Shenzhen Coban Electronics Co. Ltd. CB900 Manuale Utente
Figure 15: Example of speaker implementation
4.10.3.
Earphone
The earphone amplifier provides a full differential signal on the MP3_R and MP3_L
terminals. The amplifier is capable of driving 100 mWrms into a 16 ohm load.
Pin Description
Electrical Characteristics
Pin
Signal Name
Signal I/O
Description
15
XMIC
I
Earphone input
18
MP3_R
O
Earphone amplifier output (+ve)
19
MP3_L
Earphone amplifier output (-ve)
Parameters
Conditions
Min
Type
Max
Unit
Power supply rejection
Mono Modes(GSM Voice)
90
100
-
dB
Maximum Output Swing at
EARP-EARN
Load = OPEN
-
-
4.1
Vpp