300MHz to 450MHz Frequency-Programmable

ASK/FSK Transmitter

18

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MAX7057

C12

C13

C11

16

DVDD

15

GPO

14

DGND

13

DIN

12

ENABLE

11

AGND

GPO

DIN

ENABLE

SCLK

SDI

CS

C6

C7

C4

C5

C2

7

PAVDD

C9

C8

C15

C14

XTAL1

Y1

10

C10

XTAL2

9

AVDD

8

R1

L2

6

ROUT

L1

C1

5

PAOUT

C3

4

PAGND

3

SCLK

CS

1

2

SDI

Typical Application Circuit

Component List

DESIGNATION

QTY

DESCRIPTION

C1, C2

1

10pF ±5%, 50V C0G ceramic capacitors (0603)

Murata GRM1885C1H100J

C3

1

6.8pF ±5%, 50V C0G ceramic capacitor (0603)

Murata GRM1885C1H6R8J

C4, C7

2

220pF ±5%, 50V C0G ceramic capacitors (0603)

Murata GRM1885C1H221J

C5

1

680pF ±5%, 50V C0G ceramic capacitor (0603)

Murata GRM1885C1H681J

C6, C9, C12

3

10nF ±10%, 50V X7R ceramic capacitors (0603)

Murata GRM188R71H103K

C8, C13

2

100nF ±10%, 50V X7R ceramic capacitors (0603)

Murata GRM188R71H104K

C10, C11

2

100pF ±5%, 50V C0G ceramic capacitors (0603)

Murata GRM1885C1H101J

C14, C15

2

4pF ±5%, 50V C0G ceramic capacitors (0603)

Murata GRM1885C1H4R0C

L1

1

22nH ±5% wire-wound inductor (0603)

Murata LQW18AN22NJ00

L2

1

13nH ±5% wire-wound inductor (0603)

Murata LQW18AN13NJ00

R1

1

0

Ω resistor (0603)

Y1

1

16MHz crystal

Crystek 17466, Suntsu SCX284