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PRELIMINARY DATA SHEET
SKY65006: 3.3 V, 2.5 GHz Linear Power Amplifier
Features
2.4-2.5 GHz operation G Advanced InGaP HBT process G Integrated output power detector G Integrated output second harmonic filter G Low quiescent current: 50 mA G 28 dB small signal gain G 802.11g linear power: 18 dBm (includes integrated filter loss) G 802.11b mask-compliant power: 21 dBm (includes integrated filter loss) G Low-cost plastic package G Available on tape and reel
G
Block Diagram
GND 16 GND 1 GND 15 VCC 14 GND 13 12 GND
RF IN
2
LPF
11
RF OUT/VCC
GND
3
10
RF OUT/VCC
GND
4 5 6 VREG1 7 VREG2 8 VDCC
9
VDETOUT
Description
The SKY65006 is a linear, high-gain, two-stage power amplifier with integrated second harmonic filter, designed for low voltage operations. This device is manufactured on our advanced InGap HBT process. It is designed for power amplifier applications in WLAN, in PC and handsets, and spread spectrum systems from 2.4-2.5 GHz. The amplifier is packaged in a QFN-16, 3 x 3 mm package.
VBCC
QFN-16 (3 x 3 mm)
0.118 (3.00 mm) 0.118 (3.00 mm) 0.008 (0.20 mm) Ref. 0.001 (0.02 mm) +0.03 -0.02 (0.001 mm) 0.030 (0.75 mm) 0.002 (0.05 mm) 0.057 (1.45 mm) 0.004 (0.10 mm) Exposed Pad 0.059 (1.500 mm)
Pin 1 Indicator
0.029 (0.73 mm)
0.057 (1.45 mm) 0.004 (0.10 mm)
0.059 (1.500 mm)
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200122 Rev. D * Skyworks Proprietary Information. * Products and product information are subject to change without notice. * May 17, 2007
1
PRELIMINARY DATA SHEET * SKY65006
Pin Assignments
Pin 1, 3, 4, 12, 13, 15, 16 2 5 6 7 8 9 10, 11 Symbol GND Description Equipotential point. Connect these pins to the printed circuit board common via the lowest possible impedance. RF input DC control voltage input that sets bias to the first amplifier stage. DC control voltage input to regulate the current to the first amplifier stage. DC control voltage input to regulate the current to the 2nd amplifier stage. Reference voltage input to power detector. Power detector output voltage. RF outputs and supply voltage inputs to second amplifier stage. These pins must be connected directly together for current sharing. DC supply voltage input to the first amplifier stage.
Absolute Maximum Ratings
Characteristic Supply voltage (VCC) Supply current (VICC) Regulator supply voltage (VREG1 & VREG2) Operating temperature Storage temperature RF input power Value 5V 500 mA < VCC V -40 C to +85 C -65 C to +85 C 10 dBm
RF IN VBCC VREG1 VREG2 VDCC VDETOUT RF OUT/VCC
Performance is guaranteed only under the conditions listed in the specifications table and is not guaranteed under the full range(s) described by the Absolute Maximum specifications. Exceeding any of the absolute maximum/minimum specifications may result in permanent damage to the device and will void the warranty.
14
VCC
DC Voltage Control Table
Mode RF IN-RF OUT VCC 3.3 VREG(1) 3 VBCC 3.3 VDCC 3.3
CAUTION: Although this device is designed to be as robust as possible, ESD (Electrostatic Discharge) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions must be employed at all times.
