SIM802 Hardware Design
Figure Index
FIGURE 4: REFERENCE CIRCUIT OF THE SOURCE POWER SUPPLY INPUT.......................... 25
FIGURE 5: VBAT VOLTAGE DROP DURING TRANSMIT BURST ............................................... 25
FIGURE 13: RTC SUPPLY FROM NON-CHARGEABLE BATTERY .............................................. 40
FIGURE 16: PANASONIC EECEMOE204A CHARGE CHARACTERISTIC .................................. 41
FIGURE 24: SPEAKER INTERFACE WITH AMPLIFIER CONFIGURATIO.................................. 48
FIGURE 27: SIM INTERFACE REFERENCE CIRCUIT WITH 6 PINS SIM CARD ....................... 52
FIGURE 32: REFERENCE CIRCUIT FOR NETWORK STATUS LED ............................................ 57
C APPLICATION OF THE SRD INTERFACE............................................................ 58
SIM802_HD_V2.01
12.01.2010
6