FTLX1841 Product Specification – August 2008
Electrical AC Characteristics
(V
CC5
= 4.75 V to 5.25 V,
V
CC3
= 3.14 V to 3.47 V,
V
CC aps
= 1.152 V to 1.248 V,
T
C
= 0°C to 70°C)
Values
typ.
Parameter
Symbol
Unit
min.
max.
XAUI Input AC Characteristics (TXLANE[0..3])
Baud Rate
R
XAUIIN
Gbit/s
Ethernet
3.125
Baud Rate Tolerance
R
TOLXAUI
–100
100
ppm
Differential Input Impedance
Z
INXAUI
80
100
120
Ω
1)
Differential Return Loss
|S
11
|
10
dB
2)
Input Differential Skew
t
SKEWIN
75
ps
3)
Jitter Amplitude Tolerance
J
XAUITOL
0.65
UI
p-p
XAUI Output AC Characteristics (RXLANE[0..3])
Baud Rate
R
XAUIOUT
Gbit/s
Ethernet
3.125
Baud Rate Variation
R
XAUIVAR
–100
100
ppm
XAUI Eye Mask (far-end)
According to IEEE 802.3ae
Output Differential Skew
t
SKEWOUT
15
ps
Output Differential Impedance
Z
OUTXAUI
80
100
120
Ω
1)
Differential Output Return Loss
|S
22
|
10
dB
4)
Total Jitter
TJ
XAUI
0.35
UI
4)
Deterministic Jitter
DJ
XAUI
0.37
UI
Power-On Reset AC Characteristics
Power-On Reset and TX_ONOFF
According to XENPAK MSA Issue 3.0, 2002-9-18
Characteristics
MDIO I/O AC Characteristics (MDIO; MDC)
MDIO Data Hold Time
t
HOLD
10
ns
MDIO Data Setup Time
t
SU
10
ns
Delay from MDC Rising Edge to
t
DELAY
300
ns
MDIO Data Change
MDC Clock Rate
ƒ
MAX
2.5
MHz
1)
2)
3)
4)
100 MHz to 2.5 GHz.
At crossing point.
Per IEEE Std 802.3ae.
At near-end, No pre-equalization, 1 UI = 320 ps.
©
Finisar Corporation – August 2008 Rev. D1
Page 6
FINISAR [ FINISAR CORPORATION. ]
