Texas Instruments CC400DK, User Manual, Page: 22 / 22

CC400DK Development kit (rev. 1.5) 2002-09-17 Page 22 of 22
Example: If C61
TX
= 12pF and C61
RX
= 15pF the bits F5:F3 = 010.
2) If the optimum value of C61 found in TX mode is larger than C61 found in RX
mode:
Set bit F2 to 1 and increase bits F5 to F3 by an amount following the formula below
and update the device.
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛ −
=
pF
C C
round F F
RX TX
25 . 1
61 61
3 : 5
Choose the value of C61 that you got from the RX tuning (C61
RX
).
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printing. However, Chipcon AS reserves the right to make changes to this product without
notice. Chipcon AS does not assume any responsibility for the use of the described product.
Please refer to Chipcon’s web site for the latest update.
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®
is a registered trademark of Chipcon AS. SmartRF
®
is Chipcon's RF technology
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®
Chipcon
develops standard component RF-circuits as well as full custom ASICs based on customers'
requirements.