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NLAS4157 SPDT, 1 W RON Switch
The NLAS4157 is a low RON SPDT analog switch. This device is designed for low operating voltage, high current switching of speaker output for cell phone applications. It can switch a balanced stereo output. The NLAS4157 can handle a balanced microphone/speaker/ringtone generator in a monophone mode. The device contains a break-before-make (BBM) feature.
Features
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* Single Supply Operation: * * * *
1.65 V to 5.5 V VCC Function Directly from LiON Battery Tiny SC88 6-Pin Pb-Free Package: Meets JEDEC MO-220 Specifications RON Typical = 0.8 W @ VCC = 4.5 V Low Static Power This is a Pb-Free Device
1 SC-88 (SOT-363) CASE 419B
MARKING DIAGRAM
6 AN M 1 AN M = Specific Device Code = Date Code
Typical Applications
* Cell Phone Speaker/Microphone Switching * Ringtone-Chip/Amplifier Switching * Stereo Balanced (Push-Pull) Switching
Important Information
* * * *
Ringtone-Chip/Amplifier Switching Continuous Current Rating Through each Switch 300 mA Conforms to: JEDEC MO-220, Issue H, Variation VEED-6 Pin for Pin Compatible with FSA4157
PIN ASSIGNMENTS
B1
1
6
S
GND
2
5
VCC
B0
3
4
A
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet.
(c) Semiconductor Components Industries, LLC, 2005
1
March, 2005 - Rev. 1
Publication Order Number: NLAS4157/D
NLAS4157
A
B0
B1
S
Figure 1. Input Equivalent Circuit PIN DESCRIPTION
Pin Name A, B0, B1 S Description Data Ports Control Input
TRUTH TABLE
Control Input L H H = HIGH Logic Level. L = LOW Logic Level. Function B0 Connected to A B1 Connected to A
MAXIMUM RATINGS
Symbol VCC VIS VIN Ianl1 Ianl-pk1 Iclmp Positive DC Supply Voltage Analog Input Voltage (VNO, VNC, or VCOM) Digital Select Input Voltage Continuous DC Current from COM to NC/NO Peak Current from COM to NC/NO, 10 Duty Cycles (Note 1) Continuous DC Current into COM/NC/NO with respect to VCC or GND Rating Value -0.5 to +6.0 -0.5 to VCC +0.5 -0.5 to +6.0 300 500 100 Unit V V V mA mA mA
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. Defined as 10% ON, 90% off duty cycle.
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VIS VIN TA tr, tf Positive DC Supply Voltage Analog Input Voltage (A, B0, B1) Digital Select Input Voltage (S) Operating Temperature Range Input Rise or Fall Time, SELECT VCC = 3.0 V VCC = 5.5 V Rating Min 1.65 0 0 -40 Max 5.5 VCC VCC 85 20 10 Unit V V V C ns/V
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NLAS4157
DC ELECTRICAL CHARACTERISTICS
VCC (V) 2.7 4.5 2.7 4.5 0 v VIN v 5.5 V 0 v A, B v VCC 0 v A, B v VCC IO = -100 mA, B0 or B1 = 3.5 V IO = -100 mA, B0 or B1 = 1.5 V ICC Quiescent Supply Current All Channels ON or OFF VIN = VCC or GND, IOUT = 0 0-5.5 5.5 5.5 2.7 4.5 5.5 -2.0 -4.0 2.0 0.8 0.1 +2.0 +4.0 4.0 1.15 0.5 TA = +25C Min Typ Max TA = -40C to +85C Min 2.0 2.4 0.6 0.8 1 20 40 4.3 1.3 1.0 mA Max Unit V V mA nA nA W
Symbol VIH VIL IIN IOFF ION RON
Parameter HIGH Level Input Voltage LOW Level Input Voltage Input Leakage Current OFF State Leakage Current (Note 7) ON State Leakage Current (Note 7) Switch On Resistance (Note 2)
Test Conditions
Analog Signal Range DRON On Resistance Match Between Channels (Notes 2, 3, 4) On Resistance Flatness (Notes 2, 3, 5) IA = -100 mA, B0 or B1 = 1.5 V IA = -100 mA, B0 or B1 = 3.5 V IA = -100 mA, B0 or B1 = 0 V, 0.75 V, 1.5 V IA = -100 mA, B0 or B1 = 0 V, 1.0 V, 2.0 V 2.7 4.5 2.7 4.5 0.15 0.12 1.4 0.3 0.4 0.15 W W
Rflat
2. 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 voltages on the two (A or B Ports). 3. Parameter is characterized but not tested in production. 4. DRON = RON max - RON min measured at identical VCC, temperature and voltage levels. 5. Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of conditions. 6. Guaranteed by Design. 7. This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On Resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).
