SBAS603B
April 2013 – November 2020
ADS4449
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Digital Characteristics
6.7
Timing Requirements
6.8
Timing Characteristics, Serial interface
6.9
Typical Characteristics
6.10
Typical Characteristics: Contour
7
Parameter Measurement Information
7.1
LVDS Output Timing
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Overrange Indication (OVRxx)
8.3.2
Gain for SFDR and SNR Trade-Off
8.4
Device Functional Modes
8.4.1
Special Performance Modes
8.4.2
Digital Output Information
8.4.2.1
DDR LVDS Outputs
8.4.2.1.1
LVDS Output Data and Clock Buffers
8.4.2.1.2
Output Data Format
8.4.3
Using High SNR Mode Register Settings
8.4.4
Input Common Mode
8.5
Programming
8.5.1
Serial Interface
8.5.1.1
Register Initialization
8.5.1.2
Serial Register Readout
8.6
Register Maps
8.6.1
Register Description
8.6.1.1
Register Address 00h (Default = 00h)
8.6.1.2
Register Address 01h (Default = 00h)
8.6.1.3
Register Address 25h (Default = 00h)
8.6.1.4
Register Address 2bh (Default = 00h)
8.6.1.5
Register Address 31h (Default = 00h)
8.6.1.6
Register Address 37h (Default = 00h)
8.6.1.7
Register Address 3dh (Default = 00h)
8.6.1.8
Register Address 3fh (Default = 00h)
8.6.1.9
Register Address 40h (Default = 00h)
8.6.1.10
Register Address 42h (Default = 00h)
8.6.1.11
Register Address 45h (Default = 00h)
8.6.1.12
Register Address 4ah (Defalut = 00h)
8.6.1.13
Register Address 62h (Default = 00h)
8.6.1.14
Register Address 7ah (Default = 00h)
8.6.1.15
Register Address 92h (Default = 00h)
8.6.1.16
Register Address A9h (Default = 00h)
8.6.1.17
Register Address Ach (Default = 00h)
8.6.1.18
Register Address C3h (Default = 00h)
8.6.1.19
Register Address C4h (Default = 00h)
8.6.1.20
Register Address Cfh (Default = 00h)
8.6.1.21
Register Address D6h (Default = 00h)
8.6.1.22
Register Address D7h (Default = 00h)
8.6.1.23
Register Address F1h (Default = 00h)
8.6.1.24
Register Address 58h (Default = 00h)
8.6.1.25
Register Address 59h (Default = 00h)
8.6.1.26
Register Address 70h (Default = 00h)
8.6.1.27
Register Address 71h (Default = 00h)
8.6.1.28
Register Address 88h (Default = 00h)
8.6.1.29
Register Address 89h (Default = 00h)
8.6.1.30
Register Address A0h (Default = 00h)
8.6.1.31
Register Address A1h (Default = 00h)
8.6.1.32
Register Address Feh (Default = 00h)
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
9.2.4
Enabling 14-Bit Resolution
9.2.5
Analog Input
9.2.6
Drive Circuit Requirements
9.2.7
Clock Input
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Device Nomenclature
12.2
Documentation Support
12.2.1
Related Documentation
12.3
Receiving Notification of Documentation Updates
12.4
Support Resources
12.5
Trademarks
12.6
Electrostatic Discharge Caution
12.7
Glossary
Package Options
Mechanical Data (Package|Pins)
ZCR|144
MPBGA77A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbas603b_oa
sbas603b_pm
8.6.1.24
Register Address 58h (Default = 00h)
7
6
5
4
3
2
1
0
0
0
HIGH SNR MODE CH A
0
0
0
0
0
Bits 7-6
Always write 0
Bit 5
HIGH SNR MODE CH A
See the
Section 8.4.3
section.
Bits 4-0
Always write 0