VSC7182 Datasheet, PDF (6/18 Pages) Vitesse Semiconductor Corporation – Quad Transceiver for Gigabit Ethernet and Fibre Channel

® VITESSE
SEMICONDUCTOR CORPORATION
Quad Transceiver
for Gigabit Ethernet and Fibre Channel
Advance Product Information
VSC7182
AC Characteristics
Figure 3: Transmit Timing Waveforms
RFC
TCi
TXi[0:9]
10-Bit Data
Data Valid
T₁
T₂
Data Valid
Data Valid
+/-TXi
RFC
TCi
T_RLAT
T_TLAT
TXi0 TXi1 TXi2
Table 3: Transmitter AC Characteristics
Parameter
T₁
T₂
T_SDR,T_SDF
T_RLAT
T_TLAT
RJ
DJ
Description
Min Typ Max
TXi[0:9] setup time to the rising edge
of TCi or RFC
1.5
—
—
TXi[0:9] hold time after the rising
edge of TCi or RFC
1.0
—
—
TXi+/TXi- rise and fall time
—
—
300
Latency from rising edge of RFC to
TXi0 appearing on TX+/TX-
7bc +
0.66ns
—
7bc +
1.46ns
Latency from rising edge of TCi to
TXi0 appearing on TX+/TX-
5bc +
0.66ns
—
11bc
+
1.46ns
Transmitter Output Jitter
Random jitter (rms)
—
5
8
Serial data output deterministic jitter
(pk-pk)
—
35
80
Units
ns
ns
ps
ns
ps
ps
Conditions
Measured between the valid
data level of TXi[0:9] to the
1.4V point of TCi or RFC
20% to 80%, 75Ω load to
V_DD/2, tested on a sample
basis
bc = bit clocks
ns = nanoseconds
bc = bit clocks
ns = nanoseconds
Measured at SO+/-, 1 sigma
deviation of 50% crossing
point
IEEE 802.3Z Clause 38.68,
tested on a sample basis
Page 6
© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012
Tel: (800) VITESSE • FAX: [phone] • Email: [e-mail]
Internet: www.vitesse.com
G52307-0, Rev 2.2
10/10/00