For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, 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

11

11 - 7

Pin Number

Function

description

interface schematic

1, 4, 9, 12

GNd

these pins and the ground paddle must be connected

to a high quality rF/dc ground.

2, 3

loP, loN

differential lo input ports. this device may be driven in either

differential or single ended mode. in single ended mode, one

port should be driven by the lo source while the other port may

be terminated with a 50Ω resistor to ground.

5, 8, 13

N/c

No connection required. these pins may be connected to rF/

dc ground without affecting performance.

6, 7

qN, qP

differential quadrature baseband input. these are high

impedance ports. the nominal recommended bias voltage is

between 1.2 - 1.4V. the nominal recommended baseband input

voltage is 1.2V peak to peak differential. By adjusting the dc

bias voltage on ports qN & qP, the carrier suppression of the

device can be optimized for a specific frequency band and lo

power level. the typical offset voltage for optimization is less

than 15 mV.

the amplitude and phase difference between the i and q inputs

can be adjusted in order to optimize the sideband suppression

for a specific frequency band and lo power level.

10, 11

rFN, rFP

rF output port. this port is matched to 50 ohms.

a series capacitor should be connected to this port in

order to prevent the dc supply voltage from appearing

on the customer’s Pc board.

14, 15

iP, iN

differential quadrature baseband input. these are high

impedance ports. the nominal recommended bias voltage is

between 1.2 - 1.4V. the nominal recommended baseband input

voltage is 1.2V peak to peak differential. By adjusting the dc

bias voltage on ports iN & iP, the carrier suppression of the

device can be optimized for a specific frequency band and lo

power level. the typical offset voltage for optimization is less

than 15 mV.

the amplitude and phase difference between the i and q inputs

can be adjusted in order to optimize the sideband suppression

for a specific frequency band and lo power level.

16

Vcc

supply voltage. set to 3.0V for nominal operation. the nominal

current for this port is 93 ma.

Pin Descriptions

SiGe WIDEBAND DIRECT

MODULATOR RFIC, 4 - 7 GHz

v05.0811