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3. TECHNICAL BRIEF
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3.6.4 Audio Section
1. Receive audio signal from microphone. This model uses differential configuration.
2. Send audio signal to speaker. This model uses differential configuration.
3. This section provides an audio codec with a digital-to-analog converter and an analogto-digital
converter, a ring tone volume controller, a microphone interface, and multiple analog input and
output channels.
4. It interconnects with external devices like main microphone, main receiver, and headset. The
descriptions of audio port used in This model are given bellow in detail.
<Up Link>
-AIN1P,AIN1N : Main microphone positive/negative terminal
-AIN2P,AIN2N : Headset microphone positive/negative terminal
-AIN3P,AIN3N : External Analog Input terminal
<Down Link>
-AOUT1P,AOUT1N : Main Speaker positive/negative terminal
-AOUT3P : Headset speaker terminal
Figure 3-14. AD6537B AUDIO SECTION
Содержание KG240
Страница 1: ...Date April 2006 Issue 1 0 Service Manual Model KG245 Service Manual KG245 ...
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Страница 81: ...4 TROUBLE SHOOTING 82 4 13 KEY backlight Trouble TEST POINT Figure 4 20 a KEY Backlight Trouble ...
Страница 90: ...5 DOWNLOAD AND CALIBRATION 91 5 2 Download Procedure 5 2 1 Computer Program file MultiGSM exe Click ...
Страница 92: ...5 DOWNLOAD AND CALIBRATION 93 5 2 3 Configuration Setting C GSMULTI Model MG210 dll ...
Страница 93: ...5 DOWNLOAD AND CALIBRATION 94 5 2 4 Press Start Button KG245 ...
Страница 94: ...5 DOWNLOAD AND CALIBRATION 95 5 2 5 After Start Button Which Stand by condition KG245 ...
Страница 95: ...5 DOWNLOAD AND CALIBRATION 96 5 2 6 SW downloading Condition KG245 ...
Страница 96: ...5 DOWNLOAD AND CALIBRATION 97 5 2 7 SW downloading END Condition KG245 ...
Страница 99: ...5 DOWNLOAD AND CALIBRATION 100 4 Click on CALIBRATION START button KG245 KG245 ...
Страница 100: ...5 DOWNLOAD AND CALIBRATION 101 6 BLOCK DIAGRAM ...
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Страница 110: ... 111 8 PCB LAYOUT ...
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Страница 112: ... 113 KG245 8 PCB LAYOUT ...
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Страница 121: ...10 STAND ALONE TEST 122 Figure 10 2 HW test setting Figure 10 3 Ramping profile ...
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