FM8545

富满微电子集团股份有限公司 FM8545 FINE MADE MICROELECTRONICS GROUP CO., LTD. (文件编号：S&CIC2066) Antenna Tuning Switch Features designed for high performance antenna tuning ⚫ Very Linear Performance applications. All RF path performance is ⚫ Off Ports, ‘open Type’ enhanced with ultra-low on state resistance and ⚫ Two pin GPIO control Interface for standard off state capacitance. FM8545 allows the SP4T operation creation of advanced tuning topologies to ⚫ Very Small 1.1mm x 1.5mm maximize TRP & TIS performance in space ⚫ Very low profile, 0.5mm constrained applications. ⚫ Ultra-Low On-resistance, 1.0 Ω ⚫ The FM8545 SP4T tuner is provided in a Applications compact QFN 1.1mm x 1.5mm x 0.5mm ⚫ Antenna Tuning package. A functional block diagram is shown ⚫ Band Switching in Figure 1. The pin configuration and package ⚫ Impedance Tuning are shown in Figure 2. Signal pin assignments and functional pin description are provided in Table 1. Description ⚫ The FM8545 is very low loss SP4T specifically RF1 RFC RF3 1 10 9 RF2 2 GND 3 GPIO Logic&Control 4 VDD 5 8 RF4 7 GND 6 VCTL1 VCTL2 Figure 1. FM8545 Block Diagram Version 1.2 Page 1 Copyright©2021, ShenZhen FM Co.ltd 富满微电子集团股份有限公司 FM8545 FINE MADE MICROELECTRONICS GROUP CO., LTD. (文件编号：S&CIC2066) Antenna Tuning Switch 1 10 9 Top View 2 8 3 7 4 5 6 Figure 1. FM8545 Pinout – 10-Pin QFN (Top View) Table 1. FM8545 Signal Descriptions Pin# Name Details 1 RF1 RF port 1. 2 RF2 RF port 2. 3 GND Ground 4 VDD Voltages Supply 5 CTL1 Control Voltage 1. 6 CTL2 Control Voltage 2. 7 GND Ground 8 RF4 RF port 4 9 RF3 RF port 3 10 RFC RF Common port. Table 2. FM8545 Absolute Maximum Ratings Rating Unit Supply Voltage, VDD Parameter +4.8 V Control Voltage, VCTL +3.3 V 60 VP Max voltage between any combination of RF ports or ground VRF, VDD = 2.85VDC, VCTL1/2 = 0/1.8VDC, Temp = 25℃ @20% DC Max Input Power between any combination of RF ports or ground VRF, VDD = 2.85VDC, VCTL1/2 = 0/1.8VDC, Temp = 25℃ @20% DC Operating Case Temperature 43 dBm -40 to +90 ℃ Storage Temperature -55 to +150 ℃ kV ESD ALL Pins, HBIM, JESD22-A114 Version 1.2 2.0 Page 2 Copyright©2021, ShenZhen FM Co.ltd 富满微电子集团股份有限公司 FM8545 FINE MADE MICROELECTRONICS GROUP CO., LTD. (文件编号：S&CIC2066) Antenna Tuning Switch Table 3. FM8545 General Electrical Specifications (Active Mode VDD = 2.85V,CTL=0/1.8V,Temp= +25 °C, Characteristic Impedance [ZO] = 50 Ω) Parameter Operating Frequency Supply Voltage VDD Supply Current IDD Control Voltage High VCLT1， VCLT2 Control Voltage Low VCLT1， VCLT2 Control Current ICTL Specification Min Typ Max 700 2.4 Unit 2.85 85 2700 4.2 130 MHz V μA 1.3 1.8 2.7 V 0 0 0.45 V 0.01 Conditions μA VCTL = 1.8V Table 4. FM8545 Control Logic Logic State 1 2 3 4 Mode