am79761 Advanced Micro Devices, am79761 Datasheet - Page 15

• Manufacturer Part Number: am79761
• Description: Physical Layer 10-bit Transceiver For Gigabit Ethernet Gigaphy ?d
• Manufacturer: Advanced Micro Devices

AC CHARACTERISTICS (Continued)
T
T
T
T
T
R
T
Receive Data
Jitter
1
2
3
4
R
LOCK
lat
, T
Symbol
F
RXD[0:9]
RCLKN
RCLK
Data or COM_DET Valid prior
to RCLK/RCLKN rise
Data or COM_DET Valid after
RCLK or RCLKN rise
Deviation of RCLK rising edge
to RCLKN rising edge delay
from nominal.
Deviation of RCLK, RCLKN
frequency from nominal.
RXD[0:9], COM_DET, RCLK,
RCLKN rise and fall time
Latency from RX to RXD[0:9]
Data acquisition lock time @
1.25 Gbps
Receive Data Jitter Power
delay
Parameter Description
f
------------------------------- -
2 BitTime
RCLK
100KHz
1
=
=
f
---------- -
f
------------------- -
baud
10
PhaseNoise
REFCLK
Data Valid
2
T
Table 22. Receive AC Characteristics
Figure 22. Receive Timing Waveform
3
T
4
P R E L I M I N A R Y
Measured between the 1.4 V
point of RCLK or RCLKN and a
valid level of RXD[0:9]. All
outputs driving 10 pF load.
Nominal delay is 10 bit times.
Tested on sample basis
Whether or not locked to serial
data
Between V
into 10 pf load.
bc = Bit clock
ns = Nano second
8B/10B IDLE pattern.
Tested on a sample basis
dBc, RMS for 10
Ratio Tested on a sample basis
Am79761
Test Conditions
T
Data Valid
IL(MAX)
1
T
-12
4
and V
Bit Error
T
2
IH(MIN)
,
T
3
15 bc + 2 ns
Data Valid
-500
-1.0
Min
3.0
2.0
—
—
—
34 bc + 2 ns
Max
500
1.0
2.4
2.0
40
—
—
21560A-8
Unit
ns
ns
ps
ns
—
ps
%
s
15