SMSC LAN91C111 SYM, MIN, TYP, MAX, UNIT, LIMIT, PARAMETER, CONDITIONS, Figure 14.11 Transmit Timing, Table 14.1 Transmit Timing Characteristics

10/100 Non-PCI Ethernet Single Chip MAC + PHY

Datasheet

AC TEST TIMING CONDITIONS

Unless otherwise noted, all test conditions are as follows:

1.VDD = 3.3V +/-5%

2.RBIAS = 11K +/- 1%, no load

3.Measurement Points:

4.TPO±, TPI±: 0.0 V During Data, ±0.3V at start/end of packet

5.All other inputs and outputs: 1.4 Volts

Table 14.1 Transmit Timing Characteristics

SYM	PARAMETER	LIMIT			UNIT	CONDITIONS
		MIN	TYP	MAX
t30	Transmit Propagation Delay	60		140	nS	100Mbps
				600	nS	10Mbps
t31	Transmit Output Jitter			±0.7	nS pk-pk	100Mbps
				±5.5	nS pk-pk	10Mbps
t32	Transmit SOI Pulse Width to	250			nS	10Mbps
	0.3V
t33	Transmit SOI Pulse Width to			4500	nS	10Mbps
	40mV
t34	LEDn Delay Time			25	mS
t35	LEDn Pulse Width	80		105	mS

100Mbps

	t	30		t31
TPO±	IDLE	IDLE	/J/K/	DATA	/T/R/	IDLE
FXO±

10Mbps				t33
	t31
t30				t32
TPO±	PREAMBLE PREAMBLE	DATA	DATA	SOI
t34	t35

LEDn

TXENBit is Set

Figure 14.11 Transmit Timing

Revision 1.91 (08-18-08) 118 SMSC LAN91C111 REV C

DATASHEET