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PDF BL1551 Data sheet ( Hoja de datos )

Número de pieza BL1551
Descripción Low Voltage SPDT Analog Switch
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BL1551—Single SPDT Analog Switch
2.7Ω Low Voltage SPDT Analog Switch in 6-pin SOT363
Features
Wide Power Supply Range: 1.8V to 5.5V
High Bandwidth: 300MHz
High Off-Isolation:
84dB at 1MHz
51dB at 10MHz
On-Resistance: 2.7Ω(typ) at 5.0V
Fast Switching Time
ton = 12.0ns; toff = 5.0ns
TTL/CMOS Compatible
Break-Before-Make Switching
Rail-to-Rail Signal Range
Operation Temperature Range:
-40℃ to 85℃
Lead (Pb) Free SOT363-6 Package
Applications
Wireless Handsets
MP3 Players
Portable Electronic Devices
Relay Replacement
PDAs
Audio & Video Signal Routing
PCMCIA Cards
Computer Peripherals
Modems
Pin Configuration
ENB VCC
65
B
4
ASSS
123
A1 GND A2
SSS: production id
Description
The BL1551 is a Single Wide-Bandwidth, fast single-
pole double-throw (SPDT) CMOS switch featuring an
On-Resistance of 2.7 ohm at VCC=5.0V and wide
power supply range from 1.8V to 5.5V. It can be used
as an analog switch or as a low-delay bus switch.
The 300MHz high bandwidth performance supports
the high frequency application.
Break-before-make function for both parts eliminates
signal disruption during switching from preventing
both switches being enabled simultaneously.
Block Diagram
BL1551
A1 1
6 ENB
GND 2
5 VCC
A2 3
4B
Function Table
ENB
Function
1 A1 Connected to B
0 A2 Connected to B
Pin Description
Pin Name
Type
VCC
PWR
GND
Ground
B Input/Output
A1 Input/Output
A2 Input/Output
ENB
Input
Description
Power Supply
Ground
Data Port
Data Port
Data Port
Logic Control Signal
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BL1551 pdf
BL1551—Single SPDT Analog Switch
DC ELECTRICAL CHARACTERISTICS +5.0V Supply
Parameter
Symbol
Conditions
Guaranteed Limit
Unit
Min. Typ.(1) Max.
Analog Switch
Analog Signal Range
VA1/VA2/VB
A1 On-Resistance
RON(A1) VCC = 5.0V; IB =-10mA ; VA1=3.5V
A2 On-Resistance
A1 On-Resistance Flatness(2)
A2 On-Resistance Flatness(2)
RON(A2)
RFLAT(A1)
RFLAT(A2)
VCC = 5.0V; IB =-10mA ; VA2 =3.5V
VCC = 5.0V; IB =-10mA ; VA1=3.5V
VCC = 5.0V; IB =-10mA ; VA2 =3.5V
On-Resistance Match Between
Channels(3)
RON
VCC = 5.0V; IB =-10mA ;
VA2 /VA1=3.5
IOFF(A1) or VCC = 5.5V; VNO or VNC = 4.5V, 1.0V;
A1 or A2 Off Leakage Current
IOFF(A2)
VCOM = 1.0V, 4.5 V
B On Leakage Current
ION(B)
VCC = 5.5V; VA1 or VA2 = 4.5V, 1.0V;
VB = 1.0V, 4.5 V or floating
Digital I/O
0
VCC V
2.7
2.7
0.8
0.8
0.15
0.01 1 uA
0.01 1 uA
Input Voltage High
Input Voltage Low
Input Leakage Current
VIH Minimum High Level Input Voltage 1
V
VIL Maximum Low Level Input Voltage
0.5 V
IENB VENB = 0 or Vcc
0.01 1 uA
Note:
(1) Typical characteristics are at +5.0V supply and +25°C
(2) Flatness is defined as the difference between the maximum and minimum value of on resistance as
measured over the specified analog signal ranges.
(3) RON= RON(MAX) - RON(MIN), between A1 and A2 .
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