CC1120EMK-420-470: Solder R321 by mistake

Daniel Fang

Genius 11600 points

Part Number: CC1120EMK-420-470

Hi experts,

My customer already makes a mistake that solders 0 Ohm resistor on R321. They use 3.3V TCXO.

The product has been shipped out. Is there a potential risk? Thanks.

over 6 years ago

0 TER over 6 years ago

TI__Guru**** 317180 points

I assume R322 is mounted. If that is the case, DCPL_XOSC is connected to 3.3 V. DCPL_XOSC is a 1.8 V node meaning that in this part of the circuit transistors with max rating 2.0 V is used. Connecting 3.3 V to a 2 V transistor will damage the chip.

0 Daniel Fang over 6 years ago in reply to TER

TI__Genius 11600 points

Will strongly ask customer call back these products. Thanks.

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CC1120EMK-420-470: Solder R321 by mistake