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PCM6140-Q1 正在供货 具有 122dB SNR 的汽车级四通道、768kHz Burr-Brown™ 音频模数转换器 (ADC) Smaller package, higher SNR performance and more programmability
PCM5140-Q1 正在供货 具有 120dB SNR 的汽车级四通道、768kHz Burr-Brown™ 音频模数转换器 (ADC) Smaller package, higher SNR performance and more programmability

产品详情

Number of ADC channels 4 Sampling rate (max) (kHz) 192 Analog inputs 8 Control interface I2C Digital audio interface I2S, L, R, TDM THD+N (dB) -93 ADC SNR (typ) (dB) 110 Rating Automotive Operating temperature range (°C) -40 to 125 Analog outputs 0
Number of ADC channels 4 Sampling rate (max) (kHz) 192 Analog inputs 8 Control interface I2C Digital audio interface I2S, L, R, TDM THD+N (dB) -93 ADC SNR (typ) (dB) 110 Rating Automotive Operating temperature range (°C) -40 to 125 Analog outputs 0
TSSOP (DBT) 30 49.92 mm² (7.8 mm × 6.4 mm)
  • AEC-Q100 Qualified for Automotive Applications
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C5
  • High SNR Performance:
    • 110-dB SNR (PCM1861-Q1/63-Q1/65-Q1)
    • 103-dB SNR (PCM1860-Q1/62-Q1/64-Q1)
  • ADC Sample Rate (fS) = 8 kHz to 192 kHz
  • Up To Four Independent ADC Channels Available
  • Single-Ended, 2.1-VRMS Full-Scale (FS) Input
  • Differential, 4.2-VRMS FS Input
  • Hardware (HW) Control: PCM1860-Q1/61-Q1
  • Software (SW) Control (I2C or SPI):
    PCM1862-Q1/63-Q1/64-Q1/65-Q1
  • Support for Up To Four Digital Microphones
    (SW-Controlled Devices)
  • Programmable Gain Amplifier (PGA):
    • Fixed Gain: 0 dB, 12 dB, 32 dB
      (PCM1860-Q1/61-Q1)
    • SW-Controlled Gain: –12 dB to +32 dB
      (PCM1862-Q1/63-Q1/64-Q1/65-Q1)
  • Integrated High-Performance Audio PLL
  • Single 3.3-V Power-Supply Operation
  • Power Dissipation at 3.3 V:
    • < 85 mW (PCM1860-Q1/61-Q1/62-Q1/63-Q1)
    • < 145 mW (PCM1864-Q1/65-Q1)
  • Energysense Audio Content Detector for Auto System Wakeup and Sleep
  • Master or Slave Audio Interface
  • Automatic PGA Clipping Suppression Control
  • PCB-Footprint Compatibility Across All Devices
  • AEC-Q100 Qualified for Automotive Applications
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C5
  • High SNR Performance:
    • 110-dB SNR (PCM1861-Q1/63-Q1/65-Q1)
    • 103-dB SNR (PCM1860-Q1/62-Q1/64-Q1)
  • ADC Sample Rate (fS) = 8 kHz to 192 kHz
  • Up To Four Independent ADC Channels Available
  • Single-Ended, 2.1-VRMS Full-Scale (FS) Input
  • Differential, 4.2-VRMS FS Input
  • Hardware (HW) Control: PCM1860-Q1/61-Q1
  • Software (SW) Control (I2C or SPI):
    PCM1862-Q1/63-Q1/64-Q1/65-Q1
  • Support for Up To Four Digital Microphones
    (SW-Controlled Devices)
  • Programmable Gain Amplifier (PGA):
    • Fixed Gain: 0 dB, 12 dB, 32 dB
      (PCM1860-Q1/61-Q1)
    • SW-Controlled Gain: –12 dB to +32 dB
      (PCM1862-Q1/63-Q1/64-Q1/65-Q1)
  • Integrated High-Performance Audio PLL
  • Single 3.3-V Power-Supply Operation
  • Power Dissipation at 3.3 V:
    • < 85 mW (PCM1860-Q1/61-Q1/62-Q1/63-Q1)
    • < 145 mW (PCM1864-Q1/65-Q1)
  • Energysense Audio Content Detector for Auto System Wakeup and Sleep
  • Master or Slave Audio Interface
  • Automatic PGA Clipping Suppression Control
  • PCB-Footprint Compatibility Across All Devices

The PCM186x-Q1 family (PCM1860-Q1, PCM1861-Q1, PCM1862-Q1, PCM1863-Q1, PCM1864-Q1, and PCM1865-Q1) of audio front-end devices take a new approach to audio-function integration to ease compliance with European Ecodesign legislation, while enabling high-performance end products at reduced cost. The PCM186x-Q1 support single-supply operation at 3.3 V, and offer an integrated programable gain amplifier (PGA) in a small package; this configuration makes it feasible to implement smaller and smarter products at a reduced cost.

