PRELIMINARY DATA SHEET SKY65370-11: 814-849 MHz High Linearity, Active Bias LowNoise Variable Gain Amplifier Applications • LTE, WCDMA Infrastructure • Low noise, high linearity systems Features • Fully integrated low-noise front end • High gain: 35 dB • Excellent return loss: >20 dB • High linearity gain control > 35 dB • Low NF: 1.0 dB • Switchable high/low gain state modes • Temperature and process stable active bias • Small MCM (16-pin, 8 x 8 mm) package (MSL3 @ 260 °C per JEDEC J-STD-020) Figure 1. SKY65370-11 Block Diagram Description The SKY65370-11 is variable gain Low-Noise Amplifier (LNA) with an active bias and high linearity performance. The first stage of the device is comprised of an LNA with a bypass switch that is followed by a high linearity driver amplifier, a variable voltage attenuator, and a high linearity power amplifier. This module architecture provides excellent return loss, low noise, and high linearity performance. The internal active bias circuitry ensures repeatable performance over temperature. The device is fully integrated and requires minimal external components. The SKY65370-11 is manufactured in a compact, 8 x 8 mm, 16pin Multi-Chip Module (MCM) package. A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. Figure 2. SKY65370-11 Pinout – 16-Pin MCM (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201965A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2012 1 PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Table 1. SKY65370-11 Signal Descriptions Pin # Name Description Pin # Name Description 1 RFIN RF input 9 GC Gain control, 0 V (maximum gain) to +3.3 V (minimum gain) 2 GND Ground 10 GND Ground 3 BPC1 Bypass switch for high/low gain state, terminal 1. See Table 7. 11 GND Ground 4 GND Ground 12 RFOUT RF output. No blocking capacitor required. 5 VCC2 Second state amplifier bias. Connect to +5 V, 120 mA minimum DC supply. 13 GND Ground 6 BPC2 Bypass switch for high/low gain state, terminal 2. See Table 7. 14 VCC3 Third stage amplifier bias. Connect to +5 V, 120 mA minimum DC supply. 7 VID1 Vendor identification. Short circuit typical. 15 VCC1 First stage amplifier bias. Connect to +5 V, 120 mA minimum DC supply. 8 VID2 Vendor identification. Open circuit typical. 16 GND Ground Table 2. SKY65370-11 Absolute Maximum Ratings Maximum Units Supply voltage Parameter VCC 5.5 V RF input power PIN +15 dBm Storage temperature TSTG –55 +150 °C Operating temperature TA –40 +100 °C Junction temperature TJ +150 °C Note: Symbol Minimum Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) 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 should be used at all times. Electrical and Mechanical Specifications The absolute maximum ratings of the SKY65370-11 are provided in Table 2. Electrical specifications are provided in Tables 3 through 6. The gain control logic is shown in Table 7. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 2 May 17, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201965A PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Table 3. SKY65370-11 Electrical Specifications (Note 1) (VDD = 5.0 V, TA = +25 °C, PIN = –25 dBm, f = 814 to 849 MHz, GC = 0 V, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units RF Specifications Noise Figure (Note 2) NF Gain = +35 dB Small signal gain |S21| PIN = –25 dBm, GC = 0 V Gain variation over frequency band PIN = –25 dBm Gain control range: High (BPC1 = 0, BPC2 = 1) Low (BPC1 = 1, BPC2 = 0) PIN = –25 dBm Gain repeatability, part to part PIN = –25 dBm Input return loss 0.8 dB 35 dB 0.9 dB 16 1 37 20 dB dB ±1.0 dB |S11| PIN = –25 dBm 25 dB Output return loss |S22| PIN = –25 dBm 23 dB Reverse isolation |S12| PIN = –25 dBm 70 dB 3 Order Input Intercept Point (Note 3) IIP3 Δf = 1 MHz, PIN = –25 dBm/tone, gain = +35 dB +6 dBm 1 dB Input Compression Point (Note 4) IP1dB Gain = +35 dB –8 dBm rd DC Specifications Supply voltage (VCC1, VCC2, VCC3) VCC 4.75 Quiescent supply current ICC VCC1, VCC2, VCC3 = +5 V Gain control voltage VGC +3 to +35 dB minimum gain range (0 V max gain) Bypass control voltage: High Low VBPC1 VBPC2 Switch control voltage for low/high gain bypass mode 5.00 365 0 2.6 0 5.25 V 430 mA +3.3 V 5.0 0.5 V V 3.3 Note 1: Performance is guaranteed only under the conditions listed in this Table. Note 2 Loss from the input SMA connector and Evaluation Board up to pin 1 has been de-embedded from the NF measurement. See Table 4 for full specifcation. Note 3: See Table 5 for full specification. Note 4: See Table 6 for full specification. