SLVSDR3C may   2018  – may 2023 ADC12DL3200

PRODUCTION DATA  

  1.   1
  2. 1Features
  3. 2Applications
  4. 3Description
  5. 4Revision History
  6. 5Pin Configuration and Functions
  7. 6Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: DC Specifications
    6. 6.6  Electrical Characteristics: Power Consumption
    7. 6.7  Electrical Characteristics: AC Specifications (Dual-Channel Mode)
    8. 6.8  Electrical Characteristics: AC Specifications (Single-Channel Mode)
    9. 6.9  Timing Requirements
    10. 6.10 Switching Characteristics
    11. 6.11 Typical Characteristics
  8. 7Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Analog Inputs
        1. 7.3.1.1 Analog Input Protection
        2. 7.3.1.2 Full-Scale Voltage (VFS) Adjustment
        3. 7.3.1.3 Analog Input Offset Adjust
      2. 7.3.2 ADC Core
        1. 7.3.2.1 ADC Theory of Operation
        2. 7.3.2.2 ADC Core Calibration
        3. 7.3.2.3 ADC Overrange Detection
        4. 7.3.2.4 Code Error Rate (CER)
        5. 7.3.2.5 Internal Dither
      3. 7.3.3 Timestamp
      4. 7.3.4 Clocking
        1. 7.3.4.1 Noiseless Aperture Delay Adjustment (tAD Adjust)
        2. 7.3.4.2 Aperture Delay Ramp Control (TAD_RAMP)
        3. 7.3.4.3 SYSREF Capture for Multi-Device Synchronization and Deterministic Latency
          1. 7.3.4.3.1 SYSREF Position Detector and Sampling Position Selection (SYSREF Windowing)
          2. 7.3.4.3.2 Automatic SYSREF Calibration
      5. 7.3.5 LVDS Digital Interface
        1. 7.3.5.1 Multi-Device Synchronization and Deterministic Latency Using Strobes
          1. 7.3.5.1.1 Dedicated Strobe Pins
          2. 7.3.5.1.2 Reduced Width Interface With Dedicated Strobe Pins
          3. 7.3.5.1.3 LSB Replacement With a Strobe
          4. 7.3.5.1.4 Strobe Over All Data Pairs
      6. 7.3.6 Alarm Monitoring
        1. 7.3.6.1 Clock Upset Detection
      7. 7.3.7 Temperature Monitoring Diode
      8. 7.3.8 Analog Reference Voltage
    4. 7.4 Device Functional Modes
      1. 7.4.1 Dual-Channel Mode (Non-DES Mode)
      2. 7.4.2 Internal Dither Modes
      3. 7.4.3 Single-Channel Mode (DES Mode)
      4. 7.4.4 LVDS Output Driver Modes
      5. 7.4.5 LVDS Output Modes
        1. 7.4.5.1 Staggered Output Mode
        2. 7.4.5.2 Aligned Output Mode
        3. 7.4.5.3 Reducing the Number of Strobes
        4. 7.4.5.4 Reducing the Number of Data Clocks
        5. 7.4.5.5 Scrambling
        6. 7.4.5.6 Digital Interface Test Patterns and LVSD SYNC Functionality
          1. 7.4.5.6.1 Active Pattern
          2. 7.4.5.6.2 Synchronization Pattern
          3. 7.4.5.6.3 User-Defined Test Pattern
