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PCM1840 bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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PCM1840 bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 34 page Audio Serial Interface (TDM, I 2S, LJ) PLL and Clock Generation Hardware Pin Control Interface MICBIAS, Regulators and Voltage Reference Configurable Digital Filters, and DRE Quad Channel ADC with Front-End DRE Amplifier IN1P IN1M IN2P IN2M IN3P IN3M IN4P IN4M MICBIAS VREF FSYNC BCLK SDOUT MSZ SHDNZ FMT0 FMT1 MD0 MD1 AREG DREG AVSS Thermal Pad (VSS) AVDD IOVDD Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. PCM1840 SBAS989 – APRIL 2019 PCM1840 Quad Channel, 32-Bit, 192-kHz, Burr-BrownTM Audio ADC 1 1 Features 1 • Multichannel high-performance ADC: – 4-channel analog microphones or line-in • ADC line and microphone differential input performance: – Dynamic range: – 123-dB, dynamic range enhancer enabled – 113-dB, dynamic range enhancer disabled – THD+N: –98 dB • ADC differential 2-VRMS full-scale input • ADC sample rate (fS) = 8 kHz to 192 kHz • Hardware pin control configurations • Linear-phase or low-latency filter selection • Flexible audio serial data interface: – Master or slave interface selection – 32-bits, 4-channel TDM – 32-bits, 2-channel TDM – 32-bits, 2-channel I2S – 32-bits, 2-channel left-justified (LJ) • Automatic power-down upon loss of audio clocks • Integrated high-performance audio PLL • Low-noise MICBIAS 2.75-V output • Single-supply operation: 3.3 V • I/O-supply operation: 3.3 V or 1.8 V • Power consumption for 3.3-V AVDD supply: – 17.0 mW/channel at 16-kHz sample rate – 18.4 mW/channel at 48-kHz sample rate 2 Applications • Smart speakers • DVD recorders and players • AV receivers • Video conference systems • IP network cameras 3 Description The PCM1840 is a high-performance, Burr-Brown™ audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to four analog channels. The device supports differential line and microphone inputs with 2-VRMS full-scale signal. The device integrates microphone bias voltage, a phase-locked loop (PLL), a DC removal high-pass filter (HPF), and supports sample rates up to 192 kHz. The device supports time-division multiplexing (TDM), I2S, or left- justified (LJ) audio formats, selectable with the hardware pin level. Additionally, the PCM1840 supports master and slave mode selection for the audio bus interface operation. These integrated high- performance features, along with the ability to be powered from a single supply of 3.3 V, make the device an excellent choice for cost-sensitive, space- constrained audio systems in far-field microphone recording applications. The PCM1840 is specified from –40°C to +125°C, and is offered in a 24-pin WQFN package. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) PCM1840 WQFN (24) 4.00 mm × 4.00 mm with 0.5-mm pitch (1) For all available packages, see the package option addendum at the end of the data sheet. Simplified Block Diagram |
Số phần tương tự - PCM1840 |
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Mô tả tương tự - PCM1840 |
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