SGM4157YC
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 SC70-6 package.
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SPDT 0.8Ω Analog Switch
FEATURES
Voltage Operation: 1. 8V to 4.2V
On-Resistance: 0.8Ω (TYP)
-3dB Bandwidth: 100MHz
High Off-Isolation: -50dB at 10MHz
Rail-to-Rail Operation
Low Static Power
TTL/CMOS Compatible
Break-Before-Make Switching
Extended Industrial Temperature Range: -40°C to +85°C
Microsize Package
PIN CONFIGURATION（TOP VIEW）
APPLICATIONS
Portable Instrumentation
Battery-Operated Equipment
Computer Peripherals
Cell Phones
PDAs
MP3s
PIN DESCRIPTION
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
FUNCTION TABLE
LOGIC
0
1
NO
OFF
ON
NC
ON
OFF
Switches Shown For Logic “0” Input
Note: NO, NC and COM terminal may be an input or output.
SG Microelectronics Co, Ltd
Tel: 86/10/51798160/80
www.sg-micro.com
REV. A
SGMICRO [ Shengbang Microelectronics Co, Ltd ]
