Motor driver ICs FG system speed servo controller BA6301 / BA6301F / BA6321 The BA6301, BA6301F, and BA6321 are single package servo control ICs suitable for controlling the speed of VCR motors. The ICs contain an F / V conversion section for speed control, a hysteresis amplifier section for waveform shaping, and an MIX amplifier section for speed / phase control output. They are compatible with either phase lagging or phase leading servo by setting the MIX system according to the phase servo control and MDA. They provide stable and efficient operation with either 5, 9, or 12V supply voltage. Motor speed can be controlled precisely at different levels with an FG program counter. Applications Speed control of capstan motors, drum head motors, reel motors, cassette players, and record players Features 1) Motor speed can be controlled by an FG program counter. 2) S / H type F / V converter allows servo control of various FG frequencies (BA6301 / F or BA6321 is used for fC greater or less than 600Hz, respectively) Block diagram 746 3) 4) 5) 6) Quick and precise motor starting. Low current dissipation. Wide range of operating voltage. Limited number of external components. Motor driver ICs BA6301 / BA6301F / BA6321 FInternal circuit configuration FAbsolute maximum ratings (Ta = 25_C) FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC=9V) 747 Motor driver ICs Application example Electrical characteristic curves 748 BA6301 / BA6301F / BA6321 Motor driver ICs BA6301 / BA6301F / BA6321 External dimensions (Units: mm) 749