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| resources:eval:user-guides:stingray:userguide [20 Jul 2022 13:31] – [Support] updated x band platform link Sam Ringwood | resources:eval:user-guides:stingray:userguide [08 Nov 2022 18:14] – updated broken link in Evaluation Section Sam Ringwood |
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| GPIO PINS ARE HI-Z! SEE [[#configuring_the_ltc2992|CONFIGURING THE LTC2992]]** | GPIO PINS ARE HI-Z! SEE [[#configuring_the_ltc2992|CONFIGURING THE LTC2992]]** |
| </note> | </note> |
| **4.** Initialize the ADAR1000s to put the ADAR1000-EVAL1Z into a known safe state with the ADTR1107 PAs pinched off. See the [[#Recommended ADAR1000 Initialization Sequence]] section for a recommended set of SPI writes. | **4.** Initialize the ADAR1000s to put the ADAR1000-EVAL1Z into a known safe state with the ADTR1107 PAs pinched off. See the [[:resources:eval:user-guides:stingray:userguide#recommended_adar1000_initialization_sequences|Recommended ADAR1000 Initialization Sequences]] section for a recommended set of SPI writes. |
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| **5.** Now that the ADTR1107 PAs are pinched off, +5V can safely be applied. This is accomplished by pulsing the **+5V_CTRL** signal. Once the +5V rail is up, a green LED (D4) is lit showing that the board is fully powered up. | **5.** Now that the ADTR1107 PAs are pinched off, +5V can safely be applied. This is accomplished by pulsing the **+5V_CTRL** signal. Once the +5V rail is up, a green LED (D4) is lit showing that the board is fully powered up. |
