User's Manual

Date: 2010/02/04
Version: 1.0
Status: Released
19/22 ACM8068 HW Application Manual V1.0 ©Copyright 2010, AMOD Technology
6. Electrical & Environmental Characteristics
Table 7: MIC 1 audio input electrical requirements
Parameter Typical Value
Maximum input level (MIC+–MIC-) 32.5mVrms
Differential input resistance (MICI+–MICI-)
220 KΩ
MIC Skew voltage
1.9~2.1V
2.0~2.2V
Table 8: MIC1 audio output electrical information
Parameter Testing condition MIN TYP MAX
Resistance (MIC+–MIC-)
4VPP Output
16Ω
- -
3V 1KHz
<1Ω
- -
Table 9: EAR 1 audio output electrical information
Parameter Testing condition MIN TYP MAX
EAR+ or EAR- maximum capacitance
diff i l
Differentiate
4VPP
- - 1%
EAR+ or EAR- maximum output
16Ω 5%
3.1VPP - 43.92VPP
4Ω 5%
1.2VPP - 1.5VPP
Table 10: EAR2 audio output electrical information
Parameter Testing condition MIN TYP MAX
EAR+ or EAR- capacitance differential
Differential 4VPP
- - 1%
EAR+ or EAR- maximum output
16Ω 5%
3.1VPP - 43.92VPP
4Ω 5%
1.2VPP - 1.5VPP
Table 11: Input power requirement
Parameter Min Typ Max Unit
VBat+ 3.4 4.0 4.5 V
Table 12: Operation current requirement
Operation mode Min TYP Max Unit
Standby mode - - 2 mA
Talking mode
- 250 - mA
GPRS data transmission - 350(GPRS4+1) - mA
Power off mode - 100 µA