DP83849CVS/NOPB National Semiconductor, DP83849CVS/NOPB Datasheet - Page 103

• Manufacturer Part Number: DP83849CVS/NOPB
• Description: IC TXRX ETHERNET PHY DUAL 80TQFP
• Manufacturer: National Semiconductor
• Type: Transceiverr

Specifications of DP83849CVS/NOPB

• Number Of Drivers/receivers: 2/2
• Protocol: Ethernet
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 80-TQFP, 80-VQFP
• Data Rate: 100Mbps
• Supply Voltage Range: 3V To 3.6V
• Logic Case Style: TQFP
• No. Of Pins: 80
• Operating Temperature Range: 0°C To +70°C
• Msl: MSL 3 - 168 Hours
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Data Rate Max: 10Mbps
• For Use With: DP83849CVS-EVK - BOARD EVALUATION DP83849CVS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *DP83849CVS; *DP83849CVS/NOPB; DP83849CVS

8.2.29 Single Clock MII (SCMII) Receive Timing
Note: Output delays assume a 25pF load.
Note: CRS is asserted and deasserted asynchronously relative to the reference clock.
Note: CRS ON delay is measured from the first bit of the JK symbol on the PMD Receive Pair to assertion of CRS_DV.
Note: CRS_OFF delay is measured from the first bit of the TR symbol on the PMD Receive Pair to deassertion of
CRS_DV.
Note: Receive Latency is measured from the first bit of the symbol pair on the PMD Receive Pair. Typical values are with
the Elasticity Buffer set to the default value (01).
T2.29.1
T2.29.2
T2.29.3
T2.29.4
T2.29.5
Parameter
PMD Input Pair
RX_DV
RXD[1:0]
RX_ER
CRS
X1
T2.29.3
X1 Clock Period
RXD[3:0], RX_DV and RX_ER
output delay
CRS ON delay (100Mb)
CRS OFF delay (100Mb)
RXD[1:0] and RX_ER latency
(100Mb)
IDLE
Description
(J/K)
Data
T2.29.5
25MHz Reference Clock
From X1 rising
100BASE-TX mode
100BASE-TX mode
100BASE-TX mode
103
T2.29.2
Notes
T2.29.1
(TR)
T2.29.4
Data
Min
2
Typ
40
19
26
56
T2.29.2
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Max
18
Units
bits
bits
bits
ns
ns