one MIC
input with common mode rejection), two MIC bias outputs and independent channel control (including a
high-pass filter disable function) are available. A Programmable Gain Amplifier (PGA), MIC boost, and Au-
tomatic Level Control (ALC), with noise gate settings, provide analog gain and adjustment. Digital volume
controls, including gain, boost, attenuation and inversion are also available.
4.1.3
Line & Headphone Outputs
The analog output portion of the D/A includes a headphone amplifier capable of driving headphone and
line-level loads. An on-chip charge pump creates a negative headphone supply allowing a full-scale out-
put swing centered around ground. This eliminates the need for large DC-Blocking capacitors and allows
the amplifier to deliver more power to headphone loads at lower supply voltages. Eight gain settings for
the headphone amplifier are available.
4.1.4
Signal Processing Engine
A signal processing engine is available to process serial input D/A data before output to the DAC. The
D/A data has independent volume controls and mixing functions such as mono mixes and left/right chan-
nel swaps. A Tone Control provides bass and treble at four selectable corner frequencies. An automatic
level control provides limiting capabilities at programmable attack and release rates, maximum thresholds
and soft ramping. A 15/50
s de-emphasis filter is also available at a 44.1 kHz sample rate.
4.1.5
Beep Generator
A beep may be generated internally at select frequencies across approximately two octave major scales
and configured to occur continuously, periodically or at single time intervals controlled by the user. Volume
may be controlled independently.
4.1.6
Device Control (Hardware or Software Mode)
In Software Mode, all functions and features may be controlled via a two-wire IC or three-wire SPI control
port interface. In Hardware Mode, a limited feature set may be controlled via stand-alone control pins.
4.1.7
Power Management
Two Software Mode control registers provide independent power-down control of the ADC, DAC, PGA,
MIC pre-amp and MIC bias, allowing operation in select applications with minimal power consumption.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CDB42L51/FAE 制造商:Cirrus Logic 功能描述:EVAL BOARD FOR THE CS42L51 PORTABLE STEREO CODEC - Bulk
CDB42L52 功能描述:音頻 IC 開發(fā)工具 Eval Bd LP CODEC w/classD Spkr Driver RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
CDB42L52/FAE 制造商:Cirrus Logic 功能描述:EVAL BD LOW-VOLTAGE STEREO CODEC - Bulk
CDB42L55 功能描述:音頻 IC 開發(fā)工具 Eval Bd Ultra Low PWR Stereo Codec RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
CDB42L56 功能描述:音頻 IC 開發(fā)工具 Eval Bd 24Bit Ultra LP Ster CD w/clH HP RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V
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