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FSA4157 * FSA4157A Low Voltage 1 SPDT Analog Switch
August 2003 Revised January 2005
FSA4157 * FSA4157A Low Voltage 1 SPDT Analog Switch
General Description
FSA4157 and FSA4157A are high performance Single Pole/Double Throw (SPDT) analog switches. Both devices feature ultra low RON of 1.15 maximum at 4.5V VCC and will operate over the wide VCC 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-beforemake operation. The select input is TTL level compatible. The FSA4157A features very low quiescent current even when the control voltage is lower than the VCC supply. This feature services the mobile handset applications very well allowing for the direct interface with baseband processor general purpose I/Os.
Features
s FSA4157A features lower ICC when the S input is lower than VCC s Maximum 1.15 On Resistance (RON) at 4.5V VCC s 0.3 max RON flatness at 4.5V VCC s Space saving 6-lead Pb-Free MicroPak and SC70 6-lead surface mount packages s Broad VCC operating range: * FSA4157: 1.65V to 5.5V * FSA4157A: 2.7V to 5.5V s Fast turn-on and turn-off time s Break-before-make enable circuitry s Over-voltage tolerant TTL compatible control circuitry
Ordering Code:
Order Number FSA4157P6 FSA4157P6X FSA4157P6X_NL (Note 1) FSA4157L6X FSA4157AP6 FSA4157AP6X FSA4157AP6X_NL (Note 1) FSA4157AL6X Package Number MAA06A MAA06A MAA06A MAC06A MAA06A MAA06A MAA06A MAC06A Product Code Top Mark A57 A57 A57 EG B57 B57 B57 EU Package Description Supplied As
6-Lead SC70, EIAJ SC88, 1.25mm Wide 250 Units on Tape and Reel 6-Lead SC70, EIAJ SC88, 1.25mm Wide 3k Units on Tape and Reel Pb-Free 6-Lead SC70, EIAJ SC88, 1.25mm Wide 3k Units on Tape and Reel
Pb-Free 6-Lead MicroPak, 1.0mm Wide 5k Units on Tape and Reel 6-Lead SC70, EIAJ SC88, 1.25mm Wide 250 Units on Tape and Reel 6-Lead SC70, EIAJ SC88, 1.25mm Wide 3k Units on Tape and Reel Pb-Free 6-Lead SC70, EIAJ SC88, 1.25mm Wide 3k Units on Tape and Reel
Pb-Free 6-Lead MicroPak, 1.0mm Wide 5k Units on Tape and Reel
Pb-Free package per JEDEC J-STD-020B. Note 1: "_NL" indicates lead-free package (per JEDEC J-STD-020B). Device available in Tape and Reel only.
MicroPak is a trademark of Fairchild Semiconductor Corporation.
(c) 2005 Fairchild Semiconductor Corporation
DS500841
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FSA4157 * FSA4157A
Analog Symbols
Pin Assignment for SC70 Pin Assignment for MicroPak
(Top View)
(Top Through View)
Truth Table
Control Input (S) L H
H = HIGH Logic Level L = LOW Logic Level
Pin Descriptions
Function B0 Connected to A B1 Connected to A Pin Name A, B0, B1 S Description Data Ports Control Input
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FSA4157 * FSA4157A
Absolute Maximum Ratings(Note 2)
Supply Voltage (VCC) DC Switch Voltage (Note 3) DC Input Voltage (VIN) (Note 3) DC Input Diode Current Switch Current Peak Switch Current (Pulse at 1 mS duration,
-0.5V to +6.0V -0.5V to VCC +0.5V -0.5V to +6.0V -50 mA
200 mA
Recommended Operating Conditions (Note 4)
Supply Voltage (VCC) FSA4157 FSA4157A Control Input Voltage Switch Input Voltage Operating Temperature 1.65V to 5.5V 2.7V to 5.5V 0V to VCC 0V to VCC
-40C to 85C
350C/W 330C/W (estimated)
<10% Duty Cycle)
Power Dissipation (PD) @ 85C SC70 6L Package MicroPak 6L Package Storage Temperature Range (TSTG) Maximum Junction Temperature (TJ) Lead Temperature (TL) (Soldering, 10 seconds) ESD (Human Body Model) FSA4157A
400 mA 180 mW 180 mW
Thermal Resistance JA in still air SC70 6L Package MicroPak 6L Package
-65C to +150C +150C +260C
7500V
Note 2: The "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum rating. The "Recommended Operating Conditions" table will define the conditions for actual device operation. Note 3: The input and output negative ratings may be exceeded if the input and output diode current ratings are observed. Note 4: Control input must be held HIGH or LOW and it must not float.
