Nokia Loopset LPS-3, Техническая документация инструкция

Страница: 11 / 14

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Loopset LPS-3
PAMS Technical Documentation
Page 11
Nokia Mobile Phones Ltd.
Issue 1 12/99
Plug and X100 connector signals
Plug
/
Jack
Pin
in
x100
Name Function Min Typ Ma
x
Unit Description
1 1 XMicP
Loopset microphone in
1.6 k
W
Loopset source AC impedance ref 1kHz
Loopset microphone in-
put
(from accessory to
400
m
A Bias current
(from accessory to
phone)
200 mV-
p–p
Maximum signal level
Loopset detection
(from accessory to
2,4 2.8
6
V No Loopset (ref. XMicN).
(from accessory to
phone)
1.1 2.2
3
V Loopset connected (ref. XMicN). Mic bias
ON
Ead /
hookint
mbus
Ext accessory detection
Bias OFF 0
0.3
0.1 1.0
0.3
5
V Loopset connected (ref. GND).
Ead /
Hookint
mbus
Button closed
DCT3.n
Mic bias ON DCT4 0.7
0
1.0
0.8
0
1.2
V Loopset connected (ref. GND).
3 2 XMicN Micr signal
10 nF Series output capacitance
2 3 XEarN EAR –Signal
(from phone to acces-
47
W
Output AC impedance ref 1kHz
(from hone to acces
sory)
10 nF Series output capacitance
150 300 450
W
Load AC impedance ref 1kHz
2.0 Vpp Max. input level. No load
4 4 XEarP Ear + signals