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RM805
Power Amplifier Module for Broadband
The RM805 Power Amplifier (PA) is a fully matched 28-pin surface mount module designed for Private Mobile Radio (PMR), Wireless Local Loop (WLL), and Time Division Multiple Access/Advanced Mobile Phone Service (TDMA/AMPS) mobile units operating in the 806-849 MHz cellular bandwidth. Microwave Monolithic Integrated Circuits (MMICs), comprised of Gallium Arsenide (GaAs) and CMOS, contain all active circuitry in the module, which includes on-board bias circuitry as well as input and interstage matching circuits. The output match is realized off-chip within the module package to optimize efficiency and high power performance (P3db_sat 35.8 dBm) into a 50 load. This device, manufactured with Skyworks' GaAs Heterojunction Bipolar Transistor (HBT) and silicon CMOS processes, provides for all positive voltage DC supply operation while maintaining high efficiency and good linearity. Primary bias to the RM805 can be supplied directly from a single cell lithium-ion or other suitable battery with a nominal output 3.5 Volts. No external supply side switch is needed as typical "off" leakage is a few microamperes with full primary voltage supplied from the battery.
Distinguishing Features
* * * * * * * Low voltage positive bias supply Good linearity High efficiency Dual mode operation Large dynamic range 28-pin LCC package (10 x 13.97 x 1.7 mm) Power down control
Applications
* * * * * PMR (806-825 MHz) TETRA (806-825 MHz) TDMA (824-849 MHz) AMPS (824-849 MHz) Wireless Local Loop
Functional Block Diagram
VD4 (28) VD3 (8) VD2 (22)
VREG (1)
CMOS CONTROLLER CIRCUIT
RF IN (5)
INPUT MATCH
PA 1
INTER STAGE MATCH 1
PA 2
INTER STAGE MATCH 2 OUTPUT STAGE
OUTPUT MATCH
RF OUT (15)
GaAs HBT IC
MODULE
Data Sheet Skyworks Solutions, Inc., Proprietary (c) 2000-2002 Skyworks Solutions, Inc., All Rights Reserved.
101505D December 6, 2002
Electrical Specifications
RM805
Power Amplifier Module for Broadband
Electrical Specifications
The following tables list the electrical characteristics of the RM805 Power Amplifier. Table 1 lists the absolute maximum rating for continuous operation. Table 2 lists the recommended operating conditions for achieving the electrical performance listed in Table 3, which depicts the electrical performance of the RM805 Power Amplifier over the recommended operating conditions.
Table 1. Absolute Maximum Ratings(1) Parameter
RF Input Power(2) Supply Voltage Regulation Voltage Case Operating Temperature Storage Temperature
NOTE(S):
(1)
Symbol
Pin Vcc Vreg Tc Tstg
Minimum
-- -- 0.0 -30 -55
Nominal
-8.0 3.5 2.75 +25 --
Maximum
11.0 6.9(3) Vcc(4) +110 +125
Unit
dBm Volts Volts C C
No damage assuming only one parameter is set at limit at a time with all other parameters set at or below nominal value. (2) Pulsed operation at 25% duty cycle. (3) When amplifier is biased off (Vreg = 0 V) (4) Voltage on Vreg pin may not exceed the applied Vcc voltage.
Table 2. Recommended Operating Conditions Parameter
Supply Voltage Regulation Voltage Operating Frequency Continuous RMS Output Power Operating Temperature
Symbol
Vcc Vreg Fo PoRMS To
Minimum
3.0 2.65 806
Nominal
3.5 2.75 -- 29.0
Maximum
4.4 2.85 849 31.0 +85
Unit
Volts Volts MHz dBm C
-30
+25
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Skyworks Solutions, Inc., Proprietary
101505D December 6, 2002
RM805
Power Amplifier Module for Broadband
Electrical Specifications
Table 3. Electrical Specifications for TDMA/AMPS Nominal Operating Conditions(1) Characteristics
Quiescent current Gain Saturated Output Power
Condition
Vreg = 2.75 Po = 29 dBm Duty Cycle 25% Gain Compression 3 dB Po = 29 dBm Po = P3dB sat
Symbol
Iq Gp P3dB sat
Minimum
332 35.5 35.3
Typical
370 38.0 35.8
Maximum
450 40.0 --
Unit
mA dB dBm
Power Added Efficiency PAEa PAEd 21.0 48.0 23.0 52.0 -- -- % %
Harmonic Levels Second Third Fourth Noise Power in RX Band Fc + 30 MHz, BW = 18 kHz Noise Figure Input Voltage Standing Wave Ratio Stability (Spurious output) Ruggedness - No damage
NOTE(S):
(1)
Po P3db sat Po P3db sat Po P3db sat Po 29 dBm -- --
AFo2 AFo3 AFo4 RxBN NF VSWR S
-- -- -- -- -- -- 10.0:1 15.0:1
-10.0 -30.0 -30.0 -- 8.0 1.3:1 -- --
-- -- -- -85.0 -- 2.0:1 -36.0 --
dBm dBm dBm dBm/Hz dB -- dBm VSWR
Po 29 dBm
Ru
Vcc = +3.5 V, Vreg = +2.75 V, Freq = 815 MHz, Tc = 25 C, Vreg pulsed at 25% duty cycle, unless otherwise specified.
