PCM1741E/2K屬于集成電路（IC）的ADC/DAC-特殊用途。由美國(guó)德州儀器公司制造生產(chǎn)的PCM1741E/2KADC/DAC - 特殊用途該產(chǎn)品族中的產(chǎn)品可用于模擬和數(shù)字表示的信息轉(zhuǎn)換，適用于特定用例，或集成了通用數(shù)據(jù)轉(zhuǎn)換器中不常見的其他功能。例如針對(duì)超聲或汽車?yán)走_(dá)應(yīng)用集成了低噪聲放大器和可變?cè)鲆婕?jí)的器件、注重音頻和視頻的產(chǎn)品、在段碼式顯示器上集成顯示測(cè)量值功能的器件、集成輸入輸出電氣隔離的器件等。

FEATURES

24-BIT RESOLUTION

ANALOG PERFORMANCE (VCC = +3.3V):

Dynamic Range: 98dB typ

SNR: 98dB typ

THD+N: 0.005% typ

Full-Scale Output: 2.05Vp-p typ

8x OVERSAMPLING DIGITAL FILTER:

Stopband Attenuation: –55dB

Passband Ripple: ±0.03dB

SAMPLING FREQUENCY: 5kHz to 100kHz

SYSTEM CLOCK: 256, 384, 512, 768fS with

Auto Detect

ACCEPTS 16-, 18-, 20-, AND 24-BIT AUDIO

DATA

DATA FORMATS: Standard, I2S, and Left-

Justified

USER-PROGRAMMABLE MODE CONTROLS:

Digital Attenuation: 0dB to –63dB, 0.5dB/Step

Digital De-Emphasis

Digital Filter Roll-Off: Sharp or Slow

Soft Mute

Zero Flags for Each Output

3.3V SINGLE POWER SUPPLY

5V TOLERANT DIGITAL INPUTS

SMALL SSOP-16 PACKAGE

APPLICATIONS

AV RECEIVERS

DVD MOVIE PLAYERS

DVD ADD-ON CARDS FOR HIGH-END PCs

HDTV RECEIVERS

CAR AUDIO SYSTEMS

OTHER APPLICATIONS REQUIRING 24-BIT

AUDIO

DESCRIPTION

The PCM1741 is a CMOS, monolithic, integrated circuit

which includes stereo Digital-to-Analog Converters

(DACs) and support circuitry in a small SSOP-16 package.

The data converters utilize Texas Instrument’s enhanced

multilevel delta-sigma architecture that employs fourthorder

noise shaping and 8-level amplitude quantization to

achieve excellent dynamic performance and improved tolerance

to clock jitter. The PCM1741 accepts industry standard

audio data formats with 16- to 24-bit data, providing easy

interfacing to audio DSP and decoder chips. Sampling rates

up to 100kHz are supported. A full set of user-programmable

functions are accessible through a 3-wire serial

control port that supports register write functions.