Typical Applications
TL/H/5263–9
FIGURE 5. Typical Pulse-Squaring Circuit for
Automotive Tachometers.
TL/H/5263–11
TL/H/5263–10
FIGURE 6. Waveforms Encountered in Automotive
Tachometer Circuit.
FIGURE 7. Tachometer Charge Pump.
Voltage Driven Meter with Norton Amplifier Buffer
TL/H/5263–5
e
Deflection 54 (V
b
.7)R /R
(degrees)
IN
2
1
0 to 305 deflection is obtained with .7 to 5V input.
§
*Full scale deflection is adjusted by trimming R .
2
6