Texas Instruments TPS8804, Руководство пользователя

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Schematic and Bill of Materials
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24 SLVUBT6A – October 2019 – Revised May 2020
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Using the TPS8804EVM
5 Schematic and Bill of Materials
5.1 Schematic
(1) It is recommended to install a 470 k Ω resistor connecting PREF to VINT if the photo gain is set to 11x, 20x,
or 35x. The 470 k Ω resistor changes the PREF voltage to 70mV and prevents the gain stage output from
dropping below 50mV in worst-case conditions.
Figure 23. TPS8804EVM Schematic
5.2 Bill of Materials
Table 2. Bill of Materials
REF DES QTY VALUE DESCRIPTION SIZE PART NUMBER
PCB1 1 Printed Circuit Board TPS880x
C1, C11 2 4.7 µF Capacitor, ceramic, 4.7 µF, 25 V, ±10%, X7R, 0805 0805
C2012X7R1E475K1
25AB
C2, C12 2 0.1 µF Capacitor, ceramic, 0.1 µF, 25 V, ±5%, X7R, 0603 0603 06033C104JAT2A
C4, C13, C16,
C18
4 1 µF Capacitor, ceramic, 1 µF, 16 V, ±10%, X5R, 0603 0603
C0603C105K4PAC
TU
C5 1 1 µF Capacitor, ceramic, 1 µF, 16 V, ±10%, X7R, 0603 0603 EMK107B7105KA-T
C8, C9, C14,
C15
4 47 µF Capacitor, ceramic, 47 µF, 16 V, ±20%, X6S, 1210 1210
GRM32EC81C476M
E15L
C10 1 100 pF Capacitor, ceramic, 100 pF, 16 V, ±10%, X7R, 0402 0402 0402YC101KAT2A