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PCM1870的基本参数
  • 制造厂商:TI
  • 产品类别:音频
  • 技术类目:音频转换器 - 音频 ADC
  • 功能描述:采用麦克风偏置、ALC、音效和陷波滤波器的 90dB SNR 低功耗立体声音频 ADC
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PCM1870的产品详情:

The PCM1870 is a low-power stereo ADC designed for portable digital audio applications, with line-input amplifier, boost amplifier, microphone bias, programmable gain control, sound effects, and auto level control (ALC). It is available in 24-QFN (4-mm × 5-mm) and 24-DSBGA (2.49-mm × 3.49-mm) packages to save footprint. The PCM1870 accepts right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a 2- or 3-wire serial control port.

PCM1870的优势和特性:
  • Analog Front End:
    • Stereo Single End Input With MUX
    • Mono Differential Input
    • Stereo Programmable Gain Amplifier
    • Microphone Boost Amplifier and Bias
  • Analog Performances Dynamic Range: 90 dB
  • 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
  • Low Power Dissipation:
    • 13 mW in Record, 1.8/2.4 V, 48 kHz, Stereo
    • 5.3 mW in Record, 1.8/2.4 V, 8 kHz, Mono
    • 3.3 μW in All Power Down
  • Sampling Frequency: 5 kHz to 50 kHz
  • Auto Level Control for Recording
  • Operation by 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 Soft Mute
    • Power Up/Down Control for Each Module
    • 30-dB to -12-dB Gain for Analog Inputs
    • 0/12/20-dB Boost for Microphone Input
    • Parameter Settings for ALC
    • Three-Band Tone Control and 3D Sound
    • High-Pass Filter and Two-Stage Notch Filter
  • Pop Noise Reduction Circuit
  • Package:
    • 24-QFN (4 mm × 5 mm)
    • 24-DSBGA (2.49 mm × 3.49 mm)
  • Operation Temperature Range: -40°C to 85°C
  • APPLICATIONS
    • Portable Audio Player, Cellular Phone
    • Video Camcorder, Movie Digital Still Camera
    • PMP/DMB, Voice Recorder

PCM1870的参数(英文):
  • Number of ADC channels
  • 2
  • Analog inputs
  • 2
  • Digital audio interface
  • DSP, I2S, L, R
  • Control interface
  • I2C, SPI
  • Sampling rate (Max) (kHz)
  • 50
  • ADC SNR (Typ) (dB)
  • 90
  • Rating
  • Catalog
PCM1870具体的完整产品型号参数及价格(美元):

PCM1870的完整型号有:PCM1870RHFR、PCM1870RHFT,以下是这些产品的关键参数及官网采购报价:

PCM1870RHFR,工作温度:-40 to 85,封装:VQFN (RHF)-24,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PCM1870RHFR的批量USD价格:2.424(1000+)

PCM1870RHFT,工作温度:-40 to 85,封装:VQFN (RHF)-24,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PCM1870RHFT的批量USD价格:2.865(1000+)

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PCM1870的评估套件:

PCM1870EVM - Graphical User Interface (GUI) Software

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