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