SP4273 Datasheet, PDF (1/10 Pages) SIPAT Co,Ltd – SPDT Broadband COMS

Product Description
The SP4273 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. It offers a simple
alternative solution to pin diode and mechanical relay switches.
The SP4273 SPDT Broadband 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
RFC
RF1
RF2
Product Specification
SP4273
SPDT Broadband COMS
DC – 3 GHz RF Switch
Features
• Single-pin or complementary CMOS logic
control inputs
• High ESD tolerance of 1.5 kV
• Low insertion loss: 0.50 dB at 1000 MHz,
0.65 dB at 2000 MHz
• Isolation of 34.5 dB at 1000 MHz, 25 dB at
2000 MHz
• Typical input 1 dB compression point of
+32 dBm
• Ultra-small SC-70 package
Figure 2. Package Type
6-lead SC-70
CMOS
Control
Driver
V1 V2
Table 1. Electrical Specifications @ +25 °C, V_DD = 3 V (Z_S = Z_L = 75 Ω)
Parameter
Conditions
Operation Frequency¹
DC - 3000
Insertion Loss
1000 MHz
2000 MHz
Isolation (RFC - RF1/RF2)
1000 MHz
2000 MHz
Isolation (RF1 - RF2)
1000 MHz
2000 MHz
Return Loss
1000 MHz
2000 MHz
‘ON’ Switching Time³
50% CTRL to 0.1 dB of final value, 1 GHz
‘OFF’ Switching Time³
50% CTRL to 25 dB isolation, 1 GHz
Video Feedthrough^2,3
Input 1 dB Compression³
Input IP3³
1000 MHz
1000 MHz, 19 dBm input power
Notes:
1. Device linearity will begin to degrade below 10 MHz.
2. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth.
3. Measured in a 50 Ω system.
Min
DC
32.5
23
38.5
26
30
Typical
0.50
0.65
34.5
25
40.5
28
18.5
14
0.725
0.625
<2
32
53
Max
3000
0.60
0.75
1.5
1.3
Units
MHz
dB
dB
dB
dB
dB
dB
dB
dB
µs
µs
mVpp
dBm
dBm
Tel: [phone] Fax: [phone] www.sipatsaw.com / [e-mail]
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