SKY : 860 to 930 MHz RF Front-End Module

Transcription

1 DATA SHEET SKY78-: 80 to 90 MHz RF Front-End Module Applications Smart meters In-home appliances Smart thermostats Features Integrated LNA with programmable gain Integrated antenna switching with transmit/receive diversity function Low FEM noise figure:. db typical Fast turn-on/turn-off time: < μs.0 to.8 V supply operation Sleep mode current: < μa Small QFN (-pin, x mm) package (MSL, 0 C per JEDEC J-STD-00) Skyworks Green TM products are compliant with all applicable legislation and are halogen-free. For additional information, refer to Skyworks Definition of Green TM, document number SQ TX_IN TX_FLT TR LNA LNA_IN RX_FLT ANT_SEL Logic Control Figure. SKY78- Block Diagram Y09 ANT ANT Description The SKY78- is a high-performance, highly integrated frontend module (FEM) designed for low power ISM band applications operating in the 80 to 90 MHz band. The device is designed for ease of use and maximum flexibility, with fully matched 0 Ω input and output, and digital controls compatible with. to. V CMOS levels. The RF blocks operate over a wide supply voltage range from.0 to.8 V, which allows the SKY78- to be used in battery powered applications over a wide spectrum of the battery discharge curve. The device is provided in a x mm, -pin Quad Flat No-Lead (QFN) package. A functional block diagram is shown in Figure. The pin configuration and package are shown in Figure. Signal pin assignments and functional pin descriptions are provided in Table. 00D Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 9, 0

2 VCC 0 9 TX_IN TX_FLT ANT TR ANT_SEL GND LNA_IN RX_FLT ANT S Figure. SKY78- Pinout -Pin QFN (Top View) Table. SKY78- Signal Descriptions Pin Name Description Pin Name Description Shutdown control pin Not connected internally Not connected internally ANT Antenna port Receive path select control input Not connected internally Transmit enable control input TX_IN Transmit signal to antennas (from external) TX_FLT Transmit signal from TR port Not connected internally TR Common receive/transmit port Not connected internally 7 ANT_SEL Antenna select control input 9 Not connected internally 8 GND Ground 0 Not connected internally 9 LNA_IN LNA input (from receive filter) Not connected internally 0 Not connected internally Not connected internally RX_FLT Receive signal from antennas (to receive filter) VCC Positive power supply ANT Antenna port Not connected internally July 9, 0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 00E

3 Electrical and Mechanical Specifications The absolute maximum ratings of the SKY78- are provided in Table. The recommended operating conditions are specified in Table. Electrical specifications are provided in Tables to 8. The state of the SKY78- is determined by the logic provided in Table 9. Table 0 provides the logic for the two antenna ports. Table. SKY78- Absolute Maximum Ratings (Note ) Parameter Symbol Minimum Maximum Units Supply voltage (no RF) VCC 0.. V Transmit input power at TX_IN port PIN_TX_MAX + dbm Transmit input power at TR port (Note ) PIN_TR_MAX +0 dbm Receive input power at ANT or ANT ports PIN_RX_MAX +0 dbm Voltage Standing Wave Ratio VSWR 0: Operating temperature TA 0 +8 C Storage temperature TSTG 0 + C Electrostatic discharge: Charged Device Model (CDM), Class Human Body Model (HBM), Class C Machine Model (MM), Class A ESD V V V Note : 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. Note : PIN_TR_MAX = + dbm at worst case where VSWR = 0:. 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. Table. SKY78- Recommended Operating Conditions Parameter Symbol Minimum Typical Maximum Units Supply voltage VCC V Operating temperature TA C 00E Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 9, 0

4 Table. SKY78- Electrical Specifications: DC Characteristics (Note ) (VCC = V, TA = + C as Measured on Evaluation Board [Not De-Embedded to Device], Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Total supply current ICQ_TX ICQ_RX_LOWGAIN ICQ_RX_HIGHGAIN Transmit mode Receive low gain mode Receive high gain mode 0 8 μa ma ma Sleep supply current ICC_OFF Sleep mode μa Note : Performance is guaranteed only under the conditions listed in this table. Table. SKY78- Electrical Specifications: Transmit Characteristics (Note ) (VCC = V, TA = + C as Measured on Evaluation Board [Not De-Embedded to Device], All Unused Ports Terminated with 0 Ω, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Frequency f MHz Insertion loss S TR to ANT and ANT. db Input return loss S Measured at TR 0 db Output return loss S Measured at ANT and ANT 0 db Turn-on time ton From 0% of edge to 90% of final RF output power μs Turn-off time (Note ) toff From 0% of edge to 0% of final RF output power μs Note : Performance is guaranteed only under the conditions listed in this table. Note : must remain high for 00 ns after is set low. Table. SKY78- Electrical Specifications: Receive Characteristics ( of ) (Note ) (VCC = V, TA = + C as Measured on Evaluation Board [Not De-Embedded to Device], All Unused Ports Terminated with 0 Ω, Input Port ANT or ANT, Output Port TR, 0 Ω Connected Between the RX_FLT and LNA_IN Pins in Lieu of External Filters, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Frequency f MHz Receive low gain mode 900 to 90 MHz and 80 to 870 MHz, = logic, = = logic 0 db Receive high gain mode 900 to 90 MHz and 80 to 870 MHz, = = logic, = logic 0 db July 9, 0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 00E

