Datasheet

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MAX3748H
Compact, Low-Power, 155Mbps to 4.25Gbps
Limiting Amplifier
Typical Operating Characteristics (continued)
(T
A
= +25°C and V
CC
= 3.3V, unless otherwise noted.)
0
200
100
400
300
600
500
700
0 400200 600 800100 500300 700 900 1000
RSSI CURRENT GAIN vs. INPUT TIA CURRENT
(MAX3744 AND MAX3748H)
MAX3748H toc17
INPUT TIA CURRENT (µA)
OUTPUT RSSI CURRENT (µA)
LOS HYSTERESIS vs. TEMPERATURE
(2.667bps, 2
10
- 1 PRBS)
MAX3748H toc16
TEMPERATURE (°C)
10LOG (DEASSERT/ASSERT) (dB)
9080706050403020100-10-20-30
1
2
3
4
5
6
0
-40 100
R
TH
= 20kΩ
R
TH
= 80Ω
R
TH
= 280Ω
DETERMINISTIC JITTER vs. INPUT OFFSET VOLTAGE
(2.667Gbps, K28.5)
MAX3748H toc15
INPUT OFFSET VOLTAGE (mV
P-P
)
DETERMINISTIC JITTER (ps
P-P
)
420-2-4
2
4
6
8
10
12
14
16
18
20
0
-6 6
OUTPUT RETURN GAIN vs. FREQUENCY (SDD22)
(INPUT SIGNAL LEVEL = -40dBm)
MAX3748H toc14
FREQUENCY (Hz)
GAIN (dB)
1G
-30
-20
-10
0
10
20
30
-40
100M 10G
INPUT RETURN GAIN vs. FREQUENCY (SDD11)
(INPUT SIGNAL LEVEL = -40dBm)
MAX3748H toc13
FREQUENCY (Hz)
GAIN (dB)
1G
-30
-20
-10
0
10
20
30
-40
100M 10G
OUTPUT
DISABLED
ASSERT/DEASSERT LEVELS vs. R
TH
MAX3748H toc12
R
TH
(Ω)
ASSERT/DEASSERT (mV
P-P
)
10k1k100
10
10 100k
100
1
DEASSERT
ASSERT
dB
OUTPUT EYE DIAGRAM AT +100C
(MINIMUM INPUT)
MAX3748H toc11
50ps/div
100mV/div
3.2Gbps, 2
23
- 1 PRBS, 5mV
P-P
OUTPUT EYE DIAGRAM WITH MAXIMUM INPUT
(DATA RATE OF 2.6667Gbps)
MAX3748H toc10
50ps/div
100mV/div
2.7Gbps, 2
23
- 1 PRBS, 1200mV
P-P