參數(shù)資料
型號： SAA7826
廠商： NXP Semiconductors N.V.
英文描述： CD audio decoder, digital servo and filterless DAC with integrated pre-amp and laser control
中文描述： CD音頻解碼器，數(shù)字伺服和濾波器DAC，具有集成前置放大器和激光控制
文件頁數(shù)： 43/89頁
文件大?。?/td> 379K
代理商： SAA7826
2003 Oct 01
43
Philips Semiconductors
Product specification
CD audio decoder, digital servo and filterless
DAC with integrated pre-amp and laser control
SAA7826
handbook, full pagewidth
DATA1
DATA2
DATA3
COMMAND
SILD
(microcontroller)
SCL
(microcontroller)
SDA
(microcontroller)
SD
(SAA782X)
SD
(SAA782X)
D7
D6
D5
D4
D3
D2
D1
D0
data byte
microcontroller read (one data byte)
microcontroller read (full command)
MBL450
Fig.33 Microcontroller protocol for read servo commands.
7.17.3
D
ECODER AND SHADOW REGISTERS
To maintain compatibility with the SAA732x series,
decoder registers 0 to F and the shadow registers are
largely unchanged. However, to control the extra
functionality of SAA7826, the shadow registers have been
extended to include new shadow registers.
All shadow registers are accessed by using the two LSBs
(bits 0 and 1) of decoder register F. These bits are called
SHADEN1 and SHADEN2 respectively. These bits are
decoded according to Table 15.
This two bit encoding allows the use of three shadow
register banks; bank 1 (SAA732X shadow registers), and
banks 2 and 3 (new shadow registers). Only the four
addresses 3, 7, A and C are implemented in any one
bank.Anyotheraddresses sentwhile accessinganyofthe
shadow register banks are invalid and have no effect.
When SHADEN1 and SHADEN2 are both set to logic 0
(decoder register F set to XX00) all subsequent addresses
are decoded by the main decoder registers again.
Access to decoder register F is always enabled so that
SHADEN1 and SHADEN2 can be set or reset as required.
The SHADEN bits and subsequent shadow registers are
programmed identically to the main decoder registers,
i.e. they can be directly programmed when using the
SAA7826 in 4-wire mode or programmed via the servo
interface when using 3-wire or I
2
C-bus modes. The main
decoder registers are given in Table 16 and the shadow
registers in Table 18. Details of the new shadow registers
can be found in Tables 19 to 22.
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相關代理商/技術參數(shù)
參數(shù)描述
SAA7826HL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:CD audio decoder, digital servo and filterless DAC with integrated pre-amp and laser control
SAA7826HL/E/M1A 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC PHONIC AUTO RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
SAA7826HL/E/M1A,55 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC PHONIC AUTO RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
SAA7826HL/M1A 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC PHONIC AUTO RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
SAA7826HL/M1A,557 功能描述:音頻數(shù)/模轉(zhuǎn)換器 IC PHONIC AUTO RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量: 分辨率:16 bit 接口類型:I2S, UBS 轉(zhuǎn)換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數(shù)量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel
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