SLASEA3D December   2016  – December 2023 DAC38RF80 , DAC38RF83 , DAC38RF84 , DAC38RF85 , DAC38RF90 , DAC38RF93

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    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 - Digital Specifications
    7. 6.7  Electrical Characteristics - AC Specifications
    8. 6.8  PLL/VCO Electrical Characteristics
    9. 6.9  Timing Requirements
    10. 6.10 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1  SerDes Inputs
      2. 7.3.2  SerDes Rate
      3. 7.3.3  SerDes PLL
      4. 7.3.4  SerDes Equalizer
      5. 7.3.5  JESD204B Descrambler
      6. 7.3.6  JESD204B Frame Assembly
      7. 7.3.7  SYNC Interface
      8. 7.3.8  Single or Dual Link Configuration
      9. 7.3.9  Multi-Device Synchronization
      10. 7.3.10 SYSREF Capture Circuit
      11. 7.3.11 SerDes Test Modes through Serial Programming
      12. 7.3.12 SerDes Test Modes through IEEE 1500 Programming
      13. 7.3.13 Error Counter
      14. 7.3.14 Eye Scan
      15. 7.3.15 JESD204B Pattern Test
      16. 7.3.16 Multiband DUC (multi-DUC)
        1. 7.3.16.1 Multi-DUC input
        2. 7.3.16.2 Interpolation Filters
        3. 7.3.16.3 JESD204B Modes, Interpolation and Clock phase Programming
        4. 7.3.16.4 Digital Quadrature Modulator
        5. 7.3.16.5 Low Power Coarse Resolution Mixing Modes
        6. 7.3.16.6 Inverse Sinc Filter
        7. 7.3.16.7 Summation Block for Dual DUC Modes
      17. 7.3.17 PA Protection Block
      18. 7.3.18 Gain Block
      19. 7.3.19 Output Summation
      20. 7.3.20 Output Delay
      21. 7.3.21 Polarity Inversion
      22. 7.3.22 Temperature Sensor
      23. 7.3.23 Alarm Monitoring
      24. 7.3.24 Differential Clock Inputs
      25. 7.3.25 CMOS Digital Inputs
      26. 7.3.26 DAC Fullscale Output Current
      27. 7.3.27 Current Steering DAC Architecture
      28. 7.3.28 DAC Transfer Function for DAC38RF83, 93, 85
      29. 7.3.29 DAC Transfer Function for DAC38RF80/90/84
    4. 7.4 Device Functional Modes
      1. 7.4.1 Clocking Modes
      2. 7.4.2 PLL Bypass Mode Programming
      3. 7.4.3 Internal PLL/VCO
      4. 7.4.4 CLKOUT
      5. 7.4.5 Serial Peripheral Interface (SPI)
        1. 7.4.5.1 NORMAL (RW)
        2. 7.4.5.2 WRITE_TO_CLEAR (W0C)
        3. 7.4.5.3 Writing to Reserved Bits
    5. 7.5 Register Maps
      1. 7.5.1  Chip Reset and Configuration Register (address = 0x00) [reset = 0x5803]
      2. 7.5.2  IO Configuration Register (address = 0x01) [reset = 0x1800]
      3. 7.5.3  Lane Single Detect Alarm Mask Register (address = 0x02) [reset = 0xFFFF]
      4. 7.5.4  Clock Alarms Mask Register (address = 0x03) [reset = 0xFFFF
      5. 7.5.5  SERDES Loss of Signal Detection Alarms Register (address = 0x04) [reset = 0x0000]
      6. 7.5.6  SYSREF Alignment Circuit Alarms Register (address = 0x05) [reset = variable]
      7. 7.5.7  Temperature Sensor and PLL Loop Voltage Register (address = 0x06) [reset = variable]
      8. 7.5.8  Page Set Register (address = 0x09) [reset = 0x0000]
      9. 7.5.9  SYSREF Align to r1 and r3 Count Register (address = 0x78) [reset = 0x0000]
      10. 7.5.10 SYSREF Phase Count 1 and 2 Register (address = 0x79) [reset = 0x0000]
      11. 7.5.11 SYSREF Phase Count 3 and 4 Register (address = 0x7A) [reset = 0x0000]
      12. 7.5.12 Vendor ID and Chip Version Register (address = 0x7F) [reset = 0x0009]
      13. 7.5.13 Multi-DUC Configuration (PAP, Interpolation) Register (address = 0x0A) [reset = 0x02B0]
      14. 7.5.14 Multi-DUC Configuration (Mixers) Register (address = 0x0C) [reset = 0x2402]
