PCM1741中文资料98dB SNR 立体声 DAC数据手册TI规格书

描述 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 fourth-order 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.

特性 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