Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

TDA4655 Scheda tecnica(PDF) 6 Page - NXP Semiconductors

Il numero della parte TDA4655
Spiegazioni elettronici  Generic multi-standard decoder
Download  17 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA4655 Scheda tecnica(HTML) 6 Page - NXP Semiconductors

Back Button TDA4655 Datasheet HTML 2Page - NXP Semiconductors TDA4655 Datasheet HTML 3Page - NXP Semiconductors TDA4655 Datasheet HTML 4Page - NXP Semiconductors TDA4655 Datasheet HTML 5Page - NXP Semiconductors TDA4655 Datasheet HTML 6Page - NXP Semiconductors TDA4655 Datasheet HTML 7Page - NXP Semiconductors TDA4655 Datasheet HTML 8Page - NXP Semiconductors TDA4655 Datasheet HTML 9Page - NXP Semiconductors TDA4655 Datasheet HTML 10Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 17 page
background image
June 1993
6
Philips Semiconductors
Preliminary specification
Generic multi-standard decoder
TDA4655
demodulated signal. The result is an
identification signal (PIDT, pin 15) that
is positive for a PAL signal in PAL
mode, for a SECAM signal in SECAM
mode and for a PAL signal in
NTSC 4.4 mode.
If PIDT is positive in SECAM mode,
the scanner switches back to the PAL
mode in order to prevent a PAL signal
being erroneously identified as a
SECAM signal (PAL priority). If then
PIDT is not positive, the scanner
returns to SECAM mode and remains
there until PIDT is positive again. In
the event of a field frequency of 60 Hz
the signal can not be identified as a
SECAM signal, even if PIDT is
positive. In this event the scanner
switches forward in the NTSC 3.5
mode. If the H/2 signal has the wrong
polarity, the identification signal is
negative and the H/2 flip-flop is set to
the correct phase.
The third demodulator operates in
NTSC mode and is active during the
burstkey pulse. The resulting
identification signal (NIDT, pin 14) is
positive for PAL and NTSC 4.4
signals in NTSC 4.4 mode and for
NTSC 3.5 signals in the NTSC 3.5
mode. The reference signal has the
(B
−Y) phase.
The two identification signals allow an
unequivocal identification of the
received signal. In the event of a
signal being identified, the scanning is
stopped and after a delay time the
colour is switched on.
The standard outputs (active HIGH)
are available at the pins 20, 21, 22
and 23. During scanning the HIGH
level is 2.5 V and when a signal has
been identified the HIGH level is
switched to 6 V. The standard pins
can also be used as inputs in order to
force the IC into a desired mode
(Forced Standard Setting).
Sandcastle detector and pulse
processing
In the sandcastle detector the super
sandcastle pulse (SC) present at pin
24 is compared with three internal
threshold levels by means of three
differential amplifiers. The derived
signals are the burstkey pulse, the
horizontal blanking pulse and the
combined horizontal and vertical
blanking pulse. These signals are
processed into various control pulses
required for the timing of the IC.
Bandgap reference
In order to ensure that the CD output
signals and the threshold levels of the
sandcastle detector are independent
of supply voltage variations a
bandgap reference voltage has been
integrated.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
THERMAL RESISTANCE
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
Tstg
storage temperature
−25
+150
°C
Tamb
operating ambient temperature
0
+70
°C
Vp
supply voltage
8.8
V
Ptot
power dissipation
without load
330
mW
V24
voltage at pin 24
Imax =10 µA
15
V
voltage at all other pins
Imax = 100 µA
VP +
Vbe
V
SYMBOL
PARAMETER
THERMAL RESISTANCE
Rth j-a
thermal resistance on printed-circuit board from
junction to ambient in free air (without heat spreader)
SO 24
90 K/W
SDIL 24
70 K/W


Codice articolo simile - TDA4655

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
NXP Semiconductors
TDA4650 PHILIPS-TDA4650 Datasheet
147Kb / 13P
   Multistandard colour decoder, with negative colour difference output signals
March 1991
TDA4650WP PHILIPS-TDA4650WP Datasheet
147Kb / 13P
   Multistandard colour decoder, with negative colour difference output signals
March 1991
TDA4651 PHILIPS-TDA4651 Datasheet
147Kb / 15P
   Multistandard colour decoder with negative colour difference output signals
August 1993
TDA4651WP PHILIPS-TDA4651WP Datasheet
147Kb / 15P
   Multistandard colour decoder with negative colour difference output signals
August 1993
TDA4657 PHILIPS-TDA4657 Datasheet
121Kb / 17P
   Generic multi-standard decoder
June 1993
More results

Descrizione simile - TDA4655

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
NXP Semiconductors
TDA4657 PHILIPS-TDA4657 Datasheet
121Kb / 17P
   Generic multi-standard decoder
June 1993
logo
Cirrus Logic
CS49400 CIRRUS-CS49400 Datasheet
1Mb / 100P
   Multi-Standard Audio Decoder Family
CS49300 CIRRUS-CS49300_06 Datasheet
1Mb / 90P
   Multi-Standard Audio Decoder Family
CS49300 CIRRUS-CS49300 Datasheet
1Mb / 86P
   Multi-Standard Audio Decoder Family
logo
Silicon image
MSVD-HD SILICONIMAGE-MSVD-HD Datasheet
178Kb / 2P
   Multi-Standard High-Definition Video Decoder
logo
STMicroelectronics
STA660 STMICROELECTRONICS-STA660 Datasheet
212Kb / 8P
   DAB/DAB/DMB-A multi-standard digital radio decoder
February 2019 Rev 1
logo
List of Unclassifed Man...
TW9903 ETC-TW9903 Datasheet
630Kb / 74P
   TW9903-Multi-standard Video Decoder With High Quality Down Scaler
logo
Fujitsu Component Limit...
MB86H01 FUJITSU-MB86H01 Datasheet
140Kb / 2P
   SD Multi-Standard Decoder for Set-Top-Box and iDTV
logo
Synaptics Incorporated.
CX25850 CONEXANT-CX25850 Datasheet
187Kb / 2P
   Multi-Channel Video Decoder
logo
Toshiba Semiconductor
TC90104AFG TOSHIBA-TC90104AFG Datasheet
750Kb / 16P
   Multi System Video Decoder
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
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