Uif Electronics; Technical Specification; Uif Electrical Characteristics; Dc Characteristics - Nokia 9000i Service Manual

After Sales
Technical Documentation
Both flexes are made of flexible material. Flexible material is needed
because the hinge will be opened thousands of times and the signals
must be working all the time.

UIF Electronics

The following sections of circuitry are on the UIF module:
– CMT LCD Display Module
– CMT LCD voltage divider & temperature compensation circuit.
– CMT Keypad & CMT LCD illuminating circuits.
– CMT & Soft keypad matrix.
– Antenna impedance matching circuit.
– Hinge flex connector.
– PDALCD flex connector.

Technical Specification

UIF Electrical Characteristics

DC Characteristics

Table 1. Supply Voltages and Power Consumption
Pin / Conn. Line Symbol
2/X001 VL1
1/X001 VBATT
27/X001 LCDVCC
28/X001 LCDVEE
Amendment 1 04/97
Minimum Typical /
Nominal
4.65 4.8
1.5 mA
0.8 mA
5.3 7.2
40 mA
40 mA
3.3V
17V 22V
RAE/RAK–1N
Maximum Unit / Notes
4.95 V
LCD material B
LCD material D
(without tempera-
ture compensation)
8.4 V
Display illumination
Keypad illumination
PDALCD Logic
voltage
25V PDALCD LCD volt-
age
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UIF