參數(shù)資料
型號(hào)： SAA7324
廠商： NXP Semiconductors N.V.
英文描述： Digital servo processor and Compact Disc decoder with integrated DAC (CD10 II)(具有綜合數(shù)模轉(zhuǎn)換器（DAC）的數(shù)字伺服處理器和光盤(pán)譯碼器)
中文描述： 數(shù)字伺服處理器和光盤(pán)解碼器集成了援會(huì)（CD10型二）（具有綜合數(shù)模轉(zhuǎn)換器（DAC）的的數(shù)字伺服處理器和光盤(pán)譯碼器）
文件頁(yè)數(shù)： 16/68頁(yè)
文件大小： 285K
代理商： SAA7324
2000 Jun 26
16
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc
decoder with integrated DAC (CD10 II)
SAA7324
7.7.4
M
UTE
,
FULL
-
SCALE
,
ATTENUATION AND FADE
A digital level controller is present on the SAA7324 which
performs the functions of soft mute, full-scale, attenuation
and fade; these are selected via decoder register 0:
Mute: signal reduced to 0 in a maximum of 128 steps;
(3/n) ms
Attenuation: signal scaled by
12 dB
Full-scale: ramp signal back to 0 dB level; from mute
takes (3/n) ms
Fade: activates a 128 stage counter which allows the
signal to be scaled up/down by 0.07 dB steps
– 128 = full-scale
– 120 =
0.5 dB (i.e. full-scale if oversampling filter
used)
– 32 =
12 dB
– 0 = mute.
7.7.5
P
EAK DETECTOR
The peak detector measures the highest audio level
(absolute value) on positive peaks for left and right
channels. The 8 most significant bits are output in the
Q-channel data in place of the CRC bits. Bits 81 to 88
contain the left peak value (bit 88 = MSB) and
bits 89 to 96 contain the right peak value (bit 96 = MSB).
The values are reset after reading Q-channel data via pin
SDA.
Interpolation
Hold
Interpolation
MGA372
OK
Error
OK
Error
Error
Error
OK
OK
Fig.11 Concealment mechanism.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7324H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital servo processor and Compact Disc decoder with integrated DAC CD10 II
SAA7324H/M2B,557 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 COMPACT DISC SYSTEMS RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SAA7324HBG 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 COMPACT DISC SYSTEMS RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SAA7325 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital servo processor and Compact Disc decoder with integrated DAC CD10
SAA7325H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital servo processor and Compact Disc decoder with integrated DAC CD10
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