External Signals And Connections; Battery Connector - Nokia RH-64 Service Manual

RH-64
System module

External signals and connections

Signal From
XMICP HS/HF Mic
XMICN
XEARP HS/HF
XEARN EAR/
Amp.
INT Switch
HEADINT
VCHARIN Charger
GND

Battery connector

Internal, user-changeable batteries. Semi-fixed. Types: Li-Ion, NiMH. Interface, 4 terminals (VBATT, GND, BSI,
BTEMP) Janette battery interface is used. The battery type and size are defined in the next chapter.
Signal From
GND Global
VBAT
9243363 (Issue 1)
Table 18 System connector
To Min Nom
UEMC 2/60mV
Lite diff
2/60mV
diff
UEMC 100 mV
Lite diff
UEMC 0/2.7V
Lite
UEMC 11.1Vp
Lite eak
7.0 8.4
VRMS VRMS
Table 19 Battery IF
To Min Nom
Batt (-)
Batt (+) 3.1
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Max Condi-tion
Analog
audio in
DC bias
2V2kohm
Ana in / 1k to
GND
Ana in
Dig in
16.9 Standard
Vpeak
7.9
VRMS
1.0
Apeak
9.2 Fast charger
VRMS
850 mA
GND
Max Condi-tion
5.1
Nokia Customer Care
Note
Headset Mic bias and audio
signal 2mV nominal. HF Mic
signal 60mV nominal.
Differential symmetric
input.
Accessory detection by
bias loading
Hook interrupt by heavy
bias loading
Quasi-differential DC-
coupled earpiece/HF
amplifier signal to
accessory. DC biased to
0.8V
HS interrupt from bottom
connector switch when
plug inserted.
Vch from Charger
Connector, max 20V
GND from/to Charger
connector
Note
Global GND
Battery Voltage
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