SBAS958A
December 2019 – June 2020
ADC3421-Q1
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Spectrum at 10-MHz IF SFDR = 90 dBc, SNR = 71.2 dBFS, SINAD = 71.1 dBFS, THD = 89 dBc
4
Revision History
5
Pin Configuration and Functions
Pin 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: General
6.6
Electrical Characteristics: AC Performance
6.7
Digital Characteristics
6.8
Timing Requirements: General
6.9
Timing Requirements: LVDS Output
6.10
Typical Characteristics
7
Parameter Measurement Information
7.1
Timing Diagrams
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Analog Inputs
8.3.2
Clock Input
8.3.2.1
SNR and Clock Jitter
8.3.3
Digital Output Interface
8.3.3.1
One-Wire Interface: 12x Serialization
8.3.3.2
Two-Wire Interface: 6x Serialization
8.4
Device Functional Modes
8.4.1
Input Clock Divider
8.4.2
Chopper Functionality
8.4.3
Power-Down Control
8.4.4
Internal Dither Algorithm
8.4.5
Summary of Performance Mode Registers
8.4.6
Device Diagnostic Modes
8.4.6.1
Internal Reference and Clock Status Check
8.4.6.2
DC Input check
8.4.6.3
Mean and Variance Measurement
8.4.6.4
Temperature Sensor
8.5
Programming
8.5.1
Serial Interface
8.5.1.1
Register Initialization
8.5.1.1.1
Serial Register Write
8.5.1.1.2
Serial Register Readout
8.5.2
Register Initialization
8.6
Register Maps
8.6.1
Serial Register Description
8.6.1.1
Register 01h (address = 01h)
Table 7.
Register 01h Field Descriptions
8.6.1.2
Register 02h (address = 02h)
Table 8.
Register 02h Field Descriptions
8.6.1.3
Register 03h (address = 03h)
Table 9.
Register 03h Field Descriptions
8.6.1.4
Register 04h (address = 04h)
Table 10.
Register 04h Field Descriptions
8.6.1.5
Register 05h (address = 05h)
Table 11.
Register 05h Field Descriptions
8.6.1.6
Register 06h (address = 06h)
Table 12.
Register 06h Field Descriptions
8.6.1.7
Register 07h (address = 07h)
Table 13.
Register 07h Field Descriptions
8.6.1.8
Register 09h (address = 09h)
Table 14.
Register 09h Field Descriptions
8.6.1.9
Register 0Ah (address = 0Ah)
Table 15.
Register 0Ah Field Descriptions
8.6.1.10
Register 0Bh (address = 0Bh)
Table 16.
Register 0Bh Field Descriptions
8.6.1.11
Register 0Eh (address = 0Eh)
Table 17.
Register 0Eh Field Descriptions
8.6.1.12
Register 0Fh (address = 0Fh)
Table 18.
Register 0Fh Field Descriptions
8.6.1.13
Register 10h (address = 10h)
Table 19.
Register 10h Field Descriptions
8.6.1.14
Register 11h (address = 11h)
Table 20.
Register 11h Field Descriptions
8.6.1.15
Register 13h (address = 13h)
Table 21.
Register 13h Field Descriptions
8.6.1.16
Register 14h (address = 14h)
Table 23.
Register 14h Field Descriptions
8.6.1.17
Register 15h (address = 15h)
Table 24.
Register 15h Field Descriptions
8.6.1.18
Register 16h (address = 16h)
Table 25.
Register 16h Field Descriptions
8.6.1.19
Register 17h (address = 17h)
Table 26.
Register 17h Field Descriptions
8.6.1.20
Register 18h (address = 18h)
Table 27.
Register 18h Field Descriptions
8.6.1.21
Register 19h (address = 19h)
Table 28.
Register 19h Field Descriptions
8.6.1.22
Register 25h (address = 25h)
Table 29.
Register 25h Field Descriptions
8.6.1.23
Register 27h (address = 27h)
Table 30.
Register 27h Field Descriptions
8.6.1.24
Register 4Bh (address = 4Bh)
Table 31.
Register 4Bh Field Descriptions
8.6.1.25
Register 11Dh (address = 11Dh)
Table 32.
Register 11Dh Field Descriptions
8.6.1.26
Register 122h (address = 122h)
Table 33.
Register 122h Field Descriptions
8.6.1.27
Register 134h (address = 134h)
Table 34.
Register 134h Field Descriptions
8.6.1.28
Register 139h (address = 139h)
Table 35.
Register 139h Field Descriptions
8.6.1.29
Register 21Dh (address = 21Dh)
Table 36.
Register 21Dh Field Descriptions
8.6.1.30
Register 222h (address = 222h)
Table 37.
Register 222h Field Descriptions
8.6.1.31
Register 234h (address = 234h)
Table 38.
Register 234h Field Descriptions
8.6.1.32
Register 239h (address = 239h)
Table 39.
Register 239h Field Descriptions
8.6.1.33
Register 308h (address = 308h)
Table 40.
Register 308h Field Descriptions
8.6.1.34
Register 31Dh (address = 31Dh)
Table 41.
Register 31Dh Field Descriptions
8.6.1.35
Register 41Dh (address = 41Dh)
Table 42.
Register 41Dh Field Descriptions
8.6.1.36
Register 422h (address = 422h)
Table 43.
Register 422h Field Descriptions
8.6.1.37
Register 434h (address = 434h)
Table 44.
Register 434h Field Descriptions
8.6.1.38
Register 439h (address = 439h)
Table 45.
Register 439h Field Descriptions
8.6.1.39
Register 51Dh (address = 51Dh)
Table 46.
Register 51Dh Field Descriptions
8.6.1.40
Register 522h (address = 522h)
Table 47.
Register 522h Field Descriptions
8.6.1.41
Register 534h (address = 534h)
Table 48.
Register 534h Field Descriptions
8.6.1.42
Register 539h (address = 539h)
Table 49.
Register 539h Field Descriptions
8.6.1.43
Register 608h (address = 608h)
Table 50.
Register 608h Field Descriptions
8.6.1.44
Register 61Dh (address = 61Dh)
Table 51.
Register 61Dh Field Descriptions
8.6.1.45
Register 70Ah (address = 70Ah)
Table 52.
Register 70Ah Field Descriptions
8.6.1.46
Register 71Ah (address = 71Ah)
Table 53.
Register 71Ah Field Descriptions
9
Applications and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
Driving Circuit Design: Low Input Frequencies
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.3
Application Curve
9.2.2
Driving Circuit Design: Input Frequencies Between 100 MHz to 230 MHz
9.2.2.1
Design Requirements
9.2.2.2
Detailed Design Procedure
9.2.2.3
Application Curve
9.2.3
Driving Circuit Design: Input Frequencies Greater than 230 MHz
9.2.3.1
Design Requirements
9.2.3.2
Detailed Design Procedure
9.2.3.3
Application Curve
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RWE|56
MPQF405A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbas958a_oa
sbas958a_pm
8.2
Functional Block Diagram