LR1554 Datasheet, PDF (1/6 Pages) Leshan Radio Company – L ow Voltage 0.4 Quad SPDT Analog Switch

Leshan Radio Co ., Ltd
Low Voltage 0.4Ω Quad SPDT Analog Switch
LR1554
Features
z Wide Power Supply Range:1.6V to 4.2V
z Low On-Resistance: 0.4Ω (V_DD=2.7V)
z Low On-Resistance Flatness
z -3dB BandWidth: 42 MHz
z Fast Switching Speed(V_DD=3.3V):
t_ON: 20ns
t_OFF: 10ns
z I_DD = 300nA @ TA = +25°C
z High Off Isolation: -65dB
z Crosstalk Rejection: -65dB
z Lead(Pb) Free QFN-16 Package(3mmx3mm)
Description
The LR1554 is a quad single-pole double-throw
(SPDT) CMOS switch featuring an On-Resistance of
0.4 ohm at V_DD=2.7V and wide power supply range
from 1.6V to 4.2V. It can be used as an analog switch
or low-delay bus switch.
Block Diagram
Applications
z Wireless Handsets
z Portable electronic devices
z PDAs
z Audio & Video Switching
z PCMCIA Cards
z Computer Peripherals
z Modems
Pin Configuration
COM1 NO1
16
15
VDD
14
NC4
13
1
12
LR
2
1554
11
SSSSS
3
10
4
9
5
6
7
8
NC2 GND NO3 COM3
Top View
Function Table
In
Function
0 NC1(NC2) connect to COM1 (COM2)
A0
1 NO1(NO2) connect to COM1 (COM2)
0 NC3(NC4) connect to COM3 (COM4)
A1
1 NO3(NO4) connect to COM3 (COM4)
Pin Description
Pin Name Type
VDD
PWR
GND
Ground
COMx Input/Output
NCx Input/Output
NOx Input/Output
Ay
Input
x = 1, 2, 3 or 4; y = 0 or 1
Description
Power Supply
Ground
Data Port
Data Port
Data Port
Logic Control Signal
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