PCM1690 - 具有差动输出的 113dB SNR 8 通道音频 DAC

PCM1690是TI德州仪器公司的一款音频DAC产品，PCM1690是具有差动输出的 113dB SNR 8 通道音频 DAC，本站介绍了PCM1690的封装应用图解、特点和优点、功能等，并给出了与PCM1690相关的TI元器件型号供参考。

PCM1690 - 具有差动输出的 113dB SNR 8 通道音频 DAC - 音频DAC - 音频转换器 - 德州仪器

产品特性

24-Bit Delta-Sigma DAC
8-Channel 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 Lowpass Filter Included
- 4x/8x Oversampling Digital Filter:
  - Passband Ripple: ±0.0018 dB
  - Stop Band Attenuation: –75 dB
- Zero Flag
Flexible Audio Interface:
- I/F Format: I2S™, Left-/Right-Justified, DSP, TDM
- Data Length: 16, 20, 24, 32 Bits
Flexible Mode Control:
- 3-Wire SPI, 2-Wire I2C-Compatible Serial Control Interface, or Hardware Control
Multiple Functions Through SPI or I2C I/F:
- Audio I/F Format Select: I2S, Left-Justified, Right-Justified, DSP, TDM
- Digital Attenuation and Soft Mute
- Digital De-Emphasis: 32 kHz, 44.1 kHz, 48kHz
- Data Polarity Control
- Power Down
Multiple Functions Through H/W Control:
- Audio I/F Format Select: I2S, TDM
- Digital De-Emphasis Filter: 44.1 kHz
Analog Mute by Clock Halt Detection
External RESET Pin
Power Supplies:
- 5 V for Analog and 3.3 V for Digital
Package: HTSSOP-48
Operating Temperature Range:
- –40°C to +85°C

2 Applications

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

产品说明

The PCM1690 device is a high-performance, single-chip, 24-bit, eight-channel, audio digital-to-analog converter (DAC) with differential outputs. The eight-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 the PCM1690 supports the time-division-multiplexed (TDM) format in addition to the standard I2S, left-justified, right-justified, and DSP formats.

The PCM1690 can be controlled through a three-wire, SPI-compatible interface, 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 a subset of user-programmable functions through two control pins. The PCM1690 is available in a 12-mm × 8-mm (12-mm × 6-mm body) HTSSOP-48 package.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
PCM1690	HTSSOP (48)	12.50 mm × 6.10 mm

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