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NLAS4157
AC ELECTRICAL CHARACTERISTICS
VCC (V) 2.7 4.5 2.7 4.5 2.7 4.5 TA = +25C Min Typ Max 2.0 0.3 30 20 20 15 35 25 25 20 ns 2.7 4.5 Q OIRR Xtalk BW THD Charge Injection (Note 8) Off Isolation (Note 10) Crosstalk -3 dB Bandwidth Total Harmonic Distortion (Note 8) CL = 1.0 nF, VGEN = 0 V RGEN = 0 W RL = 50 W f = 1.0 MHz RL = 50 W f = 1.0 MHz RL = 50 W RL = 600 W 0.5 VP-P f = 20 Hz to 20 kHz 2.7 4.5 2.7 - 5.5 2.7 - 5.5 2.7 - 5.5 2.7 - 5.5 0.5 0.5 26 48 -52 -57 40 0.012 0.5 0.5 pC dB dB MHz % 6 5 7 8 9 2 ns 3, 4 TA = -40C to +85C Min Max Unit ns ns Figure # 3, 4 3, 4
Symbol tPHL tPLH tON
Parameter Propagation Delay Bus-to-Bus (Note 9) Output Enable Time Turn On Time (A to Bn) Output Disable Time Turn Off Time (A Port to B Port) Break Before Make Time (Note 8)
Test Conditions VI = OPEN B0 or B1 = 1.5 V, RL = 50 W, CL = 35 pF B0 or B1 = 3.0 V, RL = 50 W, CL = 35 pF B0 or B1 = 1.5V, RL = 50 W, CL = 35 pF B0 or B1 = 3.0 V, RL = 50 W, CL = 35 pF
tOFF
tBBM
8. Guaranteed by Design. 9. This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the RC delay of the On Resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance). 10. Off Isolation = 20 log10 [VA/VBn].
CAPACITANCE (Note 11)
Symbol CIN CIO-B CIOA-ON Parameter Select Pin Input Capacitance B Port Off Capacitance A Port Capacitance when Switch is Enabled Test Conditions VCC = 0 V, f = 1 MHz VCC = 4.5 V, f = 1 MHz VCC = 4.5 V, f = 1 MHz Typ 10 25 87 Max Unit pF pF pF Figure #