CLT1 CLT2 Active Active Active Active VLOW VLOW VLOW VHIGH_CTL VLOW VHIGH_CTL VHIGH_CTL VHIGH_CTL State Description RFC to RF1 ON RFC to RF2 ON RFC to RF3 ON RFC to RF4 ON RF Applied Yes Yes Yes Yes Table 5. FM8545 Electrical Specification (Active Mode VDD = 2.85V,CTL=0/1.8V,Temp= +25 °C, Characteristic Impedance [ZO] = 50 Ω) Parameter Insertion Loss (RFC to RFX) X=1,2,3,4 Isolation (RFC to RFX) X=1,2,3,4 Isolation (RFX to RFX) X=1,2,3,4 Return Loss Logic States 1,2,3 & 4 Version 1.2 Specification Min Typ Max 0.35 0.45 0.45 0.65 0.65 0.95 20 25 15 21 12 16 22 26 18 21 12 19 18 23 13 15 Page 3 Unit dB dB dB dB dB dB dB dB dB dB dB Conditions 700 – 915 MHz 915 – 1910 MHz 1910 – 2700 MHz 700 – 915 MHz 915 – 1910 MHz 1910 – 2700 MHz 700 – 915 MHz 915 – 1910 MHz 1910 – 2700 MHz 915 MHz 1910 MHz Copyright©2021, ShenZhen FM Co.ltd 富满微电子集团股份有限公司 FM8545 FINE MADE MICROELECTRONICS GROUP CO., LTD. (文件编号：S&CIC2066) Antenna Tuning Switch Table 6. FM8545 ELecctrical Specification (Active Mode VDD = 2.85V,CTL=0/1.8V,Temp= +25 °C, Characteristic Impedance [ZO] = 50 Ω) Parameter RON (RFC to RF1/RF2/RF3/RF4) Coff (RFC to RF1/RF2/RF3/RF4) Input 0.1dB compression point Second Harmonics Specification Min Typ Max Unit Conditions 1.0 1.5 Ω Switch On path 150 170 fF Switch Off path dBm 700 to 2690MHz, CW, RFC to RF1/RF2/RF3/RF4 +43 -73 -68 dBm Third Harmonics -75 -68 dBm Second Harmonics Third Harmonics Second Harmonics Third Harmonics -63 -68 -63 -70 -55 -58 -55 -60 dBm dBm dBm dBm 824 to 915MHz, Pin = 35 dBm Start Up Time 10 20 μS On switching speed OFF Switching Speed 4 4 5 5 μS μS 10% VDD ramp up to 90% of final RF amplitude 50% VCTL to 90% RF 50% VCTL to 10% RF Version 1.2 Page 4 700 to 2690MHz, Pin = 26 dBm 1710 to 1910MHz, Pin = 33 dBm Copyright©2021, ShenZhen FM Co.ltd 富满微电子集团股份有限公司 FM8545 FINE MADE MICROELECTRONICS GROUP CO., LTD. (文件编号：S&CIC2066) Antenna Tuning Switch Handling Information FM8545 application schematic is shown in Figure 3. Component value is shown in Table 9. (Note1) J5 Cortrol impedance 50 ohms RFC 10 GND RFC U1 FM1694B J1 J3 1 Cortrol impedance 50 ohms RF2 GND VDD RF2 RF4 GND GND VDD VC2 4 GND 100pf NP R1 0 C1 GND Cortrol impedance 50 ohms 8 J4 Cortrol impedance 50 ohms 7 C2 GND RF3 GND RF4 6 GND VC1 J2 GND 2 Cortrol impedance 50 ohms 3 RF3 GND R3 0 5 RF1 9 RF1 R2 0 C4 NP GND VC2 C3 NP VC1 GND P1 1 3 5 7 2 4 6 8 VDD VC1 VC2 HDR_2X4 GND GND Figure 3. FM8545 Application Schematic Version 1.2 Page 5 Copyright©2021, ShenZhen FM Co.ltd 富满微电子集团股份有限公司 FM8545 FINE MADE MICROELECTRONICS GROUP CO., LTD. (文件编号：S&CIC2066) Antenna Tuning Switch Package Dimensions Figure 4. FM8545 10-Pin QFN Package Dimensions Version 1.2 Page 6 Copyright©2021, ShenZhen FM Co.ltd