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PCM1789 Datasheet Preview

PCM1789 Datasheet

Audio Digital-to-Analog Converter

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PCM1789
SBAS451B – OCTOBER 2008 – REVISED AUGUST 2015
PCM1789 24-Bit, 192-kHz Sampling, Enhanced Multi-Level ΔΣ,
Stereo, Audio Digital-to-Analog Converter
1 Features
1 Enhanced Multi-Level Delta-Sigma DAC:
– High Performance: Differential, fS = 48 kHz
– THD+N: –94 dB
– SNR: 113 dB
– Dynamic Range: 113 dB
– Sampling Rate: 8 kHz to 192 kHz
– System Clock: 128 fS, 192 fS, 256 fS, 384 fS,
512 fS, 768 fS, 1152 fS
– Differential Voltage Output: 8 VPP
– Analog Low-Pass Filter Included
– 4x/8x Oversampling Digital Filter:
– Passband Ripple: ±0.0018 dB
– Stop Band Attenuation: –75 dB
– Zero Flags (16-, 20-, 24-Bits)
• Flexible Audio Interface:
– I/F Format: I2S, Left-/Right-Justified, DSP
– Data Length: 16, 20, 24, 32 Bits
• Flexible Mode Control:
– 3-Wire SPI, 2-Wire I2C-Compatible Serial
Control Interface, or Hardware Control
– Connect Up To 4 Devices on One SPI Bus
• Multi Functions via SPI or I2C I/F:
– Audio I/F Format Select: I2S, Left-Justified,
Right-Justified, DSP
– Digital Attenuation and Soft Mute
– Digital De-Emphasis: 32kHz, 44.1kHz, 48kHz
– Data Polarity Control
– Power-Save Mode
• Multi Functions via Hardware Control:
– Audio I/F Format Select: I2S, Left-Justified
– Digital De-Emphasis Filter: 44.1kHz
• Analog Mute by Clock Halt Detection
• External Reset Pin
• Power Supplies:
– 5 V for Analog and 3.3 V for Digital
• Package: TSSOP-24
• Operating Temperature Range: –40°C to 85°C
2 Applications
• Blu-ray Disc™ Players
• DVD Players
• AV Receivers
• Home Theaters
• Car Audio External Amplifiers
• Car Audio AVN Applications
3 Description
The PCM1789 is a high-performance, single-chip, 24-
bit, stereo, audio digital-to-analog converter (DAC)
with differential outputs. The two-channel, 24-bit DAC
employs an enhanced multi-level, delta-sigma (ΔΣ)
modulator, and supports 8 kHz to 192 kHz sampling
rates and a 16-, 20-, 24-, 32-bit width digital audio
input word on the audio interface. The audio interface
of PCM1789 supports a 24-bit, DSP format in
addition to I2S, left-justified, and right-justified
formats.
The PCM1789 can be controlled through a three-wire,
SPI-compatible or two-wire, I2C-compatible serial
interface in software, which provides access to all
functions including digital attenuation, soft mute, de-
emphasis, and so forth. Also, hardware control mode
provides two user-programmable functions through
two control pins. The PCM1789 is available in a 24-
pin TSSOP package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
PCM1789
TSSOP (24)
4.40 mm x 7.80 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
PCM1789 Typical Application
DSP
Data
LRCK
BCK
PCM1789
LPF TPA3116D2
LPF TPA3116D2
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.




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PCM1789 Datasheet Preview

PCM1789 Datasheet

Audio Digital-to-Analog Converter

No Preview Available !

PCM1789
SBAS451B – OCTOBER 2008 – REVISED AUGUST 2015
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: Digital Input/Output.......... 5
6.6 Electrical Characteristics: DAC ................................. 6
6.7 Electrical Characteristics: Power-Supply
Requirements............................................................. 7
6.8 System Clock Timing Requirements......................... 7
6.9 Audio Interface Timing Requirements....................... 7
6.10 Three-Wire Timing Requirements .......................... 8
6.11 SCL and SDA Timing Requirements ...................... 8
6.12 Typical Characteristics ............................................ 9
7 Detailed Description ............................................ 13
7.1 Overview ................................................................. 13
7.2 Functional Block Diagram ....................................... 13
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 18
7.5 Register Maps ........................................................ 23
8 Application and Implementation ........................ 29
8.1 Application Information............................................ 29
8.2 Typical Application ................................................. 31
8.3 Application Curve .................................................... 32
9 Power Supply Recommendations...................... 32
10 Layout................................................................... 33
10.1 Layout Guidelines ................................................. 33
10.2 Layout Example .................................................... 33
11 Device and Documentation Support ................. 34
11.1 Documentation Support ........................................ 34
11.2 Community Resources.......................................... 34
11.3 Trademarks ........................................................... 34
11.4 Electrostatic Discharge Caution ............................ 34
11.5 Glossary ................................................................ 34
12 Mechanical, Packaging, and Orderable
Information ........................................................... 34
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (January 2009) to Revision B
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes section, Application and
Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation
Support section, and Mechanical, Packaging, and Orderable Information section. .............................................................. 1
Changes from Original (October 2008) to Revision A
Page
• Changed Figure 39 .............................................................................................................................................................. 31
2 Submit Documentation Feedback
Product Folder Links: PCM1789
Copyright © 2008–2015, Texas Instruments Incorporated


Part Number PCM1789
Description Audio Digital-to-Analog Converter
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