      6. 7.4.6 Power-Down Modes
      7. 7.4.7 Calibration Modes and Trimming
        1. 7.4.7.1 Foreground Calibration Mode
        2. 7.4.7.2 Background Calibration Mode
        3. 7.4.7.3 Low-Power Background Calibration (LPBG) Mode
      8. 7.4.8 Offset Calibration
      9. 7.4.9 Trimming
    5. 7.5 Programming
      1. 7.5.1 Using the Serial Interface
        1. 7.5.1.1 SCS
        2. 7.5.1.2 SCLK
        3. 7.5.1.3 SDI
        4. 7.5.1.4 SDO
        5. 7.5.1.5 78
        6. 7.5.1.6 Streaming Mode
        7. 7.5.1.7 80
    6. 7.6 Register Maps
      1. 7.6.1 SPI_REGISTER_MAP Registers
  9.   Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Wideband RF Sampling Receiver
        1. 8.2.1.1 Design Requirements
          1. 8.2.1.1.1 Input Signal Path
          2. 8.2.1.1.2 Clocking
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Calculating Values of AC-Coupling Capacitors
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Reconfigurable Dual-Channel, 2.5-GSPS or Single-Channel, 5.0-GSPS Oscilloscope
        1. 8.2.2.1 Design Requirements
          1. 8.2.2.1.1 Input Signal Path
          2. 8.2.2.1.2 Clocking
          3. 8.2.2.1.3 The ADC12DL3200
        2. 8.2.2.2 Application Curves
    3. 8.3 Initialization Set Up
    4. 8.4 Power Supply Recommendations
      1. 8.4.1 Power Sequencing
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 8Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  11. 9Mechanical, Packaging, and Orderable Information

Typical Characteristics

typical values are at TA = 25°C, nominal supply voltages, default full-scale voltage (FS_RANGE_A = FS_RANGE_B = 0xA000), fIN = 248 MHz, AIN = –1 dBFS, fCLK = maximum rated clock frequency, filtered 1-VPP sine-wave clock, DES_EN = 1, LDEMUX = 1, LALIGNED = 0, ADC_DITH = 0x01, LVDS driver high-swing mode (HSM), and background calibration (unless otherwise noted); SNR results exclude DC, HD2 to HD9 and interleaving spurs; SINAD, ENOB, and SFDR results exclude DC and signal-independent interleaving spurs (fS / 4 and fS / 2 spurs)

GUID-6DF2B5E2-D689-4485-B143-A76025C5F566-low.gif
DES_EN = 0, fS = 3200 MHz, foreground (FG) and background (BG) calibration
Figure 6-10 SNR vs Input Frequency
GUID-0696B7F0-AF2A-4D2A-970C-5E45C03FB5F7-low.gif
DES_EN = 0, fS = 3200 MHz, FG and BG calibration
Figure 6-12 SINAD vs Input Frequency
GUID-2DCD4AD0-4138-4AD8-B8FD-56C77EA870A2-low.gif
DES_EN = 0, fS = 3200 MHz, FG and BG calibration
Figure 6-14 ENOB vs Input Frequency
GUID-C3027EF9-7168-4143-BCDC-5F4ED15323E0-low.gif
DES_EN = 0, fS = 3200 MHz, FG and BG calibration
Figure 6-16 SFDR vs Input Frequency
GUID-C446D5C8-8AE2-4C37-AEFD-66CB7BBCDEA4-low.gif
