12 - 44

For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

12

Pin Number

Function

Description

Interface Schematic

1RFIN

This pin is DC coupled and matched to 50 Ohms.

A blocking capacitor is needed.

2GND

These pins and package bottom must

be connected to RF/DC ground.

3 - 7

B4, B3,

B2, B1, B0

See Truth Table, Control Voltage Table

and Timing Diagram.

8LE

9DATA

10

CLK

12

PUP2

13

PUP1

14

P/S

15

SERIAL OUT

Serial input data delayed by 5 clock cycles.

16

IBIAS

Bias current to amplifier. External inductor is needed.

17

ISET

External bias resistor to adjust the current of the amplifier.

18

Vdd

Supply Voltage.

19

FB

Feedback capacitance for the amplifier.

Pin Descriptions

HMC628LP4 / 628LP4E

v07.0410

BiCMOS MMIC 5-Bit DIGITAL

VARIABLE GAIN AMPLIFIER, 50 - 800 MHz

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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

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D