LSI Computer Systems LS7084
the LS7084, the timing of CLK and UP/DN requires that the counter interfacing with LS7084 counts on the rising edge of the CLK pulses. • TTL and CMOS compatible I/Os • +4.5V to +10.0V operation (VDD-VSS) • LS7083, LS7084 (DIP) LS7083-S, LS7084-S (SOIC) - See Figure 1 DESCRIPTION: The LS7083 and LS7084 are monolithic CMOS silicon gate quadrature clock converters.| Part No. | LS7084 |
|---|---|
| Datasheet | LS7084 Download |
| Manufacturer |  LSI Computer Systems |
| Description | QUADRATURE CLOCK CONVERTER |
| Buy | Stock & Price |
FEATURES
:● x1 and x4 mode selection
● Up to 16 MHz output clock frequency
● Programmable output clock pulse width
● On-chip filtering of inputs for optical or magnetic encoder applications. Quadrature clocks derived from optical or magnetic encoders, when applied to the A and B inputs of the LS7083/LS7084, are converted to strings of Up Clocks and Down Clocks (LS7083) or to a Clock and an Up/Down direction control (LS7084). These outputs can be interfaced directly with standard Up/Down counters for direction and position sensing of the encoder. INPUT/OUTPUT
DESCRIPTION
: RBIAS (Pin 1) Input for external component connection. A resistor connected between this input and V SS adjusts the output clock pulse width (Tow). For proper operation, the output clock pulse width must be less than or equal to the A,B pulse separation (TOW≤TPS). VDD (Pin 2) Supply Voltage positive terminal. VSS (Pin 3) Supply Voltage negative terminal. A (Pin 4) Quadrature Clock Input A. This input has a filter circuit to validate input logic level and eliminate encoder dither.
