CDB42L55開發(fā)板套件編程器的評估演示板及套件規(guī)格書PDF中文資料

CDB42L55屬于開發(fā)板套件編程器的評估演示板及套件。由凌云邏輯制造生產(chǎn)的CDB42L55評估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過驗(yàn)證的實(shí)施環(huán)境中評估某些重點(diǎn)器件的性能或特性。評估方法通常有完善的文檔說明，并且視乎具體情況由評估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點(diǎn)器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對于數(shù)量特別多或類別獨(dú)特的器件類別(如 ADC、DAC 和開關(guān)模式電源)，評估平臺(tái)可組合為一個(gè)單獨(dú)的產(chǎn)品系列。

GENERAL DESCRIPTION

The CS42L55 is a highly integrated, 24-bit, ultra-low power stereo CODEC based on multi-bit delta-sigma modulation. Both the ADC and DAC offer many features suitable for low power portable system applications.

DIGITAL to ANALOG FEATURES

? 5 mW Stereo Playback Power Consumption

? 99 dB Dynamic Range (A-wtd)

? -86 dB THD+N

? Digital Signal Processing Engine

– Bass & Treble Tone Control, De-Emphasis

– Master Volume Control (+12 to -102 dB in 0.5 dB steps)

– Soft-Ramp & Zero-Cross Transitions

– Programmable Peak-Detect and Limiter

– Beep Generator w/Full Tone Control

ANALOG to DIGITAL FEATURES

? 3.5 mW Stereo Record Power Consumption

? 95 dB Dynamic Range (A-wtd)

? -87 dB THD+N

? 2:1 Stereo Input MUX

? Analog Programmable Gain Amplifier (PGA) (+12 to -6 dB in 0.5 dB steps)

? +20 dB Boost

? Programmable Automatic Level Control (ALC)

– Noise Gate for Noise Suppression

– Programmable Threshold & Attack/Release Rates

? Independent ADC Channel Control

? Digital Vol. Ctl. (0 to -96 dB in 1 dB steps)

? High-Pass Filter Disable for DC Measurements

? Pseudo Differential Inputs

Stereo Headphone and Line Amplifiers

? Step-Down/Inverting Charge Pump

? Class H Amplifier - Automatic Supply Adj.

– High Efficiency

– Low EMI

? Pseudo-Differential Ground-Centered Outputs

? High HP Power Output at -75 dB THD+N

– 2 x 20 mW Into 32 Ω @1.8 V

– 2 x 20 mW Into 16 Ω @1.8 V

? 1 VRMS Line Output @1.8 V

? Analog Vol. Ctl. (+12 to -55 dB in 1 dB steps)

? Analog In to Analog Out Passthrough

? Pop and Click Suppression

APPLICATIONS

? HDD & Flash-Based Portable Audio Players

? MD Players/Recorders

? PDAs

? Personal Media Players

? Portable Game Consoles

? Digital Voice Recorders

? Digital Camcorders

? Digital Cameras

? Smart Phones