sky65146-21 Skyworks Solutions, Inc., sky65146-21 Datasheet - Page 12

• Manufacturer Part Number: sky65146-21
• Description: Sky65146-21 806-849 Mhz, 3.5 V Broadband Power Amplifier
• Manufacturer: Skyworks Solutions, Inc.

DATA SHEET • SKY65146-21 POWER AMPLIFIER
Application Circuit Notes
Center Ground. It is extremely important to sufficiently ground
the bottom ground pad of the device for both thermal and stability
reasons. Multiple small vias are acceptable and will work well
under the device if solder migration is an issue.
VD2 (pin 1). Supply voltage for the output (final) stage collector
bias (typically 3.5 V). The VD2 pin can be bypassed using
capacitors C2 and C3. The pin should be placed in the
approximate location shown on the Evaluation Board, but exact
placement is not critical.
GND (pins 2, 3, 6, 11, 13, 16, 19, 20, and 23 through 28).
Attach all ground pins to the RF ground plane with the largest
diameter and lowest inductance via that the layout allows.
Multiple small vias are acceptable and will work well under the
device if solder migration is an issue.
N/C (pins 4, 5, 9, 10, 14, 17, 18, and 21). These pins are open
and may or may not be connected to ground.
VD4 (pin 7). Supply voltage for base bias circuitry to all stages
(typically 3.5 V). The VD4 pin can be bypassed using capacitor C1.
The pin should be placed in the approximate location shown on
the Evaluation Board, but exact placement is not critical.
VREG (pin 8). Regulated, bias enable control voltage for the
silicon CMOS controller (0 V = off; 2.75 V = on). Nominal enable
voltage is between 2.65 VDC and 2.85 VDC. When this pin is set
to 0 V, the PA is forced into standby mode.
RF_IN (pin 12). Amplifier RF input pin (characteristic impedance,
Z
blocking capacitor. All impedance matching is provided internal to
the module.
VD3 (pin 15). Supply voltage for the driver collector bias (typically
3.5 V). The VD3 pin can be bypassed using capacitors C4 and C5.
The pin should be placed in the approximate location shown on
the Evaluation Board, but exact placement is not critical.
12
0
, equals 50 Ω). The module includes an internal, onboard DC
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
January 18, 2010 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200810D
Identifier
Pin 1
Figure 34. SKY65146-21 Typical Case Markings
EXXXXX.XX
SKY65146
YYWW MX
RF_OUT (pin 22). Amplifier RF output pin (characteristic
impedance, Z
onboard DC blocking capacitor. All impedance matching is
provided internal to the module.
Package Dimensions
Typical case markings are shown in Figure 34. The PCB layout
footprint for the SKY65146-21 is shown in Figure 35. Package
dimensions for the 28-pin MCM are shown in Figure 36, and tape
and reel dimensions are provided in Figure 37.
Package and Handling Information
Since the device package is sensitive to moisture absorption, it is
baked and vacuum packed before shipping. Instructions on the
shipping container label regarding exposure to moisture after the
container seal is broken must be followed. Otherwise, problems
related to moisture absorption may occur when the part is
subjected to high temperature during solder assembly.
THE SKY65146-21 is rated to Moisture Sensitivity Level 3 (MSL3)
at 260 C. It can be used for lead or lead-free soldering. For
additional information, refer to the Skyworks Application Note,
PCB Design and SMT Assembly/Rework Guidelines for MCM-L
Packages, document number 101752.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format. For packaging details, refer to the Skyworks
Application Note, Tape and Reel Information – RF Modules,
document number 101568.
Lot Number
YY = Manufacture Year
WW = Week Package
MX = Country Code
Manufacturing Part Number
& Revision Number
Sealed
0
, equals 50 Ω). The module includes an internal,