DC Electrical Characteristics (all typical values are at 25C unless otherwise specified)
Symbol VIH VIL Parameter Input Voltage High Input Voltage Low VCC (V) 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 2.7 to 3.6 4.5 to 5.5 IIN INO(OFF), INC(OFF) IA(ON) RON RON Control Input Leakage OFF Leakage Current of Port B0 and B1 ON Leakage Current of Port A Switch ON Resistance (Note 5) On Resistance Matching Between Channels (Note 6) RFLAT(ON) On Resistance Flatness (Note 7) 4.5 ICC ICC Quiescent Supply Current Increase in ICC per Input 3.6 5.5 4.3 0.2 0.1 0.1 0.2 0.3 0.5 0.5 0.4 1.0 1.0 10.0 A A 2.7 to 3.6 4.5 to 5.5 5.5 5.5 2.7 4.5 4.5 2.7 -2.0 -4.0 2.6 0.95 0.06 1.4 2.0 4.0 4.0 1.15 0.12 -1.0 -1.0 -20.0 -40.0 Min TA = +25 C Typ Max TA = -40C to +85C Min 2.0 2.4 0.4 0.6 0.8 1.0 1.0 20.0 40.0 4.3 1.3 0.15 A nA nA VIN = 0V to VCC A = 1V, 4.5V B0 or B1 = 4.5V, 1V A = 1V, 4.5V B0 or B1 = 1V, 4.5V or Floating IOUT = 100mA, B0 or B1 = 1.5V IOUT = 100mA, B0 or B1 = 3.5V IOUT = 100mA, B0 or B1 = 1.5V IOUT = 100mA, B0 or B1 = 0V, 0.75V,1.5V IOUT = 100mA, B0 or B1 = 0V, 1V, 2V VIN = 0V or VCC, IOUT = 0V VIN = 0V or VCC, IOUT = 0V One Input at 2.7V, others at VCC or GND (FSA4157A only) V Max Units V (FSA4157A Only) Conditions
Note 5: Measured by the voltage drop between 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). Note 6: RON = RON max - RON min measured at identical VCC, temperature and voltage. Note 7: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of conditions.
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FSA4157 * FSA4157A
AC Electrical Characteristics (all typical value are at 25C unless otherwise specified)
Symbol tON Parameter Turn ON Time VCC (V) 2.7 to 3.6 2.7 to 3.6 4.5 to 5.5 tOFF tB-M Turn OFF Time Break Before Make Time Q OIRR Xtalk BW THD Charge Injection OFF- Isolation Crosstalk 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 2.7 to 3.6 4.5 to 5.5 -3db Bandwidth 2.7 to 3.6 4.5 to 5.5 Total Harmonic Distortion 2.7 to 3.6 4.5 to 5.5 20.0 25.0 10.0 20.0 -70.0 -70.0 -70.0 -70.0 350 350 0.002 0.002 pC dB dB ns (FSA4157A only) CL = 1.0nF, VGE = 0V, RGEN = 0 f = 1MHz, RL = 50 f = 1MHz, RL = 50 Figure 6 Figure 5 Figure 5 Figure 8 Figure 9 Figure 4 Min TA = +25 C Typ Max 60.0 50.0 35.0 20.0 15.0 TA = -40C to +85C Min Max 65.0 60.0 40.0 30.0 20.0 ns ns Units Conditions B0 or B1 = 1.5V, RL = 50, CL = 35 pF (FSA4157A only) B0 or B1 = 1.5V, RL = 50, CL = 35 pF B0 or B1 = 3V, RL = 50, CL = 35 pF B0 or B1 = 1.5V, RL = 50, CL = 35 pF B0 or B1 = 3V, RL = 50, CL = 35 pF Figure 3 Figure 3 Figure Number
MHz RL = 50 % RL = 600, VIN = 0.5V P.P, f = 20 Hz to 20 k Hz
Capacitance
Symbol CIN COFF CON Parameter Control Pin Input Capacitance B Port OFF Capacitance On Capacitance VCC (V) 0 4.5 4.5 Min TA = +25C Typ 3.5 12.0 40.0 Max TA = 40C to +85C Min Max pF pF pF f = 1MHz f = 1MHz f = 1MHz Units Conditions Figure Number Figure 7 Figure 7 Figure 7
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FSA4157 * FSA4157A
FIGURE 1. RON Switch On Resistance, ION = 100mA, VCC = 2.7V
FIGURE 2. RON Switch On Resistance, ION = 100mA, VCC = 4.5V
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FSA4157 * FSA4157A
AC Loading and Waveforms
CL Includes Fixture and Stray Capacitance
Logic Input Waveforms Inverted for Switches that have the Opposite Logic Sense
FIGURE 3. Turn ON/OFF Timing
CL Includes Fixture and Stray Capacitance FIGURE 4. Break Before Make Timing
FIGURE 5. OFF Isolation and Crosstalk
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FSA4157 * FSA4157A
AC Loading and Waveforms
(Continued)
FIGURE 6. Charge Injection
FIGURE 7. ON/OFF Capacitance Measurement Setup
FIGURE 8. Bandwidth
FIGURE 9. Harmonic Distortion
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FSA4157 * FSA4157A
Tape and Reel Specification
Tape Format For Micropak 6 Package Designator L6X Tape Section Leader (Start End) Carrier Trailer (Hub End) Number Cavities 125 (typ) 5000 75 (typ) Cavity Status Empty Filled Empty Cover Tape Status Sealed Sealed Sealed
REEL DIMENSIONS inches (millimeters)
Tape Size 8 mm
A 7.0 (177.8)
B 0.059 (1.50)
C 0.512 (13.00)
D 0.795 (20.20)
N 2.165 (55.00)
W1 0.331 + 0.059/-0.000 (8.40 + 1.50/-0.00)
W2 0.567 (14.40)
W3 W1 + 0.078/-0.039 (W1 + 2.00/-1.00)
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FSA4157 * FSA4157A
Physical Dimensions inches (millimeters) unless otherwise noted
6-Lead SC70, EIAJ SC88, 1.25mm Wide Package Number MAA06A
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FSA4157 * FSA4157A Low Voltage 1 SPDT Analog Switch
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Pb-Free 6-Lead MicroPak, 1.0mm Wide Package Number MAC06A
Technology Description
The Fairchild Switch family derives from and embodies Fairchild's proven switch technology used for several years in its 74LVX3L384 (FST3384) bus switch product.
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com 10 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com

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