Datasheet

MAX3761/MAX3762
Low-Power, 622Mbps Limiting Amplifiers
with Chatter-Free Power Detect for LANs
4 _______________________________________________________________________________________
____________________________Typical Operating Characteristics (continued)
(MAX3761/MAX3762 EV kit, V
CC
= +5.0V, PECL outputs terminated with 50Ω to V
CC
- 2V, input is a 1-0 pattern, 622Mbps, T
A
= +25°C,
unless otherwise noted.)
2.00
1.20
-40 -20 800204060
RSSI vs. TEMPERATURE
(622Mbps 2
23
- 1 PRBS)
1.36
1.84
MAX3761/62-04
AMBIENT TEMPERATURE (°C)
RSSI VOLTAGE (V)
1.68
1.52
1.28
1.44
1.92
1.76
1.60
V
IN
= 50mVp-p
V
IN
= 16mVp-p
V
IN
= 4mVp-p
2.50
2.75
3.00
3.25
3.50
3.75
4.00
-40
-20
0 20406080100
LOS HYSTERESIS vs. TEMPERATURE
(622Mbps 2
23
- 1 PRBS PATTERN)
MAX3761/62-05
AMBIENT TEMPERATURE (°C)
HYSTERESIS (dB)
ASSERT LEVEL SET
TO APPROXIMATELY
2mVp-p
ASSERT LEVEL SET
TO APPROXIMATELY 30mVp-p
3
4
5
6
7
8
-40 0-20 20 40 60
80
100
LOS HYSTERESIS vs. TEMPERATURE
(622Mbps 1-0 PATTERN)
MAX3761/62-06
AMBIENT TEMPERATURE (°C)
HYSTERESIS (dB)
ASSERT LEVEL SET
TO APPROXIMATELY
2mVp-p
ASSERT LEVEL SET
TO APPROXIMATELY
30mVp-p
-0.8
-1.8
-40 -20
0
20 40 60 80
DATA OUTPUT LEVELS
(REFERENCE TO V
CC
)
-1.6
-1.0
MAX3761/62-07
AMBIENT TEMPERATURE (°C)
VOLTAGE (V)
-1.2
-1.4
VOH
VOL
1m 1010.10.01
INPUT SIGNAL (Vp-p)
DIFFERENTIAL OUTPUT (mV)
1400
1280
1160
0.1m
1040
800
680
560
440
200
320
920
DIFFERENTIAL OUTPUT
vs. INPUT AMPLITUDE
MAX3761/62-08
0.01 0.1 1 100.001
INPUT SIGNAL (Vp-p)
PULSE-WIDTH DISTORTION (PS)
50
40
20
10
0
30
PULSE-WIDTH DISTORTION
(622Mbps DATA RATE)
MAX3761/62-09
-40°C
+85°C
100mV/
div
5μs/div
LOS OPERATION
WITH SQUELCHING
MAX3761/62-10
DATA IN
LOS+
OUT+
100mV/
div
5μs/div
DATA IN
LOS+
OUT+
LOS OPERATION
WITHOUT SQUELCHING
MAX3761/62-11
50mV/
div
500ps/div
DATA OUTPUT SINGLE-ENDED
(2
23
- 1 PRBS PATTERN)
MAX3761/62-12
INPUT = 4mVp-p
T
A
= +85°C