Need thermal details for AD1580BRTZ-R2 Required details: 1. Theta Jc 2. Theta Jb 3. Theta Ja 4. Max Operating temp 5. Max Junction case temp 6. Max Power dissipation
1. and 2. are not applicable for this package type. 3. Theta-ja for the…
If I use the AD1580 for reference voltage (Figure 10, pin 36 datasheet), what is the value of Vref in the formula?
IOR, IOB (mA) = 7989.6 × Vref / Rset
Vref is 1.235 V (internal reference voltage) or 1,225 V (provided by the AD1580)?
You cannot use a positive linear regulator in a negative supply.
The linear regulator would regulate with respect to the -5V and not with respect to GND.
you could use a shunt regulator or a zener instead. Like AD1580 for example
This might be repeated question.
What is ADI recommended chircuit about ADV7123/7125 VREF pin when internal reference used?
0.1uF decoulping to VAA was mentioned in the schematic of old datasheet and P18/24 of the latest datasheet
but 1uF decoulping…
The recommended approach when using either the ADV7123 or ADV7125 is to use an external reference (as per datasheet) e.g. AD1580.
Attached is a reference schematic - also covered in the datasheet.
Yes, I think the current is around some uA level only. This thread may be able to help you regarding the actual measurement. https://ez.analog.com/message/114854?commentID=114854#comment-114854
We also have some recommended voltage reference parts…
The schematic would be covered in datasheet,Please crosscheck. Refer section - Circuit description and operation in datasheet.
Refer here Design and Layout of a Video Graphics System for Reduced EMI (Rev. AN-333) at https://www.analog.com/en/products…
I use the schematics in Datasheet (Figure 10. Typical Connection Diagram) on my design except AD1580 zener.
I want to use adv7125 for composite video, so IOR and IOB terminated with 50ohm which is same impedance value with IOG. IOG is doubly…
Turning off PLL 1 fixed the problem. Is it a good idea to turn this off?
I'm only using DACs 1 to 3 so its hard to tell if its happening on DACs 4 to 6. It's definitely happening on DACs 1 and 2. DAC 3 is chroma and I haven't noticed it there…