2003 Oct 21 42
Philips Semiconductors Product specification
Car radio integrated signal processor TEF6894H
Table 52 Treble frequency
TRF1 TRF0 TREBLE FREQUENCY (kHz)
00 8
01 10
10 12
11 15
Fig.20 Treble gain G
treble
as a function of audio frequency f
audio
, f
treble
= 10 kHz.
handbook, full pagewidth
0
5
10
15
20
−20
−5
−10
−15
MHC347
10
f
audio
(Hz)
G
treble
(dB)
10
2
10
3
10
4
10
5
11.2.13 SUBADDRESS FH; BASS
Table 53 Format of data byte FH with default setting
Table 54 Description of data byte FH, see Figs 21 and 22
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
− BAS2 BAS1 BAS0 BASM BAF1 BAF0 BASH
− 0001100
BIT SYMBOL DESCRIPTION
7 − Not used. Set to logic 0.
6 to 4 BAS[2:0] Bass gain. See Table 55.
3 BASM Bass attenuation or gain. 0 = attenuation; 1 = gain; see Table 55.
2 and 1 BAF[1:0] Bass frequency. See Table 56.
0 BASH Bass frequency response. 0 = band-pass; 1 = shelve curve (only guaranteed for
BASM = 0).
