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resources:eval:ltc6952-ace-software-guide [23 Aug 2022 09:48] – size of the screenshots modified Emrecan Gidikresources:eval:ltc6952-ace-software-guide [23 Aug 2022 13:41] (current) – table edit Emrecan Gidik
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 The VTUNE and VCO SMAs can mate directly with the DC2664A VCO rider board. This option allows for a quick method to evaluate multiple VCOs. A DC2026 USB serial controller board is used for SPI communication with the LTC6952, controlled by the ACE™ software and LTC6952 Plugin. The VTUNE and VCO SMAs can mate directly with the DC2664A VCO rider board. This option allows for a quick method to evaluate multiple VCOs. A DC2026 USB serial controller board is used for SPI communication with the LTC6952, controlled by the ACE™ software and LTC6952 Plugin.
 {{ :resources:eval:user-guides:dc2609a-board-view.png?nolink |}} {{ :resources:eval:user-guides:dc2609a-board-view.png?nolink |}}
 +<note>Figure 1: DC2609A Board View and Connections</note>
 +
  
 ===== Getting Started ===== ===== Getting Started =====
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 The DC2026 has the ability to run Linduino code, refer to [[adi>en/design-center/evaluation-hardware-and-software/linduino.html?doc=DC2609A.pdf|Design Center]]. The DC2026 has the ability to run Linduino code, refer to [[adi>en/design-center/evaluation-hardware-and-software/linduino.html?doc=DC2609A.pdf|Design Center]].
 {{ :resources:eval:user-guides:dc2026-connector-location.png?nolink&600 |}} {{ :resources:eval:user-guides:dc2026-connector-location.png?nolink&600 |}}
 +<note>Figure 2: DC2026 Connector Locations </note>
  
 ==== ACE and Plugin Installation ==== ==== ACE and Plugin Installation ====
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   * Search for Board.LTC6952 and install plug-in   * Search for Board.LTC6952 and install plug-in
 {{ :resources:eval:user-guides:ace-plugin-search-screen.png?nolink |}} {{ :resources:eval:user-guides:ace-plugin-search-screen.png?nolink |}}
 +<note>Figure 3: ACE Plugin Search Screen</note>
  
