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Data sheet
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PCM1860
- 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
PCM1860EVM — PCM1860 103dB 2-Ch Hardware-Controlled Audio ADC With Universal Front End Evaluation Module
The PCM1860EVM evaluation module (EVM) is an easy-to-use board for full evaluation of the PCM1860, which is a four-channel analog-to-digital converter (ADC). The included USB-12X board connects the EVM to the PC and provides 5-V power. The EVM is controlled by the PurePath™ Console software (...)
User guide: PDF
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 |
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