SGM4157YC
SPDT 0.8Ω Analog Switch
GENERAL DESCRIPTION
The SGM4157YC is a single low on-resistance (0.8Ω),
fast single-pole double-throw (SPDT) CMOS switch. It is
designed for low operating voltage, high current
switching of speaker output for cell phone applications.
The SGM4157YC can handle a balanced microphone/
speaker/ring tone generator in a monophone mode. The
device contains a break−before−make (BBM) feature.
The control input, IN, tolerates input drive signals up to
5.5V, independent of supply voltage.
SGM4157YC is available in Green SC70-6 package.
FEATURES
Voltage Operation: 1.8V to 5.5V
On-Resistance: 0.8Ω (TYP)
-3dB Bandwidth: 90MHz
High Off-Isolation: -45dB at 10MHz
Rail-to-Rail Operation
Low Static Power
TTL/CMOS Compatible
Break-Before-Make Switching
Extended Industrial Temperature Range:
-40℃ to +85℃
Microsize Package
PIN CONFIGURATION
(TOP VIEW)
NO
1
2
3
SC70-6
APPLICATIONS
Portable Instrumentation
Battery-Operated Equipment
Computer Peripherals
Cell Phones
PDAs
MP3s
6
5
4
IN
V
+
GND
NC
COM
PIN DESCRIPTION
FUNCTION TABLE
LOGIC
0
1
NO
OFF
ON
NC
ON
OFF
NAME
NO
GND
NC
COM
V
+
IN
PIN
1
2
3
4
5
6
FUNCTION
Normally-open terminal
Ground
Normally-closed terminal
Common terminal
Power supply
Digital control pin to connect the
COM terminal to the NO or NC
terminals
Switches Shown For Logic “0” Input
NOTE: NO, NC and COM terminal may be an input or output.
REV. B. 3
SG Micro Limited
www.sg-micro.com
SGM4157YC
PACKAGE/ORDERING INFORMATION
MODEL
SGM4157YC
PIN-
PACKAGE
SC70-6
SPECIFIED
TEMPERATURE
RANGE
-40℃ to +85℃
ORDERING
NUMBER
SGM4157YC6/TR
SPDT 0.8Ω Analog Switch
PACKAGE
MARKING
4157
PACKAGE
OPTION
Tape and Reel, 3000
ABSOLUTE MAXIMUM RATINGS
V
+
, IN to GND............................................................ -0.3V to 6V
(1)
Analog, Digital voltage range .................. -0.3V to (V
+
) + 0.3V
Operating Temperature Range............................-40℃ to +85℃
Junction Temperature........................................................150℃
Storage Temperature....................................... -65℃ to +150℃
Lead Temperature (soldering, 10s).................................. 260℃
ESD Susceptibility
HBM................................................................................. 8000V
MM..................................................................................... 400V
NOTES:
1. Signals on NC, NO, or COM or IN exceeding V
+
will be clamped by internal diodes. Limit forward diode current to maximum current
ratings.
2. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections
of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
CAUTION
This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all
integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause
damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric changes could cause the device not to meet its published
specifications.
SGMICRO reserves the right to make any change in circuit design, specification or other related things if necessary without notice at
any time. Please contact SGMICRO sales office to get the last datasheet.
SG Micro Limited
www.sg-micro.com
2
SGM4157YC
SPDT 0.8Ω Analog Switch
ELECTRICAL CHARACTERISTICS
(V
+
= 4.5V to 5.5V, GND = 0V. Typical values are at T
A
= +25℃, unless otherwise noted.)
PARAMETER
ANALOG SWITCH
Analog Signal Range
On-Resistance
On-Resistance Match
Between Channels
On-Resistance Flatness
Source OFF Leakage
Current
Channel ON Leakage
Current
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage Current
DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make
Time Delay
Skew
Off Isolation
-3dB Bandwidth
Channel ON Capacitance
t
ON
t
OFF
t
D
t
SKEW
O
ISO
BW
C
NC(ON)
,
C
NO(ON)
,
C
COM(ON)
C
NC(OFF)
,
C
NO(OFF)
,
C
COM(OFF)
V
+
I
+
V
+
= 5.5V, V
IN
= 0V or V
+
V
+
= 4.5V, V
NO
or V
NC
= 3.0V
R
L
= 300Ω, C
L
= 35pF, Test Circuit 2
V
+
= 4.5V, V
NO
or V
NC
= 3.0V
R
L
= 300Ω, C
L
= 35pF, Test Circuit 2
V
+
= 4.5V, V
NO
or V
NC
= 3.0V
R
L
= 300Ω, C
L
= 35pF, Test Circuit 3
R
S
= 39Ω, C
L
= 50pF, Test Circuit 4
V
+
= 4.5V, R
L
= 50Ω
10MHz
Signal = 0dBm,
1MHz
Test Circuit 5
V
+
= 4.5V, Signal = 0dBm, R
L
= 50Ω
Test Circuit 6
V
+
= 4.5V, f = 1MHz
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
56
32
28
7
-45
-65
90
40
ns
ns
ns
ns
dB
dB
MHz
pF
V
INH
V
INL
I
IN
V
+
= 4.5V
V
+
= 4.5V
V
+
= 4.5V, V
IN
= 0V or V
+
+25℃
+25℃
+25℃
0.1
1.6
0.4
V
V
µA
V
NO
, V
NC
, V
COM
R
ON
∆R
ON
R
FLAT(ON)
I
NC(OFF)
, I
NO(OFF)
V
+
= 4.5V, 0V
≤
V
NO
or V
NC
≤ V
+
I
COM
= -100mA, Test Circuit 1
V
+
= 4.5V,
0V ≤
V
NO
or V
NC
≤
V
+
I
COM
= -100mA, Test Circuit 1
V
+
= 4.5V,
0V ≤
V
NO
or V
NC
≤
V
+
I
COM
= -100mA, Test Circuit 1
V
+
= 5.5V, V
NO
or V
NC
= 4.5V / 1V
V
COM
= 1V / 4.5V
+25℃
+25℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
0.1
1
0.1
1
0.25
0
0.8
0.02
0.2
0.3
0.45
0.6
V
+
V
Ω
Ω
Ω
µA
µA
SYMBOL
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
I
NC(ON)
, I
NO(ON)
, V
+
= 5.5V, V
COM
= 1V / 4.5V
I
COM(ON)
V
NO
or V
NC
= floating
Channel OFF Capacitance
POWER REQUIREMENTS
Power Supply Range
Power Supply Current
V
+
= 4.5V, f = 1MHz
+25℃
8.5
pF
+25℃
+25℃
1.8
0.1
5.5
V
µA
SG Micro Limited
www.sg-micro.com
3
SGM4157YC
SPDT 0.8Ω Analog Switch
ELECTRICAL CHARACTERISTICS
(V
+
= 2.7V to 3.6V, GND = 0V. Typical values are at T
A
= +25℃, unless otherwise noted.)
