PCM1742KE Datasheet PDF - TI

●DESCRIPTION

●The PCM1742 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 use Texas Instruments" enhanced multilevel delta-sigma archi-tecture that employs fourth-order noise shaping and 8-level amplitude quantization to achieve excellent dynamic performance and improved tolerance to clock jitter.

●FEATURES

●• 24-Bit Resolution

●• Analog Performance (VCC = 5 V):

●– Dynamic Range:

●  • 106 dB, Typical (PCM1742KE)

●  • 100 dB, Typical (PCM1742E)

●– SNR:

●  • 106 dB, Typical (PCM1742KE)

●  • 100 dB, Typical (PCM1742E)

●– THD+N:

●  • 0.002%, Typical (PCM1742KE)

●  • 0.003%, Typical (PCM1742E)

●– Full-Scale Output: 3.1 Vp-p, Typical

●• 4x/8x Oversampling Digital Filter:

●  Stop-Band Attenuation: –55 dB

●  Pass-Band Ripple: ±0.03 dB

●• Sampling Frequency: 5 kHz to 200 kHz

●• System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS With Autodetect

●• Accepts 16-, 18-, 20-, and 24-Bit Audio Data

●• Data Formats: Standard, I2S, and Left-Justified

●• User-Programmable Mode Controls:

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

●  Digital De-Emphasis

●  Digital Filter Rolloff: Sharp or Slow Soft Mute

●Zero Flags for Each Output

●• Dual-Supply Operation: 5-V Analog, 3.3-V Digital

●• 5-V Tolerant Digital Inputs

●• Small SSOP-16 Package

●APPLICATIONS

●• AV Receivers

●• DVD Movie Players

●• DVD Add-On Cards for High-End PCs

●• DVD Audio Players

●• HDTV Receivers

●• Car Audio Systems

●• Other Applications Requiring 24-Bit Audio