DAVICOM DM9301FP

DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
General Description
recovery circuits to minimize bit delay through the
converter (no FIFO is used to buffer data between
the FX and TX interfaces). Furthermore, due to the
excellent rise/fall time control by a built-in waveshaping filter, the DM9301FP needs no external filter
to transport signals to the media on the 100Base-TX
interface.
The DM9301FP is a physical-layer, single-chip, lowpower media converter for 100BASE-TX/FX full
duplex repeater applications. On the TX media side,
it provides a direct interface to Unshielded Twisted
Pair Cable 5 (UTP5) for 100BASE-TX Fast Ethernet.
On the FX media side, it provides a direct interface to
a Pseudo Emitter Coupled Logic level interface
(PECL).
The DM9301FP uses a low power and high
performance CMOS process. It contains the entire
physical layer functions of 100BASE-TX as defined
by IEEE802.3u, including the Physical Coding
Sublayer (PCS), Physical Medium Attachment
(PMA), Twisted Pair Physical Medium Dependent
Sublayer (TP-PMD) and a PECL compliant interface
for a fiber optic module, compliant with ANSI X3.166.
The DM9301FP provides two independent clock
Patent-Pending Circuits
•
Smart adaptive receiver equalizer
•
Digital algorithm for high frequency clock/data
recovery circuit
•
High speed wave-shaping circuit
Block Diagram
PECLSD
Link Status
Monitor &
LED Driver
FXSD
RCVR
Rise/Fall
Time
CTL
25M FXRXCLK
125M FXRXCLK
PECLRXI +/-
PECL
RCVR
RX
CRM
NRZI
to
NRZ
Serial to
Parallel
TX Codegroup
Alignment
Monitor
25M
OSC/XTAL
Scrambler
Parallel
to Serial
NRZ
to
NRZI
NRZI to
MLT-3
MLT-3
Driver
TPTXO+/-
FX Codegroup
Alignment
Monitor
CGM
25M TPRXCLK
125M TPRXCLK
PECLTXO +/-
PECL
TXMT
Final
Version: DM9301FP-DS-F03
June 06, 2007
NRZ
to
NRZI
Parallel
to Serial
Descrambler
Serial to
Parallel
NRZI
to
NRZ
MLT-3 to
NRZI
Adaptive
EQ
TPRXI+/-
RX
CRM
1
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Table of Contents
Block Diagram .......................................................... 1
„ FX Parallel to Serial Converter........................... 13
„ FX NRZ to NRZI Encoder................................... 13
„ Link Monitor and LED Driver .............................. 13
Table of contents...................................................... 2
Absolute Maximum Ratings ................................... 14
Features ................................................................... 3
DC Electrical Characteristics.................................. 15
Pin Configuration: DM9301FP QFP ......................... 4
AC Electrical Characteristics.................................. 16
Pin Description ......................................................... 5
Timing Waveforms ................................................. 17
„ 100BASE-TX to FX Transmit Timing Diagram... 17
„ 100BASE-FX to TX Transmit Timing Diagram... 17
„ 5-Bit Symbol 100Base-TX/FX Transmit Timing
Diagram............................................................... 17
„ 5-Bit Symbol 100Base-TX/FX Receive Timing
Diagram............................................................... 18
General Description.................................................. 1
Functional Description............................................ 10
100Base-FX to TX Operation ................................. 10
„ FX PECL Receiver.............................................. 10
„ FX Receiver Clock Recovery Module................. 10
„ FX NRZI to NRZ Converter ................................ 10
„ FX Serial to Parallel Converter ........................... 11
„ FX Code Group Alignment Monitor .................... 11
„ TX Scrambler...................................................... 11
„ TX Parallel to Serial Converter ........................... 11
„ TX NRZ to NRZI Converter ................................ 11
„ TX NRZI to MLT-3 Converter ............................. 11
„ TX MLT-3 Driver ................................................. 11
100Base-TX to FX Operation ................................. 12
„ TX Signal Detect................................................. 12
„ TX Digital Adaptive Equalization ........................ 12
„ TX MLT-3 to NRZI Decoder................................ 13
„ TX Clock Recovery Module ................................ 13
„ TX NRZI to NRZ Decoder................................... 13
„ TX Serial to Parallel Converter ........................... 13
„ TX Code Group Monitor...................................... 13
„ TX Descrambler.................................................. 13
2
Application Circuit (For Reference Only) ............... 19
Package Information .............................................. 21
Ordering Information .............................................. 22
Disclaimer............................................................... 22
Company Overview................................................ 22
Products ................................................................. 22
Contact Windows ................................................... 22
Warning .................................................................. 22
Final
Version: DM9301FP-DS-F03
June 06, 2007
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Features
• 100BASE-TX/FX single-chip media converter
• Total bit delay from FX to TX interface is 20 bit
times (10 bit times each direction).
• Optional propagate HALT on no Link condition
• Compliant with IEEE802.3u 100BASE-TX standard
• Compliant with ANSI X3T12 TP-PMD 1995
standard
• Compliant with ANSI X3.166 FDDI-PMD
• Supports Half and Full Duplex operation 100Mbps,
the DM9301FP operates in Full Duplex mode at all
times
• High performance 100Mbps clock generator and
data recovery circuit
• Controlled output edge rates in the 100Base-TX
transmitter without the need for an external filter
Final
Version: DM9301FP-DS-F03
June 06, 2007
• LED supports for FX Link, TX link, FX receive data;
TX receives data, and FX code group error and TX
code group error.
