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PCM3794A

現行

具耳機放大器、陷波濾波器、ALC 和 3D 效果的超低功耗立體聲道轉碼器

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產品規格表

PCM3794A

現行
產品規格表 立即訂購

產品詳細資料

Number of ADC channels 2 Number of DAC channels 2 Digital audio interface DSP, I2S, L, R Control interface I2C, SPI Analog inputs 6 Analog outputs 3 Features Automatic level control (ALC), Notch filter Sampling rate (max) (kHz) 50 Rating Catalog ADC SNR (typ) (dB) 90 DAC SNR (typ) (dB) 93 Operating temperature range (°C) -40 to 85
Number of ADC channels 2 Number of DAC channels 2 Digital audio interface DSP, I2S, L, R Control interface I2C, SPI Analog inputs 6 Analog outputs 3 Features Automatic level control (ALC), Notch filter Sampling rate (max) (kHz) 50 Rating Catalog ADC SNR (typ) (dB) 90 DAC SNR (typ) (dB) 93 Operating temperature range (°C) -40 to 85
VQFN (RHB) 32 25 mm² (5 mm × 5 mm)
  • Analog Front End:
    • Stereo Single-Ended Input With Multiplexer
    • Mono Differential Input
    • Stereo Programmable Gain Amplifier
    • Microphone Amplifier (20 dB) and Bias
  • Analog Back End:
    • Stereo/Mono Line Output With Volume
    • Stereo/Mono Headphone Amplifier With Volume and Capless Mode
    • Stereo/Mono Digital Speaker Amplifier (BTL) With Volume
  • Analog Performance:
    • Dynamic Range: 93 dB (DAC)
    • Dynamic Range: 90 dB (ADC)
    • 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:
    • 7 mW in Playback, 1.8 V/2.4 V, 48 kHz
    • 13 mW in Record, 1.8 V/2.4 V, 48 kHz
    • 3.3 µW in Power Down
  • Sampling Frequency: 5 kHz to 50 kHz
  • Automatic Level Control for Recording
  • 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
  • Headphone Plug Insert Detection
  • 2 (I2C) or 3 (SPI) Wire Serial Control
  • Programmable Function by Register Control:
    • Digital Attenuation of DAC: 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
    • 30-dB to -12-dB Gain for Analog Inputs
    • 0/20 dB Selectable for Microphone Input
    • 0-dB to -21-dB Gain for Analog Mixing
    • Parameter Settings for ALC
    • Three-Band Tone Control and 3D Sound
    • High-Pass Filter: 4-, 120-, 240-Hz
    • Two-Stage Programmable Notch Filter
    • Analog Mixing Control
  • Pop-Noise Reduction Circuit
  • Short and Thermal Protection Circuit
  • Package: 5-mm × 5-mm QFN Pacakge
  • Operation Temperature Range: -40°C to 85°C
  • APPLICATIONS
    • Portable Audio Player, Cellular Phone
    • Video Camcorder, Digital Movie/Still Camera
    • PMP/DMB
  • Analog Front End:
    • Stereo Single-Ended Input With Multiplexer
    • Mono Differential Input
    • Stereo Programmable Gain Amplifier
    • Microphone Amplifier (20 dB) and Bias
  • Analog Back End:
    • Stereo/Mono Line Output With Volume
    • Stereo/Mono Headphone Amplifier With Volume and Capless Mode
    • Stereo/Mono Digital Speaker Amplifier (BTL) With Volume
  • Analog Performance:
    • Dynamic Range: 93 dB (DAC)
    • Dynamic Range: 90 dB (ADC)
    • 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:
    • 7 mW in Playback, 1.8 V/2.4 V, 48 kHz
    • 13 mW in Record, 1.8 V/2.4 V, 48 kHz
    • 3.3 µW in Power Down
  • Sampling Frequency: 5 kHz to 50 kHz
  • Automatic Level Control for Recording
  • 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
  • Headphone Plug Insert Detection
  • 2 (I2C) or 3 (SPI) Wire Serial Control
  • Programmable Function by Register Control:
    • Digital Attenuation of DAC: 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
    • 30-dB to -12-dB Gain for Analog Inputs
    • 0/20 dB Selectable for Microphone Input
    • 0-dB to -21-dB Gain for Analog Mixing
    • Parameter Settings for ALC
    • Three-Band Tone Control and 3D Sound
    • High-Pass Filter: 4-, 120-, 240-Hz
    • Two-Stage Programmable Notch Filter
    • Analog Mixing Control
  • Pop-Noise Reduction Circuit
  • Short and Thermal Protection Circuit
  • Package: 5-mm × 5-mm QFN Pacakge
  • Operation Temperature Range: -40°C to 85°C
  • APPLICATIONS
    • Portable Audio Player, Cellular Phone
    • Video Camcorder, Digital Movie/Still Camera
    • PMP/DMB

The PCM3793A/94A is a low-power stereo CODEC designed for portable digital audio applications. The device integrates stereo digital speaker amplifier, headphone amplifier, line amplifier, line input, boost amplifier, microphone bias, programmable gain control, analog mixing, sound effects, and automatic level control (ALC). It is available in a small-footprint, 5-mm × 5-mm QFN package. The PCM3793A/94A 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.

The PCM3793A/94A is a low-power stereo CODEC designed for portable digital audio applications. The device integrates stereo digital speaker amplifier, headphone amplifier, line amplifier, line input, boost amplifier, microphone bias, programmable gain control, analog mixing, sound effects, and automatic level control (ALC). It is available in a small-footprint, 5-mm × 5-mm QFN package. The PCM3793A/94A 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.
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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-Bit Low Power Stereo Audio CODEC w/Microphone Bias Headphone Digit Speakr Amp datasheet (Rev. A) 2007/2/5
EVM User's guide DEM-DAI3793A/3794A EVM User's Guide 2007/7/26

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

SLAC140 — PCM3793A/94AEVM - Graphical User Interface (GUI) Software (v1.2.0a)

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