Users Manual Part 1

SIM8260A_Hardware Design_V1.05
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Test conditions

The above current consumption data is measured using SIMCOM EVB.

The test current consumption data includes SIM8260A module, SIMCom WLAN module W82 and
Ethernet PHY RTL8125B, to be added in subsequent versions.
To decrease the voltage dropping, make sure that the capacitors of VBAT net must not less than 640uF.
The following figure shows the reference circuit of power supply for the VBAT.
Figure 6: Power supply reference circuit
Table 9: Definition of VBAT and GND pins
Pin name
Pin no.
Electrical
description
Description
Comment
VBAT_BB
V45,
V49,
U47
PI
V
MAX
=4.4V
V
TYP
=3.8V
V
MIN
=3.3V
Input power supply
for module’s BB part
VBAT_RF
Y49,
AC47,
AA47, W47,
AD45,
AB45, Y45
PI
V
MAX
=4.4V
V
TYP
=3.8V
V
MIN
=3.3V
Input power supply
for module’s RF part
GND
A7,B8,A11,B12,C15,A15,B16,C17,C19,D22,D24,D26,C27,A27,B28,D28,C31,C33,
C35,C37,D40,A41,B42,J5,AD7,AJ1,AK3,AM3,AN1,AN5,AP3,AR1,AR5,AT3,AT7,A
U1,AU5,AV3,AW1,R47,T49,U51,W51,AA51,AB49,AD49,AE47,AF45,AH45,AG47,A
J47,AL47,AN47,AR47,AU47,AV49,AW51,AV10,AV12,AV14,AV16,AV18,AV20,AV2
2,AV24,AV26,AV28,AV30,AV32,AV34,AV36,AV38,AV40,AV42,AW9,AW11,AW13,
AW15,AW23,AW25,AW27,AW29,AW31,AW33,AW35,AW37,AW39,AW41,AW43,A
Y6,AY8,AY12,AY18,AY20,AY22,AY24,AY26,AY28,AY30,AY32,AY34,AY36,AY38,A
Y40,AY42,AY44,AY46,BA5,BA17,BA21,BA23,BA27,BA31,BA35,BA39,BA43,BA45,