      15. 7.5.15 JESD FIFO Control Register (address = 0x0D)[reset = 0x8000]
      16. 7.5.16 Alarm Mask 1 Register (address = 0x0E) [reset = 0x00FF]
      17. 7.5.17 Alarm Mask 2 Register (address = 0x0F) [reset = 0xFFFF]
      18. 7.5.18 Alarm Mask 3 Register (address = 0x10) [reset = 0xFFFF]
      19. 7.5.19 Alarm Mask 4 Register (address = 0x11) [reset = 0xFFFF]
      20. 7.5.20 JESD Lane Skew Register (address = 0x12) [reset = 0x0000]
      21. 7.5.21 CMIX Configuration Register (address = 0x17) [reset = 0x0000]
      22. 7.5.22 Output Summation and Delay Register (address = 0x19) [reset = 0x0000]
      23. 7.5.23 NCO Phase Path AB Register (address = 0x1C) [reset = 0x0000]
      24. 7.5.24 NCO Phase Path CD Register (address = 0x1D) [reset = 0x0000]
      25. 7.5.25 NCO Frequency Path AB Register (address = 0x1E-0x20) [reset = 0x0000 0000 0000]
      26. 7.5.26 NCO Frequency Path CD Register (address = 0x21-0x23) [reset = 0x0000 0000 0000]
      27. 7.5.27 SYSREF Use for Clock Divider Register (address = 0x24) [reset = 0x0010]
      28. 7.5.28 Serdes Clock Control Register (address = 0x25) [reset = 0x7700]
      29. 7.5.29 Sync Source Control 1 Register (address = 0x27) [reset = 0x1144]
      30. 7.5.30 Sync Source Control 2 Register (address = 0x28) [reset = 0x0000]
      31. 7.5.31 PAP path AB Gain Attenuation Step Register (address = 0x29) [reset = 0x0000]
      32. 7.5.32 PAP path AB Wait Time Register (address = 0x2A) [reset = 0x0000]
      33. 7.5.33 PAP path CD Gain Attenuation Step Register (address = 0x2B) [reset = 0x0000]
      34. 7.5.34 PAP Path CD Wait Time Register (address = 0x2C) [reset = 0x0000]
      35. 7.5.35 PAP path AB Configuration Register (address = 0x2D) [reset = 0x0FFF]
      36. 7.5.36 PAP path CD Configuration Register (address = 0x2E) [reset = 0x0FFF]
      37. 7.5.37 DAC SPI Configuration Register (address = 0x2F) [reset = 0x0000]
      38. 7.5.38 DAC SPI Constant Register (address = 0x30) [reset = 0x0000]
      39. 7.5.39 Gain for path AB Register (address = 0x32) [reset = 0x0400]
      40. 7.5.40 Gain for path CD Register (address = 0x33) [reset = 0x0400]
      41. 7.5.41 JESD Error Counter Register (address = 0x41) [reset = 0x0000]
      42. 7.5.42 JESD ID 1 Register (address = 0x46) [reset = 0x0044]
      43. 7.5.43 JESD ID 2 Register (address = 0x47) [reset = 0x190A]
      44. 7.5.44 JESD ID 3 and Subclass Register (address = 0x48) [reset = 0x31C3]
      45. 7.5.45 JESD Lane Enable Register (address = 0x4A) [reset = 0x0003]
      46. 7.5.46 JESD RBD Buffer and Frame Octets Register (address = 0x4B) [reset = 0x1300]
      47. 7.5.47 JESD K and L Parameters Register (address = 0x4C) [reset = 0x1303]
      48. 7.5.48 JESD M and S Parameters Register (address = 0x4D) [reset = 0x0100]
      49. 7.5.49 JESD N, HD and SCR Parameters Register (address = 0x4E) [reset = 0x0F4F]
      50. 7.5.50 JESD Character Match and Other Register (address = 0x4F) [reset = 0x1CC1]
      51. 7.5.51 JESD Link Configuration Data Register (address = 0x50) [reset = 0x0000]
      52. 7.5.52 JESD Sync Request Register (address = 0x51) [reset = 0x00FF]
      53. 7.5.53 JESD Error Output Register (address = 0x52) [reset = 0x00FF]
      54. 7.5.54 JESD ILA Check 1 Register (address = 0x53) [reset = 0x0100]
      55. 7.5.55 JESD ILA Check 2 Register (address = 0x54) [reset = 0x8E60]
      56. 7.5.56 JESD SYSREF Mode Register (address = 0x5C) [reset = 0x0001]
      57. 7.5.57 JESD Crossbar Configuration 1 Register (address = 0x5F) [reset = 0x0123]
