Semiconductor Components Industries, LLC, 2005
March, 2005 − Rev. 1 1Publication Order Number:
NLAS4157/D
NLAS4157
SPDT, 1 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
•Single Supply Operation:
1.65 V to 5.5 V VCC
Function Directly from LiON Battery
•T iny SC88 6−Pin Pb−Free Package:
Meets JEDEC MO−220 Specifications
•RON Typical = 0.8 @ VCC = 4.5 V
•Low Static Power
•This is a Pb−Free Device
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
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SC−88 (SOT−363)
CASE 419B
1
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
ORDERING INFORMATION
1
2
3
6
5
4
(Top View)
B1
GND
B0
S
VCC
A
PIN ASSIGNMENTS
AN M
1
6
MARKING DIAGRAM
AN = Specific Device Code
M = Date Code
NLAS4157
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2
Figure 1. Input Equivalent Circuit
B1
S
B0A
PIN DESCRIPTION
Pin Name Description
A, B0, B1 Data Ports
SControl Input
TRUTH TABLE
Control Input Function
LB0 Connected to A
HB1 Connected to A
H = HIGH Logic Level.
L = LOW Logic Level.
MAXIMUM RATINGS
Symbol Rating Value Unit
VCC Positive DC Supply Voltage −0.5 to +6.0 V
VIS Analog Input Voltage (VNO, VNC, or VCOM)−0.5 to VCC +0.5 V
VIN Digital Select Input Voltage −0.5 to +6.0 V
Ianl1 Continuous DC Current from COM to NC/NO ±300 mA
Ianl−pk1 Peak Current from COM to NC/NO, 10 Duty Cycles (Note 1) ±500 mA
Iclmp Continuous DC Current into COM/NC/NO with respect to VCC or GND ±100 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 Rating Min Max Unit
VCC Positive DC Supply Voltage 1.65 5.5 V
VIS Analog Input Voltage (A, B0, B1) 0 VCC V
VIN Digital Select Input Voltage (S) 0 VCC V
TAOperating Temperature Range −40 85 °C
tr, tfInput Rise or Fall Time, SELECT VCC = 3.0 V
VCC = 5.5 V 20
10 ns/V
NLAS4157
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DC ELECTRICAL CHARACTERISTICS
VCC
TA = +25°C TA = −40°C to +85°C
Symbol Parameter Test Conditions
V
CC
(V) Min Typ Max Min Max Unit
VIH HIGH Level
Input Voltage 2.7
4.5 2.0
2.4 V
VIL LOW Level
Input Voltage 2.7
4.5 0.6
0.8 V
IIN Input Leakage Current 0 VIN 5.5 V 0−5.5 ±0.1 ±1A
IOFF OFF State Leakage
Current (Note 7) 0 A, B VCC 5.5 −2.0 +2.0 ±20 nA
ION ON State Leakage
Current (Note 7) 0 A, B VCC 5.5 −4.0 +4.0 ±40 nA
RON Switch On Resistance
(Note 2) IO = −100 mA,
B0 or B1 = 3.5 V 2.7 2.0 4.0 4.3
IO = −100 mA,
B0 or B1 = 1.5 V 4.5 0.8 1.15 1.3
ICC Quiescent Supply
Current
All Channels ON or OFF
VIN = VCC or GND, IOUT = 0 5.5 0.5 1.0 A
Analog Signal Range
RON On Resistance Match
Between Channels
(Notes 2, 3, 4)
IA = −100 mA,
B0 or B1 = 1.5 V
IA = −100 mA,
B0 or B1 = 3.5 V
2.7
4.5
0.15
0.12 0.15
Rflat On Resistance
Flatness (Notes 2, 3, 5) 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
1.4
0.3 0.4
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).
NLAS4157
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4
AC ELECTRICAL CHARACTERISTICS
VCC
TA = +25°C TA = −40°C to +85°C
Figure
Symbol Parameter Test Conditions
V
CC
(V) Min Typ Max Min Max Unit
Fig
u
re
#
tPHL
tPLH Propagation Delay
Bus−to−Bus (Note 9) VI = OPEN 2.7
4.5 2.0
0.3 ns 3, 4
tON Output Enable Time
Turn On Time
(A to Bn)
B0 or B1 = 1.5 V,
RL = 50 , CL = 35 pF
B0 or B1 = 3.0 V,
RL = 50 , CL = 35 pF
2.7
4.5
30
20
35
25
ns 3, 4
tOFF Output Disable Time
Turn Off Time
(A Port to B Port)
B0 or B1 = 1.5V,
RL = 50 , CL = 35 pF
B0 or B1 = 3.0 V,
RL = 50 , CL = 35 pF
2.7
4.5
20
15
25
20
ns 3, 4
tBBM Break Before Make Time
(Note 8) 2.7
4.5
0.5
0.5
0.5
0.5
ns 2
QCharge Injection
(Note 8) CL = 1.0 nF, VGEN = 0 V
RGEN = 0 2.7
4.5 26
48 pC 6
OIRR Off Isolation (Note 10) RL = 50
f = 1.0 MHz 2.7 −
5.5 −52 dB 5
Xtalk Crosstalk RL = 50
f = 1.0 MHz 2.7 −
5.5 −57 dB 7
BW −3 dB Bandwidth RL = 50 2.7 −
5.5 40 MHz 8
THD Total Harmonic
Distortion (Note 8) RL = 600
0.5 VP−P
f = 20 Hz to 20 kHz
2.7 −
5.5 0.012 % 9
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 Parameter Test Conditions Typ Max Unit Figure
