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PCM1802
SLES023D – DECEMBER 2001 – REVISED DECEMBER 2016
PCM1802 Single-Ended Analog-Input 24-Bit, 96-kHz Stereo A/D Converter
1 Features
•1 24-Bit Delta-Sigma Stereo A/D Converter • Single-Ended Voltage Input: 3 VP–P • Antialiasing Filter Included • Oversampling Decimation Filter
– Oversampling Frequency: ×64, ×128 – Pass-Band Ripple: ±0.05 dB – Stop-Band Attenuation: –65 dB – On-Chip High-Pass Filter: 0.84 Hz (44.1 kHz) • High Performance – THD+N: 96 dB (Typical) – SNR: 105 dB (Typical) – Dynamic Range: 105 dB (Typical) • PCM Audio Interface – Master and Slave Mode Selectable – Data Formats: 24-Bit Left-Justified; 24-Bit I2S;
20-bit or 24-Bit Right-Justified • Sampling Rate: 16 kHz to 96 kHz • System Clock: 256 fS, 384 fS, 512 fS, 768 fS • Dual Power Supplies: 5 V (Analog), 3.3 V (Digital) • Package: 20-Pin SSOP
2 Applications
• AV Amplifier Receivers • MD Players • CD Recorders • Multitrack Receivers • Electric Musical Instruments
3 Description
The PCM1802 is a high-performance, low-cost, single-chip stereo analog-to-digital converter with single-ended analog voltage input. The PCM1802 uses a delta-sigma modulator with 64-times or 128‑times oversampling, and includes a digital decimation filter and high-pass filter (HPF), which removes the DC component of the input signal. For various applications, the PCM1802 supports master and slave modes and four data formats in serial interface. The PCM1802 is suitable for a wide variety of cost-sensitive consumer applications where good performance, 5-V analog supply, and 3.3-V digital supply operation is required. The PCM1802 is fabricated using a highly advanced CMOS process and is available in the DB 20-pin SSOP package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
PCM1802
SSOP (20)
7.20 mm × 5.30 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
Block Diagram
VINL
VREF1 VREF2
VINR
Single-End /Differential Converter
Reference
Single-End /Differential Converter
5th Order Delta-Sigma Modulator
5th Order Delta-Sigma Modulator
Power Supply VCC AGND DGND VDD
×1/64 (×1/128) Decimation Filter with
High-Pass Filter
Serial Interface
Mode/ Format Control
Clock and Timing Control
BCK LRCK FSYNC
DOUT
FMT0 FMT1 MODE0 MODE1
BYPAS
OSR PDWN SCKI
B0004-07
Copyright © 2016, 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.
PCM1802
SLES023D – DECEMBER 2001 – REVISED DECEMBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Pin Configuration and Functions ......................... 3 6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4 6.2 ESD Ratings.............................................................. 4 6.3 Recommended Operating Conditions....................... 4 6.4 Thermal Information .................................................. 5 6.5 Electrical Characteristics........................................... 5 6.6 Typical Characteristics .............................................. 7 7 Detailed Description ............................................ 12 7.1 Overview ................................................................. 12 7.2 Functional Block Diagrams ..................................... 12 7.3 Feature Description................................................. 14
7.4 Device Functional Modes........................................ 15 8 Application and Implementation ........................ 22
8.1 Application Information............................................ 22 8.2 Typical Application .................................................. 22 9 Power Supply Recommendations...................... 24 10 Layout................................................................... 24 10.1 Layout Guidelines ................................................. 24 10.2 Layout Example .................................................... 25 11 Device and Documentation Support ................. 26 11.1 Receiving Notification of Documentation Updates 26 11.2 Community Resources.......................................... 26 11.3 Trademarks ........................................................... 26 11.4 Electrostatic Discharge Caution ............................ 26 11.5 Glossary ................................................................ 26 12 Mechanical,.