      58. 7.5.58 JESD Crossbar Configuration 2 Register (address = 0x60) [reset = 0x4567]
      59. 7.5.59 JESD Alarms for Lane 0 Register (address = 0x64) [reset = 0x0000]
      60. 7.5.60 JESD Alarms for Lane 1 Register (address = 0x65) [reset = 0x0000]
      61. 7.5.61 JESD Alarms for Lane 2 Register (address = 0x66) [reset = 0x0000]
      62. 7.5.62 JESD Alarms for Lane 3 Register (address = 0x67) [reset = 0x0000]
      63. 7.5.63 JESD Alarms for Lane 4 Register (address = 0x68) [reset = 0x0000]
      64. 7.5.64 JESD Alarms for Lane 5 Register (address = 0x69) [reset = 0x0000]
      65. 7.5.65 JESD Alarms for Lane 6 Register (address = 0x6A [reset = 0x0000]
      66. 7.5.66 JESD Alarms for Lane 7 Register (address = 0x6B) [reset = 0x0000]
      67. 7.5.67 SYSREF and PAP Alarms Register (address = 0x6C) [reset = 0x0000]
      68. 7.5.68 Clock Divider Alarms 1 Register (address = 0x6D) [reset = 0x0000]
      69. 7.5.69 Clock Configuration Register (address = 0x0A) [reset = 0xFC03]
      70. 7.5.70 Sleep Configuration Register (address = 0x0B) [reset = 0x0022]
      71. 7.5.71 Divided Output Clock Configuration Register (address = 0x0C) [reset = 0x2002]
      72. 7.5.72 DAC Fullscale Current Register (address = 0x0D) [reset = 0xF000]
      73. 7.5.73 Internal SYSREF Generator Register (address = 0x10) [reset = 0x0000]
      74. 7.5.74 Counter for Internal SYSREF Generator Register (address = 0x11) [reset = 0x0000]
      75. 7.5.75 SPI SYSREF for Internal SYSREF Generator Register (address = 0x12) [reset = 0x0000]
      76. 7.5.76 Digital Test Signals Register (address = 0x1B) [reset = 0x0000]
      77. 7.5.77 Sleep Pin Control Register (address = 0x23) [reset = 0xFFFF]
      78. 7.5.78 SYSREF Capture Circuit Control Register (address = 0x24) [reset = 0x1000]
      79. 7.5.79 Clock Input and PLL Configuration Register (address = 0x31) [reset = 0x0200]
      80. 7.5.80 PLL Configuration 1 Register (address = 0x32) [reset = 0x0308]
      81. 7.5.81 PLL Configuration 2 Register (address = 0x33) [reset = 0x4018]
      82. 7.5.82 LVDS Output Configuration Register (address = 0x34) [reset = 0x0000]
      83. 7.5.83 Fuse Farm clock divider Register (address = 0x35) [reset = 0x0018]
      84. 7.5.84 Serdes Clock Configuration Register (address = 0x3B) [reset = 0x1802]
      85. 7.5.85 Serdes PLL Configuration Register (address = 0x3C) [reset = 0x8228]
      86. 7.5.86 Serdes Configuration 1 Register (address = 0x3D) [reset = 0x0x0088]
      87. 7.5.87 Serdes Configuration 2 Register (address = 0x3E) [reset = 0x0x0909]
      88. 7.5.88 Serdes Polarity Control Register (address = 0x3F) [reset = 0x0000]
      89. 7.5.89 JESD204B SYNCB OUTPUT Register (address = 0x76) [reset = 0x0000]
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Start-up Sequence
    2. 8.2 Typical Application: Multi-band Radio Frequency Transmitter
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Calculating the JESD204B SerDes Rate
        2. 8.2.2.2 Calculating valid JESD204B SYSREF Frequency
      3. 8.2.3 Application Curves
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Power Supply Sequencing
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • AAV|144
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.7 Electrical Characteristics - AC Specifications

Typical values at TA = 25°C, full temperature range is TMIN = –40°C to TMAX = 85°C, external differential clock mode at
9 GSPS, 12x Interpolation, 0 dBFS, fOUT = 2.14 GHz, I(OUTFS) = 40 mA, nominal supplies, LMFSHd = 84111, unless otherwise noted.
