- 您現在的位置：買賣IC網 > PDF目錄30736 > LC78625E SPECIALTY CONSUMER CIRCUIT, PQFP80 PDF資料下載
參數資料
| 型號： | LC78625E |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數： | 19/35頁 |
| 文件大小： | 535K |
| 代理商： | LC78625E |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁
No. 5502-26/35
LC78625E
21. Digital output circuit; Pin 56: DOUT
This is an output pin for use with a digital audio interface. Data is output in the EIAJ format. This signal has been
processed by the interpolation and muting circuits. This pin has a built-in driver circuit and can directly drive a
transformer.
The DOUT pin can be locked at the low level by issuing a DOUT OFF command.
The UBIT information in the DOUT data can be locked at zero by issuing a UBIT OFF command.
The DOUT data can be switched to data for which interpolation and muting processing have not been performed by
issuing a CD-ROM XA command.
22. Antishock mode; Pin 38: ASDACK, pin 39: ASDFIN, pin 40: ASDEPC, pin 41: ADLRCK, pin 42: LRSY, pin 43:
CK2, pin 44: ROMXA, pin 45: C2F
Antishock mode is a mode in which antishock processing is applied to data that has been output once. That data can
be returned and output once again as an audio playback signal. It is also possible to use only the audio playback
block (the attenuator, 8x oversampling digital filter, and one-bit D/A converter circuits) and thus share the audio
playback block with other systems by synchronizing the other system with this LSI's clock.
Note that de-emphasis on/off switching is controlled by the level applied to the ASDEPC pin. De-emphasis is
turned on by a high level.
The ASDACK (pin 38), ASDFIN (pin 39), ASDEPC (pin 40), and ASLRCK (pin 41) pins can be used as general-
purpose ports (see page 23) if this mode is not used.
It is possible to input the signals from the ROMXA (pin 44), C2F (pin 45), LRSY (pin 42), and CK2 (pin 43) pins
to an antishock LSI (the Sanyo LC89151) and re-input the signals output by the antishock LSI to the ASDFIN (pin
39), ASLRCK (pin 41), and ASDACK (pin 38) pins. These signals are then processed by the attenuator, 8x
oversampling digital filter, and one-bit D/A converter circuits and output as audio signals.
In antishock systems, the signal-processing block must operate in double-speed playback mode for data output to
the antishock LSI, and the audio playback block (the attenuator, 8x oversampling digital filter, and one-bit D/A
converter circuits) must operate at normal speed. This means that the control microprocessor must issue both the
ANTIC on command ($6C) as well as the DF normal speed on command ($6F).
The ANTIC off command ($6B) clears antishock mode.
Code
COMMAND
RES = L
$42
DOUT ON
●
$43
DOUT
OFF
$40
UBIT ON
●
$41
UBIT OFF
Code
COMMAND
RES = L
$6C
ANTIC ON
$6B
ANTIC
OFF
●
$6F
DF normal speed on (only in antishock mode)
$6E
DF normal speed off (only in antishock mode)
●
相關PDF資料 |
PDF描述 |
|---|---|
| LC78630E | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| LC78631E | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| LC78637E | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| LC78647NT | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| LC78648E | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LC78626 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:DSP for Compact Disk Players |
| LC78626E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:DSP for Compact Disk Players |
| LC78626KE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CD-Player Processor/Controller |
| LC78628 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP with Built-in HDCD Decoder |
| LC78628E | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP with Built-in HDCD Decoder |
發(fā)布緊急采購，3分鐘左右您將得到回復。