SL2150LH2S ZARLINK [Zarlink Semiconductor Inc], SL2150LH2S Datasheet - Page 13

• Manufacturer Part Number: SL2150LH2S
• Description: Front End Power Splitter with AGC
• Manufacturer: ZARLINK [Zarlink Semiconductor Inc]

SEMICMF.019
Data Sheet
4.0
The SL2150F demonstration board is designed to allow testing of device functionality as a stand alone power
splitter. It allows for testing of the AGC function and independent testing of all channels.
The SL2150F is designed to interface differentially into a silicon tuner such as the SL2101 with simple inductive or
resistive pull-ups. However, to facilitate testing the differential, output is converted to a single ended signal through
a balun. The differential conversion is necessary for achieving second order performance.
All outputs require a DC return path to Vcc to prevent output saturation. This can be provided by the balun, inductive
pull up or resistive pull up. In the case of a resistive pull up, the maximum load value is 38 Ω.
The balun also provides the DC bias to the outputs; all outputs have to be DC 'shorted' to Vcc to prevent saturation
of the output stages.
All input and output terminations are 75 Ω.
The board schematic and layout are contained in Figure 19 - "Test Board Schematic" and Figure 20 - "Test Board
Layout" respectively.
Operation note
4.1
All references are with the board oriented as in bottom view on Figure 1 - "SL2150F Block Diagram". Pin 1 of the
header is defined as the left-hand pin.
4.2
A single 5V supply is required. Power is supplied through the two-pin header PL1, located top right hand corner.
4.3
The RF input F type, SK1, is located on the right hand side of the board.
4.4
Output 1 is the upper of the two F type connectors, SK3, located on the left-hand side.
Output 2 is the lower of the two F type connector, SK4, located on the left-hand side.
Output 3 is the F type connector, SK5, located at the bottom of the board
Output 4 is the F type connector, SK2, located at the top of the board.
The supply voltage must be connected and enabled before any AGC voltage is applied unless the AGC
supplies are current limited to <1 mA or else permanent damage may occur through the ESD structures on
the device.
SL2150F Demonstration Board
Pin Connections
Power Supply
RF Input
RF Outputs
Pin
1
2
Function
Vcc
Vee
13