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.

For all available packages, see the orderable addendum at the end of the data sheet.

• 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

• Number of DAC channels (#)
• 8
• Analog inputs
• 0
• Analog outputs
• 8
• DAC SNR (Typ) (dB)
• 113
• Sampling rate (Max) (kHz)
• 192
• Control interface
• SPI, I2C, H/W
• Resolution (Bits)
• 24
• Architecture
• Current Segment DAC

PCM1690的完整型号有：PCM1690DCA、PCM1690DCAR，以下是这些产品的关键参数及官网采购报价：

PCM1690DCA，工作温度：-40 to 85，封装：HTSSOP (DCA)-48，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网PCM1690DCA的批量USD价格：3.003（1000+）

PCM1690DCAR，工作温度：-40 to 85，封装：HTSSOP (DCA)-48，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网PCM1690DCAR的批量USD价格：2.503（1000+）

AUDK2G — 66AK2Gx (K2G) 音频子卡

K2G 音频子卡旨在与 K2G 通用 EVM (EVMK2G) 结合使用，音频子卡运行需要使用 EVMK2G。子卡允许用户基于 66AKG2G02 DSP + ARM 处理器 SoC 开发多通道音频应用，如 A/V 接收器、条形音箱、汽车放大器系统和混合控制台。

PCM1690EVM - Graphical User Interface (GUI) Software

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