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音訊轉換器
音訊 ADC

PCM1861

現行

具通用前端的 110dB 2 通道硬體控制音訊 ADC

立即訂購
產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的產品不同
最新 TAA5242 預覽 具有 118-dB 動態範圍的硬體控制、低功耗高效能立體聲道音訊 ADC 8-dB higher performance without DRE in QFN package
功能相似於所比較的產品
PCM1820 現行 具有 113-dB SNR 的立體聲通道、32 位元、192-kHz、音訊類比轉數位轉換器 (ADC) 3-dB higher dynamic range and smaller size

PCM1861

現行
產品規格表 立即訂購

產品詳細資料

Number of ADC channels 2 Analog inputs 8 Digital audio interface L Control interface H/W Sampling rate (max) (kHz) 192 ADC SNR (typ) (dB) 110 Rating Catalog Analog outputs 0 Operating temperature range (°C) -40 to 125
Number of ADC channels 2 Analog inputs 8 Digital audio interface L Control interface H/W Sampling rate (max) (kHz) 192 ADC SNR (typ) (dB) 110 Rating Catalog Analog outputs 0 Operating temperature range (°C) -40 to 125
TSSOP (DBT) 30 49.92 mm² 7.8 x 6.4
  • High SNR Performance:
    • 110-dB SNR (PCM1861/63/65)
    • 103-dB SNR (PCM1860/62/64)
  • 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: PCM1860/61
  • Software (SW) Control (I2C or SPI):
    PCM1862/63/64/65
  • Support for Up To Four Digital Microphones
    (SW-Controlled Devices)
  • Programmable Gain Amplifier (PGA):
    • Fixed Gain: 0 dB, 12 dB, 32 dB
      (PCM1860/61)
    • SW-Controlled Gain: –12 dB to +32 dB
      (PCM1862/63/64/65)
  • Integrated High-Performance Audio PLL
  • Single 3.3-V Power-Supply Operation
  • Power Dissipation at 3.3 V:
    • < 85 mW (PCM1860/61/62/63)
    • < 145 mW (PCM1864/65)
  • 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
  • High SNR Performance:
    • 110-dB SNR (PCM1861/63/65)
    • 103-dB SNR (PCM1860/62/64)
  • 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: PCM1860/61
  • Software (SW) Control (I2C or SPI):
    PCM1862/63/64/65
  • Support for Up To Four Digital Microphones
    (SW-Controlled Devices)
  • Programmable Gain Amplifier (PGA):
    • Fixed Gain: 0 dB, 12 dB, 32 dB
      (PCM1860/61)
    • SW-Controlled Gain: –12 dB to +32 dB
      (PCM1862/63/64/65)
  • Integrated High-Performance Audio PLL
  • Single 3.3-V Power-Supply Operation
  • Power Dissipation at 3.3 V:
    • < 85 mW (PCM1860/61/62/63)
    • < 145 mW (PCM1864/65)
  • 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 family (PCM1860, PCM1861, PCM1862, PCM1863, PCM1864, and PCM1865) 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 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 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 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 family (PCM1860, PCM1861, PCM1862, PCM1863, PCM1864, and PCM1865) 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 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 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 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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PCM1822 現行 立體聲、117-dB SNR、192-kHz、低功耗、硬體控制、音訊 ADC Higher dynamic range, smaller package and newer intergrated features.

技術文件

star =TI 所選的此產品重要文件
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類型 標題 日期
* Data sheet PCM186x 4-Channel or 2-Channel, 192-kHz, Audio ADCs datasheet (Rev. D) PDF | HTML 2018年 3月 28日
Analog Design Journal Selecting capacitors to minimize distortion in audio applications (Rev. A) PDF | HTML 2023年 5月 2日
Application note Sitara Linux ALSA DSP Microphone Array Voice Recognition 2017年 6月 30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

PCM1861EVM — 具有通用前端的 PCM1861 110dB 雙通道硬體控制音訊 ADC 評估模組

The PCM1861EVM (EVM) is an easy-to-use board for full evaluation of the four channel PCM1861 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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