DES_EN = 0, fS = 3200 MHz, FG calibration
Figure 6-18 HD2 and HD3 vs Input Frequency
GUID-920945F7-31D4-4B95-BF4F-6A5D0C2B70DA-low.gif
DES_EN = 0, fS = 3200 MHz, FG calibration, includes fS / 2 – fIN spur only
Figure 6-20 Worst Interleaving Spur vs Input Frequency
GUID-D4CD4246-177D-407A-A669-8CB761D24469-low.gif
DES_EN = 0, FG calibration, AIN = –1 dBFS
Figure 6-22 SNR vs Sampling Rate
GUID-A85F1CF0-1AD4-49F7-A8B1-67A429A81FB9-low.gif
DES_EN = 0, FG calibration, AIN = –1 dBFS
Figure 6-24 SINAD vs Sampling Rate
GUID-67594BC9-CF16-4853-BACC-915CDC7C122B-low.gif
DES_EN = 0, FG calibration, AIN = –1 dBFS
Figure 6-26 ENOB vs Sampling Rate
GUID-DE6C7414-230A-4835-8D8B-41E99D80C823-low.gif
DES_EN = 0, FG calibration, AIN = –1 dBFS
Figure 6-28 SFDR vs Sampling Rate
GUID-1B1DD728-D765-426E-BA27-F3FC4925C0EF-low.gif
DES_EN = 0, FG calibration, fS = 3200 MSPS
Figure 6-30 SNR vs Input Power
GUID-CB001F67-D9B9-49E7-BB21-E052AFFC2DDE-low.gif
DES_EN = 0, FG calibration, fS = 3200 MSPS
Figure 6-32 SFDR vs Input Power
GUID-748D53B8-FF29-4C88-875A-77A9D9A283DE-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, AIN = –1 dBFS
Figure 6-34 SNR vs Clock Amplitude
GUID-536ECB55-B393-444C-AE38-0AFC003FF53D-low.gif
DES_EN = 0, FG calibration, fS = 3200 MSPS, SNR = 57.2 dBFS, SFDR = 74 dBFS, ENOB = 9.1 bits
Figure 6-36 Single-Tone FFT at fIN = 347 MHz, AIN = –1 dBFS
GUID-1939FC17-0BEB-4CBF-AA5A-A957FE44CE6D-low.gif
DES_EN = 0, FG calibration, fS = 3200 MSPS, SNR = 55.6 dBFS, SFDR = 64 dBFS, ENOB = 8.6 bits
Figure 6-38 Single-Tone FFT at fIN = 2488 MHz, AIN = –1 dBFS
GUID-A1F469C1-0721-4900-BDF8-C58FADA3AA60-low.gif
DES_EN = 0, FG calibration, fS = 3200 MSPS, SNR = 56.9 dBFS, SFDR = 71 dBFS, ENOB = 9.1 bits
Figure 6-40 Single-Tone FFT at fIN = 2488 MHz, AIN = –7 dBFS
GUID-58B94C14-F3B5-4B18-AA62-DE9AED7E493F-low.gif
DES_EN = 0, FG calibration, fS = 3200 MSPS, SNR = 53.4 dBFS, SFDR = 57 dBFS, ENOB = 8.1 bits
Figure 6-42 Single-Tone FFT at fIN = 4997 MHz, AIN = –1 dBFS
GUID-A9045813-D77F-408F-8BB0-06E7088D079A-low.gif
DES_EN = 0, FG calibration, fS = 3200 MSPS, SNR = 50.6 dBFS, SFDR = 53 dBFS, ENOB = 7.5 bits
Figure 6-44 Single-Tone FFT at fIN = 8197 MHz, AIN = –1 dBFS
GUID-4901C57D-C447-43D7-AD81-FD2798676967-low.gif
DES_EN = 0, FG calibration, fS = 3200 MSPS, f1 = 342 MHz, f2 = 352 MHz, AIN = –7 dBFS per tone, SFDR = –77 dBFS, IMD3 = –87 dBFS, IMD2 = –77 dBFS
Figure 6-46 Two-Tone FFT at fIN = 347 MHz, AIN = –1 dBFS
GUID-BF18AC97-0C14-4BE2-B34E-6012E213CBA3-low.gif
DES_EN = 0, FG calibration, fS = 3200 MSPS, f1 = 2483 MHz, f2 = 2493 MHz, AIN = –7 dBFS per tone, SFDR = –71 dBFS, IMD3 = –71 dBFS, IMD2 = –75 dBFS
