ThunderLAN

™ TNETE110A

PCI ETHERNET

™ CONTROLLER

SINGLE-CHIP 10 BASE-T

SPWS022A – APRIL 1996 – REVISED NOVEMBER 1996

13

POST OFFICE BOX 1443

recommended operating conditions (physical layer pins) (see Note 8)

MIN

NOM

MAX

UNIT

VDD Supply voltage

4.75

5

5.25

V

NOTE 8: Physical layer pins include VDDOSC, VDDR, VDDT, VDDVCO, ACOLN, ACOLP, ARCVN, ARCVP, AXMTP, AXMTN, FATEST, FIREF,

FRCVN, FRCVP, FXTL1, FXTL2, FXMTP, and FXMTN.

electrical characteristics over recommended ranges of supply voltage (unless otherwise noted)

(physical interface pins)

10 Base-T receiver input (FRCVP, FRCVN)

PARAMETER

JEDEC

SYMBOL

TEST CONDITIONS

MIN

MAX

UNIT

VI(DIFF) Differential input voltage†

VID

0.6

2.8

V

I(CM)

Common-mode current†

IIC

4

mA

VSQ+

Rising input pair squelch threshold (see Note 9)

VCM = VSB,

See Note 10

360

mV

VSQ–

Falling input pair squelch threshold (see Note 9)

VCM = VSB,

See Note 10

– 360

mV

† See recommended operating conditions.

NOTES:

9. VSQ is the voltage at which input is assured to be seen as data.

10. VSB is the self-bias of the input FRCVP and FRCVN.

10 Base-T transmitter drive characteristics (FXMTP, FXMTN)

PARAMETER

JEDEC

SYMBOL

TEST CONDITIONS

MIN

MAX

UNIT

VSLW

Differential voltage at specified slew rate

VOD(SLEW)

"2.2

"2.8

V

VO(CM)

Common-mode output voltage

VOC

See Figure 3d

0

4

V

VO(DIFF)

Differential output voltage

VOD

Into open circuit

5.25

V

VO(I)

Output idle differential voltage

VOD(IDLE)

"50

mV

IO(FC)

Output current, fault condition‡

IO(FC)

300

mA

‡ Specified by design

AUI receiver input (ARCVP, ARCVN, ACOLP, ACOLN)

PARAMETER

JEDEC

SYMBOL

TEST CONDITIONS

MIN

MAX

UNIT

VI(DIFF)1 Differential input voltage 1†

VID(1)

See Note 11

0

3

V

VI(DIFF)2 Differential input voltage 2†

VID(2)

See Note 12

0

100

mV

V(SQ)

Falling input pair squelch threshold

See Note 13

– 325

mV

† See recommended operating conditions.

NOTES: 11. Common-mode frequency range – 10 Hz to 40 kHz

12. Common-mode frequency range – 40 kHz to 10 MHz

13. Input bias over the common mode dc voltage range

AUI transmitter drive characteristics (AXMTP, AXMTN)

PARAMETER

JEDEC

SYMBOL

TEST CONDITIONS

MIN

MAX

UNIT

VO(DIFF)1

Differential output voltage‡

VOD(1)

See Note 14

"240 "1300

mV

VOI(DIFF)

Output idle differential voltage†

VOD(IDLE)

"50

mV

VOI(DIFF)U

Output differential undershoot‡

VOD(IDLE)U

100

mV

IO(FC)

Output current, fault condition‡

IO(FC)

150

mA

† See recommended operating conditions.

‡ Specified by design

NOTE 14: The differential voltage is measured as per Figure 3b.