F1978 Datasheet | IDT

6-Bit, 75Ω Digital Step Attenuator 5MHz to 3GHz Description The F1978 Digital Step Attenuator (DSA) is a product in IDT’s Glitch-FreeTM DSA Family, which is optimized for the demanding requirements of CATV and satellite systems. It operates in the frequency range of 5MHz to 3000MHz. This device is offered in a pact 4mm  4mm, 20-pin Thin QFN package with a 75Ω impedance for ease of integration. The F1978 DSA has RF performance identical to the F1975 Digital Step Attenuator. The difference between the F1978 and F1975 is that the F1978 has an additional programming mode called Direct Serial Programming. Consult the “Programming” section of this datasheet or the...