CDB4272開發(fā)板套件編程器的評(píng)估演示板及套件規(guī)格書PDF中文資料

CDB4272屬于開發(fā)板套件編程器的評(píng)估演示板及套件。由凌云邏輯制造生產(chǎn)的CDB4272評(píng)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(píng)估某些重點(diǎn)器件的性能或特性。評(píng)估方法通常有完善的文檔說明，并且視乎具體情況由評(píng)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(duì)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(píng)估平臺(tái)可組合為一個(gè)單獨(dú)的產(chǎn)品系列。

General Description

The CS4272 is a high-performance, integrated audio CODEC. The CS4272 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.

The D/A offers a volume control that operates with a 1 dB step size. It incorporates selectable soft ramp and zero crossing transition functions to eliminate clicks and pops.

The D/A’s integrated digital mixing functions allow a variety of output configurations ranging from a channel swap to a stereo-to-mono downmix.

Standard 50/15 μs de-emphasis is available for sampling rates of 32, 44.1, and 48 kHz for compatibility with digital audio programs mastered using the 50/15 μs pre-emphasis technique.

D/A Features

? High Performance

– 114 dB Dynamic Range

– -100 dB THD+N

? Up to 192 kHz Sampling Rates

? Differential Analog Architecture

? Volume Control with Soft Ramp

– 1 dB Step Size

– Zero Crossing Click-free Transitions

? Selectable Digital Filters

– Fast and Slow Roll Off

? ATAPI Mixing Functions

? Selectable Serial Audio Interface Formats

– Left Justified up to 24-bit

– I2S up to 24-bit

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

? Control Output for External Muting

? Selectable 50/15 μs De-emphasis

A/D Features

? High Performance

– 114 dB Dynamic Range

– -100 dB THD+N

? Up to 192 kHz Sampling Rates

? Differential Analog Architecture

? Multi-bit Delta Sigma Conversion

? High-pass Filter or DC Offset Calibration

? Low-Latency Digital Anti-alias Filtering

? Automatic Dithering of 16-bit Data

? Selectable Serial Audio Interface Formats

– Left Justified up to 24-bit

– I2S up to 24-bit

System Features

? Direct Interface with 5V to 2.5V Logic Levels

? Internal Digital Loopback

? On-chip Oscillator

? Stand-Alone or Control Port Functionality