The BU2880 series are linear digital-servo controllers that allow construction of a VCR servo system using one IC. The DRUM and CAPSTAN systems have digital filters, and the IC is compatible with VISS / VASS overwriting and wide-aspect operation.
The document describes the ROHM BU2880 series, which are linear digital-servo controllers allowing the construction of a VCR servo system using a single IC. The series includes digital filters for DRUM and CAPSTAN systems and is compatible with VISS/VASS overwriting and wide-aspect operation.
Key features include built-in CTL amplifiers with serial gain setting, 6.5H discrimination, and compatibility with 19um heads. The datasheet provides absolute maximum ratings, recommended operating conditions, pin descriptions, input/output circuit details, electrical characteristics, measurement circuits, characteristic curves, and external dimensions.
| Power supply voltage (Operating) | 4.5 to 5.5 V |
|---|---|
| Supply current | Typ. 38 mA |
| Operating temperature range | -15 to +70 °C |
| Storage temperature range | -55 to +125 °C |
| Power dissipation | 500 mW |
It is designed for video cassette recorders (VCRs).
Yes, it has digital filters in both the DRUM and CAPSTAN speed systems.
Yes, it supports VISS / VASS overwriting and INDEX detection functions for wide-aspect operation.