After Sales
Technical Documentation
RAE/RAK–1N
UIF
Page 4– 9
Amendment 1 04/97
Table 2. DC characteristics of PDA Hinge–flex connector on LCDM module (continued)
NotesMaxi-
mum
Typi-
cal /
Nomi-
nal
Mini-
mum
Line SymbolPin /
Type
25 /
FP
0.4 V Output low
PDA LCD,
2.6 V Output high
Pulse
26 /
PDALCD
DISPON
0.4 V Output low
PDA Dis-
play on
2.6 V Output high
control
signal
31–29 /
UIF
KEYD(2:0)
0.4 V Output low Keymatrix
drive lines
2.6 V Output high Keymatrix
drive lines
33, 32 /
UIF
KEYS(1:0)
– 0.5
V
0.8 V Input low
Keymatrix
sense
2.0 V 4.1 V Input high
lines
AC Characteristics
Table 3. AC characteristics of RF connectors
Conn. Parameter Minimum Typical / Nomi-
nal
Maximum Unit / Notes
X035,
X040
Impedance 50 ohms
X035,
X040
Transmitter frequency
GSM
PCN
890
1710
915
1785
MHz
MHz
X035,
X040
Receiver frequency
GSM
PCN
935
1805
960
1880
MHz
MHz
X035,
X040
Max. output power 2W (33 dBm)
1W (30 dBm)
GSM
PCN
UIF External Signals and Connections
Table 4. Hinge flex connector (X001) signals
Signal Name Pin Signal description Note
VBATT 1 Battery voltage
VL1 2 CMT logic voltage
LCMUIF(3:0) 6–3 keypad row / display data
LCMUIF4 7 keypad row / Read/Write
for strobe for CMT LCD