an5290s Panasonic Corporation of North America, an5290s Datasheet

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an5290s

Manufacturer Part Number
an5290s
Description
Antenna Diversity Ic For On-vehicle Tv
Manufacturer
Panasonic Corporation of North America
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
an5290sA
Manufacturer:
PANASONIC/松下
Quantity:
20 000
ICs for TV
AN5290S
Antenna diversity IC for on-vehicle TV
■ Overview
changeover circuit are integrated on a single chip. It is destined for NTSC/PAL system.
■ Features
■ Applications
■ Package
■ Block Diagram
Publication date: June 2006
• Built-in vertical and horizontal synchronizing circuit
• It outputs changeover pulse for noise canceler.
• Built-in antenna changeover stop function
• On-vehicle televisions
• SOP024-P-0375C
The AN5290S is an on-vehicle television antenna-diversity IC in which the noise detection circuit and antenna
1st noise
amp.
Sync.
sepa.
choice
ANT
control
2nd noise
Sync.
amp.
Horizontal
OSC
comparator
Noise
switch control
select control
SDB00011CEB
ANT
ANT
Vertical
OSC
Diversity
On/Off
switch
V-sync.
sepa.
select decoder
switch driver
Charge
Phase
pump
det.
ANT
ANT
divider
VCO
1/12
1

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an5290s Summary of contents

Page 1

... AN5290S Antenna diversity IC for on-vehicle TV ■ Overview The AN5290S is an on-vehicle television antenna-diversity IC in which the noise detection circuit and antenna changeover circuit are integrated on a single chip destined for NTSC/PAL system. ■ Features • Built-in vertical and horizontal synchronizing circuit • ...

Page 2

... AN5290S ■ Pin Descriptions Pin No. Description 1 Antenna selection level holding capacitance 2 Sync. separation video signal input 3 Horizontal sync. signal AFC output 4 Horizontal sync. signal oscillation time- constant setting 5 Horizontal sync. signal output 6 Output for noise canceler 7 Vertical sync. signal output 8 GND 9 Vertical sync ...

Page 3

... Antenna selection output pin, AS2 max. current, when pin Antenna selection output pin, AS3 max. current, when pin Antenna selection output pin, AS4 max. current, when pin SDB00011CEB AN5290S Min Typ Max Unit 12.0 20.0 28.0 mA 15.58 15.68 15.78 kHz 186 188.2 ...

Page 4

... AN5290S ■ Technical Information Note) The following characteristics are the reference value for design and not guaranteed value. The timing chart is for explaining the IC operation plainly. Those vary depending on input condition. 1. Timing chart 1 • When NTSC reception (in horizontal and vertical synchronization) antenna is selected. ...

Page 5

... ANT-2 output (pin 15) ANT-3 output (pin 14) ANT-4 output (pin 13) Selected antenna Output for N.C. (pin 6) The antenna selection sequence is as follows 10.667 µs (Electric field judgment level) ANT-1 ANT-2 ANT-3 SDB00011CEB AN5290S 5.333 µs ANT 21.333 µs ANT-4 5 ...

Page 6

... AN5290S ■ Application Circuit Example 1 µF 75 Ω 10 µF 1st noise 2nd noise amp. amp. ANT choice Sync. control Sync. sepa. Horizontal 51 kΩ The circuit shows an example of application circuit and circuit constant but does not guarantee the design of mass- production set. ...

Page 7

Request for your special attention and precautions in using the technical information and (1) If any of the products or technical information described in this book exported or provided to non-residents, the laws and regulations of the ...

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