Philips Semiconductors

Product specification

NE83C92

Low-power coaxial Ethernet transceiver

1995 May 1

4

ELECTRICAL CHARACTERISTICS

LIMITS

SYMBOL

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Under voltage lockout. Transceiver disabled for

–7.5

V

Supply current idle

–15

–20

mA

Supply current transmitting (without collision)

Without external

pull-down resistors

–70

–85

mA

Receive input bias current

–2

+25

µA

Cable sense input bias current

+1

+3

µA

HBE input HIGH voltage

V

HBE input LOW voltage

V

HBE input HIGH current

+10

µA

HBE input LOW current

–30

µA

–37

–45

mA

±28

mA

Transmit current

–250

+250

µA

–3.7

V

Measured by applying

DC voltage at RXI

(CDS = 0V)

–1450

–1530

–1580

mV

AUI disable voltage at RXI

Measured as DC

voltage at RXI

–3.5

V

Differential output voltage – non idle at RX+ and

CD

±600

±1100

mV

Differential output voltage imbalance – idle at

RX

±40

mV

Output common mode voltage at RX

± and CD±

RXI = 0V

–4.0

–5.5

–7.0

V

Receiver squelch threshold

(CDS = 0V)

–150

–250

–350

mV

Transmitter squelch threshold

–175

–225

–275

mV

Shunt resistance at RXI non–transmitting

100

k

Ω

1

2

pF

Shunt resistance at TXO transmitting

7.5

10

k

Ω

Differential impedance at RX

± and CD± with no

coaxial cable connected

6

k

Ω

Differential impedance at TX

±

20

k

Ω

NOTES:

1. Currents flowing into device pins are positive. All voltages are referenced to ground unless otherwise specified. For ease of interpretation,

the parameter limit that appears in the MAX column is the largest value of the parameter, irrespective of sign. Similarly, the value in the MIN

column is the smallest value of the parameter, irrespective of sign.

6. Measured on secondary side of isolation transformer. The transformer has a 1:1 turns ratio with an inductance between 30 and 100

µH at

5MHz.

7. Measured as the voltage difference between the RX pins or the CD pins with the transformer removed.

8. Not 100% tested in production.