CDCS502: Difference between Clock Generator & BAW

Hi Francis, 

We usually define a clock generator as any device that can generate multiple clock outputs. Some clock generators need an external reference (like CDCS502 or CDC6E6214), but some do not (like LMK3H0102). 

BAW (Bulk Acoustic Wave) is a resonator technology that generates a stable reference frequency. We use BAW in our LMK6D/P/H/C and LMK3H families. LMK6x is considered an oscillator since it only provides one output, and LMK3H is considered a clock generator since it has multiple outputs. Let me know if you have any other questions. 

Regards, 

Connor 

Hi Francis, 

1. That's correct, to be a bit more precise I would say that BAW is a replacement for passive crystals (xtal) or MEMS resonators that may be used internally in oscillators and clock generators. BAW, crystal, and MEMS are similar in that they behave like a passive resonator that requires some additional circuitry to oscillate continuously. Our LMK6x family is mainly suitable for replacing active oscillators (which may be crystal or MEMS based), but not passive crystals. The terminology can be a bit confusing but hopefully this makes sense.  

2. To replace SiT1602, I would recommend our CDC6C family of oscillators which will be released by the end of the year. LMK6C would also work as a replacement but it doesn't come in a 2.0 x 1.6 mm package size like the SiTime device. 

Regards, 

Connor