PARAMETERTEST CONDITIONSDAC38RF83/93/85DAC38RF80/90/84UNIT
MINTYPMAXMINTYPMAX
Analog Output
fDACMaximum DAC sample rate99GSPS
AC Performance - CW
SFDRSpurious Free Dynamic Range 0 – fDAC/2fCLK = 6 GHz , fOUT = 501 MHz6370dBc
fCLK = 6 GHz , fOUT = 951 MHz6267
fCLK = 6 GHz , fOUT = 1851 MHz5859
fCLK = 6 GHz , fOUT = 2651 MHz5757
fCLK = 9 GHz , fOUT = 501 MHz6264
fCLK = 9 GHz , fOUT = 951 MHz6165
fCLK = 9 GHz , fOUT = 1851 MHz6162
fCLK = 9 GHz , fOUT = 2651 MHz5450
fCLK = 9 GHz , fOUT = 3651 MHz5151
SFDRSpurious Free Dynamic Range within 500 MHz fOUT ± 250 MHzfCLK = 6 GHz , fOUT = 501 MHz9794dBc
fCLK = 6 GHz , fOUT = 951 MHz9388
fCLK = 6 GHz , fOUT = 1851 MHz8887
fCLK = 6 GHz , fOUT = 2651 MHz7778
fCLK = 9 GHz , fOUT = 501 MHz9492
fCLK = 9 GHz , fOUT = 951 MHz9088
fCLK = 9 GHz , fOUT = 1851 MHz8585
fCLK = 9 GHz , fOUT = 2651 MHz8282
fCLK = 9 GHz , fOUT = 3651 MHz7978
SFDRSpurious Free Dynamic Range excluding HD2, HD3 and CMP2 0 – fDAC/2fCLK = 6 GHz , fOUT = 501 MHz7272dBc
fCLK = 6 GHz , fOUT = 951 MHz7175
fCLK = 6 GHz , fOUT = 1851 MHz7475
fCLK = 6 GHz , fOUT = 2651 MHz7171
fCLK = 9 GHz , fOUT = 501 MHz6964
fCLK = 9 GHz , fOUT = 951 MHz6966
fCLK = 9 GHz , fOUT = 1851 MHz7265
fCLK = 9 GHz , fOUT = 2651 MHz7164
fCLK = 9 GHz , fOUT = 3651 MHz6762
HD22nd Order HarmonicfCLK = 6 GHz , fOUT = 501 MHz7271dBc
fCLK = 6 GHz , fOUT = 951 MHz6568
fCLK = 6 GHz , fOUT = 1851 MHz5759
fCLK = 6 GHz , fOUT = 2651 MHz5757
fCLK = 9 GHz , fOUT = 501 MHz7171
fCLK = 9 GHz , fOUT = 951 MHz6567
fCLK = 9 GHz , fOUT = 1851 MHz6262
fCLK = 9 GHz , fOUT = 2651 MHz5449
fCLK = 9 GHz , fOUT = 3651 MHz5151
HD33rd Order HarmonicfCLK = 6 GHz , fOUT = 501 MHz6375dBc
fCLK = 6 GHz , fOUT = 951 MHz6272
fCLK = 6 GHz , fOUT = 1851 MHz7172
fCLK = 6 GHz , fOUT = 2651 MHz6970
fCLK = 9 GHz , fOUT = 501 MHz6274
fCLK = 9 GHz , fOUT = 951 MHz6173
fCLK = 9 GHz , fOUT = 1851 MHz6672
fCLK = 9 GHz , fOUT = 2651 MHz6569
fCLK = 9 GHz , fOUT = 3651 MHz6769
CMP2Fs/2 clock mixing product (Fs/2 – fOUT)fCLK = 6 GHz , fOUT = 501 MHz8579dBc
fCLK = 6 GHz , fOUT = 951 MHz8580
fCLK = 6 GHz , fOUT = 1851 MHz8276
fCLK = 6 GHz , fOUT = 2651 MHz7976
fCLK = 9 GHz , fOUT = 501 MHz7870
fCLK = 9 GHz , fOUT = 951 MHz7667
fCLK = 9 GHz , fOUT = 1851 MHz7367
fCLK = 9 GHz , fOUT = 2651 MHz7463
fCLK = 9 GHz , fOUT = 3651 MHz6859
