Datasheet HMC307QS16G Datasheet (hittite)

查询HMC307供应商

MICROWAVE CORPORATION

Typical Applications

The HMC307QS16G is ideal for:

• Cellular

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• PCS, ISM, MMDS

• Wireless Local Loop

Functional Diagram

ATTENUATORS - SMT

v06.0503

HMC307QS16G

1dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, DC - 4 GHz

Features

1 dB LSB Steps to 31 dB
Single Control Line Per Bit
+/- 0.5 dB Typical Bit Error
Miniature QSOP-16 Package: 29.4 mm

General Description

The HMC307QS16G is a broadband 5-bit GaAs IC
digital attenuator in a 16 lead QSOP grounded base
surface mount plastic package. Covering DC to 4
GHz, the insertion loss is less then 2 dB typical. The
attenuator bit values are 1 (LSB), 2, 4, 8, and 16 dB
for a total attenuation of 31 dB. Attenuation accu­racy is excellent at ± 0.5 dB typical with an IIP3 of up
to +44 dBm. Five bit control voltage inputs, toggled
between 0 and -5V, are used to select each attenua­tion state at less than 50 uA each. A single V ee bias
of -5V allows operation down to DC . This product is
an excellent alternative to the HMC235QS16G.

2

Electrical Specifi cations, T

Parameter Frequency Min. Typical Max. Units

Insertion Loss DC - 1.4 GHz

Attenuation Range DC - 4.0 GHz 31 dB

Return Loss (RF1 & RF2, All Atten. States) DC - 1.4 GHz

Attenuation Accuracy: (Referenced to Insertion Loss)
1 - 20 dB States
21 - 31 dB States
1 - 15 dB States
16 - 31 dB States

Input Power for 0.1 dB Compression 0.5 - 4.0 GHz 24 dBm

Input Third Order Intercept Point
(Two-tone Input Power = 0 dBm Each Tone)

Switching Characteristics

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

= +25° C, Vee = -5V & VCTL= 0/Vee

A

1.4 - 2.3 GHz

2.3 - 2.7 GHz

2.7 - 4.0 GHz

1.4 - 2.3 GHz

2.3 - 2.7 GHz

2.7 - 4.0 GHz

DC - 2.7 GHz
DC - 2.7 GHz

2.7 - 4.0 GHz

2.7 - 4.0 GHz

0.5 - 4.0 GHz 44 dBm

DC - 4.0 GHz

11
11
10

8

± 0.2 + 3% of Atten. Setting Max
± 0.3 + 5% of Atten. Setting Max
± 0.3 + 5% of Atten. Setting Max

± 0.6 + 10% of Atten. Setting Max

1.8

1.9

2.0

2.1

15
17
18
15

140
160

2.2

2.4

2.5

2.7

dB
dB
dB
dB

dB
dB
dB
dB

dB
dB
dB
dB

ns
ns

9 - 50

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

v06.0503

HMC307QS16G

1 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, DC - 4 GHz

GaAs MMIC SUB-HARMONICALLY PUMPED MIXER 17 - 25 GHz

Return Loss RF1, RF2

Insertion Loss

0

-0.5

-1

-1.5

-2

-2.5

INSERTION LOSS (dB)

-3

-3.5

-4
0 0.5 1 1.5 2 2.5 3 3.5 4

-40 C

+85 C

FREQUENCY (GHz)

+25 C

Normalized Attenuation

(Only Major States are Shown)

0

-5

-10

-15

-20

-25

-30

NORMALIZED ATTENUATION (dB)

-35
0 0.5 1 1.5 2 2.5 3 3.5 4

4 dB

31 dB

8 dB

16 dB

FREQUENCY (GHz)

2 dB

1 dB

(Only Major States are Shown)

0

-5

-10

-15

-20

-25

RETURN LOSS (dB)

-30

-35

-40
0 0.5 1 1.5 2 2.5 3 3.5 4

31 dB

1 dB

FREQUENCY (GHz)

8 dB

Absolute Bit Error
vs. Attenuation State

2

1.5

1

BIT ERROR (dB)

0.5

0

1 4 7 10 13 16 19 22 25 28 31

3.5 GHz

1.9 GHz

0.9 GHz

ATTENUATION STATE (dB)

0.1 GHz

2, 4 dB

16 dB

2.4 GHz

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ATTENUATORS - SMT

Absolute Bit Error vs. Frequency

(Only Major States are Shown)

2

1.5

1, 2 & 4 dB

1

BIT ERROR (dB)

0.5

0

0 0.5 1 1.5 2 2.5 3 3.5 4

31 dB

16 dB

FREQUENCY (GHz)

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

Relative Phase vs. Frequency

(Only Major States are Shown)

100

80

60

40

8 dB

Order Online at www.hittite.com

20

RELATIVE PHASE (deg.)

