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Technical content

Features

 FSA4157A Features Lower ICC when the S Input is Lower Than VCC  Maximum 1.15Ω On Resistance (RON) at 4.5V VCC  0.3Ω Maximum RON Flatness at 4.5V VCC  Space-Saving 6-lead, MicroPak™ and SC70 6 Packages  Broad VCC Operating Range: – FSA4157: 1.65V to 5.5V – FSA4157A: 2.7V to 5.5V  Fast Turn-On and Turn-Off Time  Break-Before-Make Enable Circuitry  Over-Voltage Tolerant TTL-Compatible Control Circuitry

Description

FSA4157 and FSA4157A are high performance Single Pole/Double Throw (SPDT) analog switches. Both devices feature ultra low R ON of 1.15Ω maximum at 4.5V VCC and operates over the wide V CC range of 1.65V to 5.5V for FSA4157, and 2.7V to 5.5V for FSA4157A. The device is fabricated with sub-micron CMOS technology to achieve fast switching speeds and is designed for break-before-make operation. The select input is TTL level compatible. The FSA4157A features very low quiescent current even when the control voltage is lower than the V CC supply. This feature services the mobile handset applications very well allowing for the direct interface with baseband processor general purpose I/Os.

Ordering Information

Mark Package Description Packing Method FSA4157P6X A57 6-Lead SC70, EIAJ SC88, 1.25mm Wide 3000 Units Tape and Reel FSA4157L6X EG 6-Lead MicroPak,™ 1. 0mm Wide 5000 Units Tape and Reel FSA4157AP6X B57 6-Lead SC70, EIAJ SC88, 1.25mm Wide 3000 Units Tape and Reel FSA4157AL6X EU 6-Lead MicroPak™, 1. 0mm Wide 5000 Units Tape and Reel

Figure 1. SC70 Pin Assignments Figur e 2. MicroPak™ Pin Assignments

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA4157 • FSA4157A Rev. 1.0.7 3 FSA4157, FSA4157A — Low-Voltage, 1Ω SPDT Analog Switch Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The devic e may not function or be operable above the recommended operating c onditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Min. Max. Unit VCC Supply Voltage -0.5 6.0 V VS DC Switch Voltage (1) -0.5 V CC + 0.5 V VIN DC Input Voltage (1) -0.5 6.0 V IIK DC Input Diode Current -50 mA ISW Switch Current 200 mA ISWPEAK Peak Switch Current (Pulse at 1ms duration, <10% Duty Cycle) 400 mA PD Power Dissipation at 85°C SC70 180 mW MicroPak™ TSTG Storage Temperature Range -65 +150 °C TJ Maximum Junction Temperature +150 °C TL Lead Temperature (Soldering, 10 seconds) +260 °C ESD Electrostatic Discharge Capability Human Body Model, JESD22-A114 (FSA4157A) 7500 V Note: 1. Input and output negat ive ratings may be exceeded if input and output diode current ratings are observed. Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device oper ation. Recommended operating conditions are specified to ens ure optimal performance to the datasheet specificat ions. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol Parameter Min. Max. Unit VCC Supply Voltage FSA4157 1.65 5.50 V FSA4157A 2.7 5.5 VCNTRL Control Input Voltage (2) 0 V CC V VSW Switch Input Voltage 0 V CC V TA Operating Temper ature -40 +85 °C θJA Thermal Resistance in Still Air SC70 350 °C/W MicroPak™ (Estimated) 330 Note: 2. Control input must be held HIGH or LOW and it must not float.

