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Zarlink Semiconductor
Zarlink Semiconductor

NWK914D Datasheet Preview

NWK914D Datasheet

PHY/PMD High Speed Copper Media Transceiver

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NWK914D pdf
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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



Zarlink Semiconductor
Zarlink Semiconductor

NWK914D Datasheet Preview

NWK914D Datasheet

PHY/PMD High Speed Copper Media Transceiver

No Preview Available !

NWK914D pdf
NWK914D
ABSOLUTE MAXIMUM RATINGS
Operation at absolute maximum ratings is not implied.
Exposure to stresses outside those listed could cause
permanent damage to the device.
DC Supply voltage (VCC)
Storage temperature (tst)
ESD
-0.5 to +7V
-65 to +150°C
2kV HBM
RECOMMENDED OPERATING CONDITIONS
DC supply voltages (VCC)
+5V ±5%
Operating temperature (TA) 0°C to +70°C (+25°C typ.)
Power dissipation (PD)
750mW (typ.)
ELECTRICAL CHARACTERISTICS
Recommended operating conditions apply except where stated.
Characteristic
Symbol Min.
Value
Typ.
DC characteristics
Total VCC supply current
TTL high level I/P voltage
TTL low level I/P voltage
TTL high level I/P current
TTL low level I/P current
EQSEL high level I/P voltage
EQSEL low level I/P voltage
EQSEL floating level I/P
EQSEL high level I/P current
EQSEL low level I/P current
TTL high level O/P voltage
TTL low level O/P voltage
TTL high level O/P current
TTL low level O/P current
Transmit O/P current
pins TXOP, TXON
Differential RX I/P
signal voltage
RX I/P common mode voltage
RX I/P impedance
Signal detect threshold
ICC - 150
VIH 2
-
VIL -
-
IIH -
-
IIL -
-
VIH 4.2
-
VIL -
-
VIZ - VCC/2
IIH -
IIL -
-
-
VOH 2.4
VOL -
-
-
IOH -
IOL -
-
-
- 40
- 1.4
- VCC/2
-
VTH -
50
Low voltage shutdown
- 3.8
Max.
-
-
0.8
20
–400
-
0.8
-
1400
–1400
-
0.5
–200
4
-
-
-
24
-
-
PLL characteristics
3dB bandwidth
Damping factor
Peaking
Overshoot
Static error
Jitter
- 50 - kHz
-2-
- - .005 dB
- - 5%
- ±0.5 -
ns
- - 0.5 ns
VCO characteristics
Centre frequency
Deviation
Gain
@125MHz
- 125 -
- ±40 - MHz
- 70 - MHz/V
Units
mA
V
V
µA
µA
V
V
V
µA
µA
V
V
µA
mA
mA
Vp-p
V
-
%
V
MHz
Conditions
device only
VIH = VCC
VIL = 0.4V
VIH = VCC
VIL = 0V
IOH = 20µA
IOL = 4mA
RREF = 1300
100Mb/s data
measured on device pins
100Mb/s data, 0mCable
RX I/Ps floating
k
wrt normalized output of
equalizer
2


Part Number NWK914D
Description PHY/PMD High Speed Copper Media Transceiver
Maker Zarlink Semiconductor
Total Page 9 Pages
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