PCM1795 Texas instruments

PCM1795

Уточнить цену

PCM1795

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

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 TIs 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&trade. 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.

32-Bit Resolution
Analog Performance:
- Dynamic Range: 123 dB
- THD+N: 0.0005%
Differential Current Output: 3.9 mA_PP
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
768 f_S 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

Number of DAC channels	2
Analog inputs	0
Analog outputs	2
DAC SNR (typ) (dB)	123
Sampling rate (max) (kHz)	200
Control interface	I2C, SPI, TDMCA
Resolution (Bits)	32
Architecture	Advanced Segment
Operating temperature range (°C)	-25 to 85
Rating	Catalog