Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

TDA5051AT Folha de dados(PDF) 5 Page - NXP Semiconductors

Nome de Peças TDA5051AT
Descrição Electrónicos  Home automation modem
Download  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  NXP [NXP Semiconductors]
Página de início  http://www.nxp.com
Logo NXP - NXP Semiconductors

TDA5051AT Folha de dados(HTML) 5 Page - NXP Semiconductors

  TDA5051AT Datasheet HTML 1Page - NXP Semiconductors TDA5051AT Datasheet HTML 2Page - NXP Semiconductors TDA5051AT Datasheet HTML 3Page - NXP Semiconductors TDA5051AT Datasheet HTML 4Page - NXP Semiconductors TDA5051AT Datasheet HTML 5Page - NXP Semiconductors TDA5051AT Datasheet HTML 6Page - NXP Semiconductors TDA5051AT Datasheet HTML 7Page - NXP Semiconductors TDA5051AT Datasheet HTML 8Page - NXP Semiconductors TDA5051AT Datasheet HTML 9Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 29 page
background image
TDA5051A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 5 — 13 January 2011
5 of 29
NXP Semiconductors
TDA5051A
Home automation modem
8.
Functional description
Both transmission and reception stages are controlled either by the master clock of the
microcontroller or by the on-chip reference oscillator connected to a crystal. This ensures
the accuracy of the transmission carrier and the exact trimming of the digital filter, thus
making the performance totally independent of application disturbances such as
component spread, temperature, supply drift and so on.
The interface with the power network is made by means of an LC network (see Figure 15).
The device includes a power output stage that feeds a 120 dB
μV (RMS) signal on a
typical 30
Ω load.
To reduce power consumption, the IC is disabled by a power-down input (pin PD): in this
mode, the on-chip oscillator remains active and the clock continues to be supplied at
pin CLK_OUT. For low-power operation in reception mode, this pin can be dynamically
controlled by the microcontroller, see Section 8.4 “Power-down mode”.
When the circuit is connected to an external clock generator (see Figure 6), the clock
signal must be applied at pin OSC1 (pin 7); OSC2 (pin 8) must be left open-circuit.
Figure 7 shows the use of the on-chip clock circuit.
All logic inputs and outputs are compatible with TTL/CMOS levels, providing an easy
connection to a standard microcontroller I/O port.
The digital part of the IC is fully scan-testable. Two digital inputs, SCANTEST and TEST1,
are used for production test: these pins must be left open-circuit in functional mode
(correct levels are internally defined by pull-up or pull-down resistors).
8.1 Transmission mode
To provide strict stability with respect to environmental conditions, the carrier frequency is
generated by scanning the ROM memory under the control of the microcontroller clock or
the reference frequency provided by the on-chip oscillator. High frequency clocking rejects
the aliasing components to such an extent that they are filtered by the coupling
LC network and do not cause any significant disturbance. The data modulation is applied
through pin DATA_IN and smoothly applied by specific digital circuits to the carrier
(shaping). Harmonic components are limited in this process, thus avoiding unacceptable
disturbance of the transmission channel (according to CISPR16 and EN50065-1
recommendations). A
−55 dB Total Harmonic Distortion (THD) is reached when the typical
LC coupling network (or an equivalent filter) is used.
The DAC and the power stage are set in order to provide a maximum signal level of
122 dB
μV (RMS) at the output.
The output of the power stage (TX_OUT) must always be connected to a decoupling
capacitor, because of a DC level of 0.5VDD at this pin, which is present even when the
device is not transmitting. This pin must also be protected against overvoltage and
negative transient signals. The DC level of TX_OUT can be used to bias a unipolar
transient suppressor, as shown in the application diagram (see Figure 15).
Direct connection to the mains is done through an LC network for low-cost applications.
However, an HF signal transformer could be used when power-line insulation has to be
performed.


Nº de peça semelhante - TDA5051AT

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
NXP Semiconductors
TDA5051AT PHILIPS-TDA5051AT Datasheet
152Kb / 28P
   Home automation modem
1999 May 31
TDA5051AT NXP-TDA5051AT Datasheet
265Kb / 29P
   Home automation modem
Rev. 5-13 January 2011
More results

Descrição semelhante - TDA5051AT

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
STMicroelectronics
ST7537HS1 STMICROELECTRONICS-ST7537HS1 Datasheet
138Kb / 9P
   HOME AUTOMATION MODEM
June 1995
logo
NXP Semiconductors
1648290 NXP-1648290 Datasheet
265Kb / 29P
   Home automation modem
Rev. 5-13 January 2011
TDA5051 PHILIPS-TDA5051 Datasheet
147Kb / 28P
   Home automation modem
1997 Sep 19
TDA5051A PHILIPS-TDA5051A Datasheet
152Kb / 28P
   Home automation modem
1999 May 31
logo
Silicon Laboratories
EZR32LG230 SILABS-EZR32LG230 Datasheet
1Mb / 87P
   Building and home automation
logo
OmniVision Technologies...
OV798 OMNIVISION-OV798 Datasheet
707Kb / 2P
   Battery Home Automation Cameras
logo
Silicon Laboratories
EZR32WG230 SILABS-EZR32WG230 Datasheet
1Mb / 87P
   Building and home automation
EZR32WG330 SILABS-EZR32WG330 Datasheet
1Mb / 87P
   Building and home automation
EFR32BG1 SILABS-EFR32BG1 Datasheet
2Mb / 163P
   Home and Building Automation
EZR32LG330 SILABS-EZR32LG330 Datasheet
1Mb / 87P
   Building and home automation
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com