Pop-Porttm Connector - Nokia N72 Service Manual

Nokia Customer Care
TM
Pop-port connector
TM
Pop-Port connector provides a fully differential 4–wire stereo line-level output connection and fully
differential 2-wire mono line-level or microphone level input connection.
The handsfree driver in EM ASIC (N2200) is meant for the headset.
The output is driven in a fully differential mode. In the fully differential mode, the handsfree pin is the
negative output and the HFCM pin is the positive output. The gain of the handsfree driver in the differential
mode is 6 dB.
The earpiece and headset signals are multiplexed so that the outputs cannot be used simultaneously.
Pin #/ Signal
name description
1/ Charge V Charge
2/ GND Charge GND
3/ ACI ACI
4/ Vout DC out
9 / XMIC N Audio in
10 / XMIC P Audio in
11 / HEAR N Audio out
12 / HEAR P Audio out
Page 9 –32
Figure 108 External audio connector
Table 21 Audio connector pin assignments
Signal Spectral range
DC
-
1kbits/s
DC
300-8k
300-8k
20-20k
20-20k
COMPANY CONFIDENTIAL
Copyright © 2006 Nokia. All rights reserved.
Voltage/
Current levels nominal serial
impedance
0-9V/ 0.85A
0.85A 100mΩ (PWB+
conn.)
Digital 0 / 47Ω
2.5-2.78V
2.78V 70 mA 100mΩ (PWB+
conn.)
2.5V 90mA
1Vpp &
2.5-2.78VDC
1Vpp &
2.5-2.78VDC
1Vpp 10Ω
1Vpp 10Ω
System Module
Max or Notes
Insertion &
removal
detection
200mW
RM-180
Issue 1