PARAMETER
ANALOG SWITCH
Analog Signal Range
On-Resistance
On-Resistance Match
Between Channels
On-Resistance Flatness
Source OFF Leakage
Current
Channel ON Leakage
Current
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Leakage Current
DYNAMIC CHARACTERISTICS
Turn-On Time
t
ON
V
+
= 3V, V
NO
or V
NC
= 1.5V
R
L
= 300Ω, C
L
= 35pF,
Test Circuit 2
V
+
= 3V, V
NO
or V
NC
= 1.5V
R
L
= 300Ω, C
L
= 35pF,
Test Circuit 2
V
+
= 3V, V
NO
or V
NC
= 1.5V
R
L
= 300Ω, C
L
= 35pF,
Test Circuit 3
R
S
= 39Ω, C
L
= 50pF, Test Circuit 4
V
+
= 3V, R
L
= 50Ω
10MHz
Signal = 0dBm,
1MHz
Test Circuit 5
V
+
= 3V, Signal = 0dBm, R
L
= 50Ω
Test Circuit 6
V
+
= 3V, f = 1MHz
+25℃
88
ns
V
INH
V
INL
I
IN
V
+
= 2.7V
V
+
= 2.7V
V
+
= 2.7V, V
IN
= 0V or V
+
+25℃
+25℃
+25℃
0.1
1.4
0.4
V
V
µA
V
NO
, V
NC
, V
COM
R
ON
∆R
ON
R
FLAT(ON)
I
NC(OFF)
, I
NO(OFF)
V
+
= 2.7V,
0V ≤
V
NO
or V
NC
≤
V
+
I
COM
= -100mA, Test Circuit 1
V
+
= 2.7V,
0V ≤
V
NO
or V
NC
≤
V
+
I
COM
= -100mA, Test Circuit 1
V
+
= 2.7V,
0V ≤
V
NO
or V
NC
≤
V
+
I
COM
= -100mA, Test Circuit 1
V
+
= 3.6V, V
NO
or V
NC
= 3.3V / 0.3V
V
COM
= 0.3V / 3.3V
+25℃
+25℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
+25℃
-40℃ to +85℃
0.1
1
0.1
1
0.9
0
1.4
0.03
0.3
0.31
1.2
1.25
V
+
V
Ω
Ω
Ω
µA
µA
SYMBOL
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
I
NC(ON)
, I
NO(ON)
, V
+
= 3.6V, V
COM
= 0.3V / 3.3V
I
COM(ON)
V
NO
or V
NC
= floating
Turn-Off Time
Break-Before-Make
Time Delay
Skew
Off Isolation
-3dB Bandwidth
Channel ON Capacitance
t
OFF
+25℃
46
ns
t
D
t
SKEW
O
ISO
BW
C
NC(ON)
,
C
NO(ON)
,
C
COM(ON)
C
NC(OFF)
,
C
NO(OFF)
,
C
COM(OFF)
I
+
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
43
7
-45
-65
90
40
ns
ns
dB
dB
MHz
pF
Channel OFF Capacitance
POWER REQUIREMENTS
Power Supply Current
V
+
= 3V, f = 1MHz
+25℃
8.5
pF
V
+
= 3.6V, V
IN
= 0V or V
+
+25℃
0.1
µA
SG Micro Limited
www.sg-micro.com
4
SGM4157YC
SPDT 0.8Ω Analog Switch
TEST CIRCUITS
100mA
V1
NO or NC
V
NO
or V
NC
COM
R
ON
= V1/100mA
Test Circuit 1. On Resistance
V
+
0.1μF
V
+
V
IN
V
NO
or V
NC
NO or NC
COM
R
L
GND
C
L
V
OUT
V
OUT
V
INH
50%
V
INL
V
OH
90%
90%
50%
V
IN
IN
V
OL
t
ON
t
OFF
Test Circuit 2. Switching Times
V
+
0.1μF
V
NO
or V
NC
NC
NO
V
+
COM
R
L
C
L
V
IN
V
OUT
V
INH
50%
V
INL
V
IN
IN
GND
90%
V
OUT
t
D
Test Circuit 3. Break-Before-Make Time Delay, t
D
SG Micro Limited
www.sg-micro.com
5
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