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98-08901C63-A
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Hardware Description
Figure 16. Hands-free Audio Connectivity
3.7.4
Analog Ground
For optimal audio performance, all audio circuits external to the c18 should be referenced to the Analog Ground (AGND) pin.
The connection between AGND and GND is implemented inside the c18 module.
Figure 17. GND to AGND Connectivity
Note
The maximum allowed AGND current is 0.2 A.
Customer Product
c18_Vcc
SPKR
MIC
P.A
Mute
Vdd
1uF
1uF
0.1uF
0.1uF
0.1uF
0.1uF
Audio_Out_ON/OFF
Audio In
4.7K
GND
GND
GND
ON/OFF
Momentary
Switch
c18_Vcc
100ohm
680ohm
2.8V
37K
AGND
AUXOP
AUXON
AUXIP
AUXIN
MSM5100
c18
Analog
Circuits
Logic
Circuits
PS
Digital
Ground
Digital
Ground
Analog
Ground
c18
Customer Side
Содержание c18
Страница 1: ...Developer s Guide Motorola c18 Cellular Engine Module Description 98 08901C63 A ...
Страница 8: ...viii 98 08901C63 A ...
Страница 20: ...Introduction 12 98 08901C63 A ...
Страница 46: ...Hardware Description 38 98 08901C63 A ...
Страница 56: ...Mechanical Description 48 98 08901C63 A Figure 22 c18a1 Bottom View Figure 23 c18a1 Side View ...
Страница 57: ...98 08901C63 A 49 Mechanical Description Figure 24 c18c Top View Figure 25 c18c Bottom View ...
Страница 60: ...Service Support 52 98 08901C63 A ...
Страница 62: ...Suggested Connectors 54 98 08901C63 A ...
Страница 78: ...Hardware Requirements for CDG2 and Field Testing 70 98 08901C63 A ...
Страница 82: ...Index 74 98 08901C63 O ...