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

X  

LA1061M Datasheet(PDF) 4 Page - Sanyo Semicon Device

No. de pieza LA1061M
Descripción Electrónicos  Antenna Switching Controller
Download  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  SANYO [Sanyo Semicon Device]
Página de inicio  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA1061M Datasheet(HTML) 4 Page - Sanyo Semicon Device

  LA1061M Datasheet HTML 1Page - Sanyo Semicon Device LA1061M Datasheet HTML 2Page - Sanyo Semicon Device LA1061M Datasheet HTML 3Page - Sanyo Semicon Device LA1061M Datasheet HTML 4Page - Sanyo Semicon Device LA1061M Datasheet HTML 5Page - Sanyo Semicon Device LA1061M Datasheet HTML 6Page - Sanyo Semicon Device LA1061M Datasheet HTML 7Page - Sanyo Semicon Device LA1061M Datasheet HTML 8Page - Sanyo Semicon Device  
Zoom Inzoom in Zoom Outzoom out
 4 / 8 page
background image
LA1061M
No.3044-4/8
Functional Description
General Operation
The LA1061M has two inputs for weak and strong
signal detection, and one for multi-path distortion
detection. It has two outputs for Main and Sub-antenna
selection, one of which is selected according to the state
of the inputs. Both outputs can directly drive an antenna
switching pin diode.
Signal Strength Detection
Each signal strength detection input has a built-in
comparator. The weak signal comparator (pin 13) is
driven by the S-meter DC voltage and has a threshold of
approximately 2V. The antenna switching logic selects
the Main antenna when the voltage on this pin is lower
than the threshold, regardless of the state of the other
inputs.
The strong signal detector (pin 14) is driven by the F.E.
AGC voltage and has a threshold of approximately 1V.
The antenna switching logic selects the Sub-antenna if
the voltage on this pin is lower than the threshold, the
weak signal comparator is off, and the multi-path
distortion detector is not already on.
Pin Description
Multi-path Distortion Detection
The IF output signal is high-pass filtered and the
resulting noise signal input through a coupling capacitor
to pin 1, the LA1061M amplifies this signal and applies
AGC to it. The AGC amplifier is designed to detect
multi-path distortion without amplifying noise due to a
weak IF signal. The number of noise pulses within the
period set by the time constant on pin 4 is counted. If it
exceeds a certain limit, and the strong signal detector is
not already on, the antenna switching logic selects the
Main antenna.
Switching Frequency Detection
The LA1061M counts the number of antenna changes
within the time interval set by the time constant on pin
12. The internal D/A converter outputs a current on pin
11, which is converted to a voltage by the resistor
connected to this pin. If this voltage exceeds a certain
value, that is, the switching frequency is too high, the
Main antenna is selected for the period set by the time
constant on pin 10. The Main antenna is selected for this
time regardless of the state of the other inputs.
Pin No.
Function
External circuits
Notes
1
Noise input
Isolate noise components present in the IF output signal
with a high-pass filter, and input via a decoupling
capacitor.
The input impedance of the
LA 1061M varies with input
level. The minimum value is
10k
Ω.
Continued on next page.
Unit (resistance :
Ω, capacitance : F)


Número de pieza similar - LA1061M

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Sanyo Semicon Device
LA1060 SANYO-LA1060 Datasheet
388Kb / 8P
   Antenna Switching Diversity Circuit for Car-Use FM Tuners
LA1065M SANYO-LA1065M Datasheet
118Kb / 8P
   2 Tuner Diversity Circuit for Car FM Tuner
More results

Descripción similar - LA1061M

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
ON Semiconductor
MDC5101 ONSEMI-MDC5101 Datasheet
119Kb / 8P
   ANTENNA SWITCH CONTROLLER
1999 REV 2
MDC5100 ONSEMI-MDC5100 Datasheet
99Kb / 8P
   ANTENNA SWITCH CONTROLLER
REV 0
logo
AUK corp
ND101 AUK-ND101 Datasheet
243Kb / 3P
   Antenna Switching Pin Diode
SDP540Q AUK-SDP540Q Datasheet
181Kb / 3P
   Antenna Switching Pin Diode
logo
Fujitsu Component Limit...
MB3775 FUJITSU-MB3775 Datasheet
485Kb / 25P
   SWITCHING REGULATOR CONTROLLER
logo
Seiko Instruments Inc
S-8533A125FT-TB-X SII-S-8533A125FT-TB-X Datasheet
1Mb / 33P
   SWITCHING REGULATOR CONTROLLER
logo
Agamem Microelectronic ...
AA18380 AGAMEM-AA18380 Datasheet
489Kb / 14P
   Switching Regulator Controller
logo
Fujitsu Component Limit...
MB3776A FUJITSU-MB3776A Datasheet
148Kb / 16P
   Switching Regulator Controller
MB3788 FUJITSU-MB3788 Datasheet
750Kb / 21P
   SWITCHING REGULATOR CONTROLLER
logo
Hitachi Semiconductor
HA17524P HITACHI-HA17524P Datasheet
88Kb / 18P
   Switching Regulator Controller
More results


Html Pages

1 2 3 4 5 6 7 8


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