5 Table. SKY78- Electrical Specifications: Receive Characteristics ( of ) (Note ) (VCC = V, TA = + C as Measured on Evaluation Board [Not De-Embedded to Device], All Unused Ports Terminated with 0 Ω, Input Port ANT or ANT, Output Port TR, 0 Ω Connected Between the RX_FLT and LNA_IN Pins in Lieu of External Filters, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Receive noise figure, low-gain mode 900 to 90 MHz and 80 to 870 MHz, = logic, = = logic 0.7. db Receive noise figure, high-gain mode 900 to 90 MHz and 80 to 870 MHz, = = logic, = logic 0. db db input compression point, low-gain mode db input compression point, high-gain mode IPdBLG 900 to 90 MHz and 80 to 870 MHz, = logic, = = logic to 90 MHz and 80 to 870 MHz, = = logic, = logic 0 dbm Antenna port return loss 900 to 90 MHz and 80 to 870 MHz, into 0 Ω, ANT and ANT ports db TR port return loss in receive mode 900 to 90 MHz and 80 to 870 MHz, into 0 Ω db Turn-on time ton From 0% of edge to 90% of final RF output power μs Turn-off time toff From 0% of edge to 0% of final RF output power μs Note : Performance is guaranteed only under the conditions listed in this table. Table 7. SKY78- Electrical Specifications: Diversity Antenna Characteristics (Note ) (VCC = V, TA = + C, f = 900 to 90 MHz and 80 to 870 MHz, as Measured on Evaluation Board [De-Embedded to Device], All Unused Ports Terminated with 0 Ω, Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Isolation between ANT and ANT ports ISOANTSW 0 db Isolation between TX_IN and TR ports ISORXTX 0 db Insertion loss from TX_IN to ANT TX_ANT 0.9 db Insertion loss from TX_IN to ANT TX_ANT 0.9 db Insertion loss from ANT to RX_FILT RX_ANT 0.9 db Insertion loss from ANT to RX_FILT RX_ANT 0.9 db Antenna to antenna switching time, transmit mode Antenna to antenna switching time, receive mode tant/ant_tx tant/ant_rx Note : Performance is guaranteed only under the conditions listed in this table. 90 ns 800 ns 00E Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 9, 0

6 Table 8. SKY78- Electrical Specifications: Logic Characteristics (Note ) (TA = + C as Measured on Evaluation Board [De-Embedded to Device], Unless Otherwise Noted) Parameter Symbol Test Condition Min Typical Max Units Voltage logic input: High Low VIH VIL. 0 Vcc (Note ) 0. V V Note : Performance is guaranteed only under the conditions listed in this table. Note : For ANT_SEL, the maximum voltage is. V. Table 9. SKY78- Mode Logic Truth Table (Note ) Mode (Pin ) (Pin ) Sleep (all off) Receive low gain 0 0 Receive high gain 0 Transmit X Shutdown (Note ) 0 0 Shutdown (Note ) 0 0 Shutdown (Note ) 0 Note : See Table 8 for logic voltage levels. X = don t care (Pin ) Note : Expect approximately μa through each control pin that has logic high. For true sleep mode, set,, and low. Table 0. SKY78- Antenna Port Logic Truth Table Mode (Pin ) (Pin ) (Pin ) ANT_SEL (Pin 7) ANT port enabled X X X 0 ANT port enabled X X X Note : See Table 8 for logic voltage levels. X = don t care Evaluation Board Description The SKY78- Evaluation Board is used to test the performance of the SKY78- FEM. An Evaluation Board schematic diagram is shown in Figure. Table provides the Bill of Materials (BOM) list for Evaluation Board components. A photograph of the Evaluation Board is shown in Figure. Evaluation Board Setup Procedure. Connect J, J, and J to 0 Ω instruments. If applicable, terminate all unused ports with 0 Ω.. Connect the supply ground to pin of the J header.. Connect. V to pin or of the J header. Refer to Tables 9 and 0 for path selection logic. Transmit Performance. The 80 MHz to 90 MHz (depending on the region) amplifier performance is monitored by applying an RF signal to J (TX_IN) and measuring the output power on J (ANT) or J (ANT). If use of the TR port is desired, the RF signal first enters connector J (TR), exits connector J (TX_FLT) through an external PA and filter or is directly shorted to connector J (TX_IN) then passed to either J (ANT) or J (ANT). Receive Performance. The 80 MHz to 90 MHz LNA performance is monitored by applying an RF signal to J (ANT) or J (ANT) and measuring the output signal on J (TR). CAUTION: Care should be taken not to overdrive the device by applying too much RF on the input. A suitable starting input power is 0 dbm. July 9, 0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 00E

