Document
HMC646LP2 / 646LP2E
v02.1009
GaAs MMIC 40W FAILSAFE SWITCH, 0.1 - 2.1 GHz
Typical Applications
The HMC646LP2(E) is ideal for: • LNA Protection & T/R Switching • TD-SCDMA / 3G Infrastructure • Satellite Subscriber Terminals • Private Mobile Radio & Public Safety Handsets • Automotive Telematics
Features
High Input P0.1dB: +46 dBm Tx Low Insertion Loss: 0.4 dB High IIP3: +74 dBm Single Positive Control: 0/+3V to 0/+8V Failsafe operation; Tx ‘On’ when unpowered 2x2mm DFN SMT Package
SWITCHES - SPDT - SMT
Functional Diagram
11
General Description
The HMC646LP2(E) is an SPDT switch in a leadless DFN surface mount plastic package for use in transmit / receive and LNA protection applications which require very low distortion and high power handling of up to 40 watts with less than 10% duty cycle. This robust switch can control signals from 100 - 2100 MHz* and is ideal for TD-SCDMA / 3G repeaters, PMR, automotive telematics, and satellite subscriber terminal applications. The design provides exceptional P0.1dB of +46 dBm and +74 dBm IIP3 on the Transmit (Tx) port. The failsafe topology provides a low loss path from Tx to RFC, when no DC power is available.
11 - 216
Electrical Specifications, TA = +25°C, Vdd= 5V, Vctl = 0/+5 Vdc, 50 Ohm System*
Parameter
Min. Typ. Max. Min. Typ. Max.
Frequency Range
869 - 960
1525 - 1661
Insertion Loss
Tx - RFC RFC - Rx
0.3 0.6 0.4 0.7
0.6 0.9 0.8 1.1
Isolation
Tx - RFC RFC - Rx
20 28
27 38
15 22 20 30
Return Loss
Tx - RFC RFC - Rx
17 25
27 20
Input Power for 0.1 dB Compression
Tx - RFC RFC - Rx
44 20
46 20
Input Third Order Intercept (Two-tone input power = +17 dBm each tone)
Tx - RFC RFC - Rx
71 41
74 42
Switching Characteristics tRISE, tFALL (10/90% RF) tON, (50% CTL to 90% RF)
tOFF (50% CTL to 10% RF)
100 320 320
100 320 320
* Specifications and data reflect HMC646LP2(E) measured using the respective application circuits for each designated frequency band found herein
Min. Typ. Max
2010 - 2025
0.7 1.0 1.3 1.7
12 17 25 32
25 12
46 20
Units
MHz
dB dB
dB dB
dB dB
dBm dBm
74 dBm 34 dBm
100 ns 320 ns 320 ns
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v02.1009
Insertion Loss vs. Temperature, Tx with 915 MHz Tuning
0
INSERTION LOSS (dB)
-0.5
-1
+25C +85C
-40C
-1.5
-2 0.8 0.85 0.9 0.95
FREQUENCY (GHz)
1
Isolation with 915 MHz Tuning
0
-10 RFC to Tx RFC to RX
-20
ISOLATION (dB)
-30
-40
-50 0.8
0.85 0.9 0.95 FREQUENCY (GHz)
1
HMC646LP2 / 646LP2E
GaAs MMIC 40W FAILSAFE SWITCH, 0.1 - 2.1 GHz
Insertion Loss vs. Temperature, Rx with 915 MHz Tuning
0
-0.25
INSERTION LOSS (dB)
-0.5
-0.75
-1
-1.25 -1.5
+25C +85C -40C
-1.75
-2 0.8 0.85 0.9 0.95
FREQUENCY (GHz)
1
Return Loss with 915 MHz Tuning
0
Tx, Input
Tx, Output
-10
Rx, Input Rx, Output
-20
RETURN LOSS (dB)
-30
-40 0.8
0.85 0.9 0.95 FREQUENCY (GHz)
1
11
SWITCHES - SPDT - SMT
IP3 (dBm)
Input IP3 vs. Voltage with 915 MHz Tuning
75 70 65 60
Tx 55 Rx 50 45 40 35 30 25
345678 VOLTAGE (V)
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INSERTION LOSS (dB) INSERTION LOSS (dB)
v02.1009
Insertion Loss vs. Temperature, Tx with 1600 MHz Tuning
0
-0.5
-1
-1.5
-2 1.5
+25C +85C -40C
1.55 1.6 1.65 FREQUENCY (GHz)
1.7
11
Isolation with 1600 MHz Tuning
0
-10 RFC to Tx RFC to RX
-20
-30
-40
-50 1.5
1.55 1.6 1.65 FREQUENCY (GHz)
1.7
HMC646LP2 / 646LP2E
GaAs MMIC 40W FAILSAFE SWITCH, 0.1 - 2.1 GHz
Insertion Loss vs. Temperature, Rx with 1600 MHz Tuning
0
-0.5
-1
-1.5
-2 1.5
+25C +85C -40C
1.55 1.6 1.65 FREQUEN.