BL-模拟开关.pdf

BL1551Single SPDT Analog Switch -1-Total 10 Pages 2.7 Low Voltage SPDT Analog Switch in 6-pin SOT363 Features?Wide Power Supply Range:1.8V to 5.5V?High Bandwidth:300MHz?High Off-Isolation:84dB at 1MHz 51dB at 10MHz?On-Resistance:2.7(typ)at 5.0V?Fast Switching Time ton=12.0ns;toff=5.0ns?TTL/CMOS Compatible?Break-Before-Make Switching?Rail-to-Rail Signal Range?Operation Temperature Range:-40 to 85?Lead(Pb)Free SOT363-6 Package Applications?Wireless Handsets?MP3 Players?Portable Electronic Devices?Relay Replacement?PDAs?Audio&Video Signal Routing?PCMCIA Cards?Computer Peripherals?Modems Pin Configuration 6 6 6 65 5 5 54 4 4 4E NB VCCBASSS1 1 1 12 2 2 23 3 3 3A1GNDA2 Description The BL1551 is a Single Wide-Bandwidth,fast single-pole double-throw(SPDT)CMOS switch featuring an On-Resistance of 2.7 ohm at VCC=5.0V and wide power supply range from 1.8V to 5.5V.It can be used as an analog switch or as a low-delay bus switch.The 300MHz high bandwidth performance supports the high frequency application.Break-before-make function for both parts eliminates signal disruption during switching from preventing both switches being enabled simultaneously.Block Diagram 1 1 1 12 2 2 23 3 3 36 6 6 65 5 5 54 4 4 4BL1551A1GNDA2E NBVCCB Function Table ENB Function 1 A1 Connected to B 0 A2 Connected to B Pin Description Pin Name Type Description VCC PWR Power Supply GND Ground Ground B Input/Output Data Port A1 Input/Output Data Port A2 Input/Output Data Port ENB Input Logic Control Signal SSS:production id BL1551Single SPDT Analog Switch -2-Total 10 Pages ABSOLUTE MAXIMUM RATINGS Parameter Symbol Min Max Units DC Supply Voltage VCC-0.3 6 V DC Switch Voltage VA1/VA2/VB-0.3 VSUP+0.3 V DC Input Voltage VENB-0.3 VSUP+0.3 V Continuous Current I(A1/A2/B)-200+200 mA Peak Current(1)IPEAK(A1/A2/B)-300+300 mA Operating Temperature Range TA-40 85 Notes:(1)Pulsed at 1ms,50%duty circle (2)Stress beyond above listed“Absolute Maximum Ratings”may lead permanent damage to the device.These are stress ratings only and operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not implied.Exposure to absolute maximum rating conditions for extended periods may affect device reliability.(3)Control input(VENB)must be held HIGH or LOW,and mustnt be floated.RECOMMENDED OPERATING CONDITIONS DC Supply Voltage(VCC).1.8V to 5.5V Switch Input Voltage(VS).0V to VCC Control Input Voltage(VENB).0V to VCC Operation Temperature(TA).-40 to+85 ORDERING INFORMATION MODEL PIN-PACKAGE SPECIFIED TEMPERATURE RANGE PACKAGE MARKING PACKAGE OPTION BL1551 SOT363-6-40 C to+85 C Asss (1)Tape and Reel,3000 WHERE(1):“sss”IS 3 DIGITS PRODUCTION ID SIZE OF ALL OTHER CHARACTERS=20 mil COLOUR:LASER MARKING BL1551Single SPDT Analog Switch -3-Total 10 Pages DC ELECTRICAL CHARACTERISTICS +2.7V Supply Guaranteed Limit Parameter Symbol Conditions Min.Typ.(1)Max.Unit Analog Switch Analog Signal Range VA1/VA2/VB 0 VCC V A1 On-Resistance RON(A1)VCC=2.7V;IB=-10mA;VA1=1.5V 5.5 A2 On-Resistance RON(A2)VCC=2.7V;IB=-10mA;VA2=1.5V 5.5 A1 On-Resistance Flatness(2)RFLAT(A1)VCC=2.7V;IB=-10mA;VA1=1.5V 2.3 A2 On-Resistance Flatness(2)RFLAT(A2)VCC=2.7V;IB=-10mA;VA2=1.5V 2.3 On-Resistance Match Between Channels(3)RON VCC=2.7V;IB=-10mA;VA2/VA1=1.5 0.15 1 A1 or A2 Off Leakage Current IOFF(A1)or IOFF(A2)VCC=3.6V;VA1 or VA2=3V,0.3V;VB=0.3V,3 V 0.01 1 uA B On Leakage Current ION(B)VCC=3.6V;VA1 or VA2=3.3V,0.3V;VB=0.3V,3.3 V or floating 0.01 1 uA Digital I/O Input Voltage High VIH Minimum High Level Input Voltage 1 V Input Voltage Low VIL Maximum Low Level Input Voltage 0.5 V Input Leakage Current IENB VENB=0 or Vcc 0.01 1 uA Note:(1)Typical characteristics are at+3V supply and +25 C(2)Flatness is defined as the difference between the maximum and minimum value of on resistance as measured over the specified analog signal ranges.(3)RON=RON(MAX)-RON(MIN),between A1 and A2.BL1551Single SPDT Analog Switch -4-Total 10 Pages DYNAMIC CHARACTERISTICS +2.7V Supply Guaranteed Limit Parameter Symbol Conditions Min.Typ.(1)Max.Unit AC ELECTRICAL CHARACTERISTICS Turn-On Time tON VCC=2.7V;VA1 or VA2=1.5V,RL=300;CL=35pF,VIH=1.5V,VIL=0V 17.0 ns Turn-Off Time tOFF VCC=2.7V;VA1 or VA2=1.5V,RL=300;CL=35pF,VIH=1.5V,VIL=0V 9.0 ns Break-Before-Make Time tBBM VCC=2.7V;VA1 or VA2=1.5V,RL=300;CL=35pF 15.0 ns NC OFF Capacitance COFF(A1)f=1MHz 5.5 pF NO OFF Capacitance COFF(A2)f=1MHz 5.5 pF NC ON Capacitance CON(A1)f=1MHz 15.5 pF NO ON Capacitance CON(A2)f=1MHz 15.5 pF ADDITIONAL APPLICATION CHARACTERISTICS 3dB Bandwidth f3dB Signal=0dBm,RL=50,CL=5pF 300 MHz f=1MHz -84 dB Off Isolation(2)VIso RL=50,CL=5pF,Signal=0dBm f=10MHz -51 dB Supply Power Supply Range Vcc 1.8 5.5 V Note:(1)Typical characteristics are at+3V supply and 25 C(2)Off Channel Isolation=20log10(VA1A2)/VB BL1551Single SPDT Analog Switch -5-Total 10 Pages DC ELECTRICAL CHARACTERISTICS +5.0V Supply Guaranteed Limit Parameter Symbol Conditions Min.Typ.(1)Max.Unit Analog Switch Analog Signal Range VA1/V。