Interfaces; Rf And Baseband Interfaces - Nokia RH-64 Service Manual

Nokia Customer Care
Signal From
XEARP HS/HF
XEARN EAR/
Amp.
INT Switch
HEADINT
VCHARIN Charger
GND

Interfaces

RF and baseband interfaces

Table 15 AC and DC Characteristics of BB4.0 LiteV2 RF-Base band Digital Signals
Signal From
name
TXP1 UPP
RFGenOut GenIO5
3
Page 8–12
To Min Nom
UEMC 100 mV
Lite diff
UEMC 0/2.7V
Lite
UEMC 11.1Vp
Lite eak
7.0 8.4
VRMS VRMS
To Para-meter
RF-IC 1
0
Load
Resistance
Load
Capacitance
Timing
Accuracy
Company Confidential
Copyright ©2005 Nokia. All Rights Reserved.
Max Condi-tion
Ana in
Dig in
16.9 Standard
Vpeak
7.9
VRMS
1.0
Apeak
9.2 Fast charger
VRMS
850 mA
GND
Input characteristics
Min Typ Max
1.38 1.88
0 0.4
10
20
¼
System module
Note
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
Function
Unit
V Depends of the
RF design
V
kW
pF
symbol
9243363 (Issue 1)
RH-64