|
|
|
|
|
|
|
|
Pre Amplifier |
| |
|
Description |
| |
| •
The ALA-1765 series is specially
designed amplifier for BTS Application.
Gain of amplifier can be adjusted
by switch control in 15.5dB range
per 0.5dB step. Operating status
is monitored by alarm function. |
|
|
|
|
Function |
| |
• Gain
Control
• Cable Loss Compensation
For BTS
• Low Power Consumption
• Alarm Function.
•
Operating Range : -30 ~ +70 °C
•
ROHS Compliance |
| |
Specifications |
| |
| Parameters |
ALA-1765A |
ALA-1765B |
Remark |
|
Frequency Range
|
1750~1780[MHz] |
BW : 30[MHz] |
|
Gain
|
15.5±0.5[dBm] |
@Center Frequency |
|
Gain Flatness[max.]
|
±0.5 P-P[dB] |
@room temperature |
| Atten. |
Range |
15.5[dB] |
|
| Step |
0.5[dB] |
| Accuracy |
±(0.25+3[%]of Atten.Setting Max.)[dB] |
|
Noise Figure[max]
|
5.0[dB] |
|
|
OIP3[min.]
|
25.0[dBm] |
@maximum Gain |
|
P1dB
|
-2dBm(@5.5dB gain),Min
=>8dBm(@15.5dB gain),Min. |
|
|
Impedancde
|
50[Ω] |
|
|
In/Out VSWR[max]
|
1.5:1 |
|
|
DC Supply Voltage
|
20 ~ 28[V] |
|
|
Current Rating[max]
|
150[mA] |
27.0[V]type |
| Number of Output
|
Dual |
Single |
|
| Size |
70x28x84 |
40x28x84 |
|
| LED Indicator |
LED ON |
Green:Amp. Nomal |
Unit Mount Type |
| LED ON |
Red:Amp. FAil |
| LED OFF |
Power OFF |
| Alarm |
Normal |
GND(<300ohm) |
Open Collector Type |
| Annomal |
OPEN(>300ohm min.) |
| Operating Temp. |
|
-30 ~+70[°C] |
|
| Storage Temp. |
|
-35 ~ +85[°C] |
|
|
| |
|
|
|
|
