Typical operating characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX3746 User Manual
Page 4
Typical Operating Characteristics
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
MAX3746
Low-Power, 622Mbps to 3.2Gbps
Limiting Amplifier
4
_______________________________________________________________________________________
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
DISABLE Input High
V
IH
2.0
V
DISABLE Input Low
V
IL
0.8
V
DISABLE Input Current
R
LOS
= 4.7k
Ω
to 10k
Ω
to Vcc_host
10
µA
Note 1:
Between sensitivity and overload, all AC specifications are met.
Note 2:
Guaranteed by design and characterization.
Note 3:
The deterministic jitter caused by the filter is not included in the DJ generation specification.
Note 4:
Random jitter was measured without using a filter at the input.
Note 5:
The supply current measurement excludes the CML output currents by connecting the CML outputs to a separate V
CC
. (See
Figure 1.)
Note 6:
Hysteresis is calculated as 10 log (V
DEASSERT
/ V
ASSERT
). Unless otherwise specified, the data rate for all LOS detect speci-
fications varies from 622Mbps up to 3.2Gbps, and the patterns are 1010 or 2
23
- 1 PRBS.
Note 7:
The signal is switched between two amplitudes, Signal_On and Signal _Off as shown in Figure 2.
Note 8:
I
CM_RSSI
is the input common-mode current. I
RSSI
is the current at the RSSI output.
Note 9:
Stability is defined as the variation over temperature and power supply with respect to the typical gain of the part.
SUPPLY CURRENT
vs. TEMPERATURE
MAX3746 toc01
TEMPERATURE (°C)
CURRENT (mA)
90
80
60 70
-10 0 10 20 30 40 50
-30-20
10
20
30
40
50
60
70
80
90
100
0
-40
100
CML OUTPUTS INCLUDED
CML OUTPUTS NOT INCLUDED
OUTPOL = V
CC
TRANSFER FUNCTION
MAX3746 toc02
DIFFERENTIAL INPUT (mV
P-P
)
DIFFERENTIAL OUTPUT (mV
P-P
)
5
4
3
2
1
100
200
300
400
500
600
700
800
900
0
0
6
OUTPOL = V
CC
RANDOM JITTER vs. TEMPERATURE
(INPUT LEVEL 10mV
P-P
)
MAX3746 toc03
TEMPERATURE (°C)
RANDOM JITTER (ps
RMS
)
90
80
60 70
-10 0 10 20 30 40 50
-30-20
1
2
3
4
5
6
7
8
9
10
0
-40
100