TUSB1002AI schematic check and confirm,as below, thanks!
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Hi Malik
My customer would like to change below items,please review
1. Change U2826 power source from +V3.3A(standby power) to +V3.3S(normal power).
2. Check to stuff R3510 / R2962 220K ohm. (TUSB1002A datasheet recommended to stuff them)
3. Change EQ gain setting to ‘EQ SETTING#=9’
-> CHx_EQ1 = 0, CHx_EQ2 = F => EQ GAIN at 2.5Ghz / 5GHz = 7.3 / 11.9 (dB)
Hi Malik
would you help me to review the schematic and feed back your suggest,thanks!
Hi,
Sorry for the delay. Yes, you can send schematic over E2E DM and I will review.
Hi Malik
sending the schematic to you again,but i can not upload the pdf file,i just can capture the drawing to you.please help me to check. thanks
Hi,
I am still unable to to see the image posted. I recommend using E2E DM if possible.
Hi Malik
would you tell me your email?and I send the schematic to your email directly,thanks!
Hi,
I would like to keep communication through E2E for tracking purposes. Please accept my friend request so you can send the schematic for review.
TUSB1002AI schematic check and confirm.PDF
Hi Malik
The schematic upload successful,please review it ,thanks!
Hi
Schematic looks good, only one comment. TX1/2 should be AC coupled with 220nF and RX1/2 should be AC coupled with 330 nF. This is highly recommended when AC coupling a redriver to USB-C connector.
Hi Malik
Hi,
1. For Type-A connector, please refer to Figure 18. Host Implementation Schematic in datasheet. AC cap values in this figure should be followed. RX (CONN -> TUSB1002A) 330 nF AC cap is optional but highly recommended.
2. These resistor are allowed but are optional. These resistors allow for AC coupling caps to discharge within 250 ms after USB device is removed from the USB connector.
Hi,
Could you use a program like USBView to confirm the Bus speed that was negotiated? Please post a screenshot if possible.