Document
Product Folder
Order Now
Technical Documents
Tools & Software
Support & Community
Burr-Brown Audio
PCM1860-Q1, PCM1861-Q1, PCM1862-Q1 PCM1863-Q1, PCM1864-Q1, PCM1865-Q1
SLASE64A – DECEMBER 2014 – REVISED JUNE 2017
PCM186x-Q1 Automotive, 4-Channel or 2-Channel, 192-kHz, Audio ADCs
1 Features
•1 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
2 Applications
• Automotive Head Units • External Car Amplifiers • Telematics Control Unit (TCU)
3 Description
The PCM186x-Q1 family (PCM1860-Q1, PCM1861Q1, 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 singlesupply 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 singleended 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 PCM186xQ1 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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
PCM186x-Q1
TSSOP (30)
7.80 mm × 4.40 mm
(1) For all available packages, see the package option addendum at the end of the data sheet.
Simplified Application Diagram
IN MIC
IN LINE
PCM186x-Q1
DOUT BCK LRCK
TMS320C5535
DOUT
PCM5121
SW mix
TPA3116
BCK LRCK
PCM5100
TPA3116
IN USB
Copyright © 2017, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
PCM1860-Q1, PCM1861-Q1, PCM1862-Q1 PCM1863-Q1, PCM1864-Q1, PCM1865-Q1
SLASE64A – DECEMBER 2014 – REVISED JUNE 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Device Comparison Table..................................... 6 6 Pin Configuration and Functions ......................... 7 7 Specifications....................................................... 11
7.1 Absolute Maximum Ratings .................................... 11 7.2 ESD Ratings............................................................ 11 7.3 Recommended Operating Conditions..................... 11 7.4 Thermal Information ................................................ 11 7.5 Electrical Characteristics: PGA and ADC AC
Performance............................................................. 12 7.6 Electrical Characteristics: DC ................................. 13 7.7 Electrical Characteristics: Digital Filter.................... 15 7.8 Timing Requirements: External Clock..................... 15 7.9 Timing Requirements: I2C Control Interface .......... 16 7.10 Timing Requirements: SPI Control Interface ....... 17 7.11 Timing Requirements: Audio Data Interface for
Slave Mode .............................................................. 18 7.12 Timing Requirements: Audio Data Interface for
Master Mode .............................