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Zarlink Semiconductor - PHY/PMD High Speed Copper Media Transceiver

Numéro de référence NWK914D
Description PHY/PMD High Speed Copper Media Transceiver
Fabricant Zarlink Semiconductor 
Logo Zarlink Semiconductor 





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NWK914D fiche technique
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NWK914D
NWK914D
PHY/PMD High Speed Copper Media Transceiver
Preliminary Information
DS4829 - 1.1 December 1997
The NWK914D is a Physical Layer device designed for
use in 100BASE-TX applications. The NWK914D has
integrated the 100mb/s transceiver, clock and data recovery
and NRZI conversion circuitry. It is designed for use in cost
effective NIC adapter cards and 100BASE-TX repeater and
switch applications.
The device connects through a 5 bit symbol interface
directly with any MAC controller that includes the PCS layer,
resulting in a simple and cost effective solution. It will also
interface with a PCS device such as the NWK935 to form a
complete 100BASE-TX Physical Layer for connection to the
IEEE 802.3 standard MII interface.
FEATURES
s Compatible with IEEE-802.3 Standards
s Operates over 100 Meters of STP and Category 5
UTP cable
s Five Bit TTL Level Symbol Interface
s Integrated Clock and Data Recovery
s Supports Full-duplex Operation
s Integral 10 Mb/s Buffer for Dual 10 Mb/s & 100 Mb/s
Applications
s Adaptive Equalization
s 25MHz to 125MHz Transmit Clock Multiplier
s Programmable TX Output Current
s Base Line Wander Correction
TTLGND 1
N/C 2
N/C 3
RXC 4
SDT 5
RDLVCC 6
N/C 7
N/C 8
RXPLLGND 9
LFRB 10
LFRA 11
RXPLLV CC 12
RXVCC 13
39 TTLGND
38 TEST
37 TESTIP
36 N10/100
35 LBEN
34 TDLVCC
33 TXOE
32 TXPLLVCC
31 LFTA
30 LFTB
29 TXPLLGND
28 BGAPGND
27 SUBGND
GP52
Fig.1 Pin connections - top view
s Single +5V supply
s 52 Pin PQFP package
ORDERING INFORMATION
NWK914D/CG/GP1N
MAC or
Repeater
Controller
IC
MII
Interface
NWK935
100 PCS
Symbol
Interface
NWK914D
Isolation
Magnetics
RJ-45
Fig.2 Simplified system diagram
1

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