The 2SD412 is a complete two‑speed synchro/resolver to digital converter packaged in a single encapsulated module. It provides 20‑bit parallel binary output, DTL/TTL compatibility, and supports a variety of speed ratios such as 1:36, 1:16, 1:72 and 1:32.
Electrical specifications include a 400 Hz input/reference voltage of 11.8 V/26 V, +5 V at 600 mA and +15 V at 30 mA power supplies. Mechanical dimensions are 2.625" × 3.126" × 0.82" with PCB plug‑in mounting at 0.15" pin spacing. The unit meets commercial (0‑70 °C) and military (‑55‑105 °C) temperature ranges and complies with MIL‑STD‑883 standards.
| Output | 20‑Bit Parallel Binary |
|---|---|
| Accuracy | up to 0.001° |
| Power Supply (+5 V) | 600 mA |
| Power Supply (+15 V) | 30 mA |
| Input/Reference Voltage | 11.8 V / 26 V (400 Hz) |
| Supported Speed Ratios | 1:36, 1:16, 1:72, 1:32 |
| Size | 2.625" x 3.126" x 0.82" |
| Mounting | PCB plug‑in with pins at 0.15" spacing |
| Operating Temperature (Commercial) | 0 °C to 70 °C |
| Operating Temperature (Military) | -55 °C to 105 °C |
The converter provides an accuracy of up to 0.001°.
It supports speed ratios of 1:36, 1:16, 1:72 and 1:32, and other ratios can be specified.
The unit requires +5 V at 600 mA and +15 V at 30 mA.