78Q2133 Просмотр технического описания (PDF) - Unspecified

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78Q2133

MicroPHY™ 10/100BASE-TX Transceiver

Unspecified 

78Q2123/78Q2133 MicroPHY™

10/100BASE-TX Transceiver

MDI (MEDIA DEPENDENT INTERFACE)

SIGNAL PIN TYPE DESCRIPTION

TXOP,

TXON

RXIP,

RXIN

30,31 A

28,27 A

TRANSMIT OUTPUT POSITIVE/NEGATIVE: Transmitter differential outputs for

both 10base-T and 100base-TX.

RECEIVE INPUT POSITIVE/NEGATIVE: Receiver differential inputs for both

10BASE-T and 100BASE-TX.

OSCILLATOR/CLOCK

SIGNAL PIN TYPE DESCRIPTION

XTLP

XTLN

24 A

25 A

CRYSTAL INPUT: Should be connected to a 25 MHz crystal. If an externally

generated TTL compatibility clock signal is used, that signal is applied here.

CRYSTAL OUTPUT: Should be connected to a 25 MHz crystal. When an external

clock source is being used, this pin must be grounded.

POWER SUPPLY AND GROUND

SIGNAL PIN TYPE DESCRIPTION

PWR

GND

9, 26 S

10, 29 G

+3.3VDC SUPPLY

GROUND

Page: 9 of 42

© 2009 Teridian Semiconductor Corporation

Rev 1.5

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