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音訊 ADC

PCM1865-Q1

現行

具有通用前端的汽車 110dB 4 通道軟體控制音訊 ADC

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open-in-new 比較替代產品
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功能相同，但引腳輸出與所比較的裝置不同
最新 PCM5140-Q1 現行 具有 120dB SNR 的車用四通道 768kHz Burr-Brown™ 音訊類比轉數位轉換器 (ADC) Smaller package, higher SNR performance and more programmability
最新 PCM6140-Q1 現行 具有 122dB SNR 的車用四通道 768kHz Burr-Brown™ 音訊類比轉數位轉換器 (ADC) Smaller package, higher SNR performance and more programmability

PCM1865-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of ADC channels 4 Analog inputs 8 Digital audio interface I2S, L, R, TDM Control interface I2C Sampling rate (max) (kHz) 192 ADC SNR (typ) (dB) 110 Rating Automotive Analog outputs 0 Operating temperature range (°C) -40 to 125
Number of ADC channels 4 Analog inputs 8 Digital audio interface I2S, L, R, TDM Control interface I2C Sampling rate (max) (kHz) 192 ADC SNR (typ) (dB) 110 Rating Automotive Analog outputs 0 Operating temperature range (°C) -40 to 125
TSSOP (DBT) 30 49.92 mm² 7.8 x 6.4
  • 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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技術文件

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類型 標題 日期
* Data sheet PCM186x-Q1 Automotive, 4-Channel or 2-Channel, 192-kHz, Audio ADCs datasheet (Rev. A) PDF | HTML 2017年 6月 21日
Application note Sitara Linux ALSA DSP Microphone Array Voice Recognition 2017年 6月 30日
Technical article How do automotive cabin sound-enhancement systems work? PDF | HTML 2016年 9月 28日
EVM User's guide PCM186x EVM User's Guide 2015年 3月 31日
Application note Optimizing Signal Chain Noise on PCM186x Devices 2015年 2月 5日

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)。

開發板

PCM1865EVM — 具有通用前端的 PCM1865 110dB 四通道軟體控制音訊 ADC 評估模組

The PCM1865EVM (EVM) is an easy-to-use board for full evaluation of the four channel PCM1865 ADC. The included USB-12X board connects the EVM to the PC and provides 5V power. The EVM is controlled by PurePathTM Console which gives the ability to load, run and save scripts.

使用指南: PDF
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支援軟體

SLAC663 — PCM186x Mixer Coefficient Calculation

支援產品和硬體

支援產品和硬體

產品
音訊 ADC
PCM1860 — 具通用前端的 103dB 2 通道硬體控制音訊 ADC PCM1860-Q1 — 具有通用前端的車用 103 dB 雙通道硬體控制音訊 ADC PCM1861 — 具通用前端的 110dB 2 通道硬體控制音訊 ADC PCM1861-Q1 — 具通用前端的車用 110dB 2 通道硬體控制音訊 ADC PCM1862 — 具通用前端的 103-d 2 通道軟體控制音訊 ADC PCM1862-Q1 — ；具有通用前端的汽車 103-dB、雙通道、軟體控制、音訊 ADC PCM1863 — 具通用前端的 110dB 2 通道軟體控制音訊 ADC PCM1863-Q1 — 具有通用前端的汽車 110dB 雙通道軟體控制音訊 ADC PCM1864 — 具有通用前端的 103dB 4 通道軟體控制音訊 ADC PCM1864-Q1 — 具有通用前端的汽車 103dB 4 通道軟體控制音訊 ADC PCM1865 — 具通用前端的 110dB 4 通道軟體控制音訊 ADC PCM1865-Q1 — 具有通用前端的汽車 110dB 4 通道軟體控制音訊 ADC
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模擬型號

PCM186x IBIS Model

SLAM211.ZIP (79 KB) - IBIS Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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參考設計

TIDA-00733 — 具 2.1 MHz 切換式電源供應器的車用 8 通道 D 類放大器參考設計

TIDA-00733 is a reference design for an eight-channel, Class-D amplifier that is capable of driving 2-Ω loads and an off-battery step-down power supply with 5-V and  3.3-V outputs. The amplifier design provides audio inputs for each audio channel. A  high-performance audio (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00743 — 採用 AB 類外型尺寸的車用 2 MHz D 類四通道 21W 音訊放大器參考設計

The TIDA-00743 reference design is a small module designed for evaluation of a digital-input class-D audio amplifier in a system which has been designed for a typical class AB audio power amplifier module. This design demonstrates the reduction in power dissipation that a class D amplifier (...)
Design guide: PDF
電路圖: PDF
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TSSOP (DBT) 30 Ultra Librarian
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