SPRS989F December 2016 – December 2018 DRA74P , DRA75P
PRODUCTION DATA.
デバイスごとのパッケージ図は、PDF版データシートをご参照ください。
Three power net parameters derived from a PCB’s PDN dynamic analysis are the Loop Inductance (LL), Impedance (Z) and PCB Frequency of Interest (Fpcb).
PDN Analysis: | Static | Dynamic | EVM Decoupling Capacitor Scheme per Supply(6) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Supply | Max Reff(7)
[mΩ] |
Max Dec.
Cap. LL [nH] |
Max
Impedance(8) [mΩ] |
Frequency
of Interest [MHz] |
100 nF | 220 nF | 470 nF | 1μF | 2.2 μF | 4.7 μF | 10 μF | 22 μF |
vdd_mpu | 18 | 2 | 57 | 20 | 12 | 2 | 2 | 3 | 1 | 1 | 1 | |
vdd_dspeve | 22 | 2.5 | 54 | 20 | 8 | 1 | 1 | 2 | 1 | 1 | 1 | |
vdd | 32 | 2 | 87 | 50 | 6 | 1 | 1 | 1 | 1 | 1 | ||
vdd_gpu | 22 | 2.5 | 207 | 50 | 6 | 1 | 1 | 1 | 1 | 1 | ||
vdd_iva | 48 | 2 | 800 | 100 | 5 | 1 | 1 | |||||
vdds_ddr1 | 18 | 2.5 | 200 | 100 | 8 | 4 | 2 | 2 | 1 | |||
vdds_ddr2 | 18 | 2.5 | 200 | 100 | 8 | 4 | 2 | 2 | 1 | |||
cap_vbbldo_dspeve | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vbbldo_gpu | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vbbldo_iva | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vbbldo_mpu | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_core1 | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_core2 | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_core3 | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_core4 | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_core5 | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_dspeve1 | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_dspeve2 | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_gpu | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_iva | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_mpu1 | N/A | 6 | N/A | N/A | 1 | |||||||
cap_vddram_mpu2 | N/A | 6 | N/A | N/A | 1 |
NOTE
For power IC which can support more than 10 µF close to processor, a bulk capacitor of at least 22 µF is strongly recommended for VDD_MPU power domains.