AP147-320 Datasheet, PDF (10/11 Pages) Skyworks Solutions Inc. – ISM 900 MHz Band 2-Watt InGaP HBT Power Amplifier

PRELIMINARY DATA SHEET • AP147-320
Evaluation Board Stack-Up
Via Plating Thru
Both Boards
See Note 3
0.014
Ref.
Copper Side
of Backing
Detail A
Circuit Board
See Note 1A
0.062
± 0.002
Ref.
Circuit Board Backing
See Note 1B
Application Board Bias Procedure
Step 1. Connect DC ground to the pad located in the top right-
hand corner of the board as indicated below.
Step 2. Connect Stage 1 collector bias voltage, V_CC1, to the pad
at the bottom left side of the board as indicated below.
V_CC1 = 3.2 V
Step 3. Connect Stage 2 collector bias voltage, V_CC2, to the
second pad in from the top left side of the board as indicated
below. V_CC2 = 3.2 V
Step 4. Connect Stage 3 collector bias voltage, V_CC3, to the first
pad at the top right side of the board as indicated below.
V_CC2 = 3.2 V
Step 5. Connect the bias control voltage, V_REF to the pad at the
bottom right of the board as indicated below. V_REF should be tied
to the same line as V_CC1, V_CC2, and V_CC3 to obtain a single
voltage supply.
NOTE: It is important that the V_CC1, V_CC2, V_CC3, and V_REF voltage
source be adjusted such that 3.2 V is measured at the board.
The high drain currents will drop the drain voltage significantly if
long leads are used. Adjust the bias voltage to compensate.
Recommended Solder Reflow Profiles
Refer to the “Recommended Solder Reflow Profile”
Application Note.
Tape and Reel Information
Refer to the “Discrete Devices and IC Switch/Attenuators
Tape and Reel Package Orientation” Application Note.
Step 6. Connect the power control voltages, V_APC1 and V_APC2,
the middle two pads on the bottom of the board, as indicated
below. This is done to obtain a single control voltage supply.
V_APC = 0 V at this point.
Step 7. Apply RF at RF IN port at -20 dBm to start, then adjust
power level to 0 to 5 dBm.
Step 8. The V_APC can be increased to 2.8 V max. or until desired
output power level is achieved at RF OUT port.
Step 9. The pads in the upper left-hand corner, first from the left
and third from the left, are to be grounded.
Based on this
perspective,
this is the
upper left
hand corner
Step 9
Step 4
Step 1
Step 3
Step 2
Step 6
Step 5
Branding Specifications
Pin 1
Indicator
Pin 16
P147
Pin 1
XXXX
YWW
Top View
Skyworks P/N
Lot #
Date Code
Y = Calendar Year
WW = Week
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
10
August 9, 2006 • Skyworks Proprietary Information. • Products and product information are subject to change without notice. • 200293 Rev. F