Nokia NSB-5 Series Technical Documentation Manual page 10

NSB-5
System Module
IB-
Pin NAME Function
pin
10 Yes XEAR Analog
audio out-
put (from
phone to
accessory)
Accessory
detection
(from
accessory
to phone)
Page 10
Table 3: System/IBI connector
Min Typ Max Unit
47
10
16 300
4.7 10
1.0
100
0.5
6.8
0 0.2
16 1500
2.8
47
Nokia Mobile Phones Ltd.
PAMS Technical Documentation
Description
Ω
Output AC impedance (ref GND)
resistor tol. is 5%
uF Series output capacitance
Ω
Load AC impedance to GND: Head-
set
kΩ Load AC impedance to SGND:
External accessory
V Max. output level. No load
p-p
Resistance to accessory ground (in
kΩ
accessory)
V DC voltage (ref. SNGD). External
accessory
kΩ Load DC resistance to SGND. Exter-
nal accessory
V DC voltage (ref SGND). Headset
with closed switch
Ω
Load DC resistance to SNGD. Head-
set with closed switch
V DC voltage (ref SGND). No acces-
sory or headset with open switch
kΩ Pull-up resistor to VBB in phone
Issue 1 03/01