• Built in LED test, all LED will light during a reset
condition on the DM9301FP
• Digital clock recovery and regeneration circuit
using an advanced digital algorithm to minimize
jitter
• Supports diagnostic TX to TX analog Loopback
and FX to FX analog Loopback (Loopback at the
NRZI interface)
• Supports diagnostic TX to TX digital Loopback and
FX to FX digital Loopback (Loopback at the 5B
symbol interface)
• Low-power, high-performance CMOS process
• Available in a 100 QFP package
3
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
4
RESET#
TRIDRV
TESTMODE
DGND
DVCC
83
82
81
86
84
DVCC
87
85
TPI0
TPMUX
88
DGND
91
TPI1
TPI2
92
89
TPI3
93
90
DVCC
CONFIGA
94
FXDLPBK
CONFIGB
95
TXDLPBK
97
96
AGND
DGND
98
AGND
99
100
Pin Configuration: DM9301FP QFP
TPRXI+
1
80
FXERRLED#
TPRXI-
2
79
RXD0
AVCC
3
78
DGND
AVCC
4
77
RXD1
AGND
5
76
RXD2
AGND
6
75
DVCC
AVCC
7
74
RXD3
BGREF
8
73
RXD4
BGRET
9
72
DGND
TXCLK
AVCC
10
71
AGND
11
70
RXCLK
AGND
12
69
FXRCVLED#
TPTXO-
13
68
DGND
TPTXO+
14
67
FXLNKLED#
AVCC
15
66
DVCC
AGND
16
65
TPO6
DM9301FP
AGND
17
64
TXLNKLED#
PECLTXO-
18
63
DGND
PECLTXO+
19
62
TXRCVLED#
AGND
20
61
TPO0
AVCC
21
60
TPO1
PECLSD-
22
59
DGND
PECLSD+
23
58
TPO2
PECLRXI-
24
57
TPO3
PECLRXI+
25
56
DVCC
TPO4
43
44
45
46
47
TXD4
TXD3
TXD2
DVCC
TXD1
50
42
DGND
DGND
41
BPSCRAM
49
40
MUXCTL0
48
39
MUXCTL1
TXD0
38
TPEN
FRCFXSD
37
DVCC
DVCC
36
TXERRLED#
51
FXALPBK
52
30
35
29
34
AGND
OSC/XTL#
TXALPBK
DGND
HLTNOLNK
53
33
28
DGND
TPO5
X2
32
54
31
55
27
AVCC
26
AGND
AVCC
OSC/X1
Final
Version: DM9301FP-DS-F03
June 06, 2007
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Pin Description
Pin No.
Media Interface
1, 2
Pin Name
I/O
Description
TPRXI+,
TPRXI-
I
13, 14
TPTXO-,
TPTXO+
O
24, 25
PECLRXI-,
PECLRXI+
I
18, 19
PECLTXO-,
PECLTXO+
O
22, 23
PECLSD-,
PECLSD+
I
100Mbps-TX Differential Input Pair:
These pins are differential receive input for 100BASETX. They are capable of receiving 100BASE-TX MLT-3
data.
100BASE-TX Differential Output Pair:
These outputs drive MLT-3 encoded data over 100Mbps
twisted pair cable and provide controlled rise and fall
times designed to filter the transmitter output,
reducing any associated EMI.
100BASE-FX PECL Receive Data Differential Pair:
These pins are differential receive input for 100BASEFX PECL. They are capable of receiving PECL
100BASE-FX NRZI data.
100BASE-FX Transmit Differential Output Pair:
These outputs drive NRZI encoded data for PECL FX
interface.
100BASE-FX PECL Signal detect:
These pins are differential signals that indicate to the
DM9301FP that the Optical Module interface is
detecting valid optical energy.
Clock and Misc. Interface
27
OSCI/X1
I
28
X2
O
30
OSC/XTL#
I
8
BGREF
I
9
BGRET
I
Final
Version: DM9301FP-DS-F03
June 06, 2007
Crystal or Oscillator Input:
This pin should connect to one side of a 25MHz, 50ppm
crystal if OSC/XTL#=0. This pin is the 25MHz, 50ppm
external TTL oscillator input, if OSC/XTLB=1.
Crystal Oscillator Output:
The other side of a 25MHz, 50ppm crystal should
connect to this pin if OSC/XTL#=0. Leave this pin open
if OSC/XTL#=1.
Crystal or Oscillator Selector Pin:
OSC/XTL#=0: An external 25MHz, 50ppm crystal
should connect to X1 and X2 pins.
OSC/XTL#=1: An external 25MHz, 50ppm oscillator
should connect to X1 and left X2 pin
open.
Bandgap Voltage Reference Resistor:
It connects to a 6.49KΩ, 1% error tolerance resistor
between this pin and BGRET pin 9 to provide an
accurate current reference for the chip.
Bandgap Return
Return pin for 6.49KΩ resistor connection, DO NOT
CONNECT TO GROUND.
5
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Clock and Misc. Interface (Continued)
84
TRIDRV
6
I
85
RESET#
I
34
HLTNOLNK
I
93
95
LED Interface
67
CONFIGA
CONFIGB
I
I
FXLNKLED#
OD
64
TXLNKLED#
OD
69
FXRCVLED#
OD
62
TXRCVLED#
OD
80
FXERRLED#
OD
Tristate Digital Output Pins:
When set high, all digital output pins are set to high
impedance.
Reset: Active Low input that initializes the DM9301FP,
must be asserted low for 30msecs after VCC is stable.
Send Halt on no Link Condition:
Causes the DM9301FP to Send out a Halt symbol to the
TX interface if no FX link active or send out a Halt
symbol to the FX interface if no TX link active.
Propagates a no-link condition to the Link Partner if 1,
Idle symbol if 0. Active high
Config A: Must be connected to GND
Config B: Must be connected to GND
FX Link LED:
Indicates Good Link status for 100Mbps FX operation.
Active low (Open Drain Output)
TX Link LED:
Indicates Good Link status for 100Mbps TX operation.
Active low (Open Drain Output)
FX Receive LED:
Indicates the presence of receive activity for 100Mbps
FX operation. Active low (Open Drain Output)
The DM9301FP incorporates a "monostable" function on
the FXRCVLED output. This ensures that even
minimum size packets generate adequate LED ON to
insure visibility.
