10 W, Failsafe, GaAs, SPDT Switch
Data Sheet
HMC546LP2E
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FEATURES
High input P0.1dB: 40 dBm Tx
Low insertion loss: 0.4 dB
High input IP3: 67 dBm
Positive control: 0 V low control; 3 V to 8 V high control
Failsafe operation: Tx is on when no dc power is applied
APPLICATIONS
LNA protection, WiMAX, and WiBro
Cellular, PCS, 3G, and TD-SCDMA infrastructure
Private mobile radio and public safety handsets
Automotive telematics
FUNCTIONAL BLOCK DIAGRAM
6
5
1
2
3
4
Tx
V
CTL
ACG
RFC
PACKAGE
BASE
V
DD
Rx
HMC546LP2E
13975-001
F
igure 1.
GENERAL DESCRIPTION
The HMC546LP2E is a failsafe SPDT switch in a leadless DFN
surface-mount plastic package for use in transmit/receive and
LNA protection applications that require very low distortion and
high power handling of up to 10 watts.
The HMC546LP2E requires external matching and is suitable
for narrow-band applications within 200 MHz to 2700 MHz.
Th
is narrow-band switch is well suited for WiMAX and WiBro
repeaters, private mobile radio (PMR), and automotive
telematic applications. The design provides exceptional P0.1dB
of 40 dBm and IIP3 of 65 dBm on the transmit (Tx) port. The
failsafe topology allows the switch to provide a low loss path
from RFC to Tx, when no dc power is available.
