Catalog
94dB SNR Stereo DAC with Programmable PLL&VCXO
Key Features
• COMPLETE DELTA-SIGMA STEREO DACVOLTAGE-CONTROLLED CRYSTAL OSCILLATOR:27MHz ±150ppm Output with 0V to 3V InputPROGRAMMABLE PLL256fSor 384fSAudio System Clock OutputDYNAMIC PERFORMANCE:Dynamic Range: 94dBSNR: 94dBTHD+N: 89dBSAMPLING FREQUENCIES:16kHz, 22.05kHz, 24kHz32kHz, 44.1kHz, 48kHz64kHz, 88.2kHz, 96kHzSERIAL AUDIO INTERFACE:Standard or I2S™ Data Formats16-, 20-, or 24-Bit DataI2C-BUS™ INTERFACE FOR CONTROL REGISTERS:Slave Receiver Operation7-Bit AddressingStandard Transfer Rate (up to 100kbps)PROGRAMMABLE CONTROLS:Digital Attenuation (256 steps)Soft MuteInfinite Zero Detect MuteDe-Emphasis (32kHz, 44.1kHz, 48kHz)DAC Output ModeSINGLE +5V SUPPLYSMALL SSOP-24 PACKAGEAPPLICATIONSSET-TOP BOXESDIGITAL BROADCAST RECEIVERSSoundPLUS is a trademark of Texas Instruments.I2C-Bus, I2C, and I2S are trademarks of NXP B.V.All other trademarks are the property of their respective owners.COMPLETE DELTA-SIGMA STEREO DACVOLTAGE-CONTROLLED CRYSTAL OSCILLATOR:27MHz ±150ppm Output with 0V to 3V InputPROGRAMMABLE PLL256fSor 384fSAudio System Clock OutputDYNAMIC PERFORMANCE:Dynamic Range: 94dBSNR: 94dBTHD+N: 89dBSAMPLING FREQUENCIES:16kHz, 22.05kHz, 24kHz32kHz, 44.1kHz, 48kHz64kHz, 88.2kHz, 96kHzSERIAL AUDIO INTERFACE:Standard or I2S™ Data Formats16-, 20-, or 24-Bit DataI2C-BUS™ INTERFACE FOR CONTROL REGISTERS:Slave Receiver Operation7-Bit AddressingStandard Transfer Rate (up to 100kbps)PROGRAMMABLE CONTROLS:Digital Attenuation (256 steps)Soft MuteInfinite Zero Detect MuteDe-Emphasis (32kHz, 44.1kHz, 48kHz)DAC Output ModeSINGLE +5V SUPPLYSMALL SSOP-24 PACKAGEAPPLICATIONSSET-TOP BOXESDIGITAL BROADCAST RECEIVERSSoundPLUS is a trademark of Texas Instruments.I2C-Bus, I2C, and I2S are trademarks of NXP B.V.All other trademarks are the property of their respective owners.
Description
AI
The PCM1740 is a complete stereo audio digital-to-analog converter with on-chip PLL and VCXO. The PCM1740 is designed specifically for set-top box applications requiring high-quality audio playback, a precision tuned 27MHz master clock source, and support for multiple audio-sampling frequencies.
The stereo digital-to-analog converter (DAC) uses multibit, delta-sigma architecture, which includes an 8x interpolation filter, 3rd-order noise shaping, 5-level amplitude quantization, and an analog low-pass filter. The PCM1740 includes a number of user-programmable functions, which are accessed via a standard I2C-Bus interface.
The PCM1740 is a complete stereo audio digital-to-analog converter with on-chip PLL and VCXO. The PCM1740 is designed specifically for set-top box applications requiring high-quality audio playback, a precision tuned 27MHz master clock source, and support for multiple audio-sampling frequencies.
The stereo digital-to-analog converter (DAC) uses multibit, delta-sigma architecture, which includes an 8x interpolation filter, 3rd-order noise shaping, 5-level amplitude quantization, and an analog low-pass filter. The PCM1740 includes a number of user-programmable functions, which are accessed via a standard I2C-Bus interface.