TX Receive LED:
Indicates the presence of receive activity for 100Mbps
TX operation. Active low (Open Drain Output)
The DM9301FP incorporates a "monostable" function on
the TXRCVLED output. This ensures that even
minimum size packets generate adequate LED ON to
insure visibility.
FX Error LED:
Indicates an error was detected by the FX Code Group
Alignment Monitor function on the FX receiver. Active
low (Open Drain Output)
The DM9301FP incorporates a "monostable" function on
the FXERRLED output. This ensures that even
minimum size errors generate adequate LED ON to
insure visibility.
Final
Version: DM9301FP-DS-F03
June 06, 2007
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
LED Interface(Continued)
52
TXERRLED#
Diagnostic Port Interface
36
FXALPBK
OD
TX Error LED:
Indicates an error was detected by the TX Code Group
Alignment Monitor function on the TX receiver. Active
low (Open Drain Output)
The DM9301FP incorporates a "monostable" function on
the TXERRLED output. This ensures that even
minimum size errors generate adequate LED ON to
insure visibility.
I
FX Interface Analog Loop Back:
Loops the FX NRZI analog transmit data path to the FX
NRZI analog receive path.
Initiated at an H/W reset. Active high.
TX Interface Analog Loop Back:
Loops the TX NRZI analog transmit data path to the TX
NRZI analog receive path.
Initiated at an H/W reset. Active high.
FX Interface Digital Loop Back:
Loops the FX 5-bit symbol digital transmit data path to
the FX 5-bit symbol digital receive path.
Initiated at an H/W reset. Active high.
TX Interface Digital Loop Back:
Loops the TX 5-bit symbol digital transmit data path to
the TX 5-bit symbol digital receive path.
Initiated at an H/W reset. Active high.
Receive Data 4 through 0:
The receive data 5-bit symbol interface. Data is clocked
out on the falling edge of RXCLK.
Receive Clock:
25 MHz recovered clock, clock source is selected by the
MUXCTL1 and MUXCTL0.
Transmit Data 4 through 0:
The transmit data 5-bit symbol interface. Data is clocked
in on the rising edge of TXCLK.
Transmit Clock:
25 MHz recovered clock, clock source is selected by the
MUXCTL1 and MUXCTL0.
35
TXALPBK
I
96
FXDLPBK
I
97
TXDLPBK
I
79, 77,
76, 74,
73
70
RXD0, RXD1,
RXD2, RXD3,
RXD4
RXCLK
0
48, 47,
45, 44,
43
71
TXD0, TXD1,
TXD2, TXD3,
TXD4
TXCLK
Final
Version: DM9301FP-DS-F03
June 06, 2007
O
I
O
7
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Diagnostic Port Interface (Continued)
39, 40
MUXCTL1,
MUXCTL0
I
Mux. Control 1 and 0:
Used for testing the DM9301FP Data Paths. Set to zero
for normal operation.
Initiated at an H/W reset. Active high.
DATA PATH
MUXCTL1 MUXCTL0
0
0
Normal, FX to TX and TX to FX
65, 54,
55, 57,
58, 60,
61
92, 91, 89,
88
8
TPO6, TPO5,
TPO4, TPO3,
TPO2, TPO1,
TPO0
TPI3, TPI2, TPI1,
TPI0,
O
I
1
0
TX Transmit from TXD[4:0]
TXCLK from TX PLL
TX Receive to RXD[4:0]
RXCLK from TX receive clock
0
1
FX Transmit from TXD[4:0]
TXCLK from FX PLL
FX Receive to RXD[4:0]
RXCLK from FX receive clock
1
1
TX Transmit from TXD[4:0]
TXCLK from TX PLL
FX Receive to RXD[4:0]
RXCLK from FX receive clock
Test Port Output:
Reflects the DM9301FP internal status. Selection of
status indicators is made by using TPEN and TPMUX.
Initiated at an H/W reset. Active high.
Test Port Input:
Controls the DM9301FP internal test features. Selection
of input control is made by using TPEN and TPMUX.
TPEN must be true (one) for this signal to take effect.
Initiated at an H/W reset. Active high.
Final
Version: DM9301FP-DS-F03
June 06, 2007
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Diagnostic Port Interface (Continued)
49
FRCFXSD
I
38
TPEN
I
87
TPMUX
I
41
BPSCRAM
I
Force FX Signal Detect
Forces the DM9301FP FX interface Signal Detect true
Initiated at an H/W reset. Active high.
Test Port Enable:
Enables the DM9301FP Test Port features.
Initiated at an H/W reset. Active high.
Test Port Mux:
Controls the DM9301FP Test Port Input and Output
bits. A value of zero indicates the TX interface and a
value of one indicates the FX interface. TPEN must be
true (one) for this signal to take effect.
Initiated at an H/W reset. Active high.
Bypass Scrambler:
Controls the DM9301FP TX interface Scrambler/Descrambler function. A value of zero indicates to
scramble and de-scramble the TX interface 5-bit
symbol data to and from the FX interface. A value of one
bypasses the scrambler/de-scrambler function.
Initiated at an H/W reset. Active high.
Power and Ground Pins :
The power (VCC) and ground (GND) pins of the DM9301FP are grouped in pairs of two categories - Digital
Circuitry Power/Ground Pairs and Analog Circuitry Power/Ground Pair.
Group A - Digital Supply Pairs
33, 42, 50, 53,
63, 68, 72, 78,
82, 90, 98
DGND
P
Digital Logic Ground.
