Datasheet

1. General description
The SA630 is a wideband RF switch fabricated in BiCMOS technology and incorporating
on-chip CMOS/TTL compatible drivers. Its primary function is to switch signals in the
frequency range DC to 1 GHz from one 50  channel to another. The switch is activated
by a CMOS/TTL compatible signal applied to the enable channel 1 pin (ENCH1).
The extremely low current consumption makes the SA630 ideal for portable applications.
The excellent isolation and low loss makes this device a suitable replacement for PIN
diodes.
The SA630 is available in an 8-pin SO (surface-mounted miniature) package.
2. Features and benefits
 Wideband (DC to 1 GHz)
 Low through loss (1 dB typical at 200 MHz)
 Unused input is terminated internally in 50 
 Excellent overload capability (1 dB gain compression point +18 dBm at 300 MHz)
 Low DC power (170 A from 5 V supply)
 Fast switching (20 ns typical)
 Good isolation (off channel isolation 60 dB at 100 MHz)
 Low distortion (IP3 intercept +33 dBm)
 Good 50  match (return loss 18 dB at 400 MHz)
 Full ESD protection
 Bidirectional operation
3. Applications
 Digital transceiver front-end switch
 Antenna switch
 Filter selection
 Video switch
 FSK transmitter
SA630
Single-Pole Double-Throw (SPDT) switch
Rev. 3 — 23 July 2014 Product data sheet