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PCM1690 Datasheet Preview

PCM1690 Datasheet

Eight-Channel Audio Digital-to-Analog Converter

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Burr-Brown Audio
PCM1690
SBAS448B – OCTOBER 2008 – REVISED AUGUST 2015
PCM1690 24-Bit, 192-kHz Sampling, Enhanced Multi-Level ΔΣ,
Eight-Channel Audio Digital-to-Analog Converter
1 Features
1 24-Bit Delta-Sigma DAC
• 8-Channel 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 Lowpass Filter Included
– 4x/8x Oversampling Digital Filter:
– Passband Ripple: ±0.0018 dB
– Stop Band Attenuation: –75 dB
– Zero Flag
• Flexible Audio Interface:
– I/F Format: I2S™, Left-/Right-Justified, DSP,
TDM
– Data Length: 16, 20, 24, 32 Bits
• Flexible Mode Control:
– 3-Wire SPI, 2-Wire I2C-Compatible Serial
Control Interface, or
Hardware Control
• Multiple Functions Through SPI or I2C I/F:
– Audio I/F Format Select: I2S, Left-Justified,
Right-Justified, DSP, TDM
– Digital Attenuation and Soft Mute
– Digital De-Emphasis: 32 kHz, 44.1 kHz,
48 kHz
– Data Polarity Control
– Power Down
• Multiple Functions Through H/W Control:
– Audio I/F Format Select: I2S, TDM
– Digital De-Emphasis Filter: 44.1 kHz
• Analog Mute by Clock Halt Detection
• External RESET Pin
• Power Supplies:
– 5 V for Analog and 3.3 V for Digital
• Package: HTSSOP-48
• Operating Temperature Range:
– –40°C to +85°C
2 Applications
• Blu-ray™ DVD Players
• HD DVD Players
• AV Receivers
• Home Theaters
• Car Audio External Amplifiers
• Car Audio AVN Applications
3 Description
The PCM1690 device is a high-performance, single-
chip, 24-bit, eight-channel, audio digital-to-analog
converter (DAC) with differential outputs. The eight-
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 the PCM1690 supports the
time-division-multiplexed (TDM) format in addition to
the standard I2S, left-justified, right-justified, and DSP
formats.
The PCM1690 can be controlled through a three-wire,
SPI-compatible interface, 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 a subset of user-programmable
functions through two control pins. The PCM1690 is
available in a 12-mm × 8-mm (12-mm × 6-mm body)
HTSSOP-48 package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
PCM1690
HTSSOP (48) 12.50 mm × 6.10 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Application Diagram
DSP
/4 Data
LRCK
BCK
PCM1690
LPF TPA3116D2
x8
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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PCM1690 Datasheet Preview

PCM1690 Datasheet

Eight-Channel Audio Digital-to-Analog Converter

No Preview Available !

PCM1690
SBAS448B – 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......................................................... 5
6.1 Absolute Maximum Ratings ..................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 6
6.5 Electrical Characteristics: Digital Input/Output.......... 6
6.6 Electrical Characteristics: DAC ................................. 7
6.7 Electrical Characteristics: Power-Supply
Requirements............................................................. 8
6.8 System Clock Timing Requirements......................... 8
6.9 Audio Interface Timing Requirements for Left-
Justified, Right-Justified, and I2S Data Formats........ 9
6.10 Audio Interface Timing Requirements for DSP and
TDM Data Formats .................................................... 9
6.11 Three-Wire Serial Control Interface Timing
Requirements............................................................. 9
6.12 SCL and SDA Control Interface Timing
Requirements............................................................. 9
6.13 Typical Characteristics .......................................... 12
7 Detailed Description ............................................ 17
7.1 Overview ................................................................. 17
7.2 Functional Block Diagram ....................................... 17
7.3 Feature Description................................................. 18
7.4 Device Functional Modes........................................ 24
7.5 Register Maps ......................................................... 28
8 Application and Implementation ........................ 35
8.1 Application Information............................................ 35
8.2 Typical Application ................................................. 36
9 Power Supply Recommendations...................... 39
10 Layout................................................................... 39
10.1 Layout Guidelines ................................................. 39
10.2 Layout Example .................................................... 39
11 Device and Documentation Support ................. 40
11.1 Device Support...................................................... 40
11.2 Documentation Support ........................................ 40
11.3 Community Resources.......................................... 40
11.4 Trademarks ........................................................... 40
11.5 Electrostatic Discharge Caution ............................ 40
11.6 Glossary ................................................................ 40
12 Mechanical, Packaging, and Orderable
Information ........................................................... 40
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 Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes, 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 41 .............................................................................................................................................................. 37
2 Submit Documentation Feedback
Product Folder Links: PCM1690
Copyright © 2008–2015, Texas Instruments Incorporated


Part Number PCM1690
Description Eight-Channel Audio Digital-to-Analog Converter
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