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PCM1861-Q1

ACTIVE

Automotive 110dB 2-Channel Hardware-Controlled Audio ADC With Universal Front End

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PCM1820-Q1 ACTIVE Automotive, stereo, 113-dB, 192-kHz hardware-controlled audio ADC Higher SNR performance, smaller package, lower power consumption

PCM1861-Q1

ACTIVE
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Product details

Number of ADC channels 2 Analog inputs 8 Digital audio interface I2S, L Control interface H/W 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 2 Analog inputs 8 Digital audio interface I2S, L Control interface H/W 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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PCM1861 ACTIVE 110dB 2-Channel Hardware-Controlled Audio ADC With Universal Front End Catalog version without AEC-Q100 qualification

Technical documentation

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Type Title Date
* Data sheet PCM186x-Q1 Automotive, 4-Channel or 2-Channel, 192-kHz, Audio ADCs datasheet (Rev. A) PDF | HTML 21 Jun 2017
Application note Sitara Linux ALSA DSP Microphone Array Voice Recognition 30 Jun 2017
EVM User's guide PCM186x EVM User's Guide 31 Mar 2015
Application note Optimizing Signal Chain Noise on PCM186x Devices 05 Feb 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

PCM1861EVM — PCM1861 110dB 2-Ch Hardware-Controlled Audio ADC With Universal Front End Evaluation Module

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.

User guide: PDF
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Support software

SLAC663 — PCM186x Mixer Coefficient Calculation

Supported products & hardware

Supported products & hardware

Products
Audio ADCs
PCM1860 — 103dB 2-Channel Hardware-Controlled Audio ADC With Universal Front End PCM1860-Q1 — Automotive 103dB 2-Channel Hardware-Controlled Audio ADC With Universal Front End PCM1861 — 110dB 2-Channel Hardware-Controlled Audio ADC With Universal Front End PCM1861-Q1 — Automotive 110dB 2-Channel Hardware-Controlled Audio ADC With Universal Front End PCM1862 — 103-dB, 2-channel, software-controlled, audio ADC with universal front end PCM1862-Q1 — ;Automotive 103-dB, 2-channel, software-controlled, audio ADC with universal front end PCM1863 — 110dB 2-Channel Software-Controlled Audio ADC With Universal Front End PCM1863-Q1 — Automotive 110dB 2-Channel Software-Controlled Audio ADC With Universal Front End PCM1864 — 103dB 4-Channel Software-Controlled Audio ADC With Universal Front End PCM1864-Q1 — Automotive 103dB 4-Channel Software-Controlled Audio ADC With Universal Front End PCM1865 — 110dB 4-Channel Software-Controlled Audio ADC With Universal Front End PCM1865-Q1 — Automotive 110dB 4-Channel Software-Controlled Audio ADC With Universal Front End
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Simulation model

PCM186x IBIS Model

SLAM211.ZIP (79 KB) - IBIS Model
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Simulation tool

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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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TSSOP (DBT) 30 Ultra Librarian
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