SRC4190 Power Supply current

Alex Conway

Other Parts Discussed in Thread: SRC4190

Hi guys,

Looking at the datasheet of SRC4190, it has Idd dynamic specified as 66mA for fsin = fsout = 192kHz. Does this change for different sample rates, eg 48kHz in, 96kHz out, etc?

Thanks

Alex

over 14 years ago

0 Don Dapkus over 14 years ago

TI__Guru**** 189401 points

Hi, Alex,

I looked around, and didn't immediately find this data.

What is your concern?

-d2

0 Alex Conway over 14 years ago in reply to Don Dapkus

Prodigy 100 points

Hi Don,

My application is very unlikely to use 192kHz input or Output and I was wondering if the current draw reduced at lower sample rates, I have looked at other mftr SRCs and they have lower current at lower sample rates. I am calculating power budgets.

Alex

0 Alex Conway over 14 years ago in reply to Alex Conway

Prodigy 100 points

Will it help if I give a competitor's example which is tempting me away?

Analog Devices AD1895:

48kHz:48kHz - 20mA

96kHz:96kHz: - 26mA

192kHz:192kHz - 43mA

0 Don Dapkus over 14 years ago in reply to Alex Conway

TI__Guru**** 189401 points

Hi, Alex,

Let me see if we can generate this data for you next week.

-d2

0 Alex Conway over 14 years ago in reply to Don Dapkus

Prodigy 100 points

Hi Don,

I would have thought that kind of data would be on the datasheet, or fairly quickly to hand from the team who designed the IC.

Looking forward to the data anyway,

Alex

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SRC4190 Power Supply current