Rainbow Electronics MAX3798 - Manual (Page 3)

MAX3798
1.0625Gbps to 10.32Gbps, Integrated, Low-
Power SFP+ Limiting Amplifier and VCSEL Driver
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V CC = 2.85V to 3.63V, T A = -40°C to +85°C, CML receiver output load is AC-coupled to differential 100 Ω, C
AZ = 1nF, transmitter out-
put load is AC-coupled to differential 100 Ω (see Figure 1), typical values are at +25°C, V
CC = 3.3V, I BIAS = 6mA, I MOD = 6mA, unless
otherwise specified. Registers are set to default values unless otherwise noted, and the 3-wire interface is static during measure-
ments. For testing, the MODE_SEL bit was used and the MSEL pin was left open.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DUT is powered on, 1GHz < f 5GHz 9
Output Return Loss SCC22
DUT is powered on, 1GHz < f 16GHz 7
dB
CML Differential Output Voltage
High
5mV
P-P
V
IN
1200mV
P-P
, SET_CML[162] 595 800 1005 mV
P-P
CML Differential Output Voltage
Medium
10mV P-P V IN 1200mV P-P , SET_CML[80] 300 400 515 mV P-P
Differential Output Signal When
Disabled
Outputs AC-coupled, V INMAX applied to
input V DIFF_ROUT = 800mV P-P at 8.5Gbps
(Notes 2, 3)
6 15 mV P-P
10mV P-P V IN 1200mV P-P ,
MODE_SEL = 1, V DIFF_ROUT = 400mV P-P
26 35
5mV P-P
V
IN
1200mV
P-P ,
MODE_SEL = 0, SLEW_RATE = 1,
V
DIFF_ROUT = 800mV P-P
28 50
Data Output Transition Time
(20% to 80%)
(Notes 2, 3, 4)
t R /t F
5mV P-P V IN 1200mV P-P ,
MODE_SEL = 0, SLEW_RATE = 0,
V
DIFF_ROUT = 800mV P-P
45
ps
Rx TRANSFER CHARACTERISTICS
60mV P-P
V
IN
400mV
P-P at 10.32Gbps,
MODE_SEL = 1, V DIFF_ROUT = 400mV P-P
4 12
10mV P-P
V
IN
1200mV
P-P at 8.5Gbps,
MODE _SEL = 1, V DIFF_ROUT = 400mV P-P
4 12
10mV P-P V IN 1200mV P-P at 4.25Gbps,
MODE _SEL = 1, V DIFF_ROUT = 400mV P-P
5
10mV
P-P
V
IN
1200mV
P-P
at 8.5Gbps,
MODE _SEL = 0, V DIFF_ROUT = 400mV P-P
5 10
5mV P-P
V
IN
1200mV
P-P at 4.25Gbps,
MODE _SEL = 0, SLEW_RATE = 1,
V
DIFF_ROUT = 800mV P-P
6 20
Deterministic Jitter
(Notes 2, 3, 5)
DJ
5mV P-P
V
IN
1200mV
P-P at 4.25Gbps,
MODE _SEL = 0, SLEW_RATE = 0,
V
DIFF_ROUT = 800mV P-P
7
ps P-P
Input = 60mV P-P at 4.25Gbps ,
MODE_SEL = 0, V DIFF_ROUT = 800mV P-P
0.36 0.51
Random Jitter (Notes 2, 3) RJ
Input = 60mV P-P at 8.5Gbps ,
MODE _SEL = 1, V DIFF_ROUT = 400mV P-P
0.32 0.48
ps RMS
C AZ = 0.1μF 2
Low-Frequency Cutoff
C AZ = open 500
kHz
Rx LOS SPECIFICATIONS
LOS Assert Sensitivity Range 14 77 mV P-P
LOS Hysteresis 10 x log (V DEASSERT /V ASSERT ) (Note 6) 1.25 2.1 dB