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA4157 • FSA4157A Rev. 1.0.7 4 FSA4157, FSA4157A — Low-Voltage, 1Ω SPDT Analog Switch Typical values are at 25°C unless otherwise specified. Symbol Parameter Conditions V CC(V) Ambient Temperature Units-25° -40 to +85°C VIH Input Voltage High FSA4157 Only 1.8 to 2.7 1.0 V 2.7 to 3.6 2.0 4.5 to 5.5 2.4 VIL Input Voltage Low FSA4157 Only 1.8 to 2.7 0.4 V FSA4157A Only 2.7 to 3.6 0.4 2.7 to 3.6 0.6 4.5 to 5.5 0.8 IIN Control Input Leakage VIN=0V to VCC 2.7 to 3.6 -1.0 1.0 µA INO(OFF), INC(OFF) Off Leakage Current of Port B0 and B1 A=1V, 4.5v, B 0 or B1=4.5, 1V 5.5 -2 2 -20 20 nA IA(ON) On Leakage Current of Port A A=1V, 4.5v, B0 or B1=4.5, 1V,4.5V or Floating 5.5 -4 4 -40 40 nA RON Switch On Resistance IOUT=100mA, Ω IOUT=100mA, ΔRON On Resistance Matching Between Channels (4) IOUT=100mA, RFLAT(ON) On Resistance Flatness(4) IOUT=100mA, B0 or Ω IOUT=100mA, B0 or BI =0V, 1V, 2V 4.5 0.2 0.3 0.4 ICC Quiescent Supply Current VIN=0V or VCC, IOUT=0V 3.6 0.1 0.5 1.0 µA 5.5 0.1 0.5 1.0 ΔICC Increase in ICC per Input One Input at 2.7V, others at VCC or GND (FSA4157A Only) 4.3 0.2 10.0 µA Notes: 3. Measured by the voltage drop between the A and B pins at the indicated current through the switch. On resistance is determined by the lower of the voltage on the two (A or B ports). 4. ΔRON = RON max – RON min measured at identical VCC, temperature, and voltage. 5. Flatness is defined as the diffe rence between the maximum and minimum value of on resistance over the specified range of conditions.

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA4157 • FSA4157A Rev. 1.0.7 5 FSA4157, FSA4157A — Low-Voltage, 1Ω SPDT Analog Switch Typical values are at 25°C unless otherwise specified. Symbol Parameter Conditions V CC(V) Ambient Temperature Units Figure -25° -40 to +85°C tON Turn-On Time B0 or B1=1.5V, RL=50Ω, CL=35pF (FSA4157A Only) 2.7 to 3.6 60 65 ns Figure 8 B0 or B1=1.5V, RL=50Ω, CL=35pF 2.7 to 3.6 50 60 B0 or B1=1.5V, RL=50Ω, CL=35pF 4.5 to 5.5 35 40 tOFF Turn-Off Time B0 or B1=1.5V, RL=50Ω, CL=35pF 2.7 to 3.6 20 30 ns Figure 8 B0 or B1=1.5V, RL=50Ω, CL=35pF 4.5 to 5.5 15 20 tBBM Break- Before-Make Time FSA4157 2.7 to 3.6 ns Figure 9 4.5 to 5.5 20 FSA4157A Only 4.5 to 5.5 25 Q Charge Injection CL=1.0nF, VGE=0V, RGEN=0Ω 2.7 to 3.6 10 pC Figure 11 4.5 to 5.5 20 OIRR Off Isolation f=1MHz, RL=50Ω 2.7 to 3.6 -70 dB Figure 10 4.5 to 5.5 -70 Xtalk Crosstalk f=1MHz, RL=50Ω 2.7 to 3.6 -70 dB Figure 10 4.5 to 5.5 -70 BW -3db Bandwidth RL=50Ω 2.7 to 3.6 300 MHz Figure 13 4.5 to 5.5 300 THD Total Harmon Distortion R L=600Ω, VIN=0.5 f=20Hz to 20kHz 2.7 to 3.6 0.002 % Figure 4.5 to 5.5 0.002 Capacitance Symbol Parameter Condition s VCC (V) Ambient Temperature -25° Units Figure Min. Typ. Max. CIN Control Pin Input Capacitance f=1MHz 0 3.5 pF Figure COFF B Port Off Capacitance f= 1MHz 4.5 12.0 pF Figure CON On Capacitance f=1MHz 4.5 40.0 pF Figure

0.50 MIN

B) ALL DIMENSIONS ARE IN MILLIMETERS.

0.40 MIN

Figure 15. 6-Lead, SC70, EIAJ SC88 1.25mm Wide Package specifically the warranty therein, which covers Fairchild products. http://www.fairchildsemi.com/packaging/. http://www.fairchildsemi.com/products/analog/pdf/sc70-6_tr.pdf.

  1. DIMENSIONS ARE IN MILLIMETERS
  2. CONFORMS TO JEDEC STANDARD M0-252 VARIATION UAAD
  3. FILENAME AND REVISION: MAC06AREV4
  4. DRAWING CONFORMS TO ASME Y14.5M-1994

0.075 X 45

0.10 CBA

  1. PIN ONE IDENTIFIER IS 2X LENGTH OF ANY

OTHER LINE IN THE MARK CODE LAYOUT. Figure 16. 6-Lead, Micropak™ 1.0mm Wide Package warranty therein, which covers Fairchild products. http://www.fairchildsemi.com/products/logic/pdf/micropak_tr.pdf.

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com FSA4157 • FSA4157A Rev. 1.0.7 12 FSA4157, FSA4157A — Low-Voltage, 1Ω SPDT Analog Switch