SBAS669A
May 2014 – January 2015
ADC34J22
,
ADC34J23
,
ADC34J24
,
ADC34J25
PRODUCTION DATA.
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Summary of Special Mode Registers
7.5
Thermal Information
7.6
Electrical Characteristics: ADC34J24, ADC34J25
7.7
Electrical Characteristics: ADC34J22, ADC34J23
7.8
Electrical Characteristics: General
7.9
AC Performance: ADC34J25
7.10
AC Performance: ADC34J24
7.11
AC Performance: ADC34J23
7.12
AC Performance: ADC34J22
7.13
Digital Characteristics
7.14
Timing Characteristics
7.15
Typical Characteristics: ADC34J25
7.16
Typical Characteristics: ADC34J24
7.17
Typical Characteristics: ADC34J23
7.18
Typical Characteristics: ADC34J22
7.19
Typical Characteristics: Common Plots
7.20
Typical Characteristics: Contour Plots
8
Parameter Measurement Information
8.1
Timing Diagrams
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Analog Inputs
9.3.2
Clock Input
9.3.2.1
SNR and Clock Jitter
9.3.2.2
Input Clock Divider
9.3.3
Power-Down Control
9.3.4
Internal Dither Algorithm
9.3.5
JESD204B Interface
9.3.5.1
JESD204B Initial Lane Alignment (ILA)
9.3.5.2
JESD204B Test Patterns
9.3.5.3
JESD204B Frame Assembly
9.3.5.4
Digital Outputs
9.4
Device Functional Modes
9.4.1
Digital Gain
9.4.2
Overrange Indication
9.5
Programming
9.5.1
Serial Interface
9.5.1.1
Register Initialization
9.5.1.1.1
Serial Register Write
9.5.1.1.2
Serial Register Readout
9.5.2
Register Initialization
9.5.3
Start-Up Sequence
9.6
Register Map
9.6.1
Serial Register Description
10
Application and Implementation
10.1
Application Information
10.2
Typical Applications
10.2.1
Driving Circuit Design: Low Input Frequencies
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedure
10.2.1.3
Application Curve
10.2.2
Driving Circuit Design: Input Frequencies Between 100 MHz to 230 MHz
10.2.2.1
Design Requirements
10.2.2.2
Detailed Design Procedure
10.2.2.3
Application Curve
10.2.3
Driving Circuit Design: Input Frequencies Greater than 230 MHz
10.2.3.1
Design Requirements
10.2.3.2
Detailed Design Procedure
10.2.3.3
Application Curve
11
Power-Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Related Links
13.2
Trademarks
13.3
Electrostatic Discharge Caution
13.4
Glossary
14
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
RGZ|48
MPQF123F
Thermal pad, mechanical data (Package|Pins)
RGZ|48
QFND131R
Orderable Information
sbas669a_oa
sbas669a_pm
8 Parameter Measurement Information
8.1 Timing Diagrams
1. Overall latency = ADC latency + t
D
.
2. x = A for channel A and B for channel B.
Figure 143. ADC Latency
1. x = A for channel A, B for channel B, C for channel C, and D for channel D.
Figure 144. SYNC~ Latency in CGS Phase (Two-Lane Mode)
1. x = A for channel A, B for channel B, C for channel C, and D for channel D.
Figure 145. SYNC~ Latency in ILAS Phase (Two-Lane Mode)
Figure 146. SYSREF Timing (Subclass 1)
Figure 147. SYNC~ Timing (Subclass 2)