General Description

The CS4265 is a highly integrated stereo audio CODEC. The CS4265 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

A/D Features

? Multi-Bit Delta Sigma Modulator

? 104 dB Dynamic Range

? -95 dB THD+N

? Stereo 2:1 Input Multiplexer

? Programmable Gain Amplifier (PGA)

– ± 12 dB Gain, 0.5 dB Step Size

– Zero Crossing, Click-Free Transitions

? Pseudo-Differential Stereo Line Inputs

? 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

? Synchronous IEC60958-3 Transmitter

– Up to 192 kHz Sampling Rates

– 75 Ω Drive Capability

? Serial Audio Data Input Multiplexer

? Internal Digital Loopback

? Supports Master or Slave Operation

? Mute Output Control

? 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

? Direct Interface with 1.8 V to 5 V Logic Levels

? Supports I2C? Control Port Interface

CDB4265屬于開發(fā)板，套件，編程器 > 評估和演示板及套件。凌云邏輯制造生產(chǎn)的CDB4265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)，評估平臺可組合為一個單獨(dú)的產(chǎn)品系列。