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TEF6890H データシート(Datasheet) 35 Page - NXP Semiconductors

部品番号. TEF6890H
部品情報  Car radio integrated signal processor
ダウンロード  55 Pages
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メーカー  PHILIPS [NXP Semiconductors]
ホームページ  http://www.nxp.com
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 35 page
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2003 Oct 21
35
Philips Semiconductors
Product specification
Car radio integrated signal processor
TEF6890H
handbook, halfpage
0.25
0.5
1.5
Veq (V)
0
6
18
24
12
0.75
1
α
mute
(dB)
1.25
MHC341
(1)
ab
(2)
(3)
(4)
Fig.14 Soft mute depth
αmute caused by ultrasonic noise.
a: MST[2:0] = 000, MSL[1:0] = 11
b: MST[2:0] = 100, MSL[1:0] = 01
(1) UMD[1:0] = 00 = 3 dB.
(2) UMD[1:0] = 01 = 6 dB.
(3) UMD[1:0] = 10 = 9 dB.
(4) UMD[1:0] = 11 = 12 dB.
11.2.8
SUBADDRESS AH; RADIO
Table 35 Format of data byte AH with default setting
Table 36 Description of data byte AH
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
AM
MONO
DEMP
ING1
ING0
SEAR
NBS1
NBS0
00100110
BIT
SYMBOL
DESCRIPTION
7AM
AM selection. 0 = FM mode selected; 1 = AM mode selected.
6
MONO
Stereo decoder mono. 0 = set to FM stereo; 1 = set to FM mono.
5
DEMP
De-emphasis time constant. 0 = 75
µs; 1 = 50 µs; see Fig.15.
4 and 3
ING[1:0]
Input gain. See Table 37.
2
SEAR
LEVEL and MPH detector time constant. 0 = standard time constant selected;
1 = fast time constant of 60 ms selected.
1 and 0
NBS[1:0]
AM noise blanker and the FM noise blanker MPX sensitivity. See Table 38.




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