RMPA2455 Fairchild Semiconductor, RMPA2455 Datasheet - Page 8

• Manufacturer Part Number: RMPA2455
• Description: IC MOD RF POWER AMP 16PIN 3X3LCC
• Manufacturer: Fairchild Semiconductor

Specifications of RMPA2455

• Current - Supply: 140mA
• Frequency: 2.4GHz ~ 2.5GHz
• Gain: 30dB
• P1db: 30dBm
• Package / Case: 16-LCC
• Rf Type: 802.11/Wi-Fi, WLAN
• Voltage - Supply: 4.5V ~ 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Noise Figure: -
• Test Frequency: -
• Other names: RMPA2455TR

RMPA2455 Rev. D
Evaluation Board Turn-On Sequence
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 V
3) Apply positive supply voltage VC1 (= 5.0V) to pin VC1 (first
stage collector).
4) Apply positive supply voltage VC2 (= 5.0V) to pin VC2
(second stage collector).
5) Apply positive bias voltage VM12 (= 3.3V) to pin VM12 (bias
networks).
6) At this point, you should expect to observe the following posi-
tive currents flowing into the pins:
Pin
VM12
VC1
VC2
V
L
Current
15.0 – 20.0 mA
45.0 – 65.0 mA
60.0 – 80.0 mA
<1 nA
L
.
1
8
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 V
shut down the amplifier or alter the power level. Shut down cur-
rent flow into the pins:
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 sup-
Pin
VM12
VC1
VC2
V
L
plies in actual system level design.
Current
<0.7 mA
<1 nA
<1 nA
<0.25 mA
L
on pin VREG from +0.5V to +2.4V to
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