Typical Operating Characteristics (continued)
(V
CC
= +3.3V, T
A
= +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 (mV
P-P
)
BIT-ERROR RATIO (10
-12
)
986 72 3 4 51
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 (mV
P-P
)
DETERMINISTIC JITTER (ps
P-P
)
100010010
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
V
IN
= 500mV
P-P
V
IN
= 5mV
P-P
LOS ASSERT/DEASSERT TIMES vs. INPUT
AMPLITUDE (LOW R
TH1
/R
TH2
SETTINGS)
MAX3747A/MAX3747B toc13
INPUT AMPLITUDE (mV
P-P
)
LOS ASSERT/DEASSERT TIME (µs)
1200200 600 800 1000400
5
10
15
20
25
30
35
40
0
0 1400
MAX3747B
LOS ASSERT
LOS DEASSERT
LOS ASSERT/DEASSERT TIMES vs. INPUT
AMPLITUDE (HIGH R
TH1
/R
TH2
SETTINGS)
MAX3747A/MAX3747B toc14
INPUT AMPLITUDE (mV
P-P
)
LOS ASSERT/DEASSERT TIME (µs)
1200200 600 800 1000400
5
10
15
20
25
30
35
40
0
0 1400
MAX3747B
LOS ASSERT
LOS DEASSERT
ASSERT/DEASSERT vs. V
TH
MAX3747A/MAX3747B toc15
V
TH
(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
V
TH
(V) = VOLTAGE AT PIN 5 (V)
WITH RESPECT TO V
CC
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)
V
TH
= -1.1V, FREQ = 2.7Gbps
PATTERN = PRBS 2
23
- 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