LDCBS1X2
Technical Product Data
Features
• Excellent Gain Flatness
|L1 – L2| < 0.5dB,
• Extremely Flat Group Delay
Less that 1ns variation
• Phase Matched Outputs
Phase (J1 – J2) < 1.0o
Description
The LDCBS1X2 GPS Splitter is a one input, two output device based on the Wilkinson splitter design. The frequency response covers the GPS L1 & L2 bands with excellent gain flatness. In the normal configuration, one of the splitter RF outputs (J1) passes DC from the connected GPS receiver through the splitter to the antenna. The other RF output (J2) is DC loaded with a 200Ω resistor to block the DC voltage and to simulate the antenna current draw to prevent false antenna fault detection.
Electrical Specifications, TA = 250C
Parameter
Conditions
Min
Typ
Max
Units
Freq. Range
Ant – J1, J2 - 50Ω ; Ant – J2, J1 - 50Ω
1.1
1.7
GHz
Input/Output
Impedance
Ant, J1, J2
50
Ω
Input SWR
All ports - 50Ω
1.5:1
-
Output SWR
All ports - 50Ω
1.5:1
-
Insertion Loss
Ant – J1, J2 - 50Ω ; Ant – J2, J1 - 50Ω
-5.0
-5.5
-6.0
dB
Gain Flatness
| L1 – L2 | ; Ant – J1, J2 - 50Ω ; Ant – J2, J1 - 50Ω
0.5
dB
Amplitude Balance
| J1 – J2 | ; Ant – J1, J2 - 50Ω ; Ant – J2, J1 - 50Ω
0.5
dB
Phase Balance
Phase (J1 – J2) ; Ant – J1, J2 - 50Ω ; Ant – J2, J1 - 50Ω
1.0
deg
Isolation
J1 – J2, Ant - 50Ω
19
30
dB
Group delay
Flatness
τd,max - τd,min : Ant – J1, J2 - 50Ω ; Ant – J2, J1 - 50Ω
1
ns
Available Options
Network Power Supply
Source Voltage Options
VOLTAGE INPUT
STYLE
110VAC
Transformer (Wall Mount)
220 VAC
Transformer (Wall Mount)
240 VAC (United Kingdom)
Transformer (Wall Mount)
Customer Supplied DC 9-32 VDC
Military Style Connector
Output Voltage Options (1)
DC VOLTAGE OUT
MAX CURRENT OUT FOR CORRESPONDING Vout(2)
5 V
120mA
7.5V
140mA
9V
150mA
12V
180mA
15V
220mA
Custom
TDB
Pass/Block DC Options
Pass DC(1)
All Ports Pass DC
DC Blocked (1)
J2 is DC blocked, Pass DC from J1 to ANT.
RF Connector Options
Connector Options
CONNECTOR STYLE
CHARGE
Type N
NC
Type SMA
NC
Type TNC
NC
Type BNC
NC
(1) With Network Option, any RF port (input or output) can be DC blocked or can pass the network DC
voltage.
(2) TA = +50oC. Assuming Source of 110V or 220V Wall Mount Transformer. In general, maximum output current can be determined by:
Iout ≤ 2.9 / (VsourceDC – Vout) A
Part Number
N L DCB S1X2- S / 5 / 110
Network Option:
N = Network Option; Blank = No Network
DC Options:
DCB = DC Blocked; PDC = Pass DC Connector Options:
N = N type; S = SMA; T = TNC; B = BNC
DC Output Voltage:
3.3, 5, 7.5, 9, 12, 15, CXX (Custom: “XX” denotes desired V) Source Voltage:
110 -Transformer, 220 – Transformer, 240 – Transformer, MC – Military Conn. (User supplies
DC Voltage)
Performance
Frequency Response: Ant. To J1, J2 (Typical, type N connector):
Input SWR: Ant. J1, J2 -50Ω (Typical)
Mechanical
Dimensions: Height: 1.3”
Length (not including connectors) Body: 2.5”
Base Plate: 3.25”
Width (not including connectors): 2.5” Weight: 10.2 oz. (295 grams)
Operating Temp. Range: -40o to + 75oC
