103dB 4-Channel Software-Controlled Audio ADC With Universal Front End
Product details
Parameters
Package | Pins | Size
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)
- 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
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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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | PCM186x 4-Channel or 2-Channel, 192-kHz, Audio ADCs datasheet (Rev. D) | Mar. 28, 2018 |
Application note | Selecting capacitors to minimize distortion in audio applications | Jun. 23, 2020 | |
White paper | Designing professional audio mixers for every scenario | Jun. 28, 2018 | |
Application note | Sitara Linux ALSA DSP Microphone Array Voice Recognition | Jun. 30, 2017 | |
User guide | PCM1864 Based Circular Microphone Board Reference Design | Apr. 10, 2017 | |
User guide | PCM186x EVM User's Guide | Mar. 31, 2015 | |
Application note | Optimizing Signal Chain Noise on PCM186x Devices | Feb. 05, 2015 | |
Application note | 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
Description
The PCM1864 evaluation module (EVM) is an easy-to-use board for full evaluation of the four channel PCM1864 analog-to-digital converter (ADC). The included USB-12X board connects the EVM to the PC and provides 5-V power. The PCM1864EVM is controlled by PurePath™ Console, which allows the ability (...)
Features
- Simple external 5-V power connection or USB power from USB-I2X
- All register programming can be done via USB through USB-I2X using PurePath™ Console
- Headers and test points available for most signals to and from PCM1864
- Digital audio can be streamed from included SPDIF optical connectors or through USB (...)
Software development
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
Design files
-
download TIDA-01454 BOM.pdf (89KB) -
download TIDA-01454 Assembly Drawing.pdf (196KB) -
download TIDA-01454 Layer Plots.zip (10228KB) -
download TIDA-01454 CAD Files.zip (18998KB) -
download TIDA-01454 Gerber.zip (6085KB)
Design files
-
download TIDA-01470 BOM.pdf (87KB) -
download TIDA-01470 Assembly Drawing.pdf (141KB) -
download TIDA-01470 PCB.pdf (1220KB) -
download TIDA-01470 CAD Files.zip (16685KB) -
download TIDA-01470 Gerber.zip (5088KB)
Design files
-
download EVMK2G BOM (Rev. A).pdf (119KB) -
download EVMK2G CAD Files (Rev. A).zip (12389KB) -
download EVMK2G Assembly Files (Rev. A).zip (151KB) -
download TIDA-01454 BOM.pdf (89KB) -
download TIDA-01454 Assembly Drawing.pdf (196KB) -
download TIDA-01454 Layer Plots.zip (10228KB) -
download TIDA-01454 CAD Files.zip (18998KB) -
download TIDA-01454 Gerber.zip (6085KB)
Design files
-
download TIDA-01454 BOM.pdf (89KB) -
download TIDA-01454 Assembly Drawing.pdf (196KB) -
download TIDA-01454 Layer Plots.zip (10228KB) -
download TIDA-01454 CAD Files.zip (18998KB) -
download TIDA-01454 Gerber.zip (6085KB) -
download TIDA-01470 Assembly Drawing.pdf (141KB) -
download TIDA-01470 PCB.pdf (1220KB) -
download TIDA-01470 CAD Files.zip (16685KB) -
download TIDA-01470 Gerber.zip (5088KB)
Design files
Design files
-
download EVMK2G Assembly Files (Rev. A).zip (151KB) -
download TIDA-01454 BOM.pdf (89KB) -
download TIDA-01454 Assembly Drawing.pdf (196KB) -
download TIDA-01454 Layer Plots.zip (10228KB) -
download TIDA-01454 CAD Files.zip (18998KB) -
download TIDA-01454 Gerber.zip (6085KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
TSSOP (DBT) | 30 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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