101505D December 6, 2002
Skyworks Solutions, Inc., Proprietary
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Evaluation Board Description
RM805
Power Amplifier Module for Broadband
Evaluation Board Description
The evaluation board is a platform for testing and interfacing design circuitry. To accommodate the interface testing of the RM805, the evaluation board schematic and assembly diagram are included for preliminary analysis and design. Figure 1 shows the basic schematic of the board for the 806 MHz to 849 MHz range and Figure 2 illustrates the board layout.
Figure 1. Evaluation Board Schematic
VD2 C2 10F VD4 C1 10F VREG 1 NC 2 NC 3 4 RF_IN 50 OHM 5 6 NC 7 8 VD3 C4 10F C5 1000pF 9 10 NC 11 12 NC 13 14 NC 28 27 NC 26 NC 25 24 23 22 21 20 19 C3 1000pF SCHEMATIC FOR TEST FIXTURE
RM805
18 17 16 15 50 OHM RF_OUT
101505_009
Figure 2. Evaluation Board Assembly Diagram
GND VCTL VREG VD4 VD3 VD2 VD1 GND
+ C1
+ C3
C2
INPUT
RM805
C5 C6 + C4 + C7
IDEN TEST FIXTURE
101505-007
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Skyworks Solutions, Inc., Proprietary
101505D December 6, 2002
RM805
Power Amplifier Module for Broadband
Package Dimensions and Pin Descriptions
Package Dimensions and Pin Descriptions
The RM805 is a multi-layer laminate base, overmold encapsulated modular package designed for surface mount solder attachment to a printed circuit board.
Figure 3. RM805 Package Dimensions
6.99
Pin 1
28 X 0.13
Exposed Center Ground Pad 10.00
0.05 TYPICAL
6.50
5.00
9.00 13.97
4 X R 0.99
BOTTOM VIEW
R0.38
0.89 1.70 0.76
FRONT VIEW
PAD DETAIL
101505_006
101505D December 6, 2002
Skyworks Solutions, Inc., Proprietary
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Package Dimensions and Pin Descriptions
RM805
Power Amplifier Module for Broadband
Table 4. Pin Names and Descriptions Pad
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
Pad Name
VREG1 VCNTL GND1 GND2 RFIN GND3 VREG2 VD3 GND4 RSVD GND5 GND6 GND7 VD1 RFOUT GND8 GND9 GND10 GND11 GND12 GND13 VD2 GND14 GND15 GND16 GND17 GND18 VD4
Description
Regulated bias enable control voltage, 0.0=Off, 2.75V=On Reserved for gain adjust control, currently a floating pad Low Inductance Ground Connection Low Inductance Ground Connection 806-849 MHz RF input signal (typically -8 dBm) 50 Ohm Low Inductance Ground Connection Reserved for additional VREG signal, currently a floating pad Supply voltage for driver collector bias (typically 3.5V) Low Inductance Ground Connection Used to identify device, Skyworks pad must float Low Inductance Ground Connection Low Inductance Ground Connection Low Inductance Ground Connection Unused supply voltage, currently a floating pad 806-849 MHz RF output signal (typically +29 dBm) 50 Ohm Low Inductance Ground Connection Low Inductance Ground Connection Low Inductance Ground Connection Low Inductance Ground Connection Low Inductance Ground Connection Low Inductance Ground Connection Supply voltage for output (final) stage collector bias (typically 3.5V) Low Inductance Ground Connection Low Inductance Ground Connection Low Inductance Ground Connection Low Inductance Ground Connection Low Inductance Ground Connection Supply voltage for base bias circuitry to all stages (typically 3.5V)
NOTE(S): Center attachment pad must have a low inductance and low thermal resistance connection to the
customer's printed circuit board ground plane.
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Skyworks Solutions, Inc., Proprietary
101505D December 6, 2002
RM805
Power Amplifier Module for Broadband
Package and Handling Information
Package and Handling Information
Because of its sensitivity to moisture absorption, this device package is baked and vacuum packed prior to shipment. Instructions on the shipping container label must be followed regarding exposure to moisture after the container seal is broken, otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. The RM805 is capable of withstanding an MSL 3/225 C solder reflow. Care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. If the part is attached in a reflow oven, the temperature ramp rate should not exceed 5 C per second; maximum temperature should not exceed 225 C. If the part is manually attached, precaution should be taken to insure that the part is not subjected to temperatures exceeding 225 C for more than 10 seconds. For details on both attachment techniques, precautions, and handling procedures recommended by Skyworks, please refer to Application Note: PCB Design and SMT Assembly/Rework, Document Number 101752. Additional information on standard SMT reflow profiles can also be found in the JEDEC Standard J-STD-020A. Production quantities of this product are shipped in the standard tape-and-reel format. For packaging details, refer to Application Note: Tape and Reel, Document Number 101568.
