CDB4245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

CDB4245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CDB4245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)過驗證的實施環(huán)境中評估某些重點器件的性能或特性。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)量特別多或類別獨特的器件類別(如 ADC、DAC 和開關模式電源)，評估平臺可組合為一個單獨的產(chǎn)品系列。

General Description

The CS4245 is a highly integrated stereo audio CODEC. The CS4245 performs stereo analog-to-digital (A/D) and digital-to-analog (D/A) conversion of up to 24-bit serial values at sample rates up to 192 kHz.

D/A Features

? Multi-bit Delta Sigma Modulator

? 104 dB Dynamic Range

? -90 dB THD+N

? Up to 192 kHz Sampling Rates

? Single-Ended Analog Architecture

? Volume Control with Soft Ramp

– 0.5 dB Step Size

– Zero Crossing, Click-Free Transitions

? Popguard? Technology

– Minimizes the Effects of Output Transients

? Filtered Line-Level Outputs

? Selectable Serial Audio Interface Formats

– Left-Justified up to 24-bit

– I2S up to 24-bit

– Right-Justified 16-, 18-, 20-, and 24-bit

? Selectable 50/15 μs De-Emphasis

? Control Output for External Muting

A/D Features

? Multi-bit Delta Sigma Modulator

? 104 dB Dynamic Range

? -95 dB THD+N

? Stereo 6:1 Input Multiplexer

? Programmable Gain Amplifier (PGA)

– ± 12 dB Gain, 0.5 dB Step Size

– Zero Crossing, Click-Free Transitions

? Stereo Microphone Inputs

– +32 dB Gain Stage

– Low-Noise Bias Supply

? Up to 192 kHz Sampling Rates

? Selectable Serial Audio Interface Formats

– Left-Justified up to 24-bit

– I2S up to 24-bit

? High-Pass Filter or DC Offset Calibration

System Features

? Direct Interface with 1.8 V to 5 V Logic Levels

? Optional Asynchronous Serial Port Operation

– Each Serial Port Supports Master or Slave Operation

? Selectable Auxiliary Analog Output

– Allows Analog Monitoring of Either the ADC Input Signal after PGA or DAC Output Signal

? Internal Digital Loopback

? Power-Down Mode

– Available for A/D, D/A, CODEC, Mic Preamplifier

? +3.3 V to +5 V Analog Power Supply

? +3.3 V to +5 V Digital Power Supply

? Supports I2C? and SPITM Control Port Interfaces

? Pin-Compatible with CS5345