1. VREG refers to VREG on the engineering test board.
General RF Transmit Electrical Specifications
TA = 25 C, VCC = 3.3 V, VREG = 3 V
Parameter Frequency range Gain Gain variation over frequency Quiescent current Input return loss Output return loss Output P1 dB 2nd harmonic 3rd harmonic Detector voltage Symbol F lS21l lS21l ICQ lS11l lS22l P1 dB F2 F3 VDET Small signal Small signal (No RF signal ) Small signal Small signal CW CW at P1 dB CW at P1 dB CW at POUT = 0 dBm Condition Min. 2400 27.5 0.2 50 -21.2 -6.2 23.9 -58.6 -43.2 0.2 Typ. Max. 2500 Unit MHz dB dB mA dB dB dBm dBm dBm V
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
May 14, 2007 * Skyworks Proprietary Information. * Products and product information are subject to change without notice. * 200122 Rev. D
PRELIMINARY DATA SHEET * SKY65006
802.11g Electrical Specifications
OFDM Modulation, 54 Mbps, TA = 25 C, VCC = 3.3 V, VREG = 3 V
Parameter Linear power at 2.442 GHz Current consumption Detector voltage Symbol POUT ICC VDET Condition 54 Mbps at 3.5% EVM 54 Mbps at linear power 54 Mbps at linear power Min. Typ. 18.1 0.129 1 Max. Unit dBm A V
802.11b Electrical Specifications
CCK Modulation, 11 Mbps, TA = 25 C, VCC = 3.3 V, VREG = 3 V
Parameter Compliant power at 2.442 GHz Current consumption Detector voltage Symbol POUT ICC VDET 11 Mbps 11 Mbps at compliant power 11 Mbps at compliant power Condition Min. Typ. 21.5 0.191 1.4 Max. Unit dBm A V
802.11b data is taken with a raised cosine filter and an alpha factor of 0.7.
Typical Performance Data
30 20 lS11l, lS21l, lS22l (dB) lS11l, lS21l, lS22l (dB) 10 0 -10 -20 -30 -40 -50 -60 0 1 2 3 4 5 6 7 8 9 10 11 12 lS11l lS21l lS22l 30 20 10 0 -10 -20 -30 -40 -50 -60 2.40 2.42 2.44 2.46 2.48 2.50 lS11l lS21l lS22l
Frequency (GHz)
Frequency (GHz)
Small Signal Response Conditions: VCC = 3.3 V, VREG = 3 V, TA = 25 C
Small Signal Response Conditions: VCC = 3.3 V, VREG = 3 V, TA = 25 C
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200122 Rev. D * Skyworks Proprietary Information. * Products and product information are subject to change without notice. * May 14, 2007
3
PRELIMINARY DATA SHEET * SKY65006
30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 0
Gain
ICC
EVM
0.20 0.18 0.16 0.14
0.10 0.08 0.06 0.04 0.02 0 2 4 6 8 10 12 14 16 18 20
VDET (V)
0.12
1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 2 4 6 8
VDET
EVM (%), Gain (dB)
ICC ( mA )
10
12
14
16
18
20
POUT (dBm)
POUT (dBm)
802.11g EVM and ICC vs. POUT OFDM Modulation, 54 Mbps, VCC = 3.3 V, VREG = 3 V, FC = 2.442 GHz, TA = 25 C
VREG = 2.95 V VREG = 3.15 V VREG = 3.00 V VREG = 3.25 V VREG = 3.05 V 36 34 32