0

-20
0 0.5 1 1.5 2 2.5 3 3.5 4

31 dB

16 dB

FREQUENCY (GHz)

8 dB

4 dB

1, 2 dB

9 - 51

MICROWAVE CORPORATION

v06.0503

HMC307QS16G

1 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, DC - 4 GHz

T ruth T able

V1

9

16 dBV28 dBV34 dBV42 dBV51 dB

Low Low Low Low Low Reference I.L.
Low Low Low Low High 1 dB
Low Low Low High Low 2 dB
Low Low High Low Low 4 dB
Low High Low Low Low 8 dB

High Low Low Low Low 16 dB

High High High High High

Any combination of the above states will provide an attenuation
approximately equal to the sum of the bits selected.

Application Circuit

ATTENUATORS - SMT

Control Voltage Input

Attenuation

State

RF1 - RF2

31 dB

Max. Atten.

Control V oltage

State Bias Condition

Low 0 to -3V @ 70 uA Typ.

High Vee + 0.8V @ 5 uA Typ.

Note: Vee = -5V

± 10%

Bias Voltage & Current

Vee Range = -5.0 Vdc ± 10%

Vee

(VDC)

-5.0 3 6

DC Blocking Capacitors C1 & C2 are
required on RF1 & RF2. Choose C1 = C2 =
100 pF ~ 0.1 uF to allow lowest customer
specifi c frequency to pass with minimal
loss. R1= 5K Ohm is required to supply
voltage to the circuit through either Pin 11
or Pin 14.

lee (Typ.)

(mA)

lee (Max.)

(mA)

9 - 52

Suggested Driver Circuit

(One Circuit Required Per Bit Control Input)

Simple driver using inexpensive standard logic ICs pro vides f ast s witching using minimum DC current. * Recommended value
to suppress unwanted RF signals at V1 - V5 control lines.

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

v06.0503

Absolute Maximum Ratings

Control Voltage (V1 - V5) Vee - 0.5 Vdc

HMC307QS16G

1 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, DC - 4 GHz

Bias Voltage (V ee) -7.0 Vdc

Storage Temperature -65 to +150 °C

Operating Temperature -40 to +85 °C

RF Input Power (0.5 - 4 GHz) +26 dBm

Outline Drawing

9

ATTENUATORS - SMT

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

9 - 53

9

MICROWAVE CORPORATION

Evaluation Circuit Board

v06.0503

HMC307QS16G

1 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, DC - 4 GHz

ATTENUATORS - SMT

The circuit board used in the fi nal application should use RF circuit design techniques. Signal lines should have 50
ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane
similar to that shown. A suffi cient number of via holes should be used to connect the top and bottom ground planes.
The evaluation circuit board shown is available from Hittite upon request.

List of Material

Item Description

J1 - J2 PC Mount SMA Connector

J3 - J9 DC Pin

R1 5k Ohm Resistor, 0402 Pkg.

R2 - R6 100 Ohm Resistor, 0402 Pkg.

C1, C2 0402 Chip Capacitor, Select Value for Lowest Frequency of Operation

U1 HMC307QS16G Digital Attenuator

* R2 - R6 = 100 Ohm.
These resistors are optional
and may be used to enhance
decoupling of the RF path
from the control inputs.

9 - 54

PCB* 103395 Evaluation PCB 1.5” x 1.5”

*Circuit Board Material: Rogers 4350

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:

v06.0503

HMC307QS16G

1 dB LSB GaAs MMIC 5-BIT DIGITAL

ATTENUATOR, DC - 4 GHz

9

ATTENUATORS - 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

9 - 55