User Guide

PAMS Technical Documentation System Module
NSB-5
Issue 1 03/01 Nokia Mobile Phones Ltd. Page 13
11 Ye s M BU S
FLASH_
CLK
Bidirec-
tional
serial bus
0
2.0
0
2.1
4.7
220
100
0.8
2.8
0.8
2.9
200
5
V
V
V
V
kΩ
kΩ
Ω
pF
µs
Input low voltage (ref GND)
Input high voltage (ref GND)
Output low voltage @ I
OL
<4mA
(ref GND)
Output high voltage @ I
OH
<100
µA (ref GND)
Pull-up resistor in phone
Pull-down resistor in accessory
Serial (EMI filtering) resistor in
phone
Cable capacitance
Rise/fall time @ 9600 bits/s
2,
14
- L_GND Logic and
charging
ground
(separated
from
phone GND
by EMI
compo-
nents)
0 1.0 A Ground current
4,5 - CHRG_
CTRL
Charger
control
(from
phone to
accessory)
0
1.7
1
32
20
30
0.8
2.9
37
99
V
V
Hz
%
kΩ
kΩ
Output low voltage @ I
OL
<20 µA
Output high voltage @ I
OH
<20 µA
PWM frequency
PWM duty cycle
Serial (EMI filtering) resistor in
phone
Pull-down resistor in phone
Table 3: System/IBI connector
Pin
IB-
pin
NAME Function Min Typ Max Unit Description