Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

LC72709 Scheda tecnica(PDF) 11 Page - Sanyo Semicon Device

Il numero della parte LC72709
Spiegazioni elettronici  FM Multiplex Reception IC for Mobile Systems
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  SANYO [Sanyo Semicon Device]
Homepage  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC72709 Scheda tecnica(HTML) 11 Page - Sanyo Semicon Device

Back Button LC72709 Datasheet HTML 7Page - Sanyo Semicon Device LC72709 Datasheet HTML 8Page - Sanyo Semicon Device LC72709 Datasheet HTML 9Page - Sanyo Semicon Device LC72709 Datasheet HTML 10Page - Sanyo Semicon Device LC72709 Datasheet HTML 11Page - Sanyo Semicon Device LC72709 Datasheet HTML 12Page - Sanyo Semicon Device LC72709 Datasheet HTML 13Page - Sanyo Semicon Device LC72709 Datasheet HTML 14Page - Sanyo Semicon Device LC72709 Datasheet HTML 15Page - Sanyo Semicon Device Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 16 page
background image
• To prevent unnecessary error correction, the vertical correction is not applied to packets that were fully corrected by
horizontal correction or to packets that had no errors.
• Vertical correction is executed when all packet data in the object data was received while frame synchronization was
established and not all of the packet (block) data was corrected by horizontal correction. Vertical correction is not
performed if a whole frame of data with no errors is received, or if the frame was not synchronized. Also, the
corresponding post-vertical correction output data is not output.
• All data can be output, regardless of the correction complete/incomplete, synchronized/unsynchronized reception,
data/packet status or other conditions by setting bit 5 (INT) in the control register to 1. However, there also are cases
where the vertical correction output data is not output as described above.
CPU Interface Basic Restrictions
To save internal memory, this IC uses the smallest possible output buffer. Since the data that the IC receives is written to
memory without any breaks, if data readout is delayed post-correction data that should be read out will be overwritten by
the next data to be output. The output timings in this IC for post-correction (horizontal and vertical) data are stipulated as
follows.
• When preparation of the output data has completed, the IC issues a transfer request by setting the INT pin low.
• For data output, there are periods in which only horizontal data can be output and periods in which both horizontal data
and vertical data can be output.
• Data transfers must be completed within about 9 ms after the INT pin goes low. For periods in which only post-
horizontal correction data can be output, data can be transferred over a period of about 18 ms. Even if the CPU is in the
midst of a read operation, the next output data will be written to the output buffer after the specified period elapses.
• Only one block of data can be read for a single transfer request (INT) for both vertical and horizontal correction. After
vertical correction processing completes, the post-vertical correction data is output in order starting with block number
1, and the parity block data is not output.
Figure 2 External Interface Basic Timing
Notes on Data Output Timing (The relationship with the received data)
Figure 3 shows the timing relationship between the received data and the interrupt control signal INT. However, the
delay component relative to the actually received signal due to the demodulation operations in the MSK demodulation
block is ignored. Block synchronization is established by recognizing the BIC code. As shown in figure 3, the data for the
nth packet can be output during the reception of the next packet, packet number n + 1.
Figure 4 shows the output timing for the post-vertical correction data. Vertical correction is executed when the data for a
whole frame is stored in memory, frame synchronization is established, and furthermore horizontal correction was not
able to correct all the packet data. The timing for the start of vertical correction execution is the head of the frame. During
reception of packets 1 to 28 in the nth frame, horizontal correction is performed on each packet, data is passed to the
CPU, and the remaining unused processing time during that interval is used to apply vertical correction to the data from
the previous frame (frame n – 1). The post-vertical correction data (190 blocks of data) is output in order starting when
the 29th packet (block) is received at the rate of one block of output data for every block received. Of the data in the FM
multiplex broadcast frame structure, only the data in the data blocks is output, and the 190th block (the last data block) is
output while the 218th block is being received. As discussed previously (page 11), of the post-vertical correction output
data, the packet data for which horizontal correction completed fully is not output (the INT signal is not issued).
However, it is not the case that the vertical output is speeded up by the amount of the packet data that is not output. For
example, if data packets 1 to 100 were fully corrected in horizontal correction, the point that the 101st post-vertical
correction packet data is output will not be the reception position block number 29 in figure 4, but the reception position
of packet data number 129.
No. 5876-11/16
LC72709E, 72709W
Only horizontal
data output
Horizontal data
output period
Period when
data cannot be
guaranteed
Horizontal data
output period
Vertical data output period
Horizontal and
vertical data output


Codice articolo simile - LC72709

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Sanyo Semicon Device
LC72700 SANYO-LC72700 Datasheet
200Kb / 14P
   Mobile FM Multiplex Broadcast Receiver LSI
LC72700E SANYO-LC72700E Datasheet
200Kb / 14P
   Mobile FM Multiplex Broadcast Receiver LSI
LC72700G SANYO-LC72700G Datasheet
200Kb / 14P
   Mobile FM Multiplex Broadcast Receiver LSI
LC72705 SANYO-LC72705 Datasheet
166Kb / 14P
   FM Multiplex Receiver IC for VICS Systems
LC72705E SANYO-LC72705E Datasheet
166Kb / 14P
   FM Multiplex Receiver IC for VICS Systems
More results

Descrizione simile - LC72709

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Sanyo Semicon Device
LC72708E SANYO-LC72708E Datasheet
159Kb / 15P
   FM Multiplex Broadcast Reception IC for Mobile VICS Systems
logo
Panasonic Semiconductor
AN7261FBQ PANASONIC-AN7261FBQ Datasheet
54Kb / 5P
   FM multiplex reception IC
logo
Sanyo Semicon Device
LC72705E SANYO-LC72705E Datasheet
166Kb / 14P
   FM Multiplex Receiver IC for VICS Systems
logo
ON Semiconductor
LC72717PW ONSEMI-LC72717PW Datasheet
254Kb / 27P
   Mobile FM Multiplex Broadcast Receiver IC
March, 2014
LC72717PW ONSEMI-LC72717PW_17 Datasheet
324Kb / 27P
   Mobile FM Multiplex Broadcast Receiver IC
June 2017 - Rev. 3
logo
Sanyo Semicon Device
LC72711W SANYO-LC72711W_12 Datasheet
163Kb / 26P
   Mobile FM Multiplex Broadcast (DARC) Receiver IC
LC72711W SANYO-LC72711W Datasheet
155Kb / 29P
   Mobile FM Multiplex Broadcast DARC Receiver IC
LC72717PW SANYO-LC72717PW Datasheet
177Kb / 26P
   Mobile FM Multiplex Broadcast (DARC) Receiver IC
LV3403M SANYO-LV3403M Datasheet
49Kb / 3P
   3 V Operation Filter for FM Multiplex Broadcasting Reception
logo
OKI electronic componet...
MSM9562 OKI-MSM9562 Datasheet
108Kb / 10P
   IC for FM Multiplex Data Demodulation
More results


Html Pages

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


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