Figure 6-48 Two-Tone FFT at fIN = 2488 MHz, AIN = –1 dBFS
GUID-0464FEB7-2478-4B46-95FE-3BAE788534FC-low.gif
DES_EN = 0, FG calibration, fS = 3200 MSPS, f1 = 4992 MHz, f2 = 5002 MHz, AIN = –7 dBFS per tone, SFDR = –61 dBFS, IMD3 = –61 dBFS, IMD2 = –77 dBFS
Figure 6-50 Two-Tone FFT at fIN = 4997 MHz, AIN = –1 dBFS
GUID-EA0C6AD2-3D43-40AA-9B93-DEE15E032CD4-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, fIN = 247 MHz
Figure 6-52 DNL vs Code
GUID-E301D610-962A-4731-B397-7241D2E2942D-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, fIN = 2488 MHz, AIN = –1 dBFS
Figure 6-54 Performance vs Temperature
GUID-E134F6BE-7946-4CC5-89E2-AD5B5F3E4F63-low.gif
DES_EN = 0, fS = 3200 MSPS, fIN = 347 MHz, AIN = –1 dBFS
Figure 6-56 SNR vs Temperature and Calibration Mode
GUID-75454272-029D-4222-B2A4-2FD45A362DBB-low.gif
DES_EN = 0, fS = 3200 MSPS, fIN = 347 MHz, AIN = –1 dBFS
Figure 6-58 SINAD vs Temperature and Calibration Mode
GUID-60320CAD-A678-46E5-9691-D3775C401D3B-low.gif
DES_EN = 0, fS = 3200 MSPS, fIN = 347 MHz, AIN = –1 dBFS
Figure 6-60 ENOB vs Temperature and Calibration Mode
GUID-7D73F5EF-616E-4165-BA4D-8840E9D0F8F8-low.gif
DES_EN = 0, fS = 3200 MSPS, fIN = 347 MHz, AIN = –1 dBFS
Figure 6-62 SFDR vs Temperature and Calibration Mode
GUID-B7066FD4-380C-4B0C-AC12-10DB9D1AF669-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, fIN = 2488 MHz, AIN = –1 dBFS
Figure 6-64 Performance vs Supply Voltage
GUID-0DD8DF7C-E303-4C7D-AE44-A0006923F6ED-low.gif
DES_EN = 1, fIN = 2488 MHz, AIN = –1 dBFS
Figure 6-66 VA19 Supply Current vs Clock Rate
GUID-8ED49E27-55BF-48E7-A473-61E3A47FB6D4-low.gif
DES_EN = 1, fIN = 2488 MHz, AIN = –1 dBFS
Figure 6-68 VD11 Supply Current vs Clock Rate
GUID-517113F4-C8A5-4F7B-A9B2-08E78E307ECD-low.gif
DES_EN = 1, fIN = 2488 MHz, AIN = –1 dBFS, VLVDS = 1.1 V
Figure 6-70 VLVDS Supply Current vs Clock Rate
GUID-3DF806ED-EF21-4EB1-BDD3-71E4C7E8FEE8-low.gif
DES_EN = 1, fS = 6400 MSPS, fIN = 2488 MHz, AIN = –1 dBFS, VLVDS = 1.9 V
Figure 6-72 Power Consumption vs Temperature
GUID-92919ECB-B245-4C91-BD63-E296F11B2ECF-low.gif
DES_EN = 1, fS = 6400 MSPS, fIN = 3199.9 MHz
Figure 6-74 Background Calibration Core Transition (AC Signal)
GUID-AE8870AE-50C0-4B50-B08F-335F587B893A-low.gif
DES_EN = 1, fS = 6400 MSPS, DC input
Figure 6-76 Background Calibration Core Transition (DC Signal)
GUID-2509118A-1B93-4211-9EF7-B8424CDBC01E-low.gif
DES_EN = 1, fS = 6400 MHz, FG and BG calibration
Figure 6-11 SNR vs Input Frequency
GUID-F7C6AAE3-BB76-428E-B43D-D26A87AE31A0-low.gif
DES_EN = 1, fS = 6400 MHz, FG and BG calibration
Figure 6-13 SINAD vs Input Frequency