VDET vs. POUT OFDM Modulation, 54 Mbps, VCC = 3.3 V, VREG = 3 V, FC = 2.442 GHz, TA = 25 C
Gain F2 F3 -10 -20 -30
18.5 18.4 18.3
F2 and F3 (dBm)
POUT (dBm)
18.1 18.0 17.9 17.8 17.7 17.6 17.5 2412 2424 2436 2448 2460 2472 2484
Gain (dB)
18.2
30 28 26 24 22 20 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
-40 -50 -60 -70 -80 -90
POUT (dBm)
Frequency (GHz)
VREG vs. POUT OFDM Modulation, 54 Mbps, VCC = 3.3 V, TA = 25 C
30 29 28 27 26 25 24 23 22 21 20 2412 2424 2436 2448 2460 2472 Gain ICC POUT 0.195 0.194 0.193 0.192 0.191 0.190 0.189 0.188 0.187 0.186 0.185 2484
CW, 2F and 3F Harmonics vs. POUT VCC = 3.3 V, VREG = 3 V, FC = 2.442 GHz, TA = 25 C
Device Branding Specifications
Pin 1 Indicator Pin 16
POUT (dBm), Gain (dB)
Pin 1
006A XXXX YXX
Top View
Skyworks P/N Lot # Date Code Y = Calendar Year WW = Week
ICC (MHz)
Frequency (MHz)
802.11b POUT, Gain, and ICC vs. Frequency CCK Modulation, 11 Mbps, VCC = 3.3 V, TA = 25 C
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 4
May 14, 2007 * Skyworks Proprietary Information. * Products and product information are subject to change without notice. * 200122 Rev. D
PRELIMINARY DATA SHEET * SKY65006
Applications Circuit
L1 L2 C4 C6 Port VCC
C3
Optional
16 1 2 15 14 13 12 11
Optional Filter/Match L4 C2 C10 C11 Port RF Out
Port RF In
C1
L3
3 4 5
SKY65006
10 9
6
7
8
C8
R1
C5
R2
R3
C7
Port DET Out
C9
Port RREG
Applications Board
RF IN
GND VCC VREG GND GND
C8
+
4
C1
L3
1
R1
1
16
+
C9
C3 R2 L1 C5
10 11 12
C4 L2 C2 C7 R3 C10 L4 C11 C6
+
VDET
VCC 3.3 V VREG 3 V
RF OUT
Board Layout
SKY65006 EN18-D730 REV 2
Board Photograph
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200122 Rev. D * Skyworks Proprietary Information. * Products and product information are subject to change without notice. * May 14, 2007
5
PRELIMINARY DATA SHEET * SKY65006
Bill of Material for Applications Board
Part # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 ID C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 L1 L2 L3 L4 R1 R2 R3 PCB Size 0402 0402 0402 0402 0402 0603 0402 0402 0402 0402 0402 0402 0402 0402 0402 0402 0402 0402 Value 6 6 10K 10K 1.8 4.7 5 10 10 1 1 22 22 2.2 2.2 180 240 51K Units pF pF pF pF pF F pF F F pF pF nH nH nH nH Manufacturer Murata Murata Murata Murata Murata Murata Murata Murata Murata Murata Murata TDK TDK TDK TDK Panasonic(1) Panasonic(1) Panasonic(1) Metro circuits Product Number GRM1555C1H6R0CZ01E GRM1555C1H6R0CZ01E GRM155R71H102KA01 GRM155R71H102KA01 GRM1555C1H1R8CZ01D GRM188R60J475KE19D GRM1555C1H5R0CZ01E GRM1555C1H100JZ01E GRM1555C1H100JZ01E GRM1555C1H1R0CZ01E GRM1555C1H1R0CZ01E MLK1005S22NJT000 MLK1005S22NJT000 GRM1555C1H2R2CZ01E GRM1555C1H2R2CZ01E ERJ2GEJ181X ERJ2GEJ241X ERJ2GEJ513X EN18-D730
