ADN4600 Junction Temperature

Question What is the max Junction Temperature for the ADN4600 Crosspoint Switch? It is not included in the datasheet. Answer The Tj maximum specification is 125 degC for this process and package. This was an omission from the ADN4600 datasheet and we will include it on the next update of this datasheet. (The Tj max was included in later datasheets for other members of this product family such as ADN4605).

ADN4600: Reset Power on timing

Question What is the reset power on timing for the ADN4600? This is not mentionned in the datasheet specifications. Answer The attached figure (reset timing diagram) is from the ADN8102 data sheet, which is actually the same die as ADN4600, but fused to provide a different function. The spec covers how long to hold /RESET low, spec is a minimum of 10 ns, but the starting point for this time is after DVCC enters into the region between min and max values. There is no harm in holding this low for a longer period. The attached figure shows what the minimum time should be.

ADN4600 thermal characteristics

Question what are the package thermal resistances for junction-ambient, junction-case and junction-board for ADN4600 in 64 pin CSP? The ADN4600 datasheet does not give this information and the thermal datasheet on ADI website only provides thermal data up to a 48 pin CSP 7mmx 7mm package. Answer These are the specs for ADN4600 64 pin CSP that I received from our packaging engineer: Tja = 22 C/W Tjc = 1.1 C/W Tjb = 13 C/W