11. TA = +25C, f = 1 MHz, Capacitance is characterized but not tested in production.
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NLAS4157
DUT VCC 0.1 mF 50 W Output VOUT 35 pF 90% Output Input GND tBMM 90% of VOH VCC
Switch Select Pin GND
Figure 2. tBBM (Time Break-Before-Make)
VCC DUT VCC 0.1 mF Open Output VOUT 50 W 35 pF Output VOL Input tON tOFF Input 0V VOH 90% 90% 50% 50%
Figure 3. tON/tOFF
VCC DUT Output Open 50 W VOUT 35 pF Input
VCC 50% 0V VOH Output VOL 10% 10% 50%
Input
tOFF
tON
Figure 4. tON/tOFF
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NLAS4157
50 W Reference Input Output 50 W Generator 50 W DUT Transmitted
Channel switch control/s test socket is normalized. Off isolation is measured across an off channel. On loss is the bandwidth of an On switch. VISO, Bandwidth and VONL are independent of the input signal direction. VISO = Off Channel Isolation = 20 Log VONL = On Channel Loss = 20 Log VOUT VIN for VIN at 100 kHz
VOUT VIN
for VIN at 100 kHz to 50 MHz
Bandwidth (BW) = the frequency 3 dB below VONL VCT = Use VISO setup and test to all other switch analog input/outputs terminated with 50 W
Figure 5. Off Channel Isolation/On Channel Loss (BW)/Crosstalk (On Channel to Off Channel)/VONL
DUT Open Output VIN
VCC GND CL Output Off Off DVOUT
VIN
On
Figure 6. Charge Injection: (Q)
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NLAS4157
0 -10 -20 BW (dB) -30 XT (dB) -40 -50 -60 -70 -80 0.1 1.0 10 FREQUENCY (MHz) 100 1000 -10 -12 0.1 -4 -6 -8 0 -2
1.0
10 FREQUENCY (MHz)
100
1000
Figure 7. Cross Talk vs. Frequency @ VCC = 4.5 V
0.005 0.0045 0.004 0.0035 THD (%) RON (W) 0.003 0.0025 0.002 0.0015 0.001 0.0005 0 10 100 1000 FREQUENCY (Hz) 10000 100000 0 0.0 0.5 1.5 2 2.5
Figure 8. Bandwidth vs. Frequency
25C -40C 85C
1
0.5
1.0
1.5 VIN (V)
2.0
2.5
3.0
Figure 9. Total Harmonic Distortion
Figure 10. On-Resistance vs. Input Voltage @ VCC = 2.7 V
1 0.9 0.8 0.7 RON (W) 0.6 0.5 0.4 0.3 0.2 0.1 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 85C 25C RON (W) -40C
2.5 2.7 V
2.0
1.5
3.0 V 3.6 V
1.0
0.5
4.5 V
0 0.0
0.5
1.0
1.5
2.0
2.5 VIN (V)
3.0
3.5
4.0
4.5
5.0
VIN (V)
Figure 11. On-Resistance vs. Input Voltage @ VCC = 4.5 V
Figure 12. On-Resistance vs. Input Voltage
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NLAS4157
DEVICE ORDERING INFORMATION
Device Nomenclature Device Order Number NLAS4157DFT2G Circuit Indicator NL Technology AS Device Function 4157 Package Suffix DFT Tape & Reel Suffix 2 Package Type SC-88 (Pb-Free) Tape & Reel Size 3000 / Tape & Reel
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
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NLAS4157
PACKAGE DIMENSIONS
SC-88/SC70-6/SOT-363 CASE 419B-02 ISSUE V
D e
NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. 419B-01 OBSOLETE, NEW STANDARD 419B-02. 4 MILLIMETERS MIN NOM MAX 0.80 0.95 1.10 0.00 0.05 0.10 0.20 REF 0.10 0.21 0.30 0.10 0.14 0.25 1.80 2.00 2.20 1.15 1.25 1.35 0.65 BSC 0.10 0.20 0.30 2.00 2.10 2.20 INCHES NOM MAX 0.037 0.043 0.002 0.004 0.008 REF 0.004 0.008 0.012 0.004 0.005 0.010 0.070 0.078 0.086 0.045 0.049 0.053 0.026 BSC 0.004 0.008 0.012 0.078 0.082 0.086 MIN 0.031 0.000
6
5
HE
1 2 3
-E-
b 6 PL 0.2 (0.008)
M
E
M
DIM A A1 A3 b C D E e L HE
A3 C A
A1
L
SOLDERING FOOTPRINT*
0.50 0.0197
0.65 0.025 0.65 0.025 0.40 0.0157
1.9 0.0748
SCALE 20:1
mm inches
*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
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NLAS4157
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
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NLAS4157/D

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