Typical Operating Characteristics (continued)
(VCC = +3.3V, TA = +25°C, unless otherwise noted.)
MAX3747A/MAX3747B
155Mbps to 3.2Gbps, Low-Power SFP
Limiting Amplifiers
6
Maxim Integrated
BIT-ERROR RATIO vs. INPUT VOLTAGE
MAX3747A/MAX3747B
toc10
DIFFERENTIAL INPUT AMPLITUDE (mVP-P)
BIT-ERROR
RATIO
(10
-12
)
9
8
6
7
2
3
4
5
1
1000
2000
3000
4000
5000
6000
7000
8000
9000
10,000
11,000
12,000
13,000
1
010
MAXIM
MAX3747A/MAX3747B
MICREL
SY88993V
DETERMINISTIC JITTER
vs. INPUT AMPLITUDE
MAX3747A/MAX3747B
toc11
DIFFERENTIAL INPUT AMPLITUDE (mVP-P)
DETERMINISTIC
JITTER
(ps
P-P
)
1000
100
10
5
10
15
20
25
0
1
10,000
3.2Gbps, K28.5 PATTERN
0
25
20
15
10
5
30
35
40
-40
-20 -10
-30
0 10 20 30 40 50 60 70 80
DETERMINISTIC JITTER
vs. TEMPERATURE
MAX3747A/MAX3747B
toc12
TEMPERATURE (°C)
DETERMINISTIC
JITTER
(ps)
FREQ = 3.2Gbps
PATTERN = K28.5
VIN = 500mVP-P
VIN = 5mVP-P
LOS ASSERT/DEASSERT TIMES vs. INPUT
AMPLITUDE (LOW RTH1/RTH2 SETTINGS)
MAX3747A/MAX3747B
toc13
INPUT AMPLITUDE (mVP-P)
LOS
ASSERT/DEASSERT
TIME
(
s)
1200
200
600
800
1000
400
5
10
15
20
25
30
35
40
0
1400
MAX3747B
LOS ASSERT
LOS DEASSERT
LOS ASSERT/DEASSERT TIMES vs. INPUT
AMPLITUDE (HIGH RTH1/RTH2 SETTINGS)
MAX3747A/MAX3747B
toc14
INPUT AMPLITUDE (mVP-P)
LOS
ASSERT/DEASSERT
TIME
(
s)
1200
200
600
800
1000
400
5
10
15
20
25
30
35
40
0
1400
MAX3747B
LOS ASSERT
LOS DEASSERT
ASSERT/DEASSERT vs. VTH
MAX3747A/MAX3747B
toc15
VTH (V)
ASSERT/DEASSERT
(mV
P-P
)
-1.2
10
20
30
40
50
60
70
90
110
80
100
120
0
-1.4
0
-0.2
-0.4
-0.6
-0.8
-1.0
VTH (V) = VOLTAGE AT PIN 5 (V)
WITH RESPECT TO VCC
DEASSERT
ASSERT
5
20
15
10
25
30
40
35
-40
-20 -10
-30
0 10 20 30 40 50 60 70 80
ASSERT/DEASSERT vs. TEMPERATURE
MAX3747A/MAX3747B
toc16
TEMPERATURE (°C)
ASSERT/DEASSERT
(mV)
VTH = -1.1V, FREQ = 2.7Gbps
PATTERN = PRBS 223 - 1
ASSERT
DEASSERT
OUTPUT RETURN vs. FREQUENCY (SDD22)
(INPUT SIGNAL LEVEL = -60dBm)
MAX3747A/MAX3747B
toc17
FREQUENCY (MHz)
SDD22
(dB)
1000
-20
-10
0
10
20
30
-30
100
10,000
INPUT RETURN vs. FREQUENCY (SDD11)
(INPUT SIGNAL LEVEL = -60dBm)
MAX3747A/MAX3747B
toc18
FREQUENCY (MHz)
SDD11
(dB)
1000
-20
-10
0
10
20
30
-30
100
10,000