TEF6901A_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 20 March 2008 22 of 107
NXP Semiconductors
TEF6901A
Integrated car radio
After power-on reset, all registers, including the reserved registers, should be initialized
with their default settings (see Table 22) using a preset mode tuning action (see Table 25).
The tuning mute circuit is muted. An action of the state machine is required to de-mute the
circuit, for this purpose preset mode (bits MODE[2:0] = 001) is best fitted since it assures
fast settling of all parameters before mute is released.
Table 22. Write mode subaddress overview
Subaddress Name Default Reference
00h BANDWIDTH 1111 1110
Section 8.2.2
01h PLLM 0000 1000
Section 8.2.3
02h PLLL 0111 1110
Section 8.2.3
03h DAA 0100 0000
Section 8.2.4
04h AGC 0000 0000
Section 8.2.5
05h BAND 0010 0000
Section 8.2.6
06h LEVELALGN 1000 0100
Section 8.2.8
07h IFCF 0010 0000
Section 8.2.9
08h IFCAP 0000 1000
Section 8.2.10
09h ACD 0100 1010
Section 8.2.11
0Ah SENSE 1000 0101
Section 8.2.12
0Bh TIMING 0110 0110
Section 8.2.13
0Ch SNC 0111 0100
Section 8.2.14
0Dh HIGHCUT 0110 1111
Section 8.2.15
0Eh SOFTMUTE 0110 1010
Section 8.2.16
0Fh RADIO 0001 1010
Section 8.2.17
10h INPUT 0000 1010
Section 8.2.18
11h VOLUME 0011 0000
Section 8.2.19
12h TREBLE 0000 1100
Section 8.2.20
13h BASS 0000 1100
Section 8.2.21
14h FADER 0000 0000
Section 8.2.22
15h OUTPUT 0000 1111
Section 8.2.23
16h BALANCE 1000 0000
Section 8.2.24
17h LOUDNESS 0000 1100
Section 8.2.25
18h POWER 0000 0110
Section 8.2.26
19h to 1Eh reserved 0000 0000
Section 8.2.27
1Fh TEST 0000 0000
Section 8.2.28
