參數(shù)資料
型號(hào)： TDA9615
廠商： NXP Semiconductors N.V.
英文描述： DIODE,TVS,BI,20V,1500W,J-LEAD
中文描述： 音頻處理器錄影帶高保真
文件頁(yè)數(shù)： 21/44頁(yè)
文件大?。?/td> 263K
代理商： TDA9615
1997 Jun 16
21
Philips Semiconductors
Preliminary specification
Audio processor for VHS hi-fi
TDA9615H
Table 30
Bit PORR; note 1
Notes
1.
Bit POR of the read byte can be used to detect the occurrence of a power-on reset situation (bit POR reads logic 1
in case the I
2
C register contents equal the POR default state). When applying bit POR this way, PORR should be
used after a power-on reset to force a reset of the POR read bit state to logic 0.
POR.
2.
Read byte (device state information)
Table 31
Bits of read byte
Table 32
Bit CALR; notes 1 and 2
Notes
1.
Bit CALR = 0 indicates the device is not calibrated. After an automatic calibration is started by setting bit CALS of the
power byte the end of calibration is signalled by this bit. If for some reason a calibration cannot be completed (e.g.
no HID signal available or hi-fi processing is in ‘playback’ mode) CALR remains logic ‘0’. If calibration is lost due to
a power-on reset situation CALR will return to logic 0 as well.
Also the envelope output (pin 39) can be used to check for end of calibration.
2.
Table 33
Bit AUTN; notes 1 and 2
Notes
1.
When hi-fi processing is in ‘playback’ mode but no hi-fi carrier input signal is detected the auto-normal function is
activated. Auto-normal overrules the ‘Output Select’ mode setting, selecting normal sound (i.e. linear audio) instead
of hi-fi. The state of this auto-normal function can be checked via bit AUTN.
The auto-normal function is only active (bit AUTN = logic 1) for hi-fi ‘playback’ mode (bit AFM = 0); during ‘record’ or
‘loop-through’ mode bit AUTN is always logic 0.
2.
PORR
MODE
DESCRIPTION
0
1
(note 2)
POR reset
reset of POR signal bit
BIT
DESCRIPTION
CALR
AUTN
POR
calibration ready; see Table 32
auto-normal; see Table 33
power-on reset; see Table 34
CALR
DESCRIPTION
0
1
device is not calibrated
device has completed auto-calibration
AUTN
DESCRIPTION
0
1
audio FM signal is detected at FM input
no audio FM signal detected; normal sound is selected instead of hi-fi
相關(guān)PDF資料
PDF描述
TDA9615H Audio processor for VHS hi-fi(應(yīng)用于VHS高保真的音頻處理器)
TDA9811 Multistandard VIF-PLL with QSS-IFand AM demodulator(帶QSS-IF和AM解調(diào)器的多標(biāo)準(zhǔn)的VIF-PLL)
TDA9812 Multistandard VIF-PLL andFM-PLL/AM demodulator(多標(biāo)準(zhǔn)的VIF-PLL 和FM-PLL/AM解調(diào)器)
TDA9812T Multistandard VIF-PLL and FM-PLL/AM demodulator
TDA9813T VIF-PLL with QSS-IF and dual FM-PLL demodulator(帶QSS-IF和雙路FM-PLL解調(diào)器的VIF-PLL)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA9615H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Audio processor for VHS hi-fi
TDA9725 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Y/C automatic adjustment processor VHS standard
TDA9800 制造商:NXP Semiconductors 功能描述:Video/TV Circuit, TV Video Receiver Circuit, 20 Pin, Plastic, DIP
TDA9800T 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:VIF-PLL demodulator and FM-PLL detector
TDA9801 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single standard VIF-PLL demodulator and FM-PLL detector
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