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音訊、觸覺和壓電
音訊轉換器
音訊 ADC

PCM1870

現行

具麥克風偏壓、ALC、音效、陷波濾波器的 90dB SNR 低功耗立體聲道音訊 ADC

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功能相同，但針腳輸出與所比較的裝置不同。
TLV320ADC3120 現行 具有 106-dB SNR 的立體聲通道、768-kHz、Burr-Brown™ 音訊類比轉數位轉換器 (ADC) Improved SNR

PCM1870

現行
產品規格表 立即訂購

產品詳細資料

Number of ADC channels 2 Sampling rate (max) (kHz) 50 Analog inputs 2 Control interface I2C, SPI Digital audio interface DSP, I2S, L, R THD+N (dB) -81 ADC SNR (typ) (dB) 90 Rating Catalog Operating temperature range (°C) -40 to 85 Analog outputs 0
Number of ADC channels 2 Sampling rate (max) (kHz) 50 Analog inputs 2 Control interface I2C, SPI Digital audio interface DSP, I2S, L, R THD+N (dB) -81 ADC SNR (typ) (dB) 90 Rating Catalog Operating temperature range (°C) -40 to 85 Analog outputs 0
VQFN (RHF) 24 20 mm² (5 mm × 4 mm)
  • 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
  • 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

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.

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.
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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 16 Bits Low Power Stereo Audio ADC w/Microphone Bias & Microphone Amplifier datasheet (Rev. A) 2007/9/7
EVM User's guide DEM-DAI1870 EVM User's Guide 2008/2/15

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發模組 (EVM) 的 GUI

SLAC240 — PCM1870EVM - Graphical User Interface (GUI) Software

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模擬型號

PCM1870 IBIS Model

SLAM147.ZIP (51 KB) - IBIS 模型
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VQFN (RHF) 24 Ultra Librarian
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