HMC646LP2 / 646LP2E
v02.1009
GaAs MMIC 40W FAILSAFE
SWITCH, 0.1 - 2.1 GHz
Typical Applications
Features
The HMC646LP2(E) is ideal for:
• LNA Protection & T/R Switching
• TD-SCDMA / 3G Infrastructure
• Satellite Subscriber Terminals
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
• Private Mobile Radio & Public Safety Handsets
• Automotive Telematics
General Description
Functional Diagram
The HMC646LP2(E) is an SPDT switch in a leadless
DFN surface mount plastic package for use in trans-
mit / 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 excep-
tional 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.
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Electrical Specifications, TA = +25°C, Vdd= 5V, Vctl = 0/+5 Vdc, 50 Ohm System*
Parameter
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max
Units
MHz
Frequency Range
Insertion Loss
869 - 960
1525 - 1661
2010 - 2025
Tx - RFC
RFC - Rx
0.3
0.4
0.6
0.7
0.6
0.8
0.9
1.1
0.7
1.3
1.0
1.7
dB
dB
Tx - RFC
RFC - Rx
20
28
27
38
15
20
22
30
12
25
17
32
dB
dB
Isolation
Tx - RFC
RFC - Rx
17
25
27
20
25
12
dB
dB
Return Loss
Input Power for 0.1 dB
Compression
Tx - RFC
RFC - Rx
44
20
46
20
46
20
dBm
dBm
Input Third Order
Intercept (Two-tone input
power = +17 dBm each tone)
Tx - RFC
RFC - Rx
71
41
74
42
74
34
dBm
dBm
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
100
320
320
ns
ns
ns
* Specifications and data reflect HMC646LP2(E) measured using the respective application circuits for each
designated frequency band found herein
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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11 - 216
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