Datasheet HMC349LP4C Datasheet (hittite)

查询HMC349LP4C供应商

14

MICROWAVE CORPORATION

Typical Applications

The HMC349LP4C is ideal for:

• Basestation Infrastructure

• MMDS & 3.5 GHz WLL

• CATV/CMTS

• Test Instrumentation

Functional Diagram

v00.0304

HMC349LP4C

HIGH ISOLATION SPDT

NON-REFLECTIVE SWITCH, DC - 4.0 GHz

Features

High Isolation: 67 dB @ 1 GHz
62 dB @ 2 GHz

Single Positive Control: 0/+5V

+52 dBm Input IP3

Non-Refl ective Design

All Off State

2

16 mm

General Description

The HMC349LP4C is a high isolation non­refl ective DC to 4 GHz GaAs MESFET SPDT
switch in a low cost leadless surface mount
package. The switch is ideal for cellular/PCS/3G
basestation applications yielding 60 to 65 dB
isolation, low 0.9 dB insertion loss and +52 dBm
input IP3. Power handling is excellent up through
the 3.5 GHz WLL band with the switch offering a
P1dB compression point of +31 dBm. On-chip
circuitry allows a single positive voltage control
of 0/+5 Volts at very low DC currents. An enable
input (EN) set to logic high will put the switch in
an “all off” state.

Leadless QFN SMT Package

Electrical Specifi cations, T

Insertion Loss

SWITCHES - SMT

Isolation (RFC to RF1/RF2)

Return Loss (On State)

Return Loss (Off State) 0.5 - 4.0 GHz 15 dB

Input Power for 1 dB Compression 0.25 - 4.0 GHz 27 31 dBm

Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)

Switching Speed DC - 4.0 GHz

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= +25° C, Vctl = 0/+5 Vdc, Vdd = +5 Vdc, 50 Ohm System

A

Parameter Frequency Min. Typ. Max. Units

tON, tOFF (50% CTL to 10/90% RF)

tRISE, tFALL (10/90% RF)

DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz

DC - 1.0 GHz
DC - 4.0 GHz

DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz

0.25 - 1.0 GHz

1.0 - 2.0 GHz

2.0 - 3.0 GHz

3.0 - 4.0 GHz

60
55

0.9

1.0

1.2

1.4

67
62

20
15
13

52
50
49
46

50

120

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]

Order Online at www.hittite.com

1.2

1.3

1.5

1.7

dB
dB
dB
dB

dB
dB

dB
dB
dB

dBm
dBm
dBm
dBm

ns
ns

MICROWAVE CORPORATION

v00.0304

HMC349LP4C

HIGH ISOLATION SPDT

NON-REFLECTIVE SWITCH, DC - 4.0 GHz

GaAs MMIC SUB-HARMONICALLY PUMPED MIXER 17 - 25 GHz

Insertion Loss

0

-1

-2

-3

INSERTION LOSS (dB)

-4

-5
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

FREQUENCY (GHz)

+25C
+85C

-40C

Return Loss

0

-5

-10

-15

-20

RETURN LOSS (dB)

-25

-30
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

Note: RFC is refl ective in “all off” state.

RFC
RF1, RF2 ON

RF1, RF2 OFF

FREQUENCY (GHz)

Isolation Between
Ports RFC and RF1 / RF2

0

-10

-20

-30

-40

-50

ISOLATION (dB)

-60

-70

-80
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

RF1
RF2

ALL OFF

FREQUENCY (GHz)

Isolation Between Ports RF1 and RF2

0

-10

-20

-30

-40

-50

ISOLATION (dB)

-60

-70

-80

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

RFC-RF1 ON
RFC-RF2 ON

FREQUENCY (GHz)

14

0.1 and 1 dB Input Compression Point

34

32

30

28

26

24

22

INPUT COMPRESSION (dBm)

20

01234

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]

0.1 dB Compression Point
1 dB Compression Point

FREQUENCY (GHz)

Order Online at www.hittite.com

Input Third Order Intercept Point

60

58

56

54

52

50

IIP3 (dBm)

48

46

44

42

40

01234

+25C
+85C

-40C

FREQUENCY (GHz)

