HMC446
/
446E
v03.0805
GaAs MMIC 10W T/R
SWITCH, 824 - 894 MHz*
Typical Applications
The HMC446 / HMC446E is ideal for:
• ISM/Cellular Portables/Handsets
• Automotive Telematic Applications
• Mobile Radio
Features
Low Insertion Loss: 0.6 dB
High IIP3: +65 dBm
High Input P0.1 dB: +40 dBm Tx
Positive Control: 0/+5V to 0/+8V
Ultra Small Package: SOT26
8
SWITCHES - SMT
Functional Diagram
General Description
The HMC446 & HMC446E are low-cost SPDT swit-
ches in 6-lead SOT26 packages for use in transmit-
receive applications which require very low distortion
at high signal power levels, up to 10 watts. The
device can control signals from 824 - 894 MHz* and
is especially suited for cellular booster and auto-
motive telematic applications. The design provides
exceptional P0.1 dB of +40 dBm and +65 dBm IIP3
on the Transmit (Tx) port. The Tx port is a reflective
open when “Off” while the Rx port is a reflective short
when “Off”. On-chip circuitry allows single positive
supply operation at very low DC current with a single
control input (Vctl).
Electrical Specifications,
T
A
= +25° C, Vctl = 0/+8 Vdc, 50 Ohm System
Parameter
Insertion Loss
Isolation
Return Loss
Input Power for 0.1 dB Compression
Input Third Order Intercept
(Two-tone input power = +19 dBm each tone)
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
* External component values can be adjusted to enable HMC446 to operate in other frequency bands.
Contact HMC with your specific requirement.
Tx - RFC
RFC - Rx
Tx - RFC
RFC - Rx
Tx - RFC
RFC - Rx
Tx - RFC
RFC - Rx
Tx - RFC
RFC - Rx
Frequency*
824 - 849 MHz
824 - 894 MHz
824 - 849 MHz
824 - 894 MHz
824 - 849 MHz
824 - 894 MHz
824 - 849 MHz
824 - 894 MHz
824 - 849 MHz
824 - 894 MHz
824 - 894 MHz
4
90
ns
ns
38
28
18
29
Min.
Typ.
0.6
0.6
22
35
13
17
40
30
65
52
Max.
0.9
1.0
Units
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
8 - 256
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HMC446
/
446E
v03.0805
GaAs MMIC 10W T/R
SWITCH, 824 - 894 MHz*
Insertion Loss vs. Temperature, Tx
0
-0.5
INSERTION LOSS (dB)
-1
-1.5
-2
-2.5
-3
0.75
Tx, +25C
Tx, +85C
Tx, -40C
Insertion Loss vs. Temperature, Rx
0
-0.5
INSERTION LOSS (dB)
-1
-1.5
-2
-2.5
-3
0.75
Rx, +25C
Rx, +85C
Rx, -40C
8
0.9
0.8
0.85
0.9
0.8
0.85
FREQUENCY (GHz)
FREQUENCY (GHz)
Isolation
0
-5
-10
ISOLATION (dB)
-15
-20
-25
-30
-35
-40
0.75
RFC to Tx
RFC to Rx
Return Loss
0
Tx, Input
Tx, Output
Rx, Input
Rx, Output
-5
RETURN LOSS (dB)
-10
-15
-20
0.8
0.85
0.9
-25
0.75
0.8
0.85
0.9
FREQUENCY (GHz)
FREQUENCY (GHz)
Input Power Compression
@ 849 MHz, Vdd = 8.0V
0
Input Power Compression
@ 849 MHz, Vdd = 5.0V
0
INSERTION LOSS (dB)
-0.5
INSERTION LOSS (dB)
-0.5
-1
-1
-1.5
Tx
Rx
-1.5
Tx
Rx
-2
10
15
20
25
30
35
40
INPUT POWER (dBm)
-2
10
15
20
25
30
35
40
INPUT POWER (dBm)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
8 - 25
SWITCHES - SMT
HMC446
/
446E
v03.0805
GaAs MMIC 10W T/R
SWITCH, 824 - 894 MHz*
Absolute Maximum Ratings
Max. Input Power
(Vdd = +8V, V
CTL
= 0/+8V)
Supply Voltage (Vdd)
Control Voltage Range (Vctl)
Storage Temperature
Tx Port
Rx Port
41 dBm
33 dBm
+10 Vdc
-0.2 to Vdd
-65 to +150 °C
-40 to +85 °C
Truth Table
Control Input
Vctl (Vdc)
0.0
Vdd
Signal Path State
Tx to RFC
OFF
ON
RFC to Rx
ON
OFF
8
SWITCHES - SMT
Operating Temperature
Vdd = +5.0V to +8.0V ± 0.2V
Control Input Voltage Tolerances are ± 0.2 Vdc.
Do not operate continuously at power levels > 1 dB com-
pression and do not “hot switch” power levels greater than
+36 dBm (Vctl= +8V) into the Tx port and no greater than
+27 dBm into the Rx port.
DC blocking capacitors are required at ports RFC, Tx and
Rx. Inductors are required from Tx to RFC and Rx to RFC.
See Application Circuit Herein.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
5. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND
Package Information
Part Number
HMC446
HMC446E
Package Body Material
Low Stress Injection Molded Plastic
RoHS-compliant Low Stress Injection Molded Plastic
Lead Finish
Sn/Pb Solder
100% matte Sn
MSL Rating
MSL1
MSL1
[1]
Package Marking
[3]
H446
XXXX
446E
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
8 - 258
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HMC446
/
446E
v03.0805
GaAs MMIC 10W T/R
SWITCH, 824 - 894 MHz*
Pin Descriptions
Pin Number
1
Function
Tx
Description
This pin is DC coupled and matched to 50 Ohms.
Interface Schematic
2
GND
This pin must be connected to PCB RF ground.
3
Vctl
See Truth Table.
8
SWITCHES - SMT
4
Rx
This pin is DC coupled and matched to 50 Ohms.
5
Vdd
Supply Voltage
6
RFC
This pin is DC coupled and matched to 50 Ohms.
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
8 - 25
HMC446
/
446E
v03.0805
GaAs MMIC 10W T/R
SWITCH, 824 - 894 MHz*
Required Application Circuit
8
SWITCHES - SMT
Users must implement this application circuit with the HMC446 T/R switch for proper operation.
Note 1: L
Rx
= COILCRAFT 0402CS - 8N2XJB, 8.2 nH, 5% Tolerance Inductor
Note 2: L
Tx
= COILCRAFT 0603CS - 22NXJB, 22 nH, 5% Tolerance Inductor
Note 3: C1, C2, C3 = 330 pF Capacitor
Note 4: External component values can be adjusted to enable HMC446 to operate in other frequency bands.
Contact HMC with your specific requirement.
Note 5: Set logic gate & switch Vdd= +8V and use HC series logic to provide a buffered logic interface.
8 - 260
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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