Electrical characteristics (continued) – Rainbow Electronics MAX3799 User Manual
Page 3
MAX3799
1Gbps to 14Gbps, SFP+ Multirate 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 RATE_SEL bit was used and the RSEL pin was left open.)
PARAMETER SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DUT is powered on, f
5GHz
11
Output Return Loss
SDD22
DUT is powered on, f
16GHz
5
dB
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
CML Differential Output DAC
Limit
SET_CML[7:0]
215
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
,
RATE_SEL = 1, V
DIFF_ROUT
= 400mV
P-P
26
35
Data Output Transition Time
(20% to 80%)
(Notes 2, 3, 4)
t
R
/t
F
5mV
P-P
V
IN
1200mV
P-P
,
RATE_SEL = 0, V
DIFF_ROUT
= 800mV
P-P
60
100
ps
Rx TRANSFER CHARACTERISTICS
60mV
P-P
V
IN
400mV
P-P
at 10.32Gbps,
RATE_SEL = 1, V
DIFF_ROUT
= 400mV
P-P
4
12
10mV
P-P
V
IN
1200mV
P-P
at 8.5Gbps,
RATE _SEL = 1, V
DIFF_ROUT
= 400mV
P-P
4
12
Deterministic Jitter
(Notes 2, 3, 5)
DJ
5mV
P-P
V
IN
1200mV
P-P
at 1.25Gbps,
RATE _SEL = 0, V
DIFF_ROUT
= 800mV
P-P
20
ps
P-P
Input = 60mV
P-P
at 1.25Gbps
,
RATE_SEL = 0, V
DIFF_ROUT
= 800mV
P-P
1.8
2.5
Random Jitter (Notes 2, 3)
RJ
Input = 60mV
P-P
at 8.5Gbps
,
RATE _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
LOS Assert/Deassert Time
(Note 7)
2.3
80
μs
Low Assert Level
SET_LOS[7] (Notes 2, 6)
8
11
14
mV
P-P
Low Deassert Level
SET_LOS[7] (Notes 2, 6)
14
18
21
mV
P-P
Medium Assert Level
SET_LOS[32] (Notes 2, 6)
39
48
58
mV
P-P
Medium Deassert Level
SET_LOS[32] (Notes 2, 6)
65
81
95
mV
P-P
High Assert Level
SET_LOS[63] (Notes 2, 6)
77
94
112
mV
P-P
High Deassert Level
SET_LOS[63] (Notes 2, 6)
127
158
182
mV
P-P