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
