NE83C92 데이터 시트보기 (PDF) - Philips Electronics
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NE83C92 Datasheet PDF : 9 Pages
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Philips Semiconductors
Low-power coaxial Ethernet transceiver
Product specification
NE83C92
PIN DESCRIPTIONS
PIN NO. PIN NO. SYMBOL
N PKG PLCC
DESCRIPTION
1
2
2
3
CD+
CD–
Collision Outputs. Balanced differential line driver outputs which send a 10MHz signal to the DTE in
the event of a collision, jabber interrupt or heartbeat test. External pull-down resistors are optional with
local/integrated MAU application.
3
4
RX+ Receiver Outputs. Balanced differential line driver outputs which send the received signal to the DTE.
6
12
RX– External pull-down resistors are optional with local/integrated MAU application.
7
13
TX+ Transmitter Inputs. Balanced differential line receiver inputs which accept the transmission signal from
8
14
TX– the DTE and apply it to the coaxial cable at TXO, once it meets Tx squelch threshold.
9
15
HBE
Heartbeat Enable. The heartbeat function is disabled when this pin is connected to VEE and enabled
when connected to GND or left floating.
11
18
RR+ External Resistor. A 1kΩ (1%) resistor connected between these pins establishes the signaling current
12
19
RR– at TXO.
14
26
RXI
Receiver Input. This pin is connected directly to the coaxial cable. Received signals are equalized,
amplified, and sent to the DTE through the RX± pins, once it meets Rx squelch threshold.
15
28
TXO
Transmitter Output. This pin is connected directly (Thin Ethernet) or through an external isolating
diode (Ethernet) to the coaxial cable.
16
1
CDS
Collision Detect Sense. Ground sense connection for the collision detection circuitry. This pin should
be connected directly to the coaxial cable shield for standard Ethernet operation.
10
16
17
GND Positive Supply Pin.
4
5
13
5 to 11
20 to 25
VEE
Negative Supply Pins.
NOTE:
1. The IEEE 802.3 name for CD is CI; for RX is DI; for TX is DO.
1995 May 1
2
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