RMPA2453 View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
Manufacturer
RMPA2453 Datasheet PDF : 10 Pages
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Evaluation Board Turn-On Sequence1
Recommended turn-on sequence:
1) Connect common ground terminal to the Ground (GND)
pin on the board.
2) Apply low voltage 0.0 to +1.0 V to pin VL.
3) Apply positive supply voltage VC1 (= 3.3V) to pin VC1
(first stage collector).
4) Apply positive supply voltage VC2 (= 3.3V) to pin VC2
(second stage collector).
5) Apply positive bias voltage VM12 (= 3.3V) to pin VM12
(bias networks).
7) Apply input RF power to SMA connector pin RFIN.
Currents in pins VC1 and VC2 will vary depending on the
input drive level.
8) Vary positive voltage VL on pin VREG from +0.5V to
+2.4V to shut down the amplifier or alter the power level.
Shut down current flow into the pins:
Pin
VM12
VC1
VC2
VL
Current
<0.7 mA
<1 nA
<1 nA
<0.25 mA
6) At this point, you should expect to observe the following
positive currents flowing into the pins:
Pin
VM12
VC1
VC2
VL
Current
10.0 – 15.0 mA
35.0 – 55.0 mA
40.0 – 60.0 mA
<1 nA
Recommended turn-off sequence:
Use reverse order described in the turn-on sequence
above.
Note:
1: Turn on sequence is not critical and it is not necessary to sequence power
supplies in actual system level design.
©2004 Fairchild Semiconductor Corporation
RMPA2453 Rev. D
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