Other Parts Discussed in Thread: TUSB1002
Hi Sir
May you pls help check TUSB1002A circuit?
Bogey
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Bogey
Please see the TUSB1002 schematic checklist for reference: http://www.ti.com/lit/an/slla398/slla398.pdf.
1. EN can be left unconnected or tied to a 100nF capacitor to GND.
2. Leave MODE pin unconnected for USB operation.
3. For DCBOOST, add a pull-up resistor of 400 kΩ to add +1 dB of DC gain, as specified in Table 3 of datasheet. Sampled after rising edge of EN (See Figure 2 in datasheet). Leave pin unconnected for no additional DC boost needed.
4. Please check the AC coupling capacitor capacitance and make sure they are in the USB spec.
Thanks
David
Robert
1. EN can be left unconnected or tied to a 100nF capacitor to GND.
2. Leave MODE pin unconnected for USB operation.
3. For DCBOOST, add a pull-up resistor of 400 kΩ to add +1 dB of DC gain, as specified in Table 3 of datasheet. Sampled after rising edge of EN (See Figure 2 in datasheet). Leave pin unconnected for no additional DC boost needed.
4, C1234 and C1233 change to 0.22uF
5. C1235 and C1236 change to 0.22uF
6. C1238 and C1239 change to 0.33uF.
Thanks
David
Dear David
Follow your suggestion, I modify circuit.
Please, help me review the attachement circuit, thanks.
Dear David
Follow your suggestion, I modify circuit.
Please, help me review the attachement circuit, thanks.
Robert
Please change C498 and C499 to 0.22uF, otherwise the schematic looks good.
Thanks
David