1. Panasonic is Skyworks preferred vendor, however any suitable equivalent will do.
Test Board Biasing Procedure
1. Connect the RF input and output ports as labeled on the engineering evaluation board. 2. Set the input power level from the signal generator to approximately -25 dBm. 3. Apply ground connection from DC voltage supply to all GND pins before applying any voltage. 4. Adjust the power supply to 3.3 V and set the current limit to 400 mA. Apply voltage to the pin labeled VCC and note that there is no current draw from the supply. Be sure to apply the voltage to VCC before applying any other voltages to the test board. 5. Adjust a second power supply output to 3.0 V and set the current limit to 30 mA. Apply voltage to the pin labeled VREG and note that the current draw is approximately 10 mA. 6. Observe that the current on the VCC supply is in the range of the quiescent current specification. The SKY65006 should be approximately 50 mA. 7. Observe that the small signal gain is within the range specified. The SKY65006 should be in the range of 27 dB. This should verify the proper working conditions for this device, and further testing can proceed. 8. To observe the detector voltage output, connect a voltmeter or oscilloscope to the VDET pin on the evaluation test board. Set the signal source to CW mode and increase power until the output voltage begins to increase. The nominal offset voltage with low or no signal inputs should be approximately 50-200 mV and should increase monotonically to approximately 700-1000 mV, when driven at an output level of approximately 18 dBm. The evaluation circuit contains an external 51K resistor and an equivalent capacitance of 10 pF to ground. 9. Bias the unit off by first removing the VREG power supply and finally remove the connection to the VCC power supply.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 6
May 14, 2007 * Skyworks Proprietary Information. * Products and product information are subject to change without notice. * 200122 Rev. D
PRELIMINARY DATA SHEET * SKY65006
Application Information
The Skyworks SKY65006 is a high-performance 2-stage InGaP power amplifier designed for 2.4-2.5 GHz ISM, IEEE802.11b and 802.11g WLAN band applications. The SKY65006 is a high-efficiency linear amplifier designed for single 3.3 V supply operation, requiring no input and output matching components for 50 operation. This device also includes an internal power detector and integrated harmonic filter for reduced PC board component count. The integrated low pass filter is also highly effective in reducing harmonics at their source by localizing harmonic rejection to a tiny portion of the PA chip. This significantly reduces the risk of radiation from a high order filter design external to the amplifier. Filtering of harmonics in this way may eliminate the need for an external shield over the PA, and reduces overall cost. If additional suppression of harmonics is required, an external low pass function can be added to the output of the amplifier. Refer to data sheet for filter values and response plots. The SKY65006 requires a nominal VCC supply voltage of 3.3 V and a positive control voltage VREG1, 2 providing bias for the first and second stage amplifiers. Nominal control voltage, VREG, is 2.5-2.6 V resulting from the stack of two emitter-base junctions of about 1.3 V each for typical GaAs HBT device. To insure proper reference currents into VREG1, 2, for normal operation of the RF stages, drop-in resistors could be used between VREG1, 2 and a VREG supply. Bias control would then be set in the range of 2.7-3.5 V allowing added flexibility for both the control voltage value and desired RF stage currents. If additional output power is required, VCC can also be increased 4.0 V. Biasing of each stage consists of an external resistor of 180 (R1) and 240 (R2) for the recommended typical bias currents of 15 mA and 35 mA for stage 1 and 2 respectively. In most applications one end of each of the bias resistors is tied to the VREG supply, so both amplifier stages are biased with a single common voltage. Capacitor C4, 1.8 pF, bypasses the VREG stage 1 control bias pin and is used to improve RF rejection of the bias control lines. Although there is no need for external matching when operating in a 50 system, an input and output 6 pF decoupling capacitor is shown on the evaluation circuit. This capacitor is only mandatory on the RF output side of the device. The RF input is DC isolated and could be connected to driver circuits directly without the need for additional blocking capacitors. Capacitors of 6 pF were chosen because their self-resonant frequency would not add any unwanted disturbances in the 50 transmission line path. The SKY65006 is unconditionally stable at any frequency and voltage setting as long as it is grounded correctly. It is extremely important to pay special attention to all RF grounding pads especially those directly under the device. Ground pad vias and solder mask patterns are designed in such a way to ensure minimum parasitic inductance to the underlying ground and at each RF bypassing component. To ensure reliable soldering of the device paddle, it is highly recommended that filled vias with a minimal reliable diameter and filling the entire pattern be used. The filled-via technique would remove the possibility of solder migration down via holes, which