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TNETEL1400PT Datasheet

  • TNETEL1400PT

  • EtherLoopE TRANSCEIVER

  • 15頁

  • TI

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TNETEL1400
EtherLoop鈩?TRANSCEIVER
SPHS004A 鈥?FEBRUARY 1999 鈥?REVISED MARCH 1999
D
D
D
D
D
D
Single-Chip EtherLoop Transceiver
Programmable Transmit (TX) and Receive
(RX) Gain Via Digital Interface
Low Overall Power Consumption
Power-Down Mode Minimizes Server
Modem Power Consumption in Multiplexed
Applications
Low Noise
Low Distortion
D
D
D
D
All Terminals Protected to Survive, Without
Damage, a Simulated Static Discharge of
1 kV From a 100-pF Capacitor Applied
Through a 1.5-k鈩?Resistor With Respect to
Chip Ground (V
EE
)
Single-Rail 5-V Power Supply
Operating Temperature 鈥?0擄C to 85擄C
Ambient
鈥?Allows Operation in Central Office and
Distributed-Server Modem Applications
48-Pin Thin Plastic Quad Flatpack
PT PACKAGE
(TOP VIEW)
RXOUT
RX_TERM
RXGAIN2
RXGAIN0
RXGAIN1
TX_EN
V
EE
V
EE
V
EE
V
CC
NU
NU
10
V
EE
NU 鈥?Not used
description
The TNETEL1400 is an Etherloop transceiver. EtherLoop technology enables simultaneous voice and Ethernet
communication over local-loop plain old telephone service (POTS) wiring. The TNETEL1400 supports data
rates of up to 6 Mbit/s and POTS wire lengths of up to 21,000 feet. Figure 1 shows a typical system with an
EtherLoop modem located at each end of the POTS line. Each EtherLoop modem has a 10Base-T Ethernet
interface and is responsible for buffering Ethernet data before sending it over the POTS wire. The server-end
(SE) EtherLoop modem is located in a central switching office and can communicate with several client-end
(CE) EtherLoop modems, based on a round-robin arbitration scheme. The CE EtherLoop modem typically is
located at a remote site.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EtherLoop is a trademark of Elastic Networks.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
CBIAS1
REMREF
IP_INT
OP_INT
IN_INT
ON_INT
NU
TXINP
TXINN
NU
V
EE
11
12
V
EE
NU
RXIP
RXIN
NU
V
EE
V
CC
REMN
TXOP
TXON
REMP
V
EE
37
38
39
40
41
42
43
44
45
46
47
48
1
2
3
4
5
6
7
8
9
24
23
22
21
20
19
18
17
16
15
14
13
V
EE
TXGAIN3
TXGAIN2
TXGAIN1
TXGAIN0
ANG
REFP
RXBIAS
TXBIAS
V
CC
V
EE
V
EE
Copyright
漏
1999, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1
PRODUCT PREVIEW
36
35
34
33
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