User's Manual

Date: 2010/02/04
Version: 1.0
Status: Released
4/22 ACM8068 HW Application Manual V1.0 ©Copyright 2010, AMOD Technology
List of Tables
Table 1: ACM8068 key feature list ................................................................................ 5
Table 2: UART Data configuration .............................................................................. 10
Table 3: UART0 pin out description ............................................................................ 10
Table 4: UART1 pin out connector .............................................................................. 10
Table 5: Electrical characteristics ................................................................................ 10
Table 6: SIM connector pin out.................................................................................... 14
Table 7: MIC 1 audio input electrical requirements .................................................... 19
Table 8: MIC1 audio output electrical information ..................................................... 19
Table 9: EAR 1 audio output electrical information .................................................... 19
Table 10: EAR2 audio output electrical information ................................................... 19
Table 11: Input power requirement .............................................................................. 19
Table 12: Operation current requirement ..................................................................... 19
List of Figures
Figure 1: ACM8068 system function block diagram ..................................................... 6
Figure 2: VBAT voltage drop ......................................................................................... 7
Figure 3: Voltage drop versus distance .......................................................................... 8
Figure 4: Power supply reference circuit ....................................................................... 9
Figure 5: UART reference circuit design ..................................................................... 11
Figure 6: Audio track design ........................................................................................ 12
Figure 7: Reference circuit for microphone inputs ...................................................... 12
Figure 8: Reference circuit for SIM interface .............................................................. 13
Figure 9: SIM connector layout reference ................................................................... 14
Figure 10: RF Interface Design .................................................................................... 15
Figure 11: PIN 5 for system ready indication .............................................................. 16
Figure 12: PIN 13 for network ready indication .......................................................... 16
Figure 13: Before Power-In, ONKEY has been in the “Low” mode ........................... 17
Figure 14: Before Power-In, ONKEY is not in “Low” mode ...................................... 17
Figure 15: GSM Sleep Process .................................................................................... 18
Figure 16: 48 pin SMD pad ......................................................................................... 22