2003 Oct 21 37
Philips Semiconductors Product specification
Car radio integrated signal processor TEF6890H
11.2.9 SUBADDRESS BH; INPUT AND ASI
Table 39 Format of data byte BH with default setting
Table 40 Description of data byte BH
Table 41 FM noise blanker level sensitivity
Table 42 Audio input tone/volume part
Table 43 Audio step interpolation time constant
11.2.10 S
UBADDRESS CH; LOUDNESS
Table 44 Format of data byte CH with default setting
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
NBL1 NBL0 INP1 INP0 MUTE ASI AST1 AST0
10001100
BIT SYMBOL DESCRIPTION
7 and 6 NBL[1:0] FM noise blanker level sensitivity. See Table 41.
5 and 4 INP[1:0] Audio input tone/volume part. See Table 42.
3 MUTE Audio mute. 0 = no mute; 1 = mute.
2 ASI Audio step interpolation. 0 = disable; 1 = enable.
1 and 0 AST[1:0] Audio step interpolation time constant. ASI time is 0 s when ASI = 0; see Table 43.
NBL1 NBL0 SENSITIVITY OF FM NOISE BLANKER AT LEVEL INPUT (mV)
00 9
01 18
10 28
1 1 reserved
INP1 INP0 AUDIO INPUT FOR TONE/VOLUME PART
0 0 radio
01 CD
1 0 tape
1 1 phone
AST1 AST0 ASI TIME (ms)
00 1
01 3
10 10
11 30
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
− LDN4 LDN3 LDN2 LDN1 LDN0 LLF LHB
− 0000011
