AD8018 datasheet(7/19 Pages) AD

7 / 19 page

REV. 0

AD8018

–7–

TRANSFORMER TURNS RATIO

3.0

3.2

4.0

4.2

4.4

4.6

4.8

3.4

3.6

3.8

VS = 5.25

VS = 4.75

VS = 5.00

TPC 19. Line Power vs. Turns Ratio; MTPR = –65 dBc,

f = 43 kHz

TRANSFORMER TURNS RATIO – N

–80

–70

–60

–50

–40

–30

–20

P = 13dBm

P = 13.5dBm

P = 14dBm

P = 12.5dBm

P = 12dBm

VS = 5V

RLINE = 100

f = 93kHz

TPC 20. MTPR vs. Turns Ratio

TRANSFORMER TURNS RATIO – N

–90

–80

–70

–60

–50

–40

–30

P = 12dBm

P = 12.5dBm

P = 13dBm

P = 13.5dBm

P = 14dBm

VS = 5V

RLINE = 100

f = 361kHz

TPC 21. Out-of-Band SFDR vs. Turns Ratio for Various

Line Power

TRANSFORMER TURNS RATIO

3.0

3.2

4.0

4.2

4.4

4.6

3.4

3.6

3.8

VS = 4.75

VS = 8.00

VS = 5.00

VS = 3.33

VS = 4.50

4.8

TPC 22. Line Power vs. Turns Ratio; –75 dBc Out-of-Band

SFDR, f = 361 kHz

FREQUENCY – Hz

10k

100k

10M

100M

0.01

0.1

100

10k

100k

10M

–150

–100

–50

200

100

150

TRANSIMPEDANCE

PHASE

–200

TPC 23. Open Loop Transimpedance and Phase

POWER-DOWN VOLTAGE – Volts

0.86

DECREASING

0.88

0.90

0.92

0.94

0.96

0.98

1.00

1.02

INCREASING

LOGIC 1 TO 0

LOGIC 0 TO 1

TPC 24. Power-Up/-Down Threshold Voltage

AD8018 Datasheet(PDF) 7 Page - Analog Devices

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