Typical application circuit – Rainbow Electronics MAX19985A User Manual

Page 22

Advertising
background image

MAX19985A

Dual, SiGe, High-Linearity, 700MHz to 1000MHz
Downconversion Mixer with LO Buffer/Switch

22

______________________________________________________________________________________

Typical Application Circuit

MAX19985A

5

6

4

3

23

22

24

IFDBIAS

IFD+

IFD-

LEXTD

V

CC

25

V

CC

IFMBIAS

IFM+

IFM-

V

CC

LEXTM

LOMBIAS

10

11

V

CC

13

14

15

16

35

36

34

32

31

30

GND

V

CC

GND

GND

LOSEL

GND

GND

GND

12

33

7

21

GND

GND

C15

9

19

RFDIV

LO1

V

CC

8

20

TAPDIV

GND

2

26

GND

R1

TAPMAIN

1

27

LO2

LO1

LO2

+

N.C.

N.C.

18

28

V

CC

LODBIAS

17

29

RFMAIN

L3

L2

L1

EXPOSED

PAD

C16

C20

C19

C21

LO
SELECT

IF MAIN
OUTPUT

IF DIV
OUTPUT

C14

V

CC

RF DIV

INPUT

RF MAIN

INPUT

C1

C8

C3

C2

C4

V

CC

C5

V

CC

C6

C7

C18

V

CC

V

CC

C17

V

CC

R2

T1

4:1

R3

R4

L5

L4

C10

C11

C12

C9

V

CC

V

CC

C13

V

CC

R5

T2

4:1

R6

L6

R8

R7

U1

Advertising