PCM1789 - 113dB SNR 立体声 DAC

PCM1789是TI德州仪器公司的一款音频DAC产品，PCM1789是113dB SNR 立体声 DAC，本站介绍了PCM1789的封装应用图解、特点和优点、功能等，并给出了与PCM1789相关的TI元器件型号供参考。

PCM1789 - 113dB SNR 立体声 DAC - 音频DAC - 音频转换器 - 德州仪器

产品特性

Enhanced Multi-Level Delta-Sigma DAC:
- High Performance: Differential, fS = 48 kHz
- THD+N: –94 dB
- SNR: 113 dB
- Dynamic Range: 113 dB
- Sampling Rate: 8 kHz to 192 kHz
- System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS, 1152 fS
- Differential Voltage Output: 8 VPP
- Analog Low-Pass Filter Included
- 4x/8x Oversampling Digital Filter:
  - Passband Ripple: ±0.0018 dB
  - Stop Band Attenuation: –75 dB
- Zero Flags (16-, 20-, 24-Bits)
Flexible Audio Interface:
- I/F Format: I2S, Left-/Right-Justified, DSP
- Data Length: 16, 20, 24, 32 Bits
Flexible Mode Control:
- 3-Wire SPI, 2-Wire I2C-Compatible Serial Control Interface, or Hardware Control
- Connect Up To 4 Devices on One SPI Bus
Multi Functions via SPI or I2C I/F:
- Audio I/F Format Select: I2S, Left-Justified, Right-Justified, DSP
- Digital Attenuation and Soft Mute
- Digital De-Emphasis: 32kHz, 44.1kHz, 48kHz
- Data Polarity Control
- Power-Save Mode
Multi Functions via Hardware Control:
- Audio I/F Format Select: I2S, Left-Justified
- Digital De-Emphasis Filter: 44.1kHz
Analog Mute by Clock Halt Detection
External Reset Pin
Power Supplies:
- 5 V for Analog and 3.3 V for Digital
Package: TSSOP-24
Operating Temperature Range: –40°C to 85°C

产品应用

Blu-ray Disc™ Players
DVD Players
AV Receivers
Home Theaters
Car Audio External Amplifiers
Car Audio AVN Applications

产品说明

The PCM1789 is a high-performance, single-chip, 24-bit, stereo, audio digital-to-analog converter (DAC) with differential outputs. The two-channel, 24-bit DAC employs an enhanced multi-level, delta-sigma (ΔΣ) modulator, and supports 8 kHz to 192 kHz sampling rates and a 16-, 20-, 24-, 32-bit width digital audio input word on the audio interface. The audio interface of PCM1789 supports a 24-bit, DSP format in addition to I2S, left-justified, and right-justified formats.

The PCM1789 can be controlled through a three-wire, SPI-compatible or two-wire, I2C-compatible serial interface in software, which provides access to all functions including digital attenuation, soft mute, de-emphasis, and so forth. Also, hardware control mode provides two user-programmable functions through two control pins. The PCM1789 is available in a 24-pin TSSOP package.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
PCM1789	TSSOP (24)	4.40 mm x 7.80 mm

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