PCM1865

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110dB 4-Channel Software-Controlled Audio ADC With Universal Front End

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Product details

Parameters

ADC channels 4 Analog inputs 8 Digital audio interface L Control interface I2C Sampling rate (Max) (kHz) 192 ADC SNR (Typ) (dB) 110 Rating Catalog open-in-new Find other Audio ADCs

Package | Pins | Size

TSSOP (DBT) 30 34 mm² 7.8 x 4.4 open-in-new Find other Audio ADCs

Features

  • 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

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Description

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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Technical documentation

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No results found. Please clear your search and try again. View all 5
Type Title Date
* Datasheet PCM186x 4-Channel or 2-Channel, 192-kHz, Audio ADCs datasheet (Rev. D) Mar. 28, 2018
Application notes Sitara Linux ALSA DSP Microphone Array Voice Recognition Jun. 30, 2017
User guides PCM186x EVM User's Guide Mar. 31, 2015
Application notes Optimizing Signal Chain Noise on PCM186x Devices Feb. 05, 2015
Application notes Dynamic Performance Testing of Digital Audio D/A Converters Oct. 02, 2000

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

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.

Features
  • Simple external 5V power connection or USB power from USB-I2X
  • All of the register programming can be done via USB through USB-I2X using PurePathTM Console
  • Headers and test points available for most signals to and from the PCM1865
  • Digital Audio can be streamed from the included SPDIF optical connectors (...)
EVALUATION BOARDS Download
document-generic User guide
$999.00
Description

This board supports: TAS2555YZEVMTAS2557EVM and TAS2559EVM.

The Smart Amplifier Speaker Characterization Board, when used in conjunction with a supported TI Smart Amplifier and PurePath Console software, provides users the ability to measure speaker excursion, temperature and other parameters for (...)

Features
  • Easily and quickly characterize speakers
  • Quick connection to TI Smart Amplifier EVMs
  • Microphone included for SPL measurements
  • Laser input for speaker excursion measurements
DAUGHTER CARDS Download
document-generic User guide
$499.00
Description

The K2G Audio Daughter Card is designed to work in conjunction with the K2G General Purpose EVM (EVMK2G) or EVMK2GX and the EVMK2G or EVMK2GX is required for Audio Daughter Card operation.  The Daughter Card allows users to develop multichannel audio applications such as A/V receivers (...)

Features
  • Audio expansion compatible with the K2G General Purpose EVM
  • Eight channels of analog input
  • Sixteen channels of analog output
  • S/PDIF input (optical or coaxial)
  • S/PDIF output (coaxial)
  • I2S header for external I/O (HDMI, etc.)

Software development

SUPPORT SOFTWARE Download
SLAC663.ZIP (110 KB)

Design tools & simulation

SIMULATION MODELS Download
SLAM211.ZIP (79 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
TSSOP (DBT) 30 View options

Ordering & quality

Support & training

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