Figure 4. Typical Case Markings
CONEXANT
Mark Pin 1 Identifier
RM805-NN EXXXXX.XX YYWW MEX
Manufacturing Part Number-Revision Number Lot Number YY = Manufacture Year WW = Week Package Sealed MEX = Country Code
101505_008
101505D December 6, 2002
Skyworks Solutions, Inc., Proprietary
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Electrostatic Discharge Sensitivity
RM805
Power Amplifier Module for Broadband
Electrostatic Discharge Sensitivity
The RM805 is a Class I device. Figure 5 lists the Electrostatic Discharge (ESD) immunity level for each pin of the RM805 product. The numbers in Figure 5 specify the ESD threshold level for each pin where the I-V curve between the pin and ground starts to show degradation. The ESD testing was performed in compliance with MIL-STD-883E Method 3015.7 using the Human Body Model. Since 2000 volts represents the maximum measurement limit of the test equipment used, pins marked > 2000 V pass 2000V ESD stress.
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Figure 5. ESD Sensitivity Areas
> + 2000 V < - 2000 V > + 2000 V VD2 < - 2000 V
GND18
GND17
GND16
> + 2000 V VREG1 < - 2000 V > + 2000 V VCNTL < - 2000 V GND1 GND2 + 700 V RFIN - 1800 V GND3 > + 2000 V VREG2 < - 2000 V
1 2 3 4 5 6 7
28
VD4
27
26
25
24
GND15
23
GND14
22
21 20 19 18 17 16 15
GND13
GND12
GND11 GND10
GND9 GND8 RFOUT > + 2000 V < - 2000 V
8
+ 1400 V VD3 - 1400 V
9
GND4
10
> + 2000 V RSVD < - 2000 V
11
GND5
12
GND6
13
GND7
14
> + 2000 V VD1 < - 2000 V
101505_005
Various failure criteria can be utilized when performing ESD testing. Many vendors employ relaxed ESD failure standards which fail devices only after "the pin fails the electrical specification limits" or "the pin becomes completely non-functional". Skyworks employs most stringent criteria, fails devices as soon as the pin begins to show any degradation on a curve tracer. To avoid ESD damage, both latent and visible, it is very important that the product assembly and test areas follow the Class-1 ESD handling precautions listed in Table 5.
Table 5. Precautions for GaAs ICs with ESD Thresholds Greater Than 200V But Less Than 2000V
Personnel Grounding Wrist Straps Conductive Smocks, Gloves and Finger Cots Antistatic ID Badges Protective Workstation Dissipative Table Tops Protective Test Equipment (Properly Grounded) Grounded Tip Soldering Irons Conductive Solder Suckers Static Sensors Facility Relative Humidity Control and Air Ionizers Dissipative Floors (less than 109 to GND) Protective Packaging & Transportation Bags and Pouches (Faraday Shield) Protective Tote Boxes (Conductive Static Shielding) Protective Trays Grounded Carts Protective Work Order Holders
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Skyworks Solutions, Inc., Proprietary
101505D December 6, 2002
Ordering Information
Model Number RM805 Manufacturing Part Number RM805-17 Product Revision 17 Package 10.0 x 13.97 x 1.7mm Operating Temperature -30 C to +85 C
Revision History
Revision A B C D Level Date May 2001 August 2001 June 17, 2002 Decmber 6, 2002 Initial Release Revise: Product Description/Applications Revise: ESD data; Update: References Information Updated Produt Revision to 17 Description
References
Application Note: Tape and Reel, Document Number 101568 Application Note: PCB Design and SMT Assembly/Rework, Document Number 101752
(c) 2000-2002, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products. These materials are provided by Skyworks as a service to its customers and may be used for informational purposes only. Skyworks assumes no responsibility for errors or omissions in these materials. Skyworks may make changes to its products, specifications and product descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from future changes to its products and product descriptions. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as may be provided in Skyworks' Terms and Conditions of Sale for such products, Skyworks assumes no liability whatsoever. THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, RELATING TO SALE AND/OR USE OF SKYWORKSTM PRODUCTS INCLUDING WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. SKYWORKS FURTHER DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THESE MATERIALS. SkyworksTM products are not intended for use in medical, lifesaving or life-sustaining applications. Skyworks' customers using or selling SkyworksTM products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. The following are trademarks of Skyworks Solutions, Inc.: SkyworksTM, the Skyworks symbol, and "Breakthrough Simplicity"TM. Product names or services listed in this publication are for identification purposes only, and may be trademarks of third parties. Thirdparty brands and names are the property of their respective owners. Additional information, posted at www.skyworksinc.com, is incorporated by reference.
General Information: Skyworks Solutions, Inc. 4311 Jamboree Rd. Newport Beach, CA. 92660-3007 www.skyworksinc.com

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