Datasheet

REV. A
AD8018
–7–
TRANSFORMER TURNS RATIO
P
LINE
– dBm
3.0
16
10
11
12
13
14
15
3.2 4.0 4.2 4.4 4.6 4.83.4
3.6
3.8
V
S
= 5.25
V
S
= 4.75
V
S
= 5.00
TPC 19. Line Power vs. Turns Ratio; MTPR = –65 dBc,
f = 43 kHz
TRANSFORMER TURNS RATIO – N
MTPR – dBc
3 4
–80
–70
–60
–50
–40
–30
5
–20
P = 13dBm
P = 13.5dBm
P = 14dBm
P = 12.5dBm
P = 12dBm
V
S
= 5V
R
LINE
= 100⍀
f = 93kHz
TPC 20. MTPR vs. Turns Ratio
TRANSFORMER TURNS RATIO – N
SFDR – dBc
3
–90
4
–80
–70
–60
–50
–40
–30
5
P = 12dBm
P = 12.5dBm
P = 13dBm
P = 13.5dBm
P = 14dBm
V
S
= 5V
R
LINE
= 100⍀
f = 361kHz
TPC 21. Out-of-Band SFDR vs. Turns Ratio for Various
Line Power
TRANSFORMER TURNS RATIO
P
LINE
– dBm
3.0
16
6
8
10
14
3.2 4.0 4.2 4.4 4.63.4 3.6 3.8
18
12
V
S
= 4.75
V
S
= 8.00
V
S
= 5.00
V
S
= 3.3
V
S
= 4.50
4.8
TPC 22. Line Power vs. Turns Ratio; –75 dBc Out-of-Band
SFDR, f = 361 kHz
FREQUENCY – Hz
1k 10k 100k 1M 10M 100M 1G
0.01
0.1
1
10
100
1k
10k
100k
1M
10M
TRANSIMPEDANCE – ⍀
–150
–100
–50
0
50
200
100
150
PHASE – De
g
rees
TRANSIMPEDANCE
PHASE
–200
TPC 23. Open Loop Transimpedance and Phase
POWER-DOWN VOLTAGE – Volts
TOTAL SUPPLY CURRENT – mA
0.86
16
6
8
10
14
DECREASING
18
12
20
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