37, 46, 51, 56,
66, 75, 81, 86,
94
DVCC
P
Digital Logic power supply
Group B - Analog Circuit Supply Pairs
5, 6, 11, 12, 16,
17, 20, 29, 32,
99, 100,
AGND
P
Analog circuit ground
3, 4, 7, 10, 15,
21, 26, 31
AVCC
P
Analog circuit power supply
Final
Version: DM9301FP-DS-F03
June 06, 2007
9
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Functional Description
FX PECL Receiver
The DM9301FP Fast Ethernet single-chip TX/FX media
converter, provides the functionality as specified in
IEEE802.3, integrates the complete 100BASE-TX and a
PECL optic module interface for 100Base-FX. The
DM9301FP implements the PCS, PMA, and TP-PMD
sublayer functions, as defined by specification. The term
“X” will be used to describe the sections used in the fiber
PHY layer interface. The term “X” will be used to describe
the sections used in the twisted-pair PMD layer interface.
The PECL receiver receives NRZI encoded, differential
Pseudo Emitter Coupled Logic level signal. The receiver
converts the receive signal into a single-ended NRZI
signal and presents this signal to the FX Clock Recovery
Module.
FX Receiver Clock Recovery Module
The FX Clock Recovery Module accepts NRZI data from
the PECL receiver. The FX Clock Recovery Module locks
onto the data stream, using a Phase Lock Loop (PLL) and
extracts the 125 MHz reference clock. The extracted and
synchronized clock and data are presented to the FX
NRZI to NRZ Decoder.
100BASE-FX to TX Operation
The block diagram in figure 1 provides an overview of the
functional blocks contained in the FX to TX media
converter interface.
The FX to TX interface includes the following functional
blocks:
•
•
•
•
•
•
•
•
•
•
FX NRZI to NRZ Converter
The receive data stream is required to be NRZI encoded
for compatibility with the standards for 100Base- FX. This
conversion process must be reversed on the transmit end.
The FX NRZI to NRZ decoder receives the NRZI
data stream from the FX Clock Recovery Module
and converts it to a NRZ data stream to be
presented to the FX Serial to Parallel conversion
block.
FX PECL Receiver
FX Receiver Clock Recovery Module
FX NRZI to NRZ Converter
FX Serial to Parallel Converter
FX Code Group Alignment Monitor
TX Scrambler
TX Parallel to Serial Converter
TX NRZ to NRZI Converter
TX NRZI to MLT-3 Converter
TX MLT-3 Driver
PECLSD
FX Link
Status
Monitor
FXSD
RCVR
Rise/Fall
Time
CTL
25M FXRXCLK
125M FXRXCLK
PECLRXI +/-
FX
PECL
RCVR
FX
RX
CRM
FX
NRZI
to
NRZ
FX Serial
to
Parallel
TX
Scrambler
TX
Parallel
to Serial
TX
NRZ
to
NRZI
TX
NRZI to
MLT-3
MLT-3
Driver
TPTXO+/-
FX Codegroup
Alignment
Monitor
25M
OSC/XTAL
CGM
FX to TX Block Diagram
Figure 1
10
Final
Version: DM9301FP-DS-F03
June 06, 2007
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
FX Serial to Parallel Converter
TX Parallel to Serial Converter
The Serial to Parallel converter receives a serial
data stream from the NRZI to NRZ converter, and
converts the data stream to parallel data to be
presented to the scrambler. The parallel data format
presented to the TX scrambler is 5B coded.
The TX Parallel to Serial converter receives parallel
5B scrambled data from the scrambler and
serializes it (converts it from a parallel to a serial
data stream). The serialized data stream is then
presented to the NRZ to NRZI converter block
FX Code Group Alignment Monitor
TX NRZ to NRZI Converter
The FX Code Group Alignment block receives nonaligned 5B data from the FX Serial to Parallel
converter and monitors it for 5B code group
violations. FX Code Group Alignment occurs after
the J/K is detected, and subsequent data is
monitored on a fixed boundary. If a violation is
detected, the FX Code Group Alignment Monitor
block signals the error to the Link Status Monitor
blocks. In turn, the Link Status Monitor block flashes
the FX error LED (FXERRLED#).
After the transmit data stream has been scrambled
and serialized, the data must be NRZI encoded for
compatibility with the TP-PMD standard for
100Base-TX transmission over Category-5
unshielded twisted pair cable.
TX Scrambler
The scrambler also receives data from the FX Serial
to Parallel converter. Data from the serial to parallel
conversion block is 5B symbol encoded. The
scrambler is required to control the radiated
emissions (EMI) by spreading the transmit energy
across the frequency spectrum at the media
connector and on the twisted pair cable in 100BaseTX transmit operation.
TX MLT-3 Converter
The MLT-3 conversion is accomplished by
converting the data stream output from the NRZI
encoder into two binary data streams with
alternately phased logic one events.
TX MLT-3 Driver
The two binary data streams created at the MLT-3
converter are fed to the twisted pair output driver
which converts these streams to current sources
and alternately drives either side of the transmit
transformer primary winding resulting in a minimal
current MLT-3 signal.
By scrambling the data, the total energy presented
to the cable is randomly distributed over a wide
frequency range. Without the scrambler, energy
levels on the cable could peak beyond FCC
limitations at frequencies related to repeated 5B
sequences like continuous transmission of IDLE
symbols. The scrambler output is combined with the
NRZ 5B data from the FX Serial to Parallel
converter via an XOR logic function. The result is a
scrambled data stream with sufficient randomization
to decrease radiated emissions at critical
frequencies.
Final
Version: DM9301FP-DS-F03
June 06, 2007
11
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
100Base-TX to FX Operation
TX Digital Adaptive Equalization
The block diagram in figure 2 provides an overview of the
functional blocks contained in the TX to FX media
converter interface.
When transmitting data at high speeds over copper
twisted pair cable, attenuation based on frequency
becomes a concern. In high speed twisted pair signaling,
the frequency content of the transmitted signal can vary
greatly during normal operation based on the randomness
of the scrambled data stream. This variation in signal
attenuation caused by frequency variations must be
compensated for to ensure the integrity of the received
data. In order to ensure quality transmission when
employing MLT-3 encoding, the compensation must be
Able to adapt to various cable lengths and cable types
depending on the installed environment. The selection of
long cable lengths for a given implementation requires
significant compensation which will be over-kill in a
situation that includes shorter, less attenuating cable
lengths. Conversely, the selection of short or intermediate
cable lengths requiring less compensation will cause
serious under-compensation for longer length cables.
The TX to FX interface contains the following functional
blocks:
•
•
•
•
•
•
•
•
•
•
TX Digital Adaptive Equalization
TX MLT-3 to NRZI
TX Clock Recovery Module
TX NRZI to NRZ Decoder
TX Serial to Parallel Conversion
TX Descrambler
TX Code Group Alignment Monitor
FX Parallel to Serial Conversion
FX NRZ to NRZI
FX PECL Transmitter
TX Signal Detect
The signal detects function meets the specifications
mandated by the ANSI XT12 TP-PMD100Base-TX
standards for both voltage thresholds and timing
parameters.
TX Link
Status
Monitor
TX Codegroup
Alignment
Monitor
25M
OSC/XTAL
CGM
25M TPRXCLK
125M TPRXCLK
PECLTXO +/-
TX
PECL
TXMT
TX
NRZ
to
NRZI
FX
Parallel
to Serial
TX
Descrambler
TX
Serial to
Parallel
TX
NRZI
to
NRZ
TX
MLT-3 to
NRZI
TX
Adaptive
EQ
TPRXI+/-
TX
CRM
TX to FX Block Diagram
Figure 2
12
Final
Version: DM9301FP-DS-F03
June 06, 2007
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Therefore, the compensation or equalization must be
adaptive to ensure proper conditioning of the received
signal independent of the cable length.
Status Monitor block. In turn, the Link Status
Monitor block flashes the TX error LED
(TXERRLED#).
TX MLT-3 to NRZI Decoder
TX Descrambler
The DM9301FP decodes the MLT-3 information from the
TX Digital Adaptive Equalizer into NRZI data.
Because of the scrambling process required to
control the radiated emissions of transmit data
streams, the receiver must descramble the receive
data streams. The TX Descrambler receives
scrambled parallel data streams from the Serial to
Parallel converter, descrambles the data streams,
and presents the data streams to the Code Group
alignment block.
TX Clock Recovery Module
The TX Clock Recovery Module accepts NRZI data
from the MLT-3 to NRZI decoder. The TX Clock
Recovery Module locks onto the data stream and
extracts the 125 MHz reference clock. The
extracted and synchronized clock and data are
presented to the NRZI to NRZ Decoder.
TX NRZI to NRZ Decoder
The TX transmit data stream is required to be NRZI
encoded in for compatibility with the TP-PMD
standard for 100Base-TX transmission over
Category-5 unshielded twisted pair cable. This
conversion process must be reversed on the
receive end. The NRZI to NRZ decoder receives the
NRZI data stream from the TX Clock Recovery
Module and converts it to a NRZ data stream to be
presented to the TX Serial to Parallel conversion
block.
TX Serial to Parallel Converter
The TX Serial to Parallel converter receives a serial
data stream from the TX NRZI to NRZ decoder, and
converts the data stream to parallel data to be
presented to the TX descrambler. The parallel data
format presented to the TX descrambler is 5B
coded.
TX Code Group Monitor
The TX Code Group Alignment block receives nonaligned 5B data from the TX descrambler and
monitors it for 5B code group violations. TX Code
Group Alignment occurs after the J/K is detected,
and subsequent data is monitored on a fixed
boundary. If a violation is detected, the TX Code
Group Monitor block signals the error to the Link
Final
Version: DM9301FP-DS-F03
June 06, 2007
FX Parallel to Serial Converter
The FX Parallel to Serial Converter receives parallel
5B data from the TX de-scrambler and serializes it
(converts it from a parallel to a serial data stream).
The serialized data stream is then presented to the
FX NRZ to NRZI Encoder block
FX NRZ to NRZI Encoder
After the transmit data stream has been serialized,
the data must be NRZI encoded for compatibility
with the standard for 100Base-FX.
Link Monitor and LED Driver
The Link Monitor block monitors both the TX and
FX interfaces for link active, receive data and erring
5-bit stream.
The Link Monitor has the ability to detect each
interfaces link status. The TX will transmit either an
idle symbol or a Halt symbol if the FX link is not
established. Conversely the FX will transmit either
an idle symbol or a Halt symbol if the TX link is not
established. When an o Link” condition exists, the
interface pin called LTNOLNK” will cause Halt
symbols to be transmitted instead of idle symbols.
The link active LED is a static indication of the TX
and FX links. It will be true to indicate the presence
of a link. The receive data and error LED are
generated through a ne-Shot” so that even the
smallest receive or error condition will be indicated.
13
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Absolute Maximum Ratings*
Absolute Maximum Ratings (25°C)
Symbol
Parameter
VCC
Max. Supply Voltage
VIN
DC Input Voltage (VIN)
VOUT
DC Output Voltage(VOUT)
Tstg
Storage Temperature Rang (Tstg)
PD
Power Dissipation (PD)
LT
Lead Temp. (TL, Soldering, 10 sec.)
ESD
ESD rating (Rzap=1.5K,Czap=100pF)
Min.
--0.5
-0.5
-65
-------
Max.
7.0
5.5
5.5
+150
1
240
4000
Unit
V
V
V
°C
W
°C
V
Conditions
Non-operating
Operating Conditions
Symbol
Parameter
DVCC,AVCC
Supply Voltage
Tc
Case Temperature
100BASE-TX
PD
Min.
4.75
0
---
Max.
--85
200
Unit
5.25
°C
mA
Conditions
5V
(Power Dissipation)
*Comments
Stresses above those listed under “Absolute
Maximum Ratings” may cause permanent damage to
the device. These are stress ratings only. Functional
operation of this device at these or any other
14
conditions above those indicated in the operational
sections of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect device reliability.
Final
Version: DM9301FP-DS-F03
June 06, 2007
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
DC Electrical Characteristics (VCC = 5V)
Symbol
Parameter
Min.
TTL Inputs
(DPLXSEL, RESET# )
VIL
Input Low Voltage
VIH
Input High Voltage
2.0
IIL
Input Low Current
-200
IIH
Input High Current
LED Driver Outputs
(FXLINKLED#, TXLINKLED#, FXRXD#,RXRXD#)
VOL
Output Low Voltage
VOH
Output High Voltage
2.4
TPTX Receiver
VICM
RXI+/RXI- Input Common-Mode
1.5
Voltage
TPTX Transmitter
ITD100 100TXO+/- 100BASE-TX Mode
│19│
Differential Output Current
PECL FX Transmitter
IFD100 PECLTX+/- 100BASE-FX Mode
│19│
Differential Output Current
Typ.
Max.
Unit
0.8
V
V
uA
uA
IIL = -400uA
IIH = 100uA
VIN = 0.4V
VIN = 2.7V
0.4
V
V
IOL = 8mA
IOH = -0.1mA
2.0
2.5
V
100 Ω Termination
Across
│20│
│21│
mA
│20│
│21│
mA
100
VOH
PECL Output Voltage – High
VCC1.05
VCC0.88
V
VOL
PECL Output Voltage – Low
VCC1.81
VCC1.62
V
Final
Version: DM9301FP-DS-F03
June 06, 2007
Conditions
15
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
AC Electrical Characteristics (Over full range of operating condition unless specified otherwise)
Symbol
Parameter
Transmitter
tTR/F
100TXO+/- Differential Rise/Fall Time
tTM
100TXO+/- Differential Rise/Fall Time
Mismatch
tTDC
100TXO+/- Differential Output Duty Cycle
Distortion
tT/T
100TXO+/- Differential Output Peak-toPeak Jitter
XOST
100TXO+/- Differential Voltage Overshoot
PECL Transmitter (FX Transmit Interface)
ptTR/F
100FXTD+/- Differential Rise/Fall Time
ptTM
100FXTD+/- Differential Rise/Fall Time
Mismatch
ptTDC
100FXTD+/- Differential Output Duty Cycle
Distortion
ptPPJ
100FXTD+/- Differential Output Peak-toPeak Jitter
ptDDJ
100FXTD+/- Differential Output Data
Dependent Jitter
Clock Specifications
XNTOL
TX Input Clock Frequency Tolerance
(Oscillator or Crystal input frequency)
XBTOL
TX Output Clock Frequency Tolerance
tPWH
OSC Pulse Width High
tPWL
OSC Pulse Width Low
tRPWH
RX_CLK Pulse Width High
tRPWL
RX_CLK Pulse Width Low
16
Min.
Typ.
Max.
Unit
3.0
-0.5
5.0
0.5
ns
ns
-0.5
0.5
ns
300
Conditions
ps
5
%
1.0
-0.5
2.0
0.5
ns
ns
-0.5
0.5
ns
300
ps
2.0
ns
-50
+50
ppm
25MHz Frequency
-100
14
14
14
14
+100
ppm
ns
ns
ns
ns
25MHz Frequency
Preliminary
Version: DM9301FP-DS-F03
June 06, 2007
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Timing Waveforms
100BASE-TX to FX Transmit Timing Diagram
TPRXI+/tFXpd
PECLTX+/-
100BASE-TX to FX Transmit Timing Parameters
Symbol
Parameter
Min.
tFXpd
TPRXI+/- to PECLTX+/- Out (FX Latency)
-
Typ1.
-
Max.
Unit
10
BT
Typ1.
-
Max.
Unit
10
BT
Conditions
100BASE-FX to TX Transmit Timing Diagram
PECLTX+/tTXpd
TPRXI+/-
100BASE-FX to TX Transmit Timing Parameters
Symbol
tTXpd
Parameter
Min.
PECLRX+/- to TPTXo+/- Out (TX
Latency)
-
Conditions
5-Bit Symbol 100Base-TX/FX Transmit Timing Diagram
TXCLK
tTXS
tTXh
TXD [4:0]
100TX+/-
tTXD pdtpo
tTXDpdfxo
tTXrft
100FX+/-
Final
Version: DM9301FP-DS-F03
June 06, 2007
17
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
5-Bit Symbol 100Base-TX/FX Transmit Timing Parameters
Symbol
Parameter
Min.
tTXs
tTXh
TXD[4:0] Setup To TX_CLK High
TXD[4:0] Hold From TX_CLK
High
TXD[4:0] Sampled To TPTXO
(TXD to TP Latency)
TXD[4:0] Sampled To PECLTXO
(TXD to FX Latency)
100TX Driver Rise/Fall Time
tTXDpdtpo
tTXDpdfxo
tTXr/f
Max.
Unit
11
0
Typ.1
-
-
ns
ns
-
-
6
BT
-
-
4
BT
3
4
5
ns
Conditions
90% To 10%, Into
100ohm Differential
1. Typical values are at 25and are for design aid only; not guaranteed and not subject to production testing.
5-Bit Symbol 100Base-TX/FX Receive Timing Diagram
RXCLK
tRXS tRXh
RXD [4:0]
tRXDpdtxi
tRXD pdfxi
TX RXI+/FX RXI+/-
5-Bit Symbol 100Base-TX/FX Receive Timing Parameter
Symbol
tRXs
tRXh
tRXDpdtxi
tRXDpdfxi
18
Parameter
RXD[4:0) Setup To RX_CLK
High
RXD[4:0]Hold From RX_CLK
High
TXRXI In To RXD[0:3] Out (Rx
Latency)
PECLRDI In To RXD[4:0] Out
(Rx Latency)
Min.
Max.
Unit
10
Typ1.
-
-
ns
10
-
-
ns
-
-
6
BT
-
-
4
BT
Conditions
Preliminary
Version: DM9301FP-DS-F03
June 06, 2007
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
MII Application Circuit: DM9301FP QFP (For Reference Only)
Final
Version: DM9301FP-DS-F03
June 06, 2007
19
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
MII Application Circuit: DM9301FP QFP (For Reference Only)
470 ohm
R1
VCC
place caps close
to U1 pins
Isolation Barrier. No Power under this area.
All these components and their traces should
not intersect other areas.
470 ohm
R2
VCC
D1
470 ohm
R3
C1
C2
C3
C4
10uf
SMD-B
.1uf
.01uf
.1uf
470 ohm
R4
VCC
470 ohm
R6
RJ45
J1
D2
75 1%
DVCC
TPO5
GND
TXERRLED#
VCC
7
6
5
4
75 1%
C8
VCC
10K
81
GND
82
GND
83
GND
84
RESET#
85
VCC
86
C9
10uf
S1
SW PUSHBUTTON
87
88
SMD-B
89
90
91
GND
92
93
VCC
94
95
TX CKT POWER/GROUND AREA
96
97
C22
98
.1uf
99
100
GND
TXD2
TPMUX
TXD3
TPI0
TXD4
DGND
TPI1
DM9301F (TCO)
MUXCTL0
TPI3
MUXCTL1
TPEN
CONFIGA
DVCC
DVCC
CONFIGB
FXALPBK
FXDLPBK
TXALPBK
TXDLPBK
HLTNOLNK
DGND
DGND
AGND
AGND
AGND
AVCC
.1uf
GND
49.9 1%
49
GND
GND
48
GND
47
GND
46
VCC
45
GND
44
GND
43
GND
TPRXI-
2
TPRXI+
1
8
9
7
10
6
11
5
12
4
13
3
14
2
15
1
16
9
GND
10
11
12
13
R10
75 1%
14
15
TPTXO-
16
TPTXO+
PE68515
GND
VCC
42
GND
41
BPSCRAM
40
GND
39
GND
38
3
.1uf
1
2
3
4
VCC
36
GND
35
GND
Disable Scrambler
CON4
GND
37
J?
GND
Pop Table For :
3.3V
34
1
2
3
4
HLTNOLNK
33
GND
32
GND
31
VCC
R19
R20
R21
R22
R23
R24
optic
U3
C10
C11
R25
R26
R12
R13
R27
R28
R29
R30
Halt If No Link
CON4
GND
R20
OSC/XTL#
R13
30
AGND
OSC/X1
AVCC
X2
29
28
PECLRXI+
PECLRXI-
PECLSD+
62/ 69.8
R19
0 Ohm
R12
VCC
3.3V
0 Ohm
GND
GND
X2
Y1
C13
18pF
49.9 1%
Load ONLY R12 OR R13
R12=+5V for HFBR Large Optic
R13=3.3V for Siemans V23812 Optic.
25M
L3
1uH
C14
18pF
L4
1uH
C15
GND
Place these components as
close to Optics as
possible.
182
69.8
182
69.8
13.2K
127
FX1
In
In
In
127
127
out
0
83
83
19.8K
83
300
62
300
62
130
82
FX2
out
out
out
82
82
0
out
130
130
374
130
C16
GND
.1uf
300/ 182
VCC
5.0V
VCC J?
VCC
PECLSD+
PECLRXI+
PECLRXI-
PECLSD-
OSC/X1 27
26
25
24
23
PECLSD-
AGND
PECLTXO+
PECLTXO-
AVCC
22
21
20
18
19
GND
PECLTXO-
R17
R16
49.9 1%
VCC
AGND
AVCC
AGND
17
GND
16
15
GND
VCC
TPTXO-
AGND
AGND
TPTXO+
14
13
GND 12
AVCC
10
VCC
GND 11
BGRET
9
AVCC
AGND
BGREF
8
6
7
VCC
AGND
R18
VCC
PECLTXO+
49.9 1%
C12
TPTXO+
GND
TPTXO-
.1uf
R15
.01uf
BFRET
.01uf
6.49K 1%
.1uf
GND
R14
.01uf
5
TPRXI+
C29
BFREF
C28
GND
C27
TPRXI+ 1
C26
50
C5
GND
place caps close
to U1 pins
C25
BPSCRAM
TPI2
AVCC
Digital Ckt Power & Ground Area
Locate near U1's VCC & Ground Pins
Physically place caps on SOLDER
SIDE.
DVCC
4
.01uf
DVCC
VCC
C21
TXD1
RESET#
AVCC
.1uf
TXD0
TRIDRV
TPRXI-
C20
.01uf
TESTMODE
3
C19
.1uf
FRCFXSD
2
C18
DGND
TPRXI-
C17
.01uF
DGND
VCC
VCC
BYPASS CAPACITOR FOR U1
DVCC
DGND
U2
8
R9
VCC
75 1%
.1uf /1KV
GND
R11
R7
U1
51
52
53
54
TPO5
DGND
TPO4
R8
TXERRLED#
TPO2
TPO3
VCC
TPO4
55
56
58
57
TPO3
TPO2
DVCC
TPO0
TPO1
GND
TXRCVLED#
GND
59
TPO1
DGND
60
62
63
61
TPO0
DGND
TXRCVLED#
VCC
TXLNKLED#
64
TPO6
LED
D4
TXLNKLED#
GND
FXLNKLED#
FXRCVLED#
TPO6
65
66
DVCC
67
69
68
DGND
FXRCVLED#
RXCLK
D6
FXLNKLED#
RXD4
TXCLK
RXCLK
70
71
TXCLK
RXD3
VCC
GND
72
DGND
74
75
GND
RXD1
RXD0
RXD2
76
77
78
79
73
RXD4
RXD3
10uf
GND
DVCC
.1uf
D3
RXD2
Ferrite Hi current
SMD-B
C7
RXD1
C6
L2
Power Jack
80
VCC
RXD0
Ferrite Hi current
FXERRLED#
L1
DGND
Plus 5 volt D.C. input
J2
470 ohm
R5
FXERRLED#
D5
1
2
3
4
5
6
7
8
Both LEDs in one package.
D2 is upper LED (TxLnk)
GND
C23
.1uf
.1uf
R21
GND
300/ 182
This node will be 3.3V or 5V
depending on strapping.
3.3V SOT-223
800ma
R22
62/ 69.8
GND
HFBR5103T
FX2
VCC_R
VCC
2
C11
1
U3
PECLTXO+
3.3V
C10
.1uf
10uf
SMD-B
GND
130/13.2K
82/ 127
R23
R25
82/ 127
PECLRXI-
GND
R26
82/127
C24
PECLRXI+
R24
.1uf
Load ONLY for 3.3V
Siemans V23812 Optics.
GND
9
8
7
6
5
4
3
2
1
PECLTXO-
R27
130/83
R28
130/ 83
GND
R29
374/19.8K
GND
PECLSD+
Vout
PECLSD-
Vin
GND
VCC_T
3
PECLTXO+
PECLTXOPECLSD+
PECLRXIPECLRXI+
GND
VCC_T
VCC_R
GND
9
8
7
6
5
4
3
2
1
VCC_T
VCC_R
PECLSD+
PECLRXI-
V23818-C8-V10
FX1
PECLRXI+
GND
R30
130 /83
DAVICOM SEMICONDUCTOR, INC.
GND
Title
9301 Media Converter
Size
Document Number
Custom
Date:
20
Monday , April 24, 2000
Rev
1.1
DM9301.DSN
Sheet
1
of
1
Preliminary
Version: DM9301FP-DS-F03
June 06, 2007
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Package Information
100 Pins QFP Package Outline Information:
Symbol
A
A1
A2
B
C
D
D1
E
E1
e
L
L1
y
θ
Dimension in mm
Min
Nom
Max
-
-
3.40
0.25
-
-
2.73
2.85
2.97
0.25
0.30
0.38
0.13
0.15
0.23
23.00
23.20
23.40
19.90
20.00
20.10
17.00
17.20
17.40
13.90
14.00
14.10
0.65 BSC
0.73
0.88
1.03
1.60 BSC
-
-
0.10
o
o
0
-
7
Dimension in inch
Min
Nom
Max
-
-
0.134
0.010
-
-
0.107
0.112
0.117
0.010
0.012
0.015
0.005
0.006
0.009
0.906
0.913
0.921
0.783
0.787
0.791
0.669
0.677
0.685
0.547
0.551
0.555
0.026 BSC
0.029
0.035
0.041
0.063 BSC
-
-
0.004
o
o
0
-
7
1. Dimension D1 and E1 do not include resin fin.
2. All dimensions are base on metric system.
3. General appearance spec should base on its final visual inspection spec.
Final
Version: DM9301FP-DS-F03
June 06, 2007
21
DM9301FP
100Mbps Ethernet Fiber/Twisted Pair Single Chip Media Converter
Ordering Information
Part Number
DM9301FP
Pin Count
100
Package
QFP
(Pb-Free)
Disclaimer
DAVICOM‘s terms and conditions printed on the order
acknowledgment govern all sales by DAVICOM. DAVICOM
will not be bound by any terms inconsistent with these
unless DAVICOM agrees otherwise in writing. Acceptance
of the buyer’s orders shall be based on these terms.
Company Overview
The information appearing in this publication is believed to
be accurate. Integrated circuits sold by DAVICOM
Semiconductor are covered by the warranty and patent
indemnification provisions stipulated in the terms of sale
only. DAVICOM makes no warranty, express, statutory,
implied or by description regarding the information in this
publication or regarding the information in this publication or
regarding the freedom of the described chip(s) from patent
infringement. FURTHER, DAVICOM MAKES NO
WARRANTY OF MERCHANTABILITY OR FITNESS FOR
ANY PURPOSE. DAVICOM reserves the right to halt
production or alter the specifications and prices at any time
without notice. Accordingly, the reader is cautioned to verify
that the data sheets and other information in this publication
are current before placing orders. Products described
herein are intended for use in normal commercial
applications. Applications involving unusual environmental
or reliability requirements, e.g. military equipment or medical
life support equipment, are specifically not recommended
without additional processing by DAVICOM for such
applications. Please note that application circuits illustrated
in this document are for reference purposes only.
DAVICOM Semiconductor, Inc. develops and manufactures
integrated circuits for integration into data communication
products. Our mission is to design and produce IC products
that are the industry’s best value for Data, Audio, Video, and
Internet/Intranet applications. To achieve this goal, we have
built an organization that is able to develop chipsets in
response to the evolving technology requirements of our
customers while still delivering products that meet their cost
requirements.
Products
We offer only products that satisfy high performance
requirements and which are compatible with major
hardware and software standards. Our currently available
and soon to be released products are based on our
proprietary designs and deliver high quality, high
performance chipsets that comply with modem
communication standards and Ethernet networking
standards.
Contact Windows
For additional information about DAVICOM products, contact the sales department at:
Headquarters
Hsin-chu Office:
No.6 Li-Hsin Rd. VI,
Science-based Industrial Park,
Hsin-chu City, Taiwan, R.O.C.
TEL: 886-3-5798797
FAX: 886-3-5646929
Davicom America Corp
4633 Old Ironsides Dr., STE 318
Santa Clara,
CA 95054, USA
Tel: 408.980.9108
Fax:408.980.9236
WARNING
Conditions beyond those listed for the absolute maximum may destroy or damage the products. In addition, conditions for sustained periods at near the
limits of the operating ranges will stress and may temporarily (and permanently) affect and damage structure, performance and/or function.
22
Preliminary
Version: DM9301FP-DS-F03
June 06, 2007