7 J C 0 nf C pf L 0 Ω C.7 μf VDD ANT_SEL VCC VDD 0 9 Transmit Transmit/Receive J J TX_FLT TR VCC ANT_SEL GND LNA_IN RX_FLT ANT TX_IN ANT L8.8 nh C. pf L.8 nh J J Transmit from Ext to Ant Antenna Port ANT_SEL R 0 Ω L9.8 nh C. pf L7.8 nh J Antenna Port Note: Some component labels may be different from the corresponding component symbol shown here. Component values, however, are accurate as of the date of this data sheet. Figure. SKY78- Evaluation Board Schematic Diagram S Table. SKY78- Evaluation Board Bill of Materials Component Value Size Manufacturer Mfr Part Number Description C 0 nf 00 Murata GRMR7E0KA0 Multilayer ceramic capacitor C pf 00 Murata GRMCH0JZ0 Multilayer ceramic capacitor C.7 μf 00 Murata GRM8R0J7KE9 Multilayer ceramic capacitor C, C. pf 00 Murata GRMCHRCZ0 Multilayer ceramic capacitor J, J, J, J, J SMA End launch Johnson Components SMA end launch straight jack receptacle, tab contact J 0x 00 mil Samtec TSW-0-07-G-D 00 mil header L 0 Ω 00 Panasonic ERJGE0R00 Thick film chip resistor L, L7, L8, L9.8 nh 00 Murata LQGHNN8S00D High frequency multilayer inductor R 0 Ω 00 Panasonic ERJGEJ0R0 Thick film chip resistor 00E Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 9, 0 7

8 Figure. SKY78- Evaluation Board Package Dimensions The PCB layout footprint for the SKY78- is shown in Figure. Typical part markings are noted in Figure. Package dimensions for the -pin QFN are shown in Figure 7, and tape and reel dimensions are provided in Figure 8. Package and Handling Information 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 SKY78- is rated to Moisture Sensitivity Level (MSL) at 0 C. It can be used for lead or lead-free soldering. For additional information, refer to the Skyworks Application Note, Solder Reflow Information, document number 00. 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. 8 July 9, 0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 00E

9 .0.70 X.0 X 0. 0 X 0. X X.0 X 0. X 0. X Typ Typ Typ. Board Metal Via Pattern (Note ).0.00 Typ. 0.0 Typ. 0 9 X Typ. 0.0 Typ Typ. 0.0 Typ. Component 0. Typ Typ. Outline 0. Typ Typ % solder coverage on center pad Solder Mask Pattern (Note ) Stencil Pattern (Note ) NOTES:. Via hole recommendations: 0.0 mm Cu via wall plating (minimum), soldermask on the far side should tent or plug via holes.. Soldermask recommendations: Contact board fabricator for recommended soldermask offset and tolerance.. Stencil recommendations: 0. mm stencil thickness, laser cut apertures, trapezoidal walls and rounded corners offer better paste release. Dimension and tolerancing according to ASME Y.M-99. Unless specified, dimensions are symmetrical about center lines. All dimensions are in millimeters. S Figure. SKY78- PCB Layout Footprint 00E Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 9, 0 9

10 Skyworks Part Number Y9 Lot Code Date Code: YY = Calendar Year WW = Week CC = Country Code Figure. Typical Part Marking X B 0.80 ± C.000 ± 0.00 A 0.0 M C A B See Note 0.0 Ref ± x 0.0 M C A B R0.0 Typ..000 ± ± X 0. C C Seating Plane X 0.0 ± M C A B 0.0 M C X 0.00 ± 0.00 Top View Side View Bottom View NOTES:. All measurements are in millimeters.. Dimensioning and tolerancing according to ASME Y.M-99. Unless otherwise specified the following values apply: Decimal Tolerance: Angular Tolerance: X.X ( place) ± 0. mm ± X.XX ( places) ± 0.0 mm X.XXX ( places) ± 0.0 mm. Terminal # identification mark located within marked area.. Unless specified, dimensions are symmetrical about center lines. S0 Figure 7. SKY78- -Pin QFN Package Dimensions 0 July 9, 0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 00E

11 8.0 ± ± 0.0 ø. ± 0..0 (Note ).0 ± ± 0..7 ± 0.. ± 0.. ± 0.0. ± 0.. ± 0. Pin Location Notes:. 0 sprocket hole pitch cumulative tolerance ±0... Camber in compliance with EIA-8.. All measurements are in millimeters. Figure 8. SKY78- Tape and Reel Dimensions S 00E Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 9, 0

12 Ordering Information Model Name Manufacturing Part Number Evaluation Board Part Numbers SKY78-: RF FEM SKY78- SKY78--EK Copyright 0-0 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 and the Skyworks symbol 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 are incorporated by reference. July 9, 0 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 00E