GUID-C9341CD7-28FF-4910-A365-F3AA65C5D9B5-low.gif
DES_EN = 1, fS = 6400 MHz, FG and BG calibration
Figure 6-15 ENOB vs Input Frequency
GUID-9275057F-46A5-47E5-98B0-66B209F69266-low.gif
DES_EN = 1, fS = 6400 MHz, FG and BG calibration
Figure 6-17 SFDR vs Input Frequency
GUID-ED844609-227D-432F-9AD8-01E8BE158BA9-low.gif
DES_EN = 1, fS = 6400 MHz, FG calibration
Figure 6-19 HD2 and HD3 vs Input Frequency
GUID-AFB9E1E1-01C1-4472-ACBD-3FADB5E08FA0-low.gif
DES_EN = 1, fS = 6400 MHz, FG calibration, includes fS / 2 – fIN and fS /4 ± fIN spurs only
Figure 6-21 Worst Interleaving Spur vs Input Frequency
GUID-EBDBE67C-D02A-4C20-9F54-8882C0EFCD00-low.gif
DES_EN = 1, FG calibration, AIN = –1 dBFS
Figure 6-23 SNR vs Sampling Rate
GUID-92E23A44-D0BD-48E9-9F65-EF562DE3B20E-low.gif
DES_EN = 1, FG calibration, AIN = –1 dBFS
Figure 6-25 SINAD vs Sampling Rate
GUID-15CB7907-CF31-4CAB-B5A2-6ACAF11C0A0B-low.gif
DES_EN = 1, FG calibration, AIN = –1 dBFS
Figure 6-27 ENOB vs Sampling Rate
GUID-A6BC5840-80F1-4B9F-BC0A-816EF570673A-low.gif
DES_EN = 1, FG calibration, AIN = –1 dBFS
Figure 6-29 SFDR vs Sampling Rate
GUID-985FBACA-30C8-480A-AE27-5AF351455A2D-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS
Figure 6-31 SNR vs Input Power
GUID-BE25482C-866F-4328-93A0-0C52A814243D-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS
Figure 6-33 SFDR vs Input Power
GUID-9BB6D678-EF07-463F-B1CB-A51A9E2AC600-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, AIN = –1 dBFS
Figure 6-35 SFDR vs Clock Amplitude
GUID-F5DB6989-999D-48B8-A7F4-7897C1C0EDA6-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, SNR = 57.2 dBFS, SFDR = 69 dBFS, ENOB = 9.1 bits
Figure 6-37 Single-Tone FFT at fIN = 347 MHz, AIN = –1 dBFS
GUID-042D7F3C-BF5B-4172-9E7E-AB4B870AEECB-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, SNR = 55.8 dBFS, SFDR = 58 dBFS, ENOB = 8.5 bits
Figure 6-39 Single-Tone FFT at fIN = 2488 MHz, AIN = –1 dBFS
GUID-4B9F35A5-EDD6-4B90-8C53-54FCD24B8491-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, SNR = 57.5 dBFS, SFDR = 65 dBFS, ENOB = 9.0 bits
Figure 6-41 Single-Tone FFT at fIN = 2488 MHz, AIN = –7 dBFS
GUID-94000CA9-BCC1-4F66-8443-3949FBF61579-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, SNR = 53.7 dBFS, SFDR = 58 dBFS, ENOB = 8.2 bits
Figure 6-43 Single-Tone FFT at fIN = 4997 MHz, AIN = –1 dBFS
GUID-1B99CF95-D34D-422B-B8BC-AAA48C9C7AE6-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, SNR = 50.8 dBFS, SFDR = 45 dBFS, ENOB = 6.9 bits
Figure 6-45 Single-Tone FFT at fIN = 8197 MHz, AIN = –1 dBFS
GUID-D5D52FC5-53A3-4E51-A6E9-5BAFC646C701-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, f1 = 342 MHz, f2 = 352 MHz, AIN = –7 dBFS per tone, SFDR = –73 dBFS, IMD3 = –81 dBFS, IMD2 = –88 dBFS
