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CXP1021Q Arkusz danych(PDF) 10 Page - Sony Corporation

Numer części CXP1021Q
Szczegółowy opis  System Controller for Compact Disc Players
Download  28 Pages
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Producent  SONY [Sony Corporation]
Strona internetowa  http://www.sony.co.jp
Logo SONY - Sony Corporation

CXP1021Q Arkusz danych(HTML) 10 Page - Sony Corporation

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CXP1021Q
1. Deck mode/portable mode selection
A feature of the CXP1021Q is its ability to be used in both deck-type and in portable equipment.
(a) Selection
Selection is executed through Pin 39 (LOAD/DECK-PT). Mode selection is determined by the condition of
this pin immediately after reset of the CXP1021Q.
When Pin 39 (LOAD/DECK-PT) is high: Deck mode
When Pin 39 (LOAD/DECK-PT) is low: Portable/radio cassette mode
(b) Deck mode
• In deck mode the tray loading function is activated.
• Pins necessary for tray operation:
• The relation between Pin 40 (UNLOAD/Batt-W) and Pin 39 (LOAD/DECK-PT) is as follows.
(c) Portable mode
• In portable mode, when the lid is closed the operation changes to TOC reading.
• Pin 39 (LOAD/DECK-PT) should be held "L".
• Pin 37 (Disc IN) should be connected to a switch that makes the pin go "L" when the lid is closed.
• Two pins used in deck mode can be employed to detect a reduced battery voltage.
• When Pin 40 (UNLOAD/Batt-W) is made "L" through the reduced voltage detection circuit,
BATT
is
displayed.
• In addition, when Pin 40 (UNLOAD/Batt-W) is "L", forcing Pin 38 (Disc OUT/Batt-E) "L" induces the STOP
state.
For the loading motor
Pin 40 (UNLOAD/Batt-W)
goes "L" when tray is ejected
Pin 39 (LOAD/DECK PT)
goes "L" when tray is closed
Pin 37 (Disc IN) goes "L" when the
tray is closed
Pin 38 (Disc OUT/Batt-E) goes "L"
when tray is fully opened
For the tray SW
State
Open (stopped)
LOAD direction
UNLOAD direction
H
H
L
H
L
H
Pin 40/UNLOAD
Pin 39/LOAD
LOAD direction
UNLOAD direction
Tray


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