TEF6890H-V2 NXP Semiconductors, TEF6890H-V2 Datasheet - Page 35

• Manufacturer Part Number: TEF6890H-V2
• Description: Car Radio Integrated Signal Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
11.2.8
Table 35 Format of data byte AH with default setting
Table 36 Description of data byte AH
2003 Oct 21
Car radio integrated signal processor
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.
4 and 3
1 and 0
BIT 7
BIT
AM
0
7
6
5
2
S
UBADDRESS
SYMBOL
NBS[1:0]
ING[1:0]
MONO
MONO
DEMP
SEAR
BIT 6
AM
0
AH; RADIO
AM selection. 0 = FM mode selected; 1 = AM mode selected.
Stereo decoder mono. 0 = set to FM stereo; 1 = set to FM mono.
De-emphasis time constant. 0 = 75 s; 1 = 50 s; see Fig.15.
Input gain. See Table 37.
LEVEL and MPH detector time constant. 0 = standard time constant selected;
1 = fast time constant of 60 ms selected.
AM noise blanker and the FM noise blanker MPX sensitivity. See Table 38.
Fig.14 Soft mute depth
handbook, halfpage
DEMP
BIT 5
(dB)
mute
1
12
18
24
0
6
0.25
(1)
(2)
(3)
(4)
0.5
BIT 4
ING1
0
0.75
mute
a
35
caused by ultrasonic noise.
1
BIT 3
ING0
0
DESCRIPTION
1.25
b
V eq (V)
MHC341
1.5
SEAR
BIT 2
1
NBS1
BIT 1
1
Product specification
TEF6890H
NBS0
BIT 0
0