can cause a large increase in inductance and possible instabilities. Each amplifier stage is biased through a series choke and shunt capacitor combination which is completely integrated on chip to provide maximum RF isolation and harmonic radiation immunity. To avoid interferences from the low-frequency gain of the amplifier and to insure stability at low out of band frequencies, stage 1 amplifier is biased through inductor L1. It is also then shunted by a large value capacitance to ensure proper low-frequency bypassing of the amplifier. To avoid a shunting effect on the 50 line, a high-impedance, self-resonating choke L2 (in the range of 22-33 nH depending on vendor and size) and a large value bypass capacitor are used for biasing the output stage. Capacitor C7, 4.7 F, on the VCC line should be placed as close as possible to the biasing network supplying stage 2 or the output stage of the amplifier. Applications with the DC bias being generated strictly from a battery as the voltage source may not require this capacitor, or as large a value as specified in the applications circuit. However, in that case, a smaller ceramic capacitor of at least 0.1 F should be used and also placed as close as possible to the biasing network supplying stage 2. Note: Normal operation requires that VCC including VBCC be applied before the application of the VREG voltages biasing stage 1 and 2 bias currents. If VCC and VBCC are not applied prior to the application of the VREG biasing, voltage damage could occur from excessive base current draw through the collector junction of the bias transistor. The SKY65006 also includes an on-board, compensated power detector providing a single-ended output voltage for measuring power over a wide dynamic range. The detector load and settling time constant are set external to the device. Nominal detector load is 51K and 5 pF, yielding a settling time of approximately 500 ns. Note that there is an internal 5 pF on-chip capacitance, so the net capacitance value is approximately 10 pF. Lower resistor values may be used if necessary with the net impact being a lower output detector voltage over its useful dynamic range. For proper detector operation, a reference voltage must be applied to the VDET line. Any voltage between 2 and 4 V is acceptable for the reference voltage, but it is recommended to supply VDET from the VREG power supply. The benefit in doing this is that the approximate 2 mA of current that the reference circuit consumes will not be wasted with the PA in the "Off" state. There is also the option of not biasing the detector reference at all if the current consumption is of prime importance. The detector will then act as a normal unbiased detector, and sensitivity and accuracy will be degraded.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200122 Rev. D * Skyworks Proprietary Information. * Products and product information are subject to change without notice. * May 14, 2007
7
PRELIMINARY DATA SHEET * SKY65006
The application's circuit board was constructed as a four-layer FR4 stack with an overall thickness of 0.062 inches. Top layer dielectric is 0.01-inch thick with 50 transmission line widths of 0.0195 inches. Printed circuit board was constructed using a symmetrical 0.01-inch stack on the top and bottom layers and with a 0.032-inch thick pre-preg core. All components were 0402 in size with the exception of the 4.7 F and 10 F Tantalum capacitors. Please note that the 10 F capacitors were installed to provide low frequency filtering for lab testing. Actual values, if necessary, will be dependent upon layout and circuit environment. All ground vias used were 0.012 inches in diameter and placed as close to the ground ends of by-passing components as possible. Four vias were used under the device to create a low inductance path to ground. If a smaller diameter is to be used, or if the substrate thickness is greater than 0.01 inches, additional vias must be placed under the device to reduce the potential risk of parasitic oscillation.
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.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 8
May 14, 2007 * Skyworks Proprietary Information. * Products and product information are subject to change without notice. * 200122 Rev. D
PRELIMINARY DATA SHEET * SKY65006
Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Skyworks products, information or materials, except as may be provided in Skyworks Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. SKYWORKS 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 DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications, or other equipment in which the failure of the Skyworks products could lead to personal injury, death, physical or environmental damage. Skyworks customers using or selling Skyworks 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. Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, and "Breakthrough Simplicity" are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners. Additional information, including relevant terms and conditions, posted at www.skyworksinc.com, are incorporated by reference.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
200122 Rev. D * Skyworks Proprietary Information. * Products and product information are subject to change without notice. * May 14, 2007
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