SBASAI8A
june 2022 – july 2023
ADC12QJ1600-SP
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Description (continued)
5
Revision History
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics: DC Specifications
7.6
Electrical Characteristics: Power Consumption
7.7
Electrical Characteristics: AC Specifications
7.8
Switching Characteristics
7.9
Timing Requirements
7.10
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Analog Input
8.3.1.1
Analog Input Protection
8.3.1.2
Full-Scale Voltage (VFS) Adjustment
8.3.1.3
Analog Input Offset Adjust
8.3.1.4
ADC Core
8.3.1.4.1
ADC Theory of Operation
8.3.1.4.2
ADC Core Calibration
8.3.1.4.3
Analog Reference Voltage
8.3.1.4.4
ADC Over-range Detection
8.3.1.4.5
Code Error Rate (CER)
8.3.2
Temperature Monitoring Diode
8.3.3
Timestamp
8.3.4
Clocking
8.3.4.1
Converter PLL (C-PLL) for Sampling Clock Generation
8.3.4.2
LVDS Clock Outputs (PLLREFO±, TRIGOUT±)
8.3.4.3
Optional CMOS Clock Outputs (ORC, ORD)
8.3.4.4
SYSREF for JESD204C Subclass-1 Deterministic Latency
8.3.4.4.1
SYSREF Capture for Multi-Device Synchronization and Deterministic Latency
8.3.4.4.2
SYSREF Position Detector and Sampling Position Selection (SYSREF Windowing)
8.3.5
JESD204C Interface
8.3.5.1
Transport Layer
8.3.5.2
Scrambler
8.3.5.3
Link Layer
8.3.5.4
8B or 10B Link Layer
8.3.5.4.1
Data Encoding (8B or 10B)
8.3.5.4.2
Multiiframes and the Local Multiframe Clock (LMFC)
8.3.5.4.3
Code Group Synchronization (CGS)
8.3.5.4.4
Initial Lane Alignment Sequence (ILAS)
8.3.5.4.5
Frame and Multiframe Monitoring
8.3.5.5
64B or 66B Link Layer
8.3.5.5.1
64B or 66B Encoding
8.3.5.5.2
Multiblocks, Extended Multiblocks and the Local Extended Multiblock Clock (LEMC)
8.3.5.5.2.1
Block, Multiblock and Extended Multiblock Alignment using Sync Header
8.3.5.5.2.1.1
Cyclic Redundancy Check (CRC) Mode
8.3.5.5.2.1.2
Forward Error Correction (FEC) Mode
8.3.5.5.3
Initial Lane Alignment
8.3.5.5.4
Block, Multiblock and Extended Multiblock Alignment Monitoring
8.3.5.6
Physical Layer
8.3.5.6.1
SerDes Pre-Emphasis
8.3.5.7
JESD204C Enable
8.3.5.8
Multi-Device Synchronization and Deterministic Latency
8.3.5.9
Operation in Subclass 0 Systems
8.3.5.10
Alarm Monitoring
8.3.5.10.1
Clock Upset Detection
8.3.5.10.2
FIFO Upset Detection
8.4
Device Functional Modes
8.4.1
Low Power Mode and High Performance Mode
8.4.2
JESD204C Modes
8.4.2.1
JESD204C Transport Layer Data Formats
8.4.2.2
64B or 66B Sync Header Stream Configuration
8.4.2.3
Redundant Data Mode (Alternate Lanes)
8.4.3
Power-Down Modes
8.4.4
Test Modes
8.4.4.1
Serializer Test-Mode Details
8.4.4.2
PRBS Test Modes
8.4.4.3
Clock Pattern Mode
8.4.4.4
Ramp Test Mode
8.4.4.5
Short and Long Transport Test Mode
8.4.4.5.1
Short Transport Test Pattern
8.4.4.6
D21.5 Test Mode
8.4.4.7
K28.5 Test Mode
8.4.4.8
Repeated ILA Test Mode
8.4.4.9
Modified RPAT Test Mode
8.4.5
Calibration Modes and Trimming
8.4.5.1
Foreground Calibration Mode
8.4.5.2
Background Calibration Mode
8.4.5.3
Low-Power Background Calibration (LPBG) Mode
8.4.6
Offset Calibration
8.4.7
Trimming
8.5
Programming
8.5.1
Using the Serial Interface
8.5.2
SCS
8.5.3
SCLK
8.5.4
SDI
8.5.5
SDO
8.5.6
Streaming Mode
8.5.7
SPI_Register_Map Registers
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
Light Detection and Ranging (LiDAR) Digitizer
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Analog Front-End Requirements
9.2.1.2.2
Calculating Clock and SerDes Frequencies
9.2.1.3
Application Curves
9.3
Initialization Set Up
9.4
Power Supply Recommendations
9.4.1
Power Sequencing
9.5
Layout
9.5.1
Layout Guidelines
9.5.2
Layout Example
10
Device and Documentation Support
10.1
Device Support
10.2
Receiving Notification of Documentation Updates
10.3
Support Resources
10.4
Trademarks
10.5
Electrostatic Discharge Caution
10.6
Glossary
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
ALR|144
MPBGAW0C
Thermal pad, mechanical data (Package|Pins)
Orderable Information
sbasai8a_oa
sbasai8a_pm
1
Features
Radiation Performance:
Total Ionizing Dose (TID): 300 krad (Si)
Single Event Latchup (SEL): 120 MeV-cm2/mg
Single Event Upset (SEU) immune registers
ADC Core:
Resolution: 12 Bit
Maximum sampling rate: 1.6 GSPS
Non-interleaved architecture
Internal dither reduces high-order harmonics
Performance specifications (–1 dBFS):
SNR (100 MHz): 57.4 dBFS
ENOB (100 MHz): 9.1 Bits
SFDR (100 MHz): 64 dBc
Noise floor (–20 dBFS): –147 dBFS
Full-scale input voltage: 800 mV
PP-DIFF
Full-power input bandwidth: 6 GHz
JESD204C Serial data interface:
Support for 2 to 8 total SerDes lanes
Maximum baud-rate: 17.16 Gbps
64B/66B and 8B/10B encoding modes
Subclass-1 support for deterministic latency
Compatible with JESD204B receivers
Optional internal sampling clock generation
Internal PLL and VCO (7.2–8.2 GHz)
SYSREF Windowing eases synchronization
Four clock outputs simplify system clocking
Reference clocks for FPGA or adjacent ADC
Reference clock for SerDes transceivers
Timestamp input and output for pulsed systems
Power consumption (1 GSPS): 1.9W
Power supplies: 1.1 V, 1.9 V