LAN9313I-NZW SMSC, LAN9313I-NZW Datasheet - Page 393

• Manufacturer Part Number: LAN9313I-NZW
• Description: Ethernet ICs Three Port 10/100 Ethernet Switch
• Manufacturer: SMSC
• Type: Three Port Managed Ethernet Switchr

Specifications of LAN9313I-NZW

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 Mbps, 100 Mbps
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Supply Current (max): 155 mA, 270 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
SMSC LAN9313/LAN9313i
14.6
Crystal Cut
Crystal Oscillation Mode
Crystal Calibration Mode
Frequency
Frequency Tolerance @ 25
Frequency Stability Over Temp
Frequency Deviation Over Time
Total Allowable PPM Budget
Shunt Capacitance
Load Capacitance
Drive Level
Equivalent Series Resistance
Operating Temperature Range
n/a XI Pin Capacitance
n/a XO Pin Capacitance
PARAMETER
The LAN9313/LAN9313i can accept either a 25MHz crystal (preferred) or a 25MHz single-ended clock
oscillator (+/- 50ppm) input. If the single-ended clock oscillator method is implemented, XO should be
left unconnected and XI should be driven with a nominal 0-3.3V clock signal. The input clock duty cycle
is 40% minimum, 50% typical and 60% maximum.
It is recommended that a crystal utilizing matching parallel load capacitors be used for the crystal
input/output signals (XI/XO). See
Note 14.12 The maximum allowable values for Frequency Tolerance and Frequency Stability are
Note 14.13 Frequency Deviation Over Time is also referred to as Aging.
Note 14.14 The total deviation for the Transmitter Clock Frequency is specified by IEEE 802.3 as
Note 14.15 This number includes the pad, the bond wire and the lead frame. PCB capacitance is not
Note 14.16 0
Note 14.17 +70
Clock Circuit
application dependant. Since any particular application must meet the IEEE +/-50 PPM
Total PPM Budget, the combination of these two values must be approximately +/-45 PPM
(allowing for aging).
+/- 50 PPM.
included in this value. The XO/XI pin and PCB capacitance values are required to
accurately calculate the value of the two external load capacitors. These two external load
capacitors determine the accuracy of the 25.000 MHz frequency.
o
C for commercial version (LAN9313), -40
o
Table 14.10 LAN9313/LAN9313i Crystal Specifications
C
o
C for commercial version (LAN9313), +85
SYMBOL
F
F
F
F
P
C
temp
C
R
fund
age
tol
W
O
L
1
Table 14.10
DATASHEET
Note 14.16
MIN
300
Parallel Resonant Mode
-
-
-
-
-
-
-
-
-
-
393
Fundamental Mode
for crystal specifications.
AT, typ
+/-3 to 5
25.000
20 typ
NOM
7 typ
3 typ
3 typ
o
-
-
-
-
-
-
C for industrial version (LAN9313I)
o
C for industrial version (LAN9313I)
Note 14.17
+/-50
+/-50
+/-50
MAX
50
-
-
-
-
-
-
-
UNITS
PPM
PPM
PPM
PPM
Ohm
MHz
uW
Revision 1.7 (06-29-10)
pF
pF
o
pF
pF
C
Note 14.12
Note 14.12
Note 14.13
Note 14.14
Note 14.15
Note 14.15
NOTES