SWITCHES - SMT

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MICROWAVE CORPORATION

v00.0304

HMC349LP4C

HIGH ISOLATION SPDT

NON-REFLECTIVE SWITCH, DC - 4.0 GHz

14

Absolute Maximum Ratings

RF Input Power (Vctl = 0V/+5V)
(0.25 - 4 GHz)

Supply Voltage Range (Vdd) +7 Vdc

Control Voltage Range (Vctl) -1V to Vdd +1V

Hot Switch Power Level
(Vdd = +5V)

Channel Temperature 150 °C

Continuous Pdiss (T = 85 °C)
(derate 12 mW/°C above 85 °C)

Thermal Resistance 87 °C/W

Storage Temperature -65 to +150 °C

Operating Temperature -40 to +85 °C

Note: DC blocking capacitors are required at ports RFC,
RF1 and RF2. Their value will determine the lowest trans­mission frequency.

+30 dBm (T = +85 °C)

+30 dBm

0.75 W

TTL/CMOS Control Voltages

State Bias Condition

Low 0 to +0.8 Vdc @ <1 µA Typical

High +2.0 to +5.0 Vdc @ 30 µA Typical

Truth Table

Control Input Signal Path State

Vctl EN RFC - RF1 RFC - RF2

Low Low OFF ON

High Low ON OFF

Low High OFF OFF

High High OFF OFF

Bias Voltage & Current

Vdd Range = +5.0 Vdc ± 10%

Vdd

(Vdc)

+5.0 2.3 5.0

Idd (Typ.)

(mA)

Idd (Max.)

(mA)

Outline Drawing

SWITCHES - SMT

14 - 226

NOTES:

1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED

PLASTIC SILICA AND SILICON IMPREGNATED.

2. LEADFRAME MATERIAL: COPPER ALLOY

3. LEADFRAME PLATING: Sn/Pb SOLDER

4. DIMENSIONS ARE IN INCHES [MILLIMETERS].

5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.

6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.

7. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED

TO PCB RF GROUND.

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]

Order Online at www.hittite.com

v00.0304

MICROWAVE CORPORATION

HMC349LP4C

HIGH ISOLATION SPDT

NON-REFLECTIVE SWITCH, DC - 4.0 GHz

Pin Descriptions

Pin Number Function Description Interface Schematic

1 Vdd Supply Voltage.

2 Vctl Control input. See truth and control voltage tables.

3, 9, 12 RFC, RF1, RF2

4, 6, 7, 8, 13, 14,

15, 16

5 EN Enable. See truth and control voltage tables.

10, 11 GND

N/C

These pins are DC coupled and matched to 50 Ohms.

Blocking capacitors are required.

No connection. These pins may be connected to RF

ground. Performance will not be affected.

Package bottom must also be connected to

PCB RF ground.

14

SWITCHES - SMT

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]

Order Online at www.hittite.com

14 - 227

MICROWAVE CORPORATION

Evaluation PCB

v00.0304

HMC349LP4C

HIGH ISOLATION SPDT

NON-REFLECTIVE SWITCH, DC - 4.0 GHz

14

List of Material for Evaluation PCB 106975*

Item Description

J1 - J3 PC Mount SMA RF Connector

J4 - J8 DC Pin

C1 - C3 100 pF Capacitor, 0402 Pkg.

U1 HMC349LP4C SPDT Switch

SWITCHES - SMT

PCB** 106965 Evaluation PCB

** Circuit Board Material: Rogers 4350

* Reference this number when ordering complete evaluation PCB.

The circuit board used in the fi nal application should
be generated with proper RF circuit design techniques.
Signal lines at the RF port should have 50 ohm imped­ance and the package ground leads and backside
ground slug should be connected directly to the ground
plane similar to that shown above. The evaluation circuit
board shown above is available from Hittite Microwave
Corporation upon request.

14 - 228

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]

Order Online at www.hittite.com

MICROWAVE CORPORATION

Notes:

v00.0304

HMC349LP4C

HIGH ISOLATION SPDT

NON-REFLECTIVE SWITCH, DC - 4.0 GHz

14

SWITCHES - SMT

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]

Order Online at www.hittite.com

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