LR1554 datasheet(1/6 Pages) LRC

Part #	LR1554

Description	L ow Voltage 0.4 Quad SPDT Analog Switch

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Manufacturer	LRC [Leshan Radio Company]

Direct Link	http://www.lrc.cn/

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Low Voltage 0.4Ω Quad SPDT Analog Switch

Features

Wide Power Supply Range:1.6V to 4.2V

Low On-Resistance: 0.4Ω (VDD=2.7V)

Low On-Resistance Flatness

-3dB BandWidth: 42 MHz

Fast Switching Speed(VDD=3.3V):

tON: 20ns

tOFF: 10ns

IDD = 300nA @ TA = +25°C

High Off Isolation: -65dB

Crosstalk Rejection: -65dB

Lead(Pb) Free QFN-16 Package(3mmx3mm)

Applications

Wireless Handsets

Portable electronic devices

PDAs

Audio & Video Switching

PCMCIA Cards

Computer Peripherals

Modems

Pin Configuration

COM1

NO1

VDD

NC4

NC2

GND

NO3

COM3

LR

1554

SSSSS

1

2

3

13

12

11

10

9

8

7

6

5

4

14

15

16

Top View

Description

The LR1554 is a quad single-pole double-throw

(SPDT) CMOS switch featuring an On-Resistance of

0.4 ohm at VDD=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

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

Description

VDD

PWR

Power Supply

GND

Ground

COMx

Input/Output

Data Port

NCx

Input/Output

Data Port

NOx

Input/Output

Data Port

Ay

Input

Logic Control Signal

x = 1, 2, 3 or 4; y = 0 or 1

LR1554

Leshan Radio Co ., Ltd

1/6

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