Dc Connector; Headset Connector - Nokia NHM-7 series Service Manual

NHM–7
System Module & UI
Pin Signal
5 SCLK
6 VDDI (VIO)
7 VDD
(VFLASH1)
8 VOUT

DC connector

Pin Signal
2 VCHAR
1 CHGND

Headset connector

Pin Signal
5 XMICP
3 XMICN
4 XEARN
7 XEARP
5 HookInt
6 HeadInt
Page 18
Min Nom
0.8*VIO
0
250ns
110ns
110ns
1.72V 1.8V
2.72V 2.78V
Min Nom
7.0 V 8.4 V
RMS RMS
0
Min Nom
2.0 V 2.1 V
0.75V 0.8V
0.75V 0.8V
0V
0V
E Nokia Corporation
PAMS Technical Documentation
Max Condition
VIO Logic '1'
0.22*VIO Logic '0'
4.0MHz Max frequency
t
scyc
t
shw
t
slw
1.88V
2.86V
9V
Max Condition
9.2 V Fast char-
RMS
850 mA ger
Max Condition
1V G = 0dB
pp
100 mV G = 20dB
pp
2.25 V DC
1V G = 0 dB
pp
100 mV G = 20dB
pp
0.85V DC
1V AC
pp
0.85V DC
1V AC
pp
2.86V
(VFLASH1)
2.86V
(VANA)
Note
Serial clock in-
put
Clock cycle
Clock high
Clock low
Logic voltage
supply
Connected to
VIO
Voltage supply
Connected to
VFLASH1
Booster output,
C=1uF con-
nected to GND
Note
Charger posi-
tive input
Charger ground
Note
1kΩ to MIC2B
1kΩ to GND
Connected to
UEM AD–con-
verter
Accessory
detection
Issue 1 10/2001