CXA1720Q Description
The CXA1720Q is an IC for use with floppy disk drives, and contains a Read circuit (with built-in filters), Write circuit, Erase circuit, and supply voltage detection circuit, all into a single chip.
CXA1720Q Key Features
- Single 5 V power supply
- Filter system can be switched among four modes: 1M/2M, and inner track/outer track. This allows for a significant reduct
- Filter characteristics can be customized
- Low pre-amplifier input conversion noise voltage of 2.0 nV/ √ Hz (typ.) keeps Read data output jitter to a minimum. The
- The monostable multivibrator No. 1 pulse width switching function for the time domain filter permits switching between 1
- Write current switching function permits switching of the Write current among four modes: 1M/2M and inner track/outer tr
- Supply voltage detection circuit prohibits error writing during power ON/OFF or abnormal voltage
- Power consumption is kept down to 115 mW (typ.) and this IC is suitable for use with battery-driven FDDs
- Built in Time constant capacitors for monostable multivibrator Nos. 1 and 2. (The pulse width for monostable multivibrat
- Power saving function reduces power consumption when the IC is not in use. When in power saving mode (5 mW typ.), only t