TEF6901A_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 20 March 2008 90 of 107
NXP Semiconductors
TEF6901A
Integrated car radio
C
mute
soft mute slope FM mode; see Figure 28;
slope of soft mute attenuation
with respect to equivalent level
voltage; MST[2:0] = 000
MSLE = 0; MSL[1:0] = 00 - 8 - dB/V
MSLE = 0; MSL[1:0] = 01 - 16 - dB/V
MSLE = 0; MSL[1:0] = 10 - 24 - dB/V
MSLE = 0; MSL[1:0] = 11 - 32 - dB/V
MSLE = 1; MSL[1:0] = 00 - 40 - dB/V
MSLE = 1; MSL[1:0] = 01 - 48 - dB/V
AM mode; see
Figure 29;
slope of soft mute attenuation
with respect to equivalent level
voltage; MST[2:0] = 011
MSLE = 0; MSL[1:0] = 00 - 8 - dB/V
MSLE = 0; MSL[1:0] = 01 - 12 - dB/V
MSLE = 0; MSL[1:0] = 10 - 16 - dB/V
MSLE = 0; MSL[1:0] = 11 - 20 - dB/V
MSLE = 1; MSL[1:0] = 00 - 24 - dB/V
MSLE = 1; MSL[1:0] = 01 - 28 - dB/V
MSLE = 1; MSL[1:0] = 10 - 32 - dB/V
MSLE = 1; MSL[1:0] = 11 - 36 - dB/V
α
mute(max)
maximum soft mute
attenuation by USN
see Figure 30;
f
MPXAMOUT
= 150 kHz;
V
MPXAMOUT
= 0.6 V (RMS);
USS[1:0] = 11
UMD[1:0] = 00 - 3 - dB
UMD[1:0] = 01 - 6 - dB
UMD[1:0] = 10 - 9 - dB
UMD[1:0] = 11 - 12 - dB
V
start(SNC)
SNC stereo blend start
voltage
see Figure 25; equivalent level
voltage that causes channel
separation is 10 dB;
SSL[1:0] = 10
SST[3:0] = 0000 - 1.5 - V
:-:-V
SST[3:0] = 1000 - 2.0 - V
:-:-V
SST[3:0] = 1111 - 2.45 - V
Table 111. Dynamic characteristics of the sound processor
…continued
V
CC
= 8.5 V; T
amb
=25
°
C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; f
audio
= 1 kHz; G
vol
= 0 dB; G
fader
= 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); R
L
= 10 k
Ω
; C
L
= 1 nF; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
C
mute
α
mute
∆
V
eq.LEVEL
∆
---------------------------
=
