SBAS664B May   2014  – November 2014 ADC34J42 , ADC34J43 , ADC34J44 , ADC34J45

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  Handling Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Summary of Special Mode Registers
    5. 7.5  Thermal Information
    6. 7.6  Electrical Characteristics: ADC34J44, ADC34J45
    7. 7.7  Electrical Characteristics: ADC34J42, ADC34J43
    8. 7.8  Electrical Characteristics: General
    9. 7.9  AC Performance: ADC34J45
    10. 7.10 AC Performance: ADC34J44
    11. 7.11 AC Performance: ADC34J43
    12. 7.12 AC Performance: ADC34J42
    13. 7.13 Digital Characteristics
    14. 7.14 Timing Characteristics
    15. 7.15 Typical Characteristics: ADC34J45
    16. 7.16 Typical Characteristics: ADC34J44
    17. 7.17 Typical Characteristics: ADC34J43
    18. 7.18 Typical Characteristics: ADC34J42
    19. 7.19 Typical Characteristics: Common Plots
    20. 7.20 Typical Characteristics: Contour Plots
  8. 8 Parameter Measurement Information
    1. 8.1 Timing Diagrams
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Analog Inputs
      2. 9.3.2 Clock Input
        1. 9.3.2.1 SNR and Clock Jitter
        2. 9.3.2.2 Input Clock Divider
      3. 9.3.3 Power-Down Control
      4. 9.3.4 Internal Dither Algorithm
      5. 9.3.5 JESD204B Interface
        1. 9.3.5.1 JESD204B Initial Lane Alignment (ILA)
        2. 9.3.5.2 JESD204B Test Patterns
        3. 9.3.5.3 JESD204B Frame Assembly
        4. 9.3.5.4 Digital Outputs
    4. 9.4 Device Functional Modes
      1. 9.4.1 Digital Gain
      2. 9.4.2 Overrange Indication
    5. 9.5 Programming
      1. 9.5.1 Serial Interface
        1. 9.5.1.1 Register Initialization
          1. 9.5.1.1.1 Serial Register Write
          2. 9.5.1.1.2 Serial Register Readout
      2. 9.5.2 Register Initialization
      3. 9.5.3 Start-Up Sequence
    6. 9.6 Register Map
      1. 9.6.1 Serial Register Description
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Driving Circuit Design: Low Input Frequencies
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
        3. 10.2.1.3 Application Curve
      2. 10.2.2 Driving Circuit Design: Input Frequencies Between 100 MHz to 230 MHz
        1. 10.2.2.1 Design Requirements
        2. 10.2.2.2 Detailed Design Procedure
        3. 10.2.2.3 Application Curve
      3. 10.2.3 Driving Circuit Design: Input Frequencies Greater than 230 MHz
        1. 10.2.3.1 Design Requirements
        2. 10.2.3.2 Detailed Design Procedure
        3. 10.2.3.3 Application Curve
  11. 11Power-Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Related Links
    2. 13.2 Trademarks
    3. 13.3 Electrostatic Discharge Caution
    4. 13.4 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Quad Channel
  • 14-Bit Resolution
  • Single 1.8-V Supply
  • Flexible Input Clock Buffer with Divide-by-1, -2, -4
  • SNR = 72 dBFS, SFDR = 86 dBc at
    fIN = 70 MHz
  • Ultra-Low Power Consumption:
    • 203 mW/Ch at 160 MSPS
  • Channel Isolation: 105 dB
  • Internal Dither
  • JESD204B Serial Interface:
    • Supports Subclass 0, 1, 2
    • Supports One Lane per ADC up to 160 MSPS
  • Support for Multi-Chip Synchronization
  • Pin-to-Pin Compatible with 12-Bit Version
  • Package: VQFN-48 (7 mm × 7 mm)

2 Applications

  • Multi-Carrier, Multi-Mode Cellular Base Stations
  • Radar and Smart Antenna Arrays
  • Munitions Guidance
  • Motor Control Feedback
  • Network and Vector Analyzers
  • Communications Test Equipment
  • Nondestructive Testing
  • Microwave Receivers
  • Software Defined Radios (SDRs)
  • Quadrature and Diversity Radio Receivers

3 Description

The ADC34J4x is a high-linearity, ultra-low power, quad-channel, 14-bit, 50-MSPS to 160-MSPS, analog-to-digital converter (ADC). The devices are designed specifically to support demanding, high input frequency signals with large dynamic range requirements. A clock input divider allows more flexibility for system clock architecture design while the SYSREF input enables complete system synchronization. The ADC34J4x family supports serial current-mode logic (CML) and JESD204B interfaces in order to reduce the number of interface lines, thus allowing high system integration density. The JESD204B interface is a serial interface, where the data of each ADC are serialized and output over only one differential pair. An internal phase-locked loop (PLL) multiplies the incoming ADC sampling clock by 20 to derive the bit clock that is used to serialize the 14-bit data from each channel. The ADC34J4x devices support subclass 1 with interface speeds up to 3.2 Gbps.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
ADC34J4x VQFN (48) 7.00 mm × 7.00 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

FFT with Dither On
(fS = 160 MSPS, fIN = 10 MHz, SNR = 72.5 dBFS, SFDR = 88 dBc)

C001_BAS664.png

4 Revision History

Changes from A Revision (August 2014) to B Revision

  • Changed document status from Mixed Status to Production DataGo
  • Changed ADC43J2, ADC43J3, and ADC43J4 status to Production DataGo

Changes from * Revision (May 2014) to A Revision

  • Changed document status from Product Preview to Mixed Status: ADC34J45 releasing as Production DataGo
  • Made changes to product preview data sheetGo