PCM1723
Stereo-DAC, 96 dB SNR, mit programmierbarem PLL
PCM1723
- ACCEPTS 16-, 20-, OR 24-BIT INPUT DATA
- COMPLETE STEREO DAC: Includes Digital Filter and Output Amp
- DYNAMIC RANGE: 94dB
- MULTIPLE SAMPLING FREQUENCIES:
- 16kHz, 22.05kHz, 24kHz
- 32kHz, 44.1kHz, 48kHz
- 64kHz, 88.2kHz, 96kHz
- PROGRAMMABLE PLL CIRCUIT:
- 256fS/384fS from 27MHz Master Clock
- NORMAL OR I2™ DATA INPUT FORMATS
- SELECTABLE FUNCTIONS:
- Soft Mute
- Digital Attenuator (256 Steps)
- Digital De-emphasis
- OUTPUT MODE: Left, Right, Mono, Mute
SoundPLUS is a trademark of Texas Instruments.
I2S is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.
The PCM1723 is a complete low cost stereo audio digital-to-analog converter (DAC) with a phase-locked loop (PLL) circuit included. The PLL derives either 256fS or 384fS system clock from an external 27MHz reference frequency. The DAC contains a 3rd-order Delta-Sigma (
) modulator, a digital interpolation filter, and an analog output amplifier. The PCM1723 can accept 16-, 20-, or 24-bit input data in either normal or I2S formats.
The digital filter performs an 8X interpolation function and includes selectable features such as soft mute, digital attenuation and digital de-emphasis. The PLL can be programmed for sampling at standard digital audio frequencies as well as one-half and double sampling frequencies.
The PCM1723 is ideal for applications which combine compressed audio and video data such as DVD, DVD-ROM, set-top boxes and MPEG sound cards.
Technische Dokumentation
| Top-Dokumentation | Typ | Titel | Format-Optionen | Datum |
|---|---|---|---|---|
| * | Data sheet | SoundPlus™ Stereo Audio Digital-To-Analog Converter with Programmable PLL datasheet (Rev. A) | 18 Mai 2007 |
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