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PCM1681-Q1 Datasheet Preview

PCM1681-Q1 Datasheet

Eight-Channel Audio Digital-to-Analog Converter

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Burr-Brown Audio
PCM1681, PCM1681-Q1
SLES211C – FEBRUARY 2008 – REVISED JULY 2015
PCM1681 24-Bit, 192-kHz Sampling, Enhanced Multilevel Delta-Sigma,
Eight-Channel Audio Digital-to-Analog Converter
1 Features
1 Qualified for Automotive Applications: PCM1681-
Q1
• 24-Bit Resolution
• Analog Performance:
– Dynamic Range: 105 dB Typical
– SNR: 105 dB Typical
– THD+N: 0.002% Typical
– Full-Scale Output: 3.75 VPP Typical
• 4×/8× Oversampling Interpolation Filter:
– Stop-Band Attenuation: –57 dB
– Pass-Band Ripple: ±0.015 dB
• Sampling Frequency: 5 kHz to 200 kHz
• System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512
fS, 768 fS, or 1152 fS with Autodetect
• Zero Flags for Selectable Channel Combinations
• Flexible Mode Control:
– SPI™/I2C™ Dual Mode for Serial Port
– Parallel Hardware Control with 4 Functions
• User-Programmable Functions (in SPI/I2C):
– Flexible Audio Data Formats:
– Right-Justified, I2S™, Left-Justified, TDM,
DSP
– 16- and 24-Bit Audio Data
– Digital Attenuation: Mode Selectable
– 0 dB to –63 dB, 0.5 dB/step
– 0 dB to –100 dB, 1 dB/step
– Soft Mute
– Digital De-Emphasis
– Digital Filter Roll-Off: Sharp or Slow
– Oversampling Mode
• User-Programmable Functions (in H/W):
– Flexible Audio Data Formats:
– Right-Justified, I2S, Left-Justified, TDM
– Soft Mute
– Digital De-Emphasis
– Oversampling Mode
• Power Supply Voltage: 5-V Analog, 3.3-V Digital
• Package: 28-Lead HTSSOP PowerPAD™
• Operation Temperature Range:
– –40°C to 85°C for Consumer Grade
– –40°C to 105°C for Automotive Audio Grade
2 Applications
• Car Audio External Amplifiers
• Car Audio AVN Applications
• Integrated A/V Receivers
• DVD Movie and Audio Players
• HDTV Receivers
• DVD Add-On Cards for High-End PCs
• Digital Audio Workstations
• Other Multichannel Audio Systems
3 Description
The PCM1681 and PCM1681-Q1 are CMOS
monolithic integrated circuits which feature an eight-
channel 24-bit audio digital-to-analog converter
(DAC) and support circuitry in small 28-lead TSSOP
PowerPAD packages. The DACs utilize Burr-Brown's
enhanced multilevel delta-sigma (ΔΣ) architecture to
achieve excellent signal-to-noise performance and a
high tolerance to clock jitter.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
PCM1681
PCM1681-Q1
HTSSOP (28)
9.70 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Functional Block Diagram
BCK
LRCK
DATA1 (1, 2)
DATA2 (3, 4)
DATA3 (5, 6)
DATA4 (7, 8)
MS/ADR/FMT1
MC/SCL/DEMP
MD/SDA/MUTE
MSEL
SCK
Serial
Input
I/F
8
Oversampling
Digital Filter
With
Function
Controller
Enhanced
Multilevel
Delta-Sigma
Modulator
Function
Control
I/F
System Clock
System Clock
Manager
Zero Detect
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Output Amp and
Low-Pass Filter
Power Supply
VOUT1
VOUT2
VOUT3
VCOM
VOUT4
VOUT5
VOUT6
VOUT7
VOUT8
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.




etcTI

PCM1681-Q1 Datasheet Preview

PCM1681-Q1 Datasheet

Eight-Channel Audio Digital-to-Analog Converter

No Preview Available !

PCM1681, PCM1681-Q1
SLES211C – FEBRUARY 2008 – REVISED JULY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description (continued)......................................... 3
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ..................................... 5
7.2 ESD Ratings: PCM1681 ........................................... 5
7.3 ESD Ratings: PCM1681-Q1 ..................................... 5
7.4 Recommended Operating Conditions....................... 6
7.5 Thermal Information .................................................. 6
7.6 Electrical Characteristics........................................... 7
7.7 Interface Timing Requirements................................. 9
7.8 Typical Characteristics ............................................ 10
8 Detailed Description ............................................ 14
8.1 Overview ................................................................. 14
8.2 Functional Block Diagram ....................................... 14
8.3 Feature Description................................................. 15
8.4 Device Functional Modes........................................ 24
8.5 Programming........................................................... 24
8.6 Register Maps ......................................................... 26
9 Application and Implementation ........................ 32
9.1 Application Information............................................ 32
9.2 Typical Application ................................................. 32
10 Power Supply Recommendations ..................... 34
11 Layout................................................................... 35
11.1 Layout Guidelines ................................................. 35
11.2 Layout Example .................................................... 35
12 Device and Documentation Support ................. 36
12.1 Device Support .................................................... 36
12.2 Documentation Support ........................................ 36
12.3 Related Links ........................................................ 36
12.4 Trademarks ........................................................... 36
12.5 Electrostatic Discharge Caution ............................ 36
12.6 Glossary ................................................................ 36
13 Mechanical, Packaging, and Orderable
Information ........................................................... 36
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (June 2008) to Revision C
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 Revision A (June 2008) to Revision B
Page
• Added new device grade PCM1681-Q1 ................................................................................................................................. 1
• Changed device names in Operating Free-Air Temperature row of the Recommended Operating Conditions table ........... 6
• Changed device names in Operating Temperature row of Temperature Range section in the Electrical
Characteristics table ............................................................................................................................................................... 8
• Added third paragraph to PCB Layout Guidelines section................................................................................................... 35
Changes from Original (February 2008) to Revision A
Page
• Added last sub-level bullet to Features ................................................................................................................................. 1
• Added first two bullets to Applications ................................................................................................................................... 1
• Changed last sentence in Description ................................................................................................................................... 1
• Added last row to Recommended Operating Conditions table............................................................................................... 6
• Added second row to Temperature Range section of the Electrical Characteristics table .................................................... 8
2 Submit Documentation Feedback
Copyright © 2008–2015, Texas Instruments Incorporated
Product Folder Links: PCM1681 PCM1681-Q1


Part Number PCM1681-Q1
Description Eight-Channel Audio Digital-to-Analog Converter
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