Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

BU9252S Datasheet(PDF) 5 Page - Rohm

No. de pieza BU9252S
Descripción Electrónicos  Audio digital delay (KARAOKE echo)
Download  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  ROHM [Rohm]
Página de inicio  http://www.rohm.com
Logo ROHM - Rohm

BU9252S Datasheet(HTML) 5 Page - Rohm

  BU9252S Datasheet HTML 1Page - Rohm BU9252S Datasheet HTML 2Page - Rohm BU9252S Datasheet HTML 3Page - Rohm BU9252S Datasheet HTML 4Page - Rohm BU9252S Datasheet HTML 5Page - Rohm BU9252S Datasheet HTML 6Page - Rohm  
Zoom Inzoom in Zoom Outzoom out
 5 / 6 page
background image
5
Multimedia ICs
BU9252S / BU9252F
Circuit operation
(1) External capacitor for signal input pin
Audio signals compressed by the BA7725S or
BA7725FS have their DC component removed by an
AC coupling capacitor and are then input to pin 2 of
BU9252S or BU9252F. At this stage, level deviations
occur because the input signal is capacitor-divided by
this AC coupling capacitor C28 and by sampling hold
capacitor C27 connected to pin 1.
To prevent this, make sure that C27 is much lower
than C28.
(Note: The numbers of external components are the numbers used in the sys-
tem application example.)
(3) Delay timer settings
The delay time (i.e., the length of time the signal is
stored in the SRAM) can be set to any of eight settings
between the maximum and minimum delay times by
setting pins 6, 7 and 8 to the combination of logic sig-
nal inputs that results in the corresponding number of
counts. The maximum and minimum delay times are
determined by the oscillation frequency of the attached
ceramic resonator.
1
2
S / H
C27
C28
The sample-held analog signal is converted to digital
by the serial 8-bit A / D converter and then temporarily
stored in the internal SRAM (2k bytes).
(2) Relationship between oscillation frequency (CLK)
and delay time
Sample rate F = fOSC / 32 (fosc: oscillation frequency)
F = 14.22kHz at fosc = 455kHz
Sample period T = 1 / F
Delay time Dtime = T
× number of counts
The delay time can be set to any of the eight settings shown below by setting the logic inputs of terminals DCNT0
through DCNT2.
Logic input
Count
DCNT1
DCNT2
DCNT0
BU9252S / F
0
0
0
256
18.00
0
0
1
512
36.01
0
1
0
768
54.01
0
1
1
1024
72.02
1
0
0
1280
90.02
1
0
1
1536
108.03
1
1
0
1792
126.03
1
1
1
2048
144.04
BU9252S / F
Delay time (ms) (when fOSC = 455kHz)
CC
C
(t)
(dB)
C : Delay time (ms)


Número de pieza similar - BU9252S

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Rohm
BU9253 ROHM-BU9253 Datasheet
72Kb / 6P
   KARAOKE echo IC
BU9253AS ROHM-BU9253AS Datasheet
72Kb / 6P
   KARAOKE echo IC
BU9253AS ROHM-BU9253AS Datasheet
942Kb / 17P
   Karaoke/Surround Digital Echo
BU9253AS-E2 ROHM-BU9253AS-E2 Datasheet
942Kb / 17P
   Karaoke/Surround Digital Echo
BU9253AS ROHM-BU9253AS_05 Datasheet
942Kb / 17P
   Karaoke/Surround Digital Echo
More results

Descripción similar - BU9252S

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Rohm
BU9253AS ROHM-BU9253AS_05 Datasheet
942Kb / 17P
   Karaoke/Surround Digital Echo
logo
Toshiba Semiconductor
TC9488FG TOSHIBA-TC9488FG Datasheet
320Kb / 12P
   Digital Echo IC for Karaoke
logo
Mitsubishi Electric Sem...
M65850P MITSUBISHI-M65850P Datasheet
71Kb / 11P
   DIGITAL ECHO(DIGITAL DELAY)
M65844P MITSUBISHI-M65844P Datasheet
328Kb / 7P
   DIGITAL ECHO (DIGITAL DELAY)?
logo
Renesas Technology Corp
M65831AP RENESAS-M65831AP Datasheet
4Mb / 15P
   DIGITAL ECHO(DIGITAL DELAY)
logo
Mitsubishi Electric Sem...
M65831AP MITSUBISHI-M65831AP Datasheet
80Kb / 14P
   DIGITAL ECHO (DIGITAL DELAY)
logo
List of Unclassifed Man...
BL0305 ETC1-BL0305 Datasheet
25Kb / 2P
   Digital Echo (Digital Delay)
logo
SHANGHAI BELLING CO., L...
BL0305 BELLING-BL0305 Datasheet
24Kb / 2P
   Digital Echo (Digital Delay)
logo
Renesas Technology Corp
M65850P RENESAS-M65850P Datasheet
151Kb / 12P
   Digital Echo (Digital Delay)
logo
Rohm
BU9253AS ROHM-BU9253AS Datasheet
72Kb / 6P
   KARAOKE echo IC
More results


Html Pages

1 2 3 4 5 6


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   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