Figure 6-47 Two-Tone FFT at fIN = 347 MHz, AIN = –1 dBFS
GUID-B15CC641-2822-4364-9D94-6CE052BB87C6-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, f1 = 2483 MHz, f2 = 2493 MHz, AIN = –7 dBFS per tone, SFDR = –60 dBFS, IMD3 = –72 dBFS, IMD2 = –78 dBFS
Figure 6-49 Two-Tone FFT at fIN = 2488 MHz, AIN = –1 dBFS
GUID-E08334A3-9680-4C6A-AE0D-21E8983E9B3B-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, f1 = 4992 MHz, f2 = 5002 MHz, AIN = –7 dBFS per tone, SFDR = –60 dBFS, IMD3 = –62 dBFS, IMD2 = –78 dBFS
Figure 6-51 Two-Tone FFT at fIN = 4997 MHz, AIN = –1 dBFS
GUID-CDEF5F87-E7C0-44D2-A006-7C9BC0DC4EDC-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, fIN = 247 MHz
Figure 6-53 INL vs Code
GUID-DD57A3F8-7EF1-4DC2-909A-8DED21C2C6BC-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, fIN = 2488 MHz, AIN = –1 dBFS
Figure 6-55 Performance vs Temperature
GUID-9427DDA3-E662-417C-9241-18CCBC5A2F2C-low.gif
DES_EN = 1, fS = 6400 MSPS, fIN = 347 MHz, AIN = –1 dBFS
Figure 6-57 SNR vs Temperature and Calibration Mode
GUID-0B33A159-947A-48D1-9910-3B6AE4F97674-low.gif
DES_EN = 1, fS = 6400 MSPS, fIN = 347 MHz, AIN = –1 dBFS
Figure 6-59 SINAD vs Temperature and Calibration Mode
GUID-75DEEFC2-FE05-4FA0-A87B-5F0219E94AB5-low.gif
DES_EN = 1, fS = 6400 MSPS, fIN = 347 MHz, AIN = –1 dBFS
Figure 6-61 ENOB vs Temperature and Calibration Mode
GUID-FF9C09B1-60BE-4DD1-9131-491B7E419688-low.gif
DES_EN = 1, fS = 6400 MSPS, fIN = 347 MHz, AIN = –1 dBFS
Figure 6-63 SFDR vs Temperature and Calibration Mode
GUID-7471574C-0EF2-46F5-9A9E-5063A1C1DAE2-low.gif
DES_EN = 1, FG calibration, fS = 6400 MSPS, fIN = 2488 MHz, AIN = –1 dBFS
Figure 6-65 Performance vs Supply Voltage
GUID-C6CA0A3C-B884-428B-8A53-FE80C91C9A10-low.gif
DES_EN = 1, fIN = 2488 MHz, AIN = –1 dBFS
Figure 6-67 VA11 Supply Current vs Clock Rate
GUID-13E64B28-54BC-462B-9521-21B5CEC07EC9-low.gif
DES_EN = 1, fIN = 2488 MHz, AIN = –1 dBFS, VLVDS = 1.9 V
Figure 6-69 VLVDS Supply Current vs Clock Rate
GUID-B0258966-00CC-4B3D-A7B7-77F472773CDD-low.gif
DES_EN = 1, fIN = 2488 MHz, AIN = –1 dBFS, VLVDS = 1.9 V
Figure 6-71 Power Consumption vs Clock Rate
GUID-81B6B10B-F7C1-458A-BAF7-B3B30D708F7E-low.gif
Figure 6-73 Gain Response vs Input Frequency
GUID-8216BA28-397D-498F-A5C3-89A0F9BB61EB-low.gif
DES_EN = 1, fS = 6400 MSPS, fIN = 3199.9 MHz
Figure 6-75 Background Calibration Core Transition (AC Signal Zoomed)
GUID-A89DD57E-F16B-4716-AC1C-450612893BB1-low.gif
DES_EN = 1, fS = 6400 MSPS, DC input
Figure 6-77 Background Calibration Core Transition (DC Signal Zoomed)