參數(shù)資料
型號(hào)： LC78626E
廠商： Sanyo Electric Co.,Ltd.
元件分類： 數(shù)字信號(hào)處理
英文描述： 16-bit fixed point DSP with Flash
中文描述： 具有閃存的 16 位定點(diǎn) DSP
文件頁(yè)數(shù)： 26/32頁(yè)
文件大?。?/td> 475K
代理商： LC78626E
22 The Reset Circuit
Pin 69: RES
When the power supply is turned on, first set this pin low and then set it to high. The muting is set to –
∞
dB and the
disk motor is set to stop.
When the RES pin is low, then the statuses found in the boxes above are set directly.
23 Other Pins
Pin 2: TAI, Pin 16: TEST1, Pin 19: TEST2, Pin 38: TEST3, Pin 40: TEST4, Pin 14: TEST5
These are pins for testing the circuits within the IC. While TAI and TEST1 to TEST5 are equipped with internal pull-
down resistors, for safety reasons, they should be connected to 0 V.
24 Explanation of the Block Functions
(1) RAM Address Control
This IC contains 8 bits
×
2K words on on-board RAM, and, depending on the address control, the EFM modulation
data jitter absorption capability can have ± 4 frames as the buffer memory capacity. Moreover, normally this buffer
margin is checked, and by precisely controlling the CLV servo circuit PCK-side frequency ratio it is possible to
control the data write address so that it will be centered on the size of the buffer. Also, when the ± 4 frame buffer
capacity is exceeded, the write address can be forced to ± 0, and because the resulting errors cannot be subjected to
flag processing, the mute is applied for a 128 frame period.
No. 5692-26/32
LC78626E
CLV servo relationship
START
STOP
BRAKE
CLV
Muting control
0dB
–
∞
Subcode Q address parameter
Address1
Address Free
Track jump mode
Conventional
New
Track count mode
Conventional
New
Digital attenuator
DATA0
DATA 00H to EEH
OSC
ON
OFF
Playback speed
Normal speed
Double speed
Digital filter normal speed
ON
OFF
Position
Frequency Divider Ratio or Process
–4 or lower
Forces transition to ± 0
–3
589
–2
589
Forward frequency division
–1
589
±0
588
Standard frequency division
+1
587
+2
587
Backwards frequency division
+3
587
+4 or greater
Forces transition to ± 0
相關(guān)PDF資料
PDF描述
LC78628 16-bit fixed point DSP with Flash
LC78628E 16-bit fixed point DSP with Flash
LC78630 16-bit fixed point DSP with Flash
LC78630E 16-bit fixed point DSP with Flash
LC78631 16-bit fixed point DSP with Flash
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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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
LC7863 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:DIGITAL SIGNAL PROCESSOR FOR COMPACT DISC PLAYERS
LC78630 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disk Player DSP
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