94
AM3359, AM3358, AM3357, AM3356, AM3354, AM3352, AM3351
SPRS717J – OCTOBER 2011 – REVISED APRIL 2016
Product Folder Links:
AM3359 AM3358 AM3357 AM3356 AM3354 AM3352 AM3351
Specifications
Copyright © 2011–2016, Texas Instruments Incorporated
5.9
External Capacitors
To improve module performance, decoupling capacitors are required to suppress the switching noise
generated by high frequency and to stabilize the supply voltage. A decoupling capacitor is most effective
when it is close to the device, because this minimizes the inductance of the circuit board wiring and
interconnects.
5.9.1
Voltage Decoupling Capacitors
summarizes the Core voltage decoupling characteristics.
5.9.1.1
Core Voltage Decoupling Capacitors
To improve module performance, decoupling capacitors are required to suppress high-frequency switching
noise and to stabilize the supply voltage. A decoupling capacitor is most effective when located close to
the AM335x device, because this minimizes the inductance of the circuit board wiring and interconnects.
Table 5-13. Core Voltage Decoupling Characteristics
PARAMETER
TYP
UNIT
C
VDD_CORE
10.08
μ
F
C
VDD_MPU
10.05
μ
F
(1) The typical value corresponds to 1 cap of 10
μ
F and 8 caps of 10 nF.
(2) Not available on the ZCE package. VDD_MPU is merged with VDD_CORE on the ZCE package.
(3) The typical value corresponds to 1 cap of 10
μ
F and 5 caps of 10 nF.
5.9.1.2
IO and Analog Voltage Decoupling Capacitors
summarizes the power-supply decoupling capacitor recommendations.
Table 5-14. Power-Supply Decoupling Capacitor Characteristics
PARAMETER
TYP
UNIT
C
VDDA_ADC
10
nF
C
VDDA1P8V_USB0
10
nF
C
CVDDA3P3V_USB0
10
nF
C
VDDA1P8V_USB1
10
nF
C
VDDA3P3V_USB1
10
nF
C
VDDS
10.04
μ
F
C
VDDS_DDR
C
VDDS_OSC
10
nF
C
VDDS_PLL_DDR
10
nF
C
VDDS_PLL_CORE_LCD
10
nF
C
VDDS_SRAM_CORE_BG
10.01
μ
F
C
VDDS_SRAM_MPU_BB
10.01
μ
F
C
VDDS_PLL_MPU
10
nF
C
VDDS_RTC
10
nF
C
VDDSHV1
10.02
μ
F
C
VDDSHV2
10.02
μ
F
C
VDDSHV3
10.02
μ
F
C
VDDSHV4
10.02
μ
F
C
VDDSHV5
10.02
μ
F
C
VDDSHV6
10.06
μ
F