Electrical characteristics (continued) – Rainbow Electronics MAX3746 User Manual
Page 3
MAX3746
Low-Power, 622Mbps to 3.2Gbps
Limiting Amplifier
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +2.97V to +3.63V, CML output load is 50Ω to V
CC
, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
=
3.3V, T
A
= +25°C, unless otherwise specified. The data input transition time is controlled by 4th-order Bessel filter with f
-3dB
= 0.75 x
2.667GHz for all data rates of 2.667Gbps and below, and with f
-3dB
= 0.75 x 3.2GHz for a data rate of 3.2Gbps.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Random Jitter
Input = 4mV
P-P
(Notes 2, 4)
3
7
ps
RMS
Data Output Transition
Time
4mV
P-P
<
V
INP-P
<
1200mV
P-P
,
20% to 80% (Note 2)
70
114
ps
Input-ReferredNoise
(Note 2)
150
µV
RMS
Low-Frequency Cutoff
20
kHz
Includes the CML output current; OUTPOL
connected to V
CC
or GND
35
41.5
Includes the CML output current; OUTPOL
open or connected to 30k
Ω
to GND
29
35
Power-Supply Current
I
CC
Excludes the CML output current and the
CM_RSSI circuitry; OUTPOL connected to
V
CC
or GND (Note 5)
20
25
mA
Power-Supply Noise Rejection
PSNR
f < 2MHz
40
dB
LOSS-OF-SIGNAL (Notes 2, 6)
LOS Hysteresis
10 log (V
DEASSERT
/ V
ASSERT
)
1.25
2.2
dB
LOS Assert/Deassert Time
(Note 7)
2.3
50
µs
Low LOS Assert Level
R
TH
= 2k
Ω
2.6
4
6.4
mV
P-P
Low LOS Deassert Level
R
TH
= 2k
Ω
6
9.6
mV
P-P
Medium LOS Assert Level
R
TH
= 14k
Ω
19.6
28
31.8
mV
P-P
Medium LOS Deassert Level
R
TH
= 14k
Ω
42
54.7
mV
P-P
High LOS Assert Level
R
TH
= 25k
Ω
36
50
54.3
mV
P-P
High LOS Deassert Level
R
TH
= 25k
Ω
84
114
mV
P-P
CM_RSSI SPECIFICATION
RSSI Current Gain
A
RSSI
I
RSSI
/ I
CM_RSSI
(Note 8)
0.031
V
CM
to I
RSSI
3dB Bandwidth
40
kHz
Input-Referred RSSI Current
Stability
I
RSSI
A
RSSI
Input < 6.6mA, 0V
≤
V
RSSI
≤
2.5V (Note 9)
-40
+36
µA
RSSI Output Compliance Voltage
V
RSSI
0
2.0
V
TTL/CMOS I/O
LOS Output High Voltage
V
OH
R
LOS
= 4.7k
Ω
to 10k
Ω
to Vcc_host (3V)
2.4
V
LOS Output Low Voltage
V
OL
R
LOS
= 4.7k
Ω
to 10k
Ω
to Vcc_host (3.6V)
0.4
V