MB4107

'11111111111111111111111111111111111111111111111111111111111111111 FUJITSU MB 4107 11111111111111111111111111111111111111111111111111111111111111111 FLOPPY DISK VFO October 1964 Edition 1.0 The Fujitsu MB 4107 is a variable-frequency oscillator (VFO) Ie for use in floppy-disk interfaces_ It provides a complete data separation function, with a minimum of external parts and no adjustments, and can be used with a variety of disk controllers_ It locks onto the read signal from the disk drive, which normally has jitter due to rotation speed variations and peak shifting, and produces a stable read signal for the controller_ It also produces a window signal, which can be used to differentiate the clock and data pulses in the read signal. The MB 4107 includes functions for sync field detection, automatic loop filter gain switching, and address and index mark detection_ The analog VFO (PLL) circuitry allows a wide read margin for the data separator. Can be connected to both 8-inch...