VSC8601XKN Vitesse Semiconductor Corp, VSC8601XKN Datasheet - Page 76

• Manufacturer Part Number: VSC8601XKN
• Description: IC PHY 10/100/1000 64-EP-LQFP
• Manufacturer: Vitesse Semiconductor Corp
• Type: PHY Transceiverr

Specifications of VSC8601XKN

• Number Of Drivers/receivers: 1/1
• Protocol: Gigabit Ethernet
• Voltage - Supply: 2.5V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP Exposed Pad, 64-eLQFP, 64-HLQFP
• Case: TQFP
• Dc: 06+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 907-1028

5.3.1
Table 68.
Table 69.
5.3.2
Table 70.
Revision 4.1
September 2009
Reference Clock Input
The following table lists the specifications for the reference clock input frequency
including various frequencies, duty cycle, and accuracy.
AC Characteristics for REFCLK Input
When using the 25 MHz crystal clock input option, the additional specifications in the
following table are required.
AC Characteristics for REFCLK Input with 25 MHz Clock Input
Clock Output
The specifications in the following table show the AC characteristics for the clock output
of the VSC8601 device.
AC Characteristics for the CLKOUT Pin
Parameter
Frequency with 25 MHz input
Frequency with 125 MHz input
Frequency accuracy
Duty cycle
Rise time with 25 MHz input (20% to 80%)
Rise time with 125 MHz input (20% to
80%)
Parameter
Crystal parallel load capacitance
Crystal equivalent series resistance
Parameter
CLKOUT frequency
CLKOUT cycle time
Frequency stability
Duty cycle
Clock rise and fall
times (20% to 80%)
Total jitter
f
t
Symbol
STABILITY
R
%
t
J
f
and t
CLK
CYC
DUTY
CLK
F
Minimum
44
Symbol
Minimum
f
%
f
CLK125
t
CLK25
f
t
R125
Typical
TOL
DUTY
R25
125.00
18
217
8.0
50
Minimum
Maximum
Typical
40
600
10
50
56
1
Typical Maximum
Electrical Specifications
125
Maximum
25
Unit Condition
ppm
MHz
ns
%
ns
ps
VSC8601 Datasheet
20
30
125 MHz output
clock
125 MHz output
clock
Measured
peak-to-peak,
time interval
error
50
60
4
1
Unit
pF
Ω
Page 76
Unit
ppm
MHz
MHz
%
ns
ns