Cirrus-logic CS1601 Manual do Utilizador descarregar pdf

Cirrus Logic, Inc.

http://www.cirrus.com

CS1501 & CS1601: Frequently Asked Questions

DS927FAQ1

SEP’11

CONTACTING CIRRUS LOGIC SUPPORT

For a complete listing of direct Distributor, Sales, and Sales Representative contacts,

visit the Cirrus Logic website at http://www.cirrus.com

Question 1: What is the variance in the link voltage due to the reference current?

The reference current is specified as 129A at 25°C.

The reference current is defined by the internal DAC current (I

dac

). Production calibration is carried out, and

the reference can be considered accurate for design purposes.

Matrix lot variation testing showed the following part-to-part variation at room temperature:

Max = +0.51%; Min = -0.61%

Question 2: What is the reference current variation over temperature?

Over the entire temperature range of -40°C to 125°C, the total variation of I

ref

is 120A to136A, with the

major swings occurring at the extremes of temperature.

Over the more normal temperature range of 0°C to +70°C, the variation is limited to -1.0% to +1.5%.

Typical variations for V

link

are shown below:

ref

dac

) Variation over Temperature

Temperature (°C) Max(%) Mean(%) Min(%)

5 -0.17 -0.50 -1.00

25 +0.00 +0.00 +0.00

55 +1.25 +0.35 -0.07

85 +1.50 +0.24 -0.56

375

380

385

390

395

400

405

-5 5 15253545556575

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2 DS927FAQ1Contacting Cirrus Logic SupportFor all product questions and inquiries contact a Cirrus Logic Sales Representative. To find one nearest you

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Cirrus-logic CS1601 Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Hardware Cirrus-logic CS1601. Cirrus Logic CS1601 User Manual Manual do Utilizador

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