The PCM186x-Q1 audio front end supports single-ended input levels from small-mV microphone inputs to 2.1-VRMS line inputs, without external resistor dividers. The front-end mixer (MIX), multiplexer (MUX), and PGA also support differential (Diff), pseudo-differential, and single-ended (SE) inputs, making these devices an ideal interface for products that require interference suppression. The PCM186x-Q1 integrate many system-level functions that assist or replace some DSP functions.

An integrated band-gap voltage reference provides excellent PSRR, so that a dedicated analog 3.3-V rail may not be required.

The PCM186x-Q1 family (PCM1860-Q1, PCM1861-Q1, PCM1862-Q1, PCM1863-Q1, PCM1864-Q1, and PCM1865-Q1) of audio front-end devices take a new approach to audio-function integration to ease compliance with European Ecodesign legislation, while enabling high-performance end products at reduced cost. The PCM186x-Q1 support single-supply operation at 3.3 V, and offer an integrated programable gain amplifier (PGA) in a small package; this configuration makes it feasible to implement smaller and smarter products at a reduced cost.

The PCM186x-Q1 audio front end supports single-ended input levels from small-mV microphone inputs to 2.1-VRMS line inputs, without external resistor dividers. The front-end mixer (MIX), multiplexer (MUX), and PGA also support differential (Diff), pseudo-differential, and single-ended (SE) inputs, making these devices an ideal interface for products that require interference suppression. The PCM186x-Q1 integrate many system-level functions that assist or replace some DSP functions.

An integrated band-gap voltage reference provides excellent PSRR, so that a dedicated analog 3.3-V rail may not be required.

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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 PCM186x-Q1 Automotive, 4-Channel or 2-Channel, 192-kHz, Audio ADCs 数据表 (Rev. A) PDF | HTML 2017-6-21
应用手册 Sitara Linux ALSA DSP Microphone Array Voice Recognition 2017-6-30
技术文章 How do automotive cabin sound-enhancement systems work? PDF | HTML 2016-9-28
应用手册 Optimizing Signal Chain Noise on PCM186x Devices 2015-2-5

设计与开发

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评估板

PCM1865EVM — PCM1865 110dB 带通用前端评估模块的 4 通道软件控制音频 ADC

PCM1865EVM (EVM) 是一款易于使用的电路板,用于全面评估四通道 PCM1865 ADC。随附的 USB-12X 板将 EVM 连接至 PC 并提供 5V 电源。该 EVM 由 PurePathTM 控制台控制,该控制台提供了加载、运行和保存脚本的功能。

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支持软件

SLAC663 — PCM186x Mixer Coefficient Calculation

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仿真模型

PCM186x IBIS Model

SLAM211.ZIP (79 KB) - IBIS 模型
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参考设计

TIDA-00733 — 具有 2.1MHz 开关电源的汽车级 8 通道 D 类放大器参考设计

TIDA-00733 参考设计演示了如何实现可驱动 2Ω 负载的八通道 D 类放大器和具有 5V 和 3.3V 输出的无电池降压电源。该放大器设计可为每个音频通道提供音频输出。高性能音频模数转换器 (ADC) 利用音频输入创建数字数据流,并为系统创建数字计时。
支持的产品和硬件
参考设计

TIDA-00743 — 采用 AB 类封装形式的汽车级 2MHz D 类 4 通道 21W 音频放大器参考设计

TIDA-00743 参考设计是一个小型模块,设计用于评估经典 AB 类音频功率放大器模块专用系统中的数字输入 D 类音频放大器。此设计展示了 D 类放大器在功率耗散方面的优势。此设计展示了 TAS6424-Q1 在 2.1MHz 工作频率下如何实现紧凑型功率放大器解决方案。
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封装 引脚 CAD 符号、封装和 3D 模型
TSSOP (DBT) 30 Ultra Librarian

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