PCM1864 ADCs Datasheet

PCM1864 Datasheet PDF, Equivalent


Part Number

PCM1864

Description

4-Channel or 2-Channel 192-kHz Audio ADCs

Manufacture

etcTI

Total Page 30 Pages
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Download PCM1864 Datasheet PDF


PCM1864
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Burr-Brown Audio
PCM1860, PCM1861, PCM1862
PCM1863, PCM1864, PCM1865
SLAS831D – MARCH 2014 – REVISED MARCH 2018
PCM186x 4-Channel or 2-Channel, 192-kHz, Audio ADCs
1 Features
1 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
2 Applications
• Home Theater and TV
• Voice Controlled Devices
• Bluetooth® Speaker
• Microphone Array Processors
3 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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
PCM186x
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
DOUT
BCK
LRCK
TMS320C5535
DOUT
PCM5121
SW mix
TPA3116
BCK
LRCK
PCM5100
TPA3116
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.

PCM1864
PCM1860, PCM1861, PCM1862
PCM1863, PCM1864, PCM1865
SLAS831D – MARCH 2014 – REVISED MARCH 2018
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 7
6 Pin Configuration and Functions ......................... 8
7 Specifications....................................................... 12
7.1 Absolute Maximum Ratings .................................... 12
7.2 ESD Ratings............................................................ 12
7.3 Recommended Operating Conditions..................... 12
7.4 Thermal Information ................................................ 12
7.5 Electrical Characteristics: PGA and ADC AC
Performance............................................................. 13
7.6 Electrical Characteristics: DC ................................. 14
7.7 Electrical Characteristics: Digital Filter.................... 16
7.8 Timing Requirements: External Clock..................... 16
7.9 Timing Requirements: I2C Control Interface .......... 17
7.10 Timing Requirements: SPI Control Interface ....... 18
7.11 Timing Requirements: Audio Data Interface for
Slave Mode .............................................................. 19
7.12 Timing Requirements: Audio Data Interface for
Master Mode ............................................................ 20
7.13 Typical Characteristics .......................................... 21
8 Parameter Measurement Information ................ 23
9 Detailed Description ............................................ 25
9.1 Overview ................................................................. 25
9.2 Functional Block Diagrams ..................................... 25
9.3 Features Description .............................................. 28
9.4 Device Functional Modes........................................ 60
9.5 Programming........................................................... 62
10 Application and Implementation........................ 70
10.1 Application Information.......................................... 70
10.2 Typical Applications .............................................. 75
11 Power Supply Recommendations ..................... 79
11.1 Power-Supply Distribution and Requirements ...... 79
11.2 1.8-V Support ........................................................ 79
11.3 Brownout Conditions ............................................. 79
11.4 Power-Up Sequence ............................................. 80
11.5 Lowest Power-Down Modes ................................. 80
11.6 Power-On Reset Sequencing Timing Diagram .... 81
11.7 Power Connection Examples................................ 82
11.8 Fade In .................................................................. 83
12 Layout................................................................... 84
12.1 Layout Guidelines ................................................. 84
12.2 Layout Example .................................................... 85
13 Register Maps...................................................... 85
13.1 Register Map Description...................................... 85
13.2 Register Map Summary ........................................ 86
13.3 Page 0 Registers ................................................. 89
13.4 Page 1 Registers ............................................... 129
13.5 Page 3 Registers ............................................... 132
13.6 Page 253 Registers ........................................... 133
14 Device and Documentation Support ............... 134
14.1 Documentation Support ...................................... 134
14.2 Related Links ...................................................... 134
14.3 Receiving Notification of Documentation
Updates.................................................................. 134
14.4 Community Resources........................................ 134
14.5 Trademarks ......................................................... 134
14.6 Electrostatic Discharge Caution .......................... 134
14.7 Glossary .............................................................. 134
15 Mechanical, Packaging, and Orderable
Information ......................................................... 135
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (August 2014) to Revision D
Page
• Added PCM1860, PCM1862, and PCM1864 and related content to this data sheet; these devices were previously in
a separate data sheet (SLASE55A) ....................................................................................................................................... 1
• Changed title for clarity........................................................................................................................................................... 1
• Changed Feature bullets to include new devices................................................................................................................... 1
• Added Feature bullets to clarify hardware- and software-controlled devices......................................................................... 1
• Changed Application from "Automotive Head Units" to "Voice Controlled Devices".............................................................. 1
• Changed Description section text to clarify 3.3-V supply, integrated PGA, and additional front-end features ...................... 1
• Changed Simplified Application Diagram to combine two previous figures into one figure ................................................... 1
• Deleted Typ Performance (3.3-V Supply, –1 dB-FS Input) table; redundant content ............................................................ 7
• Changed Device Comparison Table; updated for clarity........................................................................................................ 7
• Changed reference voltage output dcoupling point typical value from 0.5 VCC to 0.5 AVDD in VREF pin description........ 9
• Changed XO (pin 9) type from "—" to "Digital output" in both Pin Functions tables ............................................................. 9
• Changed "latch enable" to "word clock" in LRCK pin description ......................................................................................... 9
• Changed reference voltage output dcoupling point typical value from 0.5 VCC to 0.5 AVDD in VREF pin description ..... 11
2 Submit Documentation Feedback
Copyright © 2014–2018, Texas Instruments Incorporated
Product Folder Links: PCM1860 PCM1861 PCM1862 PCM1863 PCM1864 PCM1865


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity Burr-Brown Audio PCM1860, PCM1 861, PCM1862 PCM1863, PCM1864, PCM1865 SLAS831D – MARCH 2014 – REVISED MAR CH 2018 PCM186x 4-Channel or 2-Channel , 192-kHz, Audio ADCs 1 Features •1 High SNR Performance: – 110-dB SNR (P CM1861/63/65) – 103-dB SNR (PCM1860/6 2/64) • ADC Sample Rate (fS) = 8 kHz to 192 kHz • Up To Four Independent A DC Channels Available • Single-Ended, 2.1-VRMS Full-Scale (FS) Input • Dif ferential, 4.2-VRMS FS Input • Hardwa re (HW) Control: PCM1860/61 • Softwar e (SW) Control (I2C or SPI): PCM1862/63 /64/65 • Support for Up To Four Digit al Microphones (SW-Controlled Devices) • Programmable Gain Amplifier (PGA): – Fixed Gain: 0 dB, 12 dB, 32 dB (PCM 1860/61) – SW-Controlled Gain: –12 dB to +32 dB (PCM1862/63/64/65) • Int egrated 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.
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