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TU-Darmstadt-APQ
Produces a PDH error-signal using MiniCircuits SYPD-1+ phase detector and LT1568 4th order low-pass filter. To be used with a AD9959 DDS board.
| Reference | Value | Description |
|---|---|---|
| U1 | LT3094xMSE | |
| U2 | LT3045xMSE | |
| U7 | ADA4898-2 | |
| U10 | LM7812_TO220 | |
| U11 | LM7908_TO220 | |
| U12 | LM7808_TO220 | |
| U13,U14,U17 | OPA695 | |
| U15 |
| U16 | LT1568 |
|---|
| C1,C16,C26,C44,C46,C50,C51 | 10n(C0G) |
|---|
| C2,C3,C10,C11 | 10u |
|---|
| C5,C8,C9,C27-C30,C34,C36,C38,C41-C43,C45,C47-C49 | 100n |
|---|
| C33,C35,C37,C39,C40 | 100u |
|---|
| D3,D4 | D_TVS |
|---|
| D6 | PMEG2010 |
|---|
| J1 | C64AC |
|---|
| J2 | DDS_Supply |
|---|
| J3 | PD_In |
|---|
| J4 | Ref_In_A |
|---|
| J5 | Error_Out |
|---|
| J9 | Mod_In |
|---|
| J10 | RF_Out |
|---|
| J11 | +5V GND -5V |
|---|
| J12 | +15V GND -15V |
|---|
| R1,R4 | 49.9k |
|---|
| R2,R20,R31,R31A1 | 200 |
|---|
| R6,R21,R22,R25,R27,R28,R32 | 499 |
|---|
| R11A1,R12A1,R21A1,R22A1 | 158 |
|---|
| R16,R19,R29 | 49.9 |
|---|
| R18 | DNF(200) |
|---|
| R24 | 20 |
|---|
| R30 | 4.7 |
|---|
| R32A1 | 62 |
|---|
| R33 | 100 |
|---|
| RV1 | 500 |
|---|