PCM1795 - 32 位 192kHz 采样高级分段音频立体声 DAC

PCM1795是TI德州仪器公司的一款音频DAC产品，PCM1795是32 位 192kHz 采样高级分段音频立体声 DAC，本站介绍了PCM1795的封装应用图解、特点和优点、功能等，并给出了与PCM1795相关的TI元器件型号供参考。

PCM1795 - 32 位 192kHz 采样高级分段音频立体声 DAC - 音频DAC - 音频转换器 - 德州仪器

产品特性

32-Bit Resolution
Analog Performance:
- Dynamic Range: 123 dB
- THD+N: 0.0005%
Differential Current Output: 3.9 mAPP
8× Oversampling Digital Filter:
- Stop-Band Attenuation: –98 dB
- Passband Ripple: ±0.0002 dB
Sampling Frequency: 10 kHz to 200 kHz
System Clock: 128, 192, 256, 384, 512, or 768fS With Autodetect
Accepts 16-, 24-, and 32-Bit Audio Data
PCM Data Formats: Standard, I2S, and Left-Justified
DSD Format Interface Available
Interface Available for Optional External Digital Filter or DSP
TDMCA or Serial Port (SPI™/I2C)
User-Programmable Mode Controls:
- Digital Attenuation: 0 dB to –120 dB, 0.5-dB/Step
- Digital De-Emphasis
- Digital Filter Roll-Off: Sharp or Slow
- Soft Mute
- Zero Flag for Each Output
Compatible With PCM1792A and PCM1796 (Pins and Mode Controls)
Dual Supply Operation:
- 5-V Analog, 3.3-V Digital
5-V Tolerant Digital Inputs
Small SSOP-28 Package

产品应用

A/V Receivers
SACD Players
DVD Players
HDTV Receivers
Car Audio Systems
Digital Multitrack Recorders
Other Applications Requiring 32-Bit Audio

产品说明

The PCM1795 device is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters (DACs) and support circuitry in a small SSOP-28 package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1795 provides balanced current outputs, letting the user optimize analog performance externally. The PCM1795 accepts pulse code modulation (PCM) and direct stream digital (DSD) audio data formats, thus providing an easy interface to audio digital signal processors (DSPs) and decoder chips. The PCM1795 device also interfaces with external digital filter devices such as the DF1704, DF1706, and the PMD200 from Pacific Microsonics™. Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through an SPI or I2C serial control port that supports register write and readback functions. The PCM1795 device also supports the time-division-multiplexed (TDM) command and audio (TDMCA) data format.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
PCM1795	SSOP (28)	10.20 mm × 5.30 mm

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