 ==== Evaluation Board Set-Up ==== ==== Evaluation Board Set-Up ====
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   - Run the ACE application. Double click the LTC6952 icon that appears on the Attached Hardware tab when the DC2026 board is connected and attached to the board. If the icon does not appear, consider re-installing the LTC6952 plug-in or try refreshing the Attached hardware icon.   - Run the ACE application. Double click the LTC6952 icon that appears on the Attached Hardware tab when the DC2026 board is connected and attached to the board. If the icon does not appear, consider re-installing the LTC6952 plug-in or try refreshing the Attached hardware icon.
   - {{ :resources:eval:board.ltc6952-plugin-attached-hardware-screen.png?nolink |}}   - {{ :resources:eval:board.ltc6952-plugin-attached-hardware-screen.png?nolink |}}
 +<note>Figure 4: Attached Hardware Tab</note>
   - Connection is automatically established with DC2026. You can navigate to board and chip view.   - Connection is automatically established with DC2026. You can navigate to board and chip view.
   - Double click the LTC6952 Board Icon and the tab shown in Figure 5 appears.   - Double click the LTC6952 Board Icon and the tab shown in Figure 5 appears.
   - Double click the LTC6952 icon that appears on the LTC6952 Board tab to open the main control window shown in Figure 6   - Double click the LTC6952 icon that appears on the LTC6952 Board tab to open the main control window shown in Figure 6
 {{ :resources:eval:ltc6952-boardview-on-ace.png?nolink |}} {{ :resources:eval:ltc6952-boardview-on-ace.png?nolink |}}
 +<note>Figure 5: ACE Plugin DC2609A Board View </note>
 ==== General Software Features ==== ==== General Software Features ====
 In chip view, one can find various control features of LTC6952. One can read and control all registers which mentioned in the [[adi>LTC6952|LTC6952 datasheet]]. On board, VCO is a narrow band and must be operated in a 4 GHz region. Fpfd Fref and Fvco can be set by changing R Divider (RD) and N divider (ND) Values. In chip view, one can find various control features of LTC6952. One can read and control all registers which mentioned in the [[adi>LTC6952|LTC6952 datasheet]]. On board, VCO is a narrow band and must be operated in a 4 GHz region. Fpfd Fref and Fvco can be set by changing R Divider (RD) and N divider (ND) Values.
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 By clicking Proceed to Memory Map button or Memory Map Side-By-Side button, register values can be seen. By clicking Proceed to Memory Map button or Memory Map Side-By-Side button, register values can be seen.
 {{ :resources:eval:ltc6952-chipview-on-ace.png?nolink |}} {{ :resources:eval:ltc6952-chipview-on-ace.png?nolink |}}
 +<note>Figure 6: LTC6952 Chip View on ACE </note>
 +
 +
 +===== CML OUTPUTS, OUT[10:0] =====
 +
 +The DC2609A has 11 CML outputs. OUT[9:0] have matching trace lengths, which are optimized for skew measurements. OUT10’s trace lengths are longer than the other outputs traces due to the shape of the DC2609A.
 +
 +Six of these outputs are AC-coupled and brought out to SMAs (OUT9, OUT8, OUT5, OUT4, OUT1, and OUT0). To drive 50Ω impedance instruments connect OUTx+ to the instrument and OUTx– to a 50Ω termination, or vice versa.
 +
 +The remaining five outputs (OUT10, OUT7, OUT6, OUT3, and OUT2) are terminated with a 100Ω resistor onboard. To connect these outputs to a 50Ω instrument, remove the 100Ω termination, and install the appropriate SMAs and AC blocking capacitors.
 +
 +Refer to LTC6952 data sheet for differential termination options.
 +
 +===== Typical DC2609A Requirements and Characteristics=====
 +
 +^Parameter          ^Direction             ^Physical Location                ^Details                                                                                                                                                                                                                               ^
 +|9V-12V Power Supply|Input                 |J30 Banana Jack                  |Powers the onboard 8V VCO, the onboard 3.3V reference, and the LTC6952 5V VCP+ supply pins. Power down onboard reference (U2) by setting jumper JP2 to position 2-3. Power down onboard VCO (U9) by setting jumper JP3 to position 2-3.|
 +|4V-6V Power Supply |Input                 |J32 Banana Jack                  |Powers the LTC6952 3.3V supply pins (VOUT+, VREF+, VVCO+, and VD +). Option available to power supplies from a single LDO, or an LDO and an LTC Silent Switcher.                                                                        |
 +|GND                |Output|J33 Banana Jack  |Pair with J30 and J32                                                                                                                                                                                                                 |
 +|OUT9+; OUT9–       |Output|J3 and J4 SMA*   |CML, AC-Coupled, 800mVpk Differential                                                                                                                                                                                                 |
 +|OUT8+; OUT8–       |Output|J5 and J6 SMA*  |CML, AC-Coupled, 800mVpk Differential                                                                                                                                                                                                  |
 +|OUT5+; OUT5–       |Output|J19 and J20 SMA*|CML, AC-Coupled, 800mVpk Differential                                                                                                                                                                                                  |
 +|OUT4+; OUT4–       |Output|J17 and J18 SMA*|CML, AC-Coupled, 800mVpk Differential                                                                                                                                                                                                  |
 +|OUT1+; OUT1–       |Output|J11 and J12 SMA*|CML, AC-Coupled, 800mVpk Differential                                                                                                                                                                                                   |
 +|OUT0+; OUT0–       |Output|J9 and J10 SMA*|CML, AC-Coupled, 800mVpk Differential                                                                                                                                                                                                  |
 +|OUT10+; OUT10–     |Output (Not Connected)|J1 and J2 SMA (N.P<sup>1</sup>)  |Onboard Differential 100Ω termination                                                                                                                                                                                                 |
 +|OUT7+; OUT7–       |Output (Not Connected) |J7 and J8 SMA (N.P<sup>1</sup>)  |Onboard Differential 100Ω termination                                                                                                                                                                                                                                      |
 +|OUT6+; OUT6–       |Output (Not Connected) |J21 and J22 SMA (N.P<sup>1</sup>)| Onboard Differential 100Ω termination                                                                                                                                                                                                                                     |
 +|OUT3+; OUT3–       |Output (Not Connected) |J15 and J16 SMA (N.P<sup>1</sup>)|Onboard Differential 100Ω termination                                                                                                                                                                                                                                      |
 +|OUT2+; OUT2–       |Output (Not Connected) |J13 and J14 SMA (N.P<sup>1</sup>)| Onboard Differential 100Ω termination                                                                                                                                                                                                                                     |
 +|VCO+; VCO–         |Input (Not Connected) |J28 and J29 SMA                  |Default: Not Connected                                                                                                                                                                                                                |
 +|REF+;REF–          |Input                 |J24 and J25 SMA                  |                                                                                                                                                                                                                                      |
 +|EZS_SRQ+           |Input                 |J27 SMA /E1 Turret               |Default: Preferred Single-Ended Input                                                                                                                                                                                                 |
 +|EZS_SRQ–           |Input                 |J26 SMA /E3 Turret               |Default: Shorted to GND                                                                                                                                                                                                               |
 +|ISD                |Input                 |Test Point                       |3.3V(Default): Device Active, set by pull-up resistor GND: Shut Down Device                                                                                                                                                           |
 +|STAT               |Output                |JP1 Jumper                       |Red LED D1 illuminates when STAT pin in high state                                                                                                                                                                                    |
 +
 +*Any unused RF output must be powered down or terminated with 50Ω, or poor spurious performance may result.
  
 +<sup>1</sup>Not Populated
 ===== Troubleshooting ===== ===== Troubleshooting =====
 **If the green LEDs (D2, D3, or D4) do not illuminate:** **If the green LEDs (D2, D3, or D4) do not illuminate:**
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 To verify communication with the DC2609A, Go to the start page or system view page and click the button shown below. To verify communication with the DC2609A, Go to the start page or system view page and click the button shown below.
 {{ :resources:eval:ltc6952-verify-comm.png?nolink |}} {{ :resources:eval:ltc6952-verify-comm.png?nolink |}}
 +<note>Figure 7: Attached Hardware Tab on ACE</note>
  
 LEDs on the Serial Interface Boards don’t light up, then perform the following steps: LEDs on the Serial Interface Boards don’t light up, then perform the following steps:
resources/eval/ltc6952-ace-software-guide.1661240922.txt.gz · Last modified: 23 Aug 2022 09:48 by Emrecan Gidik

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