Wavecom FASTRACK M1306B User Manual

Fastrack M1306B User Guide
Technical Characteristics
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WM_PRJ_M13_UGD_001 -003 November 11, 2006
8.2.2 Audio Interface
The audio interface is available through the Sub HD 15-pin connector.
Table 16: Audio parameters caracteristics
Audio parameters Min Typ Max Unit Comments
Microphone input current @2 V/2 kΩ
0.5 mA
Absolute microphone input voltage 100 mVpp AC voltage
Speaker output current 150 Ω //1 nF
16 mA
Absolute speaker impedance 32 50
Ω
Impedance of the speaker amplifier
output in differential mode
1
Ω
+/-10 %
Table 17: Microphone inputs internal audio filter characteristics
Frequency Gain
0-150 Hz < -22 dB
150-180 Hz < -11 dB
180-200 Hz < -3 dB
200-3700 Hz 0 dB
>4000 Hz < -60 dB
Table 18: Recommended characteristics for the microphone:
Feature Value
Type Electret 2 V / 0.5 mA
Impedance
Z = 2 kΩ
Sensitivity -40 dB to –50 dB
SNR > 50 dB
Frequency response compatible with the GSM specifications

Wavecom FASTRACK M1306B Specifications

General

Brand	Wavecom
Model	FASTRACK M1306B
Category	Computer Hardware
Language	English