Fastrack M1306B User Guide
Technical Characteristics
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WM_PRJ_M13_UGD_001 -003 November 11, 2006
Table 19: Recommended characteristics for the speaker:
Feature Value
Type 10 mW, electro-magnetic
Impedance
Z = 32 to 50 Ω
Sensitivity 110 dB SPL min. (0 dB = 20 µPa)
Frequency response compatible with the GSM specifications
8.2.3 General Purpose Input/Output
Both GPIO4 and GPIO5 may be interfaced with a component that comply with 3 Volts
CMOS levels.
Table 20: Operating conditions
Parameter I/O type Min Max Condition
V
IL
CMOS -0.5 V 0.8 V
V
IH
CMOS 2.1 V 3.0V
V
OL
2X 0 0.2 V I
OL
= -2 mA
V
OH
2X 2.6 V 2.8 V I
OH
= 2 mA
Clamping diodes are present on I/O pads.
8.2.4 SIM Interface
Table 21: SIM card characteristics
SIM card 3 V only
8.2.5 RESET Signal
Table 22: Electrical characteristics
Parameter Min Max Unit
Input Impedance ( R ) 4.7
kΩ
Input Impedance ( C ) 10 nF
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