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Typical operating circuit – Rainbow Electronics MAX2684 User Manual

Page 16

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MAX2683/MAX2684

3.5GHz Downconverter Mixers
with Selectable LO Doubler

16

______________________________________________________________________________________

Typical Operating Circuit

1

2

16

15

14

13

12

11

10

9

BIAS

GND

IFOUT+

GND

GND

IFOUT-

GND

GND

3

4

5

6

7

8

V

CC

GND

GND

RFIN

GND

ENX2

LOX2

LOX1

100pF

R

BIAS

1.5k

1pF

10

µF

3300pF

1.2nH

V

CC

RF

INPUT

ON

OFF

LO DOUBLER
ENABLE

1.2k

100pF

100pF

100pF

3.9nH

HALF-FREQUENCY
LO INPUT

FULL-FREQUENCY
LO INPUT

1.5k

39nH

8.2pF

3.3pF

8.2pF

0.01

µF

39nH

BALUN

300MHz

IF OUTPUT

MAX2683

14

13

12

11

IFOUT+

GND

GND

IFOUT-

300

6.8nH

8.2pF

8.2pF

0.01

µF

6.8nH

BALUN

900MHz

IF OUTPUT

V

CC

V

CC

MAX2684 IF OUTPUT DIFFERENTIAL
TO SINGLE-ENDED CONVERSION NETWORK.

NOTE: EVENLY SOLDER EXPOSED PAD (EP)
ON BOTTOM OF DEVICE TO GROUND PLANE.