SP4272 Datasheet, PDF (1/10 Pages) SIPAT Co,Ltd – SPDT Broadband CMOS

Product Description
The SP4272 RF Switch is designed for the TV tuner, PCTV, set
top box, DTV, DVR and general broadband applications. This
device offers industry leading broadband linearity, 1.5 kV ESD
tolerance and a simple CMOS interface. The device offers a
simple alternative solution to pin diode and mechanical relay
switches.
The SP4272 SPDT High Power RF Switch is manufactured on
SIPAT’s CMOS process, a patented variation of
silicon-on-insulator (SOI) technology on a sapphire substrate,
offering the performance of GaAs with the economy and
integration of conventional CMOS.
Figure 1. Functional Diagram
Product Specification
SP4272
SPDT Broadband CMOS
DC – 3 GHz RF Switch
Features
• High ESD tolerance of 1.5 kV
• Single-pin CMOS logic control
• Low insertion loss: 0.5 dB at 1000 MHz,
0.6 dB at 2000 MHz
• Isolation of 43 dB at 1000 MHz, 33.5 dB
at 2000 MHz
• Typical input 1 dB compression point of
+32 dBm
• Small 8-lead MSOP package
RFC
RF1
RF2
Figure 2. Package Type
8-lead MSOP
CMOS
Control
Driver
V_DD CTRL
Table 1. Electrical Specifications @ +25 °C, V_DD = 3 V (Z_S = Z_L = 75 Ω)
Parameter
Operation Frequency¹
Insertion Loss
Isolation – RFC to RF1/RF2
Isolation – RF1 to RF2
Return Loss
‘ON’ Switching Time³
‘OFF’ Switching Time³
Video Feedthrough^2,3
Input 1 dB Compression³
Conditions
DC – 3000
1000 MHz
2000 MHz
1000 MHz
2000 MHz
1000 MHz
2000 MHz
1000 MHz
2000 MHz
50% CTRL to 0.1 dB final value, 2 GHz
50% CTRL to 25 dB isolation, 2 GHz
1000 MHz
Min
41
31.5
41
32
30
Typ
0.5
0.6
43
33.5
43
34
19.5
16
500
500
<3
32
Max
0.6
0.7
1000
1000
Input IP3³
1000 MHz, 20 dBm input power
52
Notes:
1. Device linearity will begin to degrade below 5 MHz.
2. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth.
3. Measured in a 50 Ω system.
Tel: [phone] Fax: [phone] www.sipatsaw.com / [e-mail]
Units
MHz
dB
dB
dB
dB
ns
ns
mVpp
dBm
dBm
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