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201965A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2012 3 PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Table 4. SKY65370-11 Electrical Specifications: Noise Figure (Note 1) (VDD = 5.0 V, TA = –40 to +65 °C, PIN = –25 dBm, f = 814 to 849 MHz, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) Parameter Noise Figure Symbol NF Test Condition Min Typical Gain = 3 to 6 dB Gain = 7 to 8 dB Gain = 9 to 10 dB Gain = 11 to 12 dB Gain = 13 to 14 dB Gain = 15 to 16 dB Gain = 17 to 18 dB Gain = 19 to 20 dB Gain = 21 to 22 dB Gain = 23 to 24 dB Gain = 25 to 26 dB Gain = 27 to 28 dB Gain = 29 to 30 dB Gain = 31 to 32 dB Gain = 33 to 34 dB Gain = 35 dB Max Units 22.70 20.70 18.70 16.70 14.70 12.80 10.80 8.80 6.80 5.30 3.50 2.40 2.10 1.60 1.35 1.15 dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB dB Note 1: Verified by characterization. Table 5. SKY65370-11 Electrical Specifications: IIP3 (Note 1) (VDD = 5.0 V, TA = –40 to +65 °C, PIN = –25 dBm/Tone, f = 814 to 849 MHz, Δf = 1 MHz Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) Parameter 3rd Order Input Intercept Point Symbol IIP3 Test Condition Gain = 30 to 35 dB Gain = 18 to 29 dB Gain = 12 to 17 dB Gain = 3 to 11 dB Min Typical Max +1 +3 +14 +18 Units dBm dBm dBm dBm Note 1: Verified by characterization. Table 6. SKY65370-11 Electrical Specifications: IP1dB (Note 1) (VDD = 5.0 V, TA = –40 to +65 °C, PIN = –25 dBm, f = 814 to 849 MHz, Characteristic Impedance [ZO] = 50 Ω, Unless Otherwise Noted) Parameter 1 dB Input Compression Point Symbol IP1dB Test Condition Gain = 30 to 35 dB Gain = 18 to 29 dB Gain = 12 to 17 dB Gain = 6 to 11 dB Gain = 3 to 6 dB Min Typical Max –14.0 –7.0 +4.0 +8.0 +10.5 dBm dBm dBm dBm dBm Note 1: Verified by characterization. Table 7. Gain Control Logic BPC1 (Pin 3) BPC2 (Pin 6) High gain 0 1 Low gain 1 0 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 4 Units May 17, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201965A PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Evaluation Board Description Package and Handling Information The SKY65370-11 Evaluation Board is used to test the performance of the SKY65370-11 LNA. An assembly drawing for the Evaluation Board is shown in Figure 3 and the layer detail is provided in Figure 4. The layer detail physical characteristics are noted in Figure 5. 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. An Evaluation Board schematic diagram is provided in Figure 6. Table 7 provides the Bill of Materials (BOM) list for Evaluation Board components. Package Dimensions The PCB layout footprint for the SKY65370-11 is provided in Figure 7. Package dimensions for the 16-pin MCM are shown in Figure 8, and tape and reel dimensions are provided in Figure 9. The SKY65370-11is 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 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. Figure 3. SKY65370-11 Evaluation Board Assembly Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201965A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2012 5 PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Layer 1: Top – Metal Layer 2: Ground Layer 3: Signal Layer 4: Solid Ground Plane S2795 Figure 4. SKY65370-11 Evaluation Board Layer Detail Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 6 May 17, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201965A PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Figure 5. Layer Detail Physical Characteristics Figure 6. SKY65370-11 Evaluation Board Schematic Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201965A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2012 7 PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Table 7. SKY65370-11 Evaluation Board Bill of Materials Component Size Value Vendor Part Number *** TBD *** Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 8 May 17, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201965A PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Figure 7. SKY65370-11 PCB Layout Footprint (Top View) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201965A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2012 9 PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Figure 8. SKY65370-11 16-Pin MCM Package Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 10 May 17, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201965A PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Figure 9. SKY65370-11 Tape and Reel Dimensions Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com 201965A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 17, 2012 11 PRELIMINARY DATA SHEET • SKY65370-11 HIGH LINEARITY, ACTIVE BIAS LNA Ordering Information Model Name SKY65370-11 LNA Manufacturing Part Number SKY65370-11 Evaluation Board Part Number TW19-D620 Copyright © 2012 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. 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