PE4274-EK PEREGRINE [Peregrine Semiconductor Corp.], PE4274-EK Datasheet - Page 4

• Manufacturer Part Number: PE4274-EK
• Manufacturer: PEREGRINE [Peregrine Semiconductor Corp.]

Table 5. Truth Table
Notes:
1. The operation of the PE4274 is not supported or characterized in the C1 = High and C2 = High state.
Figure 4. Typical Application Block Diagram
The PE4274 provides the high isolation
required by FCC part 15.115 regulation
between the television antenna and the cable
plant. The advantage of the PE4274 is that
device isolation / thru performance is
maintained when power is removed. This
Copyright © Peregrine Semiconductor Corp. 2005
Page 4 of 12
CATV Input
CATV Input
Antenna Input
80dB 54 – 216MHz
60dB 216 – 550MHz
55dB 550 – 806MHz
Antenna Input
80dB 54 – 216MHz
60dB 216 – 550MHz
55dB 550 – 806MHz
V
OFF
ON
ON
ON
ON
DD
High
High
Low
Low
Low
C1
Splitter
Splitter
Power
Power
PE4274
SPDT
Dual Tuner DTV / DVR / Set-top Box
High
High
Low
Low
Low
C2
unique feature makes the PE4274 ideal for set-top
box and VCR applications.
The PE4274 supports signal flow from RFC to
RF1 and RF2 termination in the unpowered state;
similar to the powered state with C1=High,
C2=Low.
PE4274
PE4274
SPDT
SPDT
DTV-Tuner
File No. 70/0185-01A │ UltraCMOS™ RFIC Solutions
RFC – RF1
OFF
OFF
N/A
ON
ON
1
DTV Tuner
DTV-Tuner
Preliminary Specification
RFC – RF2
N/A
OFF
OFF
OFF
ON
1
PE4274