Datasheet HMC110G16 Datasheet (Hittite)

MICROWAVE CORPORATION

GaAs MMIC SMT 5 - BIT DIGITAL ATTENUATOR DC - 2.0 GHz

HMC110G16

2

ATTENUATORS

SMT

FEBRUARY 2001

Features

BANDWIDTH: DC-2 GHz

BIT LEVELS: 1, 2, 4, 8, 16 dB

FAST SWITCHING: 6 nS

Guaranteed Performance

V01.0301

General Description

The HMC110G16 is a 5-bit surface mount
hermetically sealed digital attenuator.
Each bit is activated by applying a 0V
control, and then disabled by applying -5 V
control to the specified control pin. The
five primary attenuation states can be ac­tivated independently, or collectively for a
maximum combined attenuation level of
31 dB. See the non-hermetic wide band
DC - 6 GHz HMC110C14.

With 0/-5V Control, -40 to +85 deg C

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12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone] Web Site: www.hittite.com

2 - 6

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MICROWAVE CORPORATION

(

)

)

HMC110G16 SMT 5 - BIT DIGITAL ATTENUATOR DC - 2.0 GHz

HMC110G16

V01.0301

Insertion Loss

0

-2

-4

-6

-8

INSERTION LOSS (dB)

-10
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

FREQUENCY

GHz

Relative Attenuation

0

-5

-10

-15

-20

-25

-30

RELATIVE ATTENUATION (dB)

-35
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

FREQUENCY (GHz

FEBRUARY 2001

2

ATTENUATORS

SMT

Relative Phase

90

70

50

31 dB

30

10

RELATIVE PHASE (DEG)

-10
0 0.5 1 1.5 2 2.5 3

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone] Web Site: www.hittite.com

16 dB

1 dB, 2 dB, 4 dB

FREQUENCY

8 dB

3.5 4

Return Loss

-10

-12

-14

-16

RETURN LOSS (dB)

-18

-20
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

FREQUENCY (GHz)

2 - 7

MICROWAVE CORPORATION

HMC110G16 SMT 5 - BIT DIGITAL ATTENUATOR DC - 2.0 GHz

HMC110G16

2

ATTENUATORS

SMT

FEBRUARY 2001

Schematic

A1(10) B(9)

RF1 (11)

4dB 1dB

Pins 1, 12 - 16 and package bottom are GND.

A2(8)

GNDGND GNDGNDGNDGND GNDGND GNDGND

A3(7)

2dB

Absolute Maximum Ratings

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B5(3)

A4(6) B4(5)

8dB

A5(4)

RF2 (2)

16dB

HMC110

Truth Table

Control Input

4dBBit 1dB 2dB 8dB Bit 16dB Bit

A1 B1 A2 A3 A4 B4 A5 B5

Hi Lo Hi Hi Hi Lo Hi Lo Ref

V01.0301

Att

Set

Hi Lo Lo Hi Hi Lo Hi Lo 1dB

Control Voltages

State Bias Condition

Low 0 to -0.2V@20uA Max

High -3V@50uA Typ to -8V@500uA Max

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone] Web Site: www.hittite.com

Hi Lo Hi Lo Hi Lo Hi Lo 2dB

Lo Hi Hi Hi Hi Lo Hi Lo 4dB

Hi Lo Hi Hi Lo Hi Hi Lo 8dB

Hi Lo Hi Hi Hi Lo Lo Hi 16dB

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

2 - 8

MICROWAVE CORPORATION

HMC110G16 SMT 5 - BIT DIGITAL ATTENUATOR DC - 2.0 GHz

HMC110G16

V01.0301

Outline

0.012 TYP

+/-0.02

16 PLCS

B1
A1

RF1

0.070 TYP

0.230 SQ

(5.84 SQ)

MAX

A2 B4

A3 A4

A5
B5

RF2

ORIENTATION TAB

0.030 TYP

0.090 TYP

1. MATERIAL:

A) PACKAGE BODY - ALUMINA LOADED BOROSILICATE GLASS (#7052 CORNING.)

B) LEADS, BASE, & COVER - KOVAR (TM)

2. PLATING: ELECTROLYTIC GOLD 50 MICROINCHES MINIMUM, OVER

ELECTROLYTIC NICKEL 75 MICROINCHES MINIMUM.

3. ALL UNLABELED LEADS ARE GROUND AND PACKAGE BOTTOM

IS RF GROUND

PIN 1

0.310 +/-0.012

0.005

+0.002 /-0.001

16 PLCS

2 PLCS

0.065 MAX

0.050 +/-0.020

16 PLCS

CASE BOTTOM

IS GROUND

0.000/0.006

0.021 TYP

FEBRUARY 2001

2

ATTENUATORS

SMT

Suggested Driver Circuit

Vz=5.1V

Izt=50uA

COMPENSATED

DEVICES

CD4689

TTL

OR

CMOS

VCC

GND GND

10K

VCC

74HCT04 (TTL)

74HC04 (CMOS)

-5 VDC

Simple driver using inexpensive standard logic ICs provides fast switching using minimum DC current.
* Recommended values to suppress unwanted RF signals at A/B control lines. You may adjust for switching
speed considerations.

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone] Web Site: www.hittite.com

100Ω

100pF

100

100pF

*

*

GaAs

ATTENUATOR

CONTROL

*

Ω

*

A

B

2 - 9