#
CIN Select Pin Input Capacitance VCC = 0 V, f = 1 MHz 10 pF
CIO−B B Port Off Capacitance VCC = 4.5 V, f = 1 MHz 25 pF
CIOA−ON A Port Capacitance when Switch is Enabled VCC = 4.5 V, f = 1 MHz 87 pF
11. TA = +25°C, f = 1 MHz, Capacitance is characterized but not tested in production.
NLAS4157
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5
Figure 2. tBBM (Time Break−Before−Make)
Output
DUT
50 35 pF
VCC
Switch Select Pin
90%
Output
InputVCC
GND
90% of VOH
GND
Figure 3. tON/tOFF
50% 50%
90% 90%
tON tOFF
VOH
Output
InputVCC
0 V
Figure 4. tON/tOFF
DUT
Open 35 pF
VCC
Input
50% 50%
10%
tON
tOFF
Output
InputVCC
0 V
10%
50
0.1 FtBMM
Output
VOUT
VOL
VOUT VOH
VOL
DUT
Open
VCC
Input
Output
50 35 pF
VOUT
0.1 F
NLAS4157
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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 for VIN at 100 kHz
VONL = On Channel Loss = 20 Log 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
Output
DUT
Input
50
50 Generator
Reference
Transmitted
Figure 5. Off Channel Isolation/On Channel Loss (BW)/Crosstalk
(On Channel to Off Channel)/VONL
50
VOUT
VIN
VOUT
VIN
Off On Off VOUT
VCC
GND
Output
VIN
CL
DUT
Figure 6. Charge Injection: (Q)
VIN
Open Output
NLAS4157
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0.005
0
10 1000 10000 100000
FREQUENCY (Hz)
THD (%)
Figure 7. Cross Talk vs. Frequency
@ VCC = 4.5 V
FREQUENCY (MHz)
0
−10
−70
XT (dB)
1.0 1000100100.1
−20
−30
−40
−50
−60
−80
Figure 8. Bandwidth vs. Frequency
FREQUENCY (MHz)
BW (dB)
0.1 1000101.0
0
−2
−4
−6
−8
−10
−12 100
0
0.5
0.0 0.5 1.0 1.5 2.0 3.0
VIN (V)
RON ()
2.5
−40°C85°C
25°C
1
1.5
2
2.5
Figure 9. Total Harmonic Distortion Figure 10. On−Resistance vs. Input Voltage
@ VCC = 2.7 V
Figure 11. On−Resistance vs. Input Voltage
@ VCC = 4.5 V
0
0.2
0.4
0.6
0.0 1.0 2.0 3.0
RON ()
VIN (V)
0.5 1.5 2.5 3.5 4.54.0
0.1
0.3
0.5
−40°C
85°C
25°C
0
0.5
1.0
1.5
2.0
2.5
0.0 1.0 2.0 3.0 4.0 5.0
VIN (V)
RON ()
Figure 12. On−Resistance vs. Input Voltage
0.5 1.5 2.5 3.5 4.5
2.7 V
3.0 V
4.5 V
100
0.0005
0.001
0.0015
0.002
0.0025
0.003
0.0035
0.004
0.0045
0.8
1
0.7
0.9
3.6 V
NLAS4157
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DEVICE ORDERING INFORMATION
Device Nomenclature
Device Order Number Circuit
Indicator Technology Device
Function Package
Suffix Tape & Reel
Suffix Package Type Tape & Reel Size†
NLAS4157DFT2G NL AS 4157 DFT 2 SC−88
(Pb−Free) 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.
NLAS4157
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PACKAGE DIMENSIONS
SC−88/SC70−6/SOT−363
CASE 419B−02
ISSUE V
mm
inches
SCALE 20:1
0.65
0.025
0.65
0.025
0.50
0.0197
0.40
0.0157
1.9
0.0748
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. 419B−01 OBSOLETE, NEW STANDARD 419B−02.
E0.2 (0.008) MM
123
D
e
A1
A
A3
C
L
654
−E−
b6 PL
DIM MIN NOM MAX
MILLIMETERS
A0.80 0.95 1.10
A1 0.00 0.05 0.10
A3
b0.10 0.21 0.30
C0.10 0.14 0.25
D1.80 2.00 2.20
0.031 0.037 0.043
0.000 0.002 0.004
0.004 0.008 0.012
0.004 0.005 0.010
0.070 0.078 0.086
MIN NOM MAX
INCHES
0.20 REF 0.008 REF
HE
HE
E1.15 1.25 1.35
e0.65 BSC
L0.10 0.20 0.30
2.00 2.10 2.20
0.045 0.049 0.053
0.026 BSC
0.004 0.008 0.012
0.078 0.082 0.086
NLAS4157
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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
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“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
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2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051
Phone: 81−3−5773−3850
NLAS4157/D
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