Support software
Data sheet
A newer version of this product is available
This product continues to be available for existing customers. New designs should consider an alternate product.
Same functionality with different pin-out to the compared device
PCM1865
- 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)
- Fixed Gain: 0 dB, 12 dB, 32 dB
- 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.
Technical documentation
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View all 5 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | PCM186x 4-Channel or 2-Channel, 192-kHz, Audio ADCs datasheet (Rev. D) | PDF | HTML | 28 Mar 2018 |
| Analog Design Journal | Selecting capacitors to minimize distortion in audio applications (Rev. A) | PDF | HTML | 02 May 2023 | |
| 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
PCM1865EVM — PCM1865 110dB 4-Ch Software-Controlled Audio ADC With Universal Front End Evaluation Module
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.
User guide: PDF
Evaluation board
PP-SALB2-EVM — PP-SALB2-EVM Smart amp speaker characterization board evaluation module (Learning Board 2)
This board supports: TAS2555YZEVM, TAS2557EVM 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 (...)
User guide: PDF
Daughter card
AUDK2G — 66AK2Gx (K2G) audio daughter card
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, (...)
User guide: PDF
Driver or library
PCM186X-DRIVERS — PCM186x ADC family Linux driver support
These Linux drivers support our low-power audio analog-to-digital converters (ADCs) in the PCM18xx device family, and include both .c and .h files. The "Go to third party" buttons below will allow you to downlod the appropriate drivers from git.kernal.org.
Linux main line status
Linux main line status
Available in Linux (...)
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
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 (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| TSSOP (DBT) | 30 | Ultra Librarian |
Ordering & quality
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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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