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MAX2903EGI

200mW Single-Chip Transmitter ICs for 868MHz/915MHz ISM Bands

Maxim Integrated 

MAX2900

15

16, 17

18

—

—

19

—

—

20

21

22

23

24

—

25

26

—

—

27

—

28

—

GROUND

200mW Single-Chip Transmitter ICs for

868MHz/915MHz ISM Bands

PIN

MAX2901

MAX2903

15

16, 17

—

18

—

—

19

20, 21

—

—

22

23

24

—

25

—

26

—

27

—

28

—

GROUND

MAX2902

MAX2904

15

16, 17

—

—

18

19

—

20, 21

—

—

22

23

—

24

25

—

—

26

—

27

—

28

GROUND

Pin Description (continued)

NAME

PIN TYPE

FUNCTION

GND

RF-, RF+

N.C.

GND

D.C.

N.C.

DIVOUT

VCO-, VCO+

D1

D0

OSC

REFIN

VCC4

VCC4

REFOUT

D2

DIV63

N.C.

VCC5

VCC5

CPOUT

D.C.

GROUND

Supply Pin

RF Output

Not Connected

Supply Pin

Do Not Connect

Not Connected

ECL Output

Open Collector

RF

Digital Input

Digital Input

Analog Input

Ground

RF differential output, open-collector type

—

Ground

—

—

Divider output

VCO output (differential)

Channel selection bit 1

Channel selection bit 0

Crystal oscillator connection. See Typical

Operating Circuit.

Analog Voltage

Input

Reference input pin analog (can be used as

input or as crystal oscillator driver). See

Typical Operating Circuit.

Supply Pin

Power-supply pin for the synthesizer circuits.

Bypass with a 1000pF capacitor to GND as

close to the part as possible.

Supply Pin

Analog Output

Digital Input

Digital Input

Not Connected

Supply Pin

Power-supply pin for the digital circuits.

Bypass with a 100pF capacitor to GND as

close to the part as possible.

Buffered clock analog output pin

Channel selection bit 2

Division ratio selections (division ratio = 62

when DIV63 = high; division

ratio = 63 when DIV63 = low).

—

Power-supply pin for charge pump circuits.

Bypass with a 100pF capacitor to GND as

close to the part as possible.

Supply Pin

Power-supply pin. Bypass with a 100pF

capacitor to GND as close to the part as

possible.

Analog Output Charge pump output pin

Do Not Connect —

Electrical

Ground

Back side of package is connected to

ground.

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