AD1934屬于集成電路（IC）的數(shù)模轉換器（DAC）。由亞德諾半導體技術有限公司制造生產的AD1934數(shù)模轉換器（DAC）數(shù)模轉換器（DAC、D/A、D2A 或 D 轉 A）可將數(shù)字信號轉換為緩沖或無緩沖的模擬電壓或電流。DAC 架構是否適合特定應用，要取決于分辨率和采樣頻率。DAC 通常用于音樂播放器，將數(shù)字數(shù)據(jù)流轉換為模擬音頻流。它們還用于電視和手機，將數(shù)字視頻數(shù)據(jù)轉換為模擬視頻信號，再連接到屏幕驅動器，以顯示單色或彩色圖像。

GENERAL DESCRIPTION

The AD1934 is a high performance, single chip that provides eight digital-to-analog converters (DACs) with single-ended output using the Analog Devices, Inc., patented multibit sigma-delta (Σ-Δ) architecture. An SPI port is included, allowing a microcontroller to adjust volume and many other parameters. The AD1934 operates from 3.3 V digital and analog supplies. The AD1934 is available in a 48-lead (single-ended output) LQFP. Other members of this family include a differential DAC output version.

FEATURES

PLL generated or direct master clock

Low EMI design

108 dB DAC dynamic range and SNR

?94 dB THD + N

Single 3.3 V supply

Tolerance for 5 V logic inputs

Supports 24 bits and 8 kHz to 192 kHz sample rates

Single-ended DAC output

Log volume control with autoramp function

SPI? controllable for flexibility

Software-controllable clickless mute

Software power-down

Right-justified, left-justified, I2S, and TDM modes

Master and slave modes up to 16-channel in/out

48-lead LQFP

Qualified for automotive applications

APPLICATIONS

Automotive audio systems

Home theater systems

Set-top boxes

Digital audio effects processors