Datenblatt-pdf.com


NWK914GP1N Schematic ( PDF Datasheet ) - Mitel Networks

Teilenummer NWK914GP1N
Beschreibung PHY/PMD High Speed Copper Media Transceiver
Hersteller Mitel Networks
Logo Mitel Networks Logo 




Gesamt 9 Seiten
NWK914GP1N Datasheet, Funktion
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






NWK914GP1N Datasheet, Funktion
NWK914D
Pin Name
Pin Type
SYMBOL Interface
RXC
TTLOP
SDT
TTLOP
TDAT4
TDAT3
TDAT2
TDAT1
TDAT0
TXC
TTLIP
TTLIP
TTLIP
TTLIP
TTLIP
TTLOP
RDAT0
RDAT1
RDAT2
RDAT3
RDAT4
TTLOP
TTLOP
TTLOP
TTLOP
TTLOP
Network Interface
RXIP
RXIN
TXON
TXOP
analog input
analog input
analog output
analog output
10BASE-T Interface
10TXIN
10TXIP
analog input
analog input
Control Pins
N10/100
TTLIP
EQSEL
3 level IP
LBEN
TTLIP
TXOE
TTLIP
TESTIP
TEST
N/C
test
test
Component Connections
REFCLK
TXREF
LFRB
LFRA
LFTB
LFTA
TTLIP
analog input
analog
analog
analog
analog
Power
TTLGND
RDLVCC
RXPLLGND
RXPLLVCC
RXVCC2
RXGND
RXVCC1
TXVCC
TXGND
RXVCC
SUBGND
BGAPGND
TXPLLGND
TXPLLVCC
TDLVCC
TXLVCC
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
Power
6
Pin Number
Pin Description
4 25MHz recovered receive clock. This is aligned with and used to clock
out the 5 bit parallel receive data to the PCS layer.
5 Signal detect output. This output is high when an input signal of sufficient
amplitude is detected on the RXI inputs.
40 The 100BASE-TX transmit input bit 4
41 The 100BASE-TX transmit input bit 3
42 The 100BASE-TX transmit input bit 2
43 The 100BASE-TX transmit input bit 1
44 The 100BASE-TX transmit input bit 0
47 25MHz transmit clock. This is aligned with and used to clock in the 5 bit parallel
100BASE-TX transmit data from the PCS layer.
48 The 100BASE-TX receive output bit 0
49 The 100BASE-TX receive output bit 1
50 The 100BASE-TX receive output bit 2
51 The 100BASE-TX receive output bit 3
52 The 100BASE-TX receive output bit 4
15 + Differential receive signal input from magnetics
16 – Differential receive signal input from magnetics
22 – Differential transmit line driver outputs to magnetics
23 + Differential transmit line driver outputs to magnetics
19 The filtered 10BASE-T transmit input (–)
20 The filtered 10BASE-T transmit input (+)
36
18
35
33
37
38
2,3,7,8
10/100 mode selection. A low selects the 10BASE-T mode and enables the
data on pins 10TXIP/N to be outut on the TXOP/N pins. A high selects the
100BASE-TX mode, enabling the 100Mb/s drivers.
Mode select input for equalizer. Normally this pin is left unconnected (floating) for
auto-eq. mode. High selects minimum equalization. Low selects full equalization.
Loopback enable input. A high on this pin selects the loopback mode and low selects
normal operation.
Transmit output enable. A high on this pin selects normal operation. A low on this
pin puts both of the TX drivers in tri-state mode.
Test pin. This pin must be left unconnected for proper operation.
Test pin. This pin must be left unconnected for proper operation.
No connection. This pin must be left unconnected for proper operation.
45 25MHz clock input. An external 25MHz oscillator is input to this pin.
25 TXOP/N line driver current setting pin. Connects to TXGND through a resistor.
10 Differential loop filter pin for receive PLL (see fig.6)
11 Differential loop filter pin for receive PLL (see fig.6)
30 Differential loop filter pin for transmit clock PLL (see fig.6)
31 Differential loop filter pin for transmit clock PLL (see fig.6)
1,39 GND for TTL logic I/Os
6 +5V supply to receive logic
9 GND to receive PLL
12 +5V supply to receive PLL
13 +5V supply to adaptive equalizer and QFB circuits
14 GND to to adaptive equalizer and QFB circuits
17 +5V supply to MLT-3 to NRZI converter
21 +5V supply to transmit line driver circuits
24 GND to transmit line driver circuits
26 +5V supply to on-chip bandgap reference
27 Chip substrate GND connection
28 GND to on-chip bandgap reference
29 GND to to transmit clock-multiplier PLL
32 +5V supply to transmit clock-multiplier PLL
34 +5V supply to transmit logic
46 +5V supply to TTL logic I/Os
Table 1: Pin descriptions

6 Page







SeitenGesamt 9 Seiten
PDF Download[ NWK914GP1N Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
NWK914GP1NPHY/PMD High Speed Copper Media TransceiverMitel Networks
Mitel Networks

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche