78Q2123-DB TERIDIAN, 78Q2123-DB Datasheet

Development Tools & Eval/Demo Boards

78Q2123-DB

Manufacturer Part Number
78Q2123-DB
Description
Development Tools & Eval/Demo Boards
Manufacturer
TERIDIAN
Datasheet

Specifications of 78Q2123-DB

Silicon Manufacturer
Teridian
Application Sub Type
MII
Kit Application Type
Interface
Silicon Core Number
78Q2123
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
DESCRIPTION
The 78Q21x3-DB is a design example for a
10/100BASE-TX Mbit/second Fast Ethernet MII
Interface adaptor.
MicroPHY transceiver from Teridian provides the
network
Independent Interface) interface.
Teridian Semiconductor’s MicroPHY is an auto-
sensing,
Ethernet transceiver with full duplex operation
capability.
IEEE-802.3u
management functions are included along with an
extended register set. The MicroPHY five bit PHY
address is defaulted to 0x001.
interfaces to CAT5 UTP cable via a 1:1 transformer.
The transceiver’s transmitter includes on-chip the
pulse shaper and low power line driver.
receiver incorporates a sophisticated combination of
real-time adaptive equalization, an adaptive DC
offset adjustment circuit and baseline wander
correction. Smart squelch circuitry further improves
the receiver’s noise rejection. Full featured auto-
negotiation or parallel detect modes are supported.
The demo board requires operation with a +3.3V
power supply.
Design Kit contains:
© 2006 Teridian Semiconductor Corporation, Proprietary and Confidential
MicroPHY MII Demo Board
Demo Board Parts List
P.C.B. Gerber Files
Demo Board schematic
MicroPHY Data Sheet
physical
auto-switching
The device interfaces directly to the
MII
interface
port.
A 78Q2123 or 78Q2133
10/100BASE-TX
and
Full-featured
The MicroPHY
MII
(Medium
Fast
The
MII
Ordering Number
78Q21x3-DB
- 1 -
10/100Base-TX Interface
RJ45 Pin Assignment
Pin
1
2
3
4
MII:
Pin Assignment:
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Signal
TX+
TX-
RX+
N/C
Medium Independent Interface
(40 Pin Male Subminiature D, 0.050)
Signal
+3.3V
MDIO
MDC
RXD3
RXD2
RXD1
RXD0
RXDV
RXCLK
RXER
TXER
TXCLK
TXEN
TXD0
TXD1
TXD2
TXD3
COL
CRS
+3.3V
78Q21x3-DB MicroPHY
DEMO BOARD MANUAL
MII Evaluation Board
Description
MicroPHY MII Demo Board
Pin
5
6
7
8
Pin
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Signal
N/C
RX-
N/C
N/C
Signal
+3.3V
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
COMMON
+3.3V
February 2006
Rev_2.2
TM

Related parts for 78Q2123-DB

78Q2123-DB Summary of contents

Page 1

... DESCRIPTION The 78Q21x3- design example for a 10/100BASE-TX Mbit/second Fast Ethernet MII Interface adaptor. A 78Q2123 or 78Q2133 MicroPHY transceiver from Teridian provides the network physical interface and Independent Interface) interface. Teridian Semiconductor’s MicroPHY is an auto- sensing, auto-switching 10/100BASE-TX Ethernet transceiver with full duplex operation capability ...

Page 2

... Duplex MII”. Repeat selecting “Full Duplex MII” twice to ensure that everything is configured identically. The MicroPHY can be configured for half-duplex operation to minimize incompatibilities with other transceivers and the Netcom. © 2006 Teridian Semiconductor Corporation, Proprietary and Confidential 78Q21x3-DB MicroPHY MII Evaluation Board DEMO BOARD MANUAL ...

Page 3

... MicroPHY incorporates baseline wander correction circuitry, which allows the receiver to track the incoming data signal when there is excessive transformer droop. For Commercial Temperature (0°C ~ 70°C) Teridian Semiconductor has performed line testing with the following transformers and found their performance acceptable with the MicroPHY: Manufacturer ...

Page 4

... Now most of the transformer vendors also offer industrial temp transformer, which will work with the 78Q2133. Here is the recommended industrial temp transformer list: Manufacturer Part Number Belfuse S558-5999-U5 Pulse HX1148 Halo TG110-E050N5 © 2006 Teridian Semiconductor Corporation, Proprietary and Confidential 78Q21x3-DB MicroPHY MII Evaluation Board DEMO BOARD MANUAL - Rev_2.2 ...

Page 5

... Note: System vendors need to select the proper crystal according to their applications, such as operating environment, product lifetime, and etc since crystal aging, operating temperature, and other factors can affect the crystal frequency tolerance. © 2006 Teridian Semiconductor Corporation, Proprietary and Confidential 78Q21x3-DB MicroPHY MII Evaluation Board ...

Page 6

... U1 VCC Optional ESD 33 Noise PB_GND 9 32 Suppression VCCD INTR 10 31 GNDD TXON 11 30 RX_DV TXOP 12 29 RX_CLK GND 13 78Q2123 28 RX_ER RXIP 14 27 TX_ER RXIN 15 26 TX_CLK VCC 16 25 TX_EN XTLN C14 C15 C16 10pF 10pF 10pF Q1 VCC 25.000MHz C2 C3 ...

Page 7

... C2,C3 3 C4,C12,C13 10 C6,C7,C8,C10,C11 © 2006 Teridian Semiconductor Corporation, Proprietary and Confidential DESCRIPTION PART NUMBER IC, 10/100Mbps LAN TSC 78Q2123 Transceiver RJ45, XFRM, LED, J0011D21B 10BaseT/100BaseTX with LEDs TLA-6T704 without LEDs CRYSTAL, 25.000MHZ ECCM1-25.000MHZ ECCM1 LED, Optional LU20125 RES, 100 RES, 680, Optional RES, 5 ...

Page 8

... Teridian Semiconductor Corporation, Proprietary and Confidential DEMO BOARD MANUAL Top Silkscreen - 78Q21x3-DB MicroPHY MII Evaluation Board Rev_2.2 ...

Page 9

... Teridian Semiconductor Corporation, Proprietary and Confidential 78Q21x3-DB MicroPHY DEMO BOARD MANUAL Top Layer - MII Evaluation Board Rev_2.2 ...

Page 10

... Teridian Semiconductor Corporation, Proprietary and Confidential 78Q21x3-DB MicroPHY DEMO BOARD MANUAL VCC Layer - MII Evaluation Board Rev_2.2 ...

Page 11

... Teridian Semiconductor Corporation, Proprietary and Confidential 78Q21x3-DB MicroPHY DEMO BOARD MANUAL Ground Layer - MII Evaluation Board Rev_2.2 ...

Page 12

... Teridian Semiconductor Corporation, Proprietary and Confidential 78Q21x3-DB MicroPHY DEMO BOARD MANUAL Bottom Layer - MII Evaluation Board Rev_2.2 ...

Page 13

... No responsibility is assumed by Teridian Semiconductor Corporation for use of this product or for any infringements of patents and trademarks or other rights of third parties resulting from its use. No license is granted under any patents, patent rights or trademarks of Teridian Semiconductor Corporation, and the company reserves the right to make changes in specifications at any time without notice. ...

Related keywords