The ISL43L220 is a committed dual single-pole/double-throw (SPDT) that consist of two normally open (NO) and two normally closed (NC) switches. This configuration can also be used as a dual 2-to-1 multiplexer. The ISL43L220 is pin compatible with the MAX4684 and MAX4685.
| Parameter | Vert. separate sync | Hor. separate sync | Composite sync | Sync on Video |
| Pola rity | Posi.Neg. | Posi.Neg | Posi.Neg | Neg |
| Amplitude (Sync) : Vs (Video) : Vv | 1.0 t0 5.OVP-P | 1.0 t0 5.OVP-P | 1.0 t0 5.OVP-P | 0.2 t0 0.6VP-P 0 t0 2.1VP-P |
| Vert. sync frequency range : fV | 40 t0 200Hz | | 40 t0 200Hz | 40 t0 200Hz |
| Vert. sync pulse width range : pwV | 8.Opts to Duty35% | | * 1HMin. t0 400Us | *1HMin |
| Hor. sync frequency range : fH | | 15k t0 200kHz | 15k t0 200kHz | 15k t0 200kHz |
| Hor. sync pulse width range : pwH | | 94ns to Duty35% | 94ns to Duty30% | Duty30% Max |
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