The PCM1774 is a low-power stereo DAC designed for portable digital audio applications. The device integrates headphone amplifier, line amplifier, line input, boost amplifier, programmable gain control, analog mixing, and sound effects. It is available in a small-footprint, 4-mm × 4-mm QFN package. The PCM1774 supports right-justified, left-justified, I²S, and DSP formats, providing easy interfacing to audio DSP and decoder/encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a two- or three-wire serial control port.

• Analog Front End:
  • Stereo Single-Ended Input
  • Microphone Amplifier (12 dB, 20 dB)
• Analog Back End:
  • Stereo/Mono Line Output With Volume
  • Stereo/Mono Headphone Amplifier With Volume
• Analog Performance:
  • Dynamic Range: 93 dB
  • 40-mW + 40-mW Headphone Output at RL = 16
• Power Supply Voltage
  • 1.71 V to 3.6 V for Digital I/O Section
  • 1.71 V to 3.6 V for Digital Core Section
  • 2.4 V to 3.6 V for Analog Section
  • 2.4 V to 3.6 V for Power Amplifier Section
• Low Power Dissipation:
  • 6.4 mW in Playback, 1.8 V/2.4 V, 44.1 kHz
  • 3.3 μW in Power Down
• Sampling Frequency: 5 kHz to 50 kHz
• Operation From a Single Clock Input Without PLL
• System Clock:
  • Common-Audio Clock (256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz
• 2 (I2C?) or 3 (SPI) Wire Serial Control
• Programmable Function by Register Control:
  • Digital Attenuation: 0 dB to -62 dB
  • Digital Gain of DAC: 0, 6, 12, 18 dB
  • Power Up/Down Control for Each Module
  • 6-dB to -70-dB Gain for Analog Outputs
  • 0/12/20 dB for Microphone Input
  • 0-dB to -21-dB Gain for Analog Mixing
  • Three-Band Tone Control and 3D Sound
  • Analog Mixing Control
• Pop-Noise Reduction Circuit
• Short Protection Circuit
• Package: 4-mm × 4-mm QFN Package
• Operation Temperature Range: -40°C to 85°C
• APPLICATIONS
  • Portable Audio Player, Cellular Phone
  • Video Camcorder, Digital Still Camera
  • PMP/DMB/PND

I2C is a trademark of Philips Electronics.

• Number of DAC channels (#)
• 2
• Analog inputs
• 0
• Analog outputs
• 2
• DAC SNR (Typ) (dB)
• 93
• Sampling rate (Max) (kHz)
• 50
• Control interface
• SPI, I2C
• Resolution (Bits)
• 16
• Architecture
• Delta-Sigma

PCM1774的完整型号有：PCM1774RGPR、PCM1774RGPT，以下是这些产品的关键参数及官网采购报价：

PCM1774RGPR，工作温度：-40 to 85，封装：QFN (RGP)-20，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网PCM1774RGPR的批量USD价格：1.373（1000+）

PCM1774RGPT，工作温度：-40 to 85，封装：QFN (RGP)-20，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网PCM1774RGPT的批量USD价格：1.648（1000+）

PCM1774EVM - Graphical User Interface (GUI) Software

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