CMP4+Fs/N (N = 4, 8, 16) clock mixing product (fOUT ± Fs/N)fCLK = 6 GHz , fOUT = 501 MHz9290dBc
fCLK = 6 GHz , fOUT = 951 MHz8787
fCLK = 6 GHz , fOUT = 1851 MHz8183
fCLK = 6 GHz , fOUT = 2651 MHz7876
fCLK = 9 GHz , fOUT = 501 MHz9591
fCLK = 9 GHz , fOUT = 951 MHz8988
fCLK = 9 GHz , fOUT = 1851 MHz8485
fCLK = 9 GHz , fOUT = 2651 MHz7981
fCLK = 9 GHz , fOUT = 3651 MHz7474
IMD3Third-order two-tone intermodulation distortionfCLK = 6 GHz , fOUT = 501 ± 5 MHz, –6 dBFS each tone8083dBc
fCLK = 6 GHz , fOUT = 951 ± 5 MHz, –6 dBFS each tone7679
fCLK = 6 GHz , fOUT = 1851 ± 5 MHz, –6 dBFS each tone7376
fCLK = 6 GHz , fOUT = 2651 ± 5 MHz, –6 dBFS each tone7275
fCLK = 9 GHz , fOUT = 501 ± 5 MHz, –6 dBFS each tone8084
fCLK = 9 GHz , fOUT = 951 ± 5 MHz, –6 dBFS each tone7580
fCLK = 9 GHz , fOUT = 1851 ± 5 MHz, –6 dBFS each tone7074
fCLK = 9 GHz , fOUT = 2651 ± 5 MHz, –6 dBFS each tone7073
fCLK = 9 GHz , fOUT = 3651 ± 5 MHz, –6 dBFS each tone6871
NSDNoise Spectral Density > 50 MHz offset
fCLK = 6 GHz , fOUT = 501 MHz–170–169dBFS/Hz
fCLK = 6 GHz , fOUT = 951 MHz–163–163
fCLK = 6 GHz , fOUT = 1851 MHz–157–155
fCLK = 6 GHz , fOUT = 2651 MHz–155–154
fCLK = 9 GHz , fOUT = 501 MHz–172–171
fCLK = 9 GHz , fOUT = 951 MHz–166–167
fCLK = 9 GHz , fOUT = 1851 MHz–157–156
fCLK = 9 GHz , fOUT = 2651 MHz–156–155
fCLK = 9 GHz , fOUT = 3651 MHz–153–153
fCLK = 6 GHz , fOUT = 501 MHz, –9 dBFS–170–169
fCLK = 6 GHz , fOUT = 951 MHz, –9 dBFS–164–163
fCLK = 6 GHz , fOUT = 1851 MHz, –9 dBFS–162–159
fCLK = 9 GHz , fOUT = 2651 MHz, –9 dBFS–162–162
fCLK = 9 GHz , fOUT = 3651 MHz, –9 dBFS–159–159
IsolationIsolation between DAC A and DAC B analog outputfOUT = 1856 MHz8260dBc
fOUT = 3105 MHz7355
AC Performance – Modulated Signals
ACPRWCDMA 1 carrier adjacent channel power ratiofCLK = 5898.24 MHz, fOUT = 950 MHz7678dBc
fCLK = 5898.24 MHz, fOUT = 2140 MHz7573
fCLK = 8847.36 MHz, fOUT = 950 MHz7677
fCLK = 8847.36 MHz, fOUT = 2140 MHz7373
Alt-ACLRWCDMA 1 carrier alternate channel ACPRfCLK = 5898.24 MHz, fOUT = 950 MHz8283dBc
fCLK = 5898.24 MHz, fOUT = 2140 MHz7777
fCLK = 8847.36 MHz, fOUT = 950 MHz8282
fCLK = 8847.36 MHz, fOUT = 2140 MHz7778
LTE2020 MHz LTE adjacent channel power ratiofCLK = 5898.24 MHz, fOUT = 800 MHz7374dBc
fCLK = 5898.24 MHz, fOUT = 2650 MHz7068
fCLK = 8847.36 MHz, fOUT = 800 MHz7374
fCLK = 8847.36 MHz, fOUT = 2650 MHz6968
fCLK = 8847.36 MHz, fOUT = 3700 MHz6366