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PE4271
Product Specification
Figure 3. Pin Configuration
Table 4. Operating Ranges
Parameter
Min
Typ
Max
Unit
V DD
1
6
RF2
V DD Power Supply
I DD Power Supply Current
2.7
3.0
8
3.3
20
V
μ A
GND
2
Exposed
Solder Pad
(bottom side)
5
GND
(V DD = 3V, V CTRL = 3V)
T OP Operating temperature
-40
85
°C
Control Voltage High
0.7xV DD
5
V
RF1
3
4
CTRL
Control Voltage Low
0
0.3xV DD
V
Figure 4. Typical Application Block Diagram
Table 2. Pin Descriptions
Premium
Channel
Filter
PE4271
Pin
No.
1
Pin
Name
V DD
Description
Nominal 3V supply connection.
CATVin
2-way
Splitter
PE4271
CATVout
2
GND
Ground connection. 2
3
RF1
RF port .
1
Table 5. Control Logic Truth Table
4
5
CTRL
GND
CMOS or TTL logic level:
High = RF1 to RF2 signal path
Low = RF1 isolated from RF2
Ground connection . 3
Control Voltage (CTRL)
High 1
Low
Signal Path (RF1 to RF2)
ON
OFF
6
RF2
RF port .
1
Notes: 1. CTRL accepts both CMOS and TTL voltage leads.
Notes: 1. Both RF pins must be held at 0 V DC or require external DC
blocking capacitors
2. The exposed pad must be soldered to the ground plane for
proper switch performance.
Table 3. Absolute Maximum Ratings
Electrostatic Discharge (ESD) Precautions
When handling this UltraCMOS? device, observe
the same precautions that you would use with other
ESD-sensitive devices. Although this device
Symbol
V DD
V I
T ST
P IN
V ESD
Parameter/Condition
Power supply voltage
Voltage on CTRL input
Storage temperature
Input power (50 ? ),
CTRL=1/CTRL=0
ESD voltage
(Human Body Model)
Min
-0.3
-0.3
-65
Max
4.0
5.5
150
33/24
500
Unit
V
V
°C
dBm
V
contains circuitry to protect it from damage due to
ESD, precautions should be taken to avoid
exceeding the rating specified in Table 3.
Device Description
The PE4271 high isolation SPST CATV Switch is
designed to support CATV applications such as
premium channel service connect/disconnect switch
blocks. This function is typically performed by bulky
Exceeding absolute maximum ratings may cause
permanent damage. Operation should be restricted
to the limits in the Operating Ranges table.
Operation between operating range maximum and
absolute maximum for extended periods may reduce
and expensive mechanical switches. The high
isolation characteristics (60 dB at 1 GHz, 85 dB at
5 MHz), high compression point, and an integrated
75 ? ( 0.25 watt) input termination make the PE4271
an ideal, low cost solution.
reliability.
The control logic input pin (CTRL) is typically driven
Latch-Up Avoidance
Unlike conventional CMOS devices, UltraCMOS?
devices are immune to latch-up.
Moisture Sensitivity Level
The Moisture Sensitivity Level rating for the
PE4271 in the 6-lead 3x3 DFN package is MSL1.
?2005-2009 Peregrine Semiconductor Corp. All rights reserved.
by a 3-volt CMOS logic level signal, and has a
threshold of 50% of V DD . For flexibility to support
systems that have 5-volt control logic drivers, the
control logic input has been designed to handle a 5-
volt logic HIGH signal. (A minimal current will be
sourced out of the V DD pin when the control logic
input voltage level exceeds V DD. )
Document No. 70-0149-05 │ UltraCMOS? RFIC Solutions
Page 2 of 8
Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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