Voltage Controlled Oscillator, Phase Detector: The 456 kHz oscillator and the frequency dividers are used as walsh function generators (suppression of 3rd order harmonics) for: 38 kHz for the stereo decoder 19 kHz inphase for phase detector and pilot cancellation 19 kHz quadrature for the phase detector. The phase detector locks the on chip 19 kHz signal to the pilot tone in the MPX signal at 90 deg phase.
| SYMBOL | PARAMETER | CONDITIONS | MIN | MAX | UNIT |
| VRRM | repetitive peak reverse voltage | | | 85 | V |
| VR | continuous reverse voltage | | | 75 | V |
| IF | continuous forward current | see Fig.2; note 1 | | 175 | mA |
| IFRM | repetitive peak forward current | | | 500 | mA |
| IFSM | non-repetitive peak forward current | square wave; Tj = 25 IC prior to surge; see Fig.4 t = 1 ccs t=l ms t=ls | | 4 1 0.5 | A A A |
| Ptot | total power dissipation | Tamb = 25 IC; note 1 | | 200 | mW |
| Tstg | storage temperature | | -65 | +150 | IC |
| Tj | junction temperature | | | 150 | IC |
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