78Q2120C09-DB Maxim Integrated Products, 78Q2120C09-DB Datasheet - Page 26

• Manufacturer Part Number: 78Q2120C09-DB
• Description: BOARD DEMO 787Q2120C
• Manufacturer: Maxim Integrated Products

Specifications of 78Q2120C09-DB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

100BASE-TX System Timing
System timing requirements for 100BASE-TX operation are listed in Table 24-2 of Clause 24 of IEEE 802.3.
10BASE-T System Timing
* Guarantee by design. The specifications in the following table are included for information only.
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PARAMETER
TX_EN Sampled to first bit of “J” on MDI
output
First bit of “J” on MDI input to CRS assert
First bit of “T” on MDI input to CRS
de-assert
First bit of “J” on MDI input to COL assert
First bit of “T” on MDI input to COL
de-assert
TX_EN Sampled to CRS assert
TX_EN sampled to CRS de-assert
PARAMETER
TX_EN (MII) to TD Delay
RD to RXD at (MII) Delay
Collision delay
SQE test wait
SQE test duration
Jabber on-time*
Jabber off-time*
©
2009 Teridian Semiconductor Corporation
RPTR = low
RPTR = low
CONDITION
CONDITION
MIN
250
20
NOM
12
16
23
20
24
6
6
NOM
1
1
10/100BASE-TX
MAX
150
750
6
6
9
Transceiver
78Q2120C
UNIT
BT
BT
BT
BT
BT
BT
BT
UNIT
ms
ms
BT
BT
BT
µs
µs
Rev 1.3