12 - 9

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

HMC707LP5 / 707LP5E

v04.0409

0.5 dB LSB 6-BIT DIGITAL

VARIABLE GAIN AMPLIFIER, 700 - 1200 MHz

Pin Descriptions

pin number

function

description

interface schematic

1

rfin

rf input to the first amplifier (amp1)

this pin is matched to 50 Ohms.

2, 3, 21,

30, 32

n/C

no connection necessary. these pins may be connected to

rf/dC ground without affecting performance.

4

res

this pin is used to set the dC current of the first amplifier by

selection of external bias resistor. see application circuit.

5

serOUt

serial input data delayed by 6 clock cycles.

7, 6

pUp1, pUp2

see truth table, control voltage

table and timing diagram.

9 - 14

d0 - d5

8

Vdd1

supply voltage

15

p/s

see truth table, control voltage

table and timing diagram.

16

ClK

17

serin

18

le

19, 23, 25,

26, 28

gnd

these pins and package bottom

must be connected to rf/dC ground.