Datasheet

TEF6901A_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 20 March 2008 95 of 107
NXP Semiconductors
TEF6901A
Integrated car radio
Volume
G
vol
volume/balance gain
control
see Table 83
maximum setting
[3]
-20- dB
minimum setting
[3]
- −75 - dB
mute attenuation;
20 Hz to 20 kHz
- −90 −80 dB
G
step(vol)
step resolution - 1 - dB
|∆G
set
| gain set error G
vol
= +20 dB to −35 dB - 0.25 1 dB
G
vol
= −36 dB to −75 dB - 0.55 3 dB
∆G
step(vol)
gain step error - - 1 dB
|∆G
track
| gain tracking error
between left and right
G
vol
= +20 dB to −35 dB - 0.1 1 dB
G
vol
= −36 dB to −75 dB - 0.3 3 dB
Loudness; see
Table 100 and Figure 39
G
bass
loudness bass control
range
[4]
-20- dB
G
treble
loudness treble control
range
-4- dB
G
step
loudness step resolution - 2 - dB
Treble
f
treble
treble control filter
frequency
see Figure 37; −3dB
frequency of maximum treble
setting referenced to 100 kHz
TRF[1:0] = 00 - 8 - kHz
TRF[1:0] = 01 - 10 - kHz
TRF[1:0] = 10 - 12 - kHz
TRF[1:0] = 11 - 15 - kHz
G
treble
treble gain control TRE[2:0] = 111; TREM = 1 - 14 - dB
TRE[2:0] = 111; TREM = 0 - −14 - dB
G
step(treble)
step resolution gain - 2 - dB
∆G
step(treble)
treble step error - - 0.5 dB
Bass
f
bass
bass control filter
frequency at maximum
gain
see Figure 38
BAF[1:0] = 00 - 60 - Hz
BAF[1:0] = 01 - 80 - Hz
BAF[1:0] = 10 - 100 - Hz
BAF[1:0] = 11 - 120 - Hz
G
bass
bass gain control BAS[3:0] = 0111; BASM = 1 - 14 - dB
BAS[3:0] = 0111; BASM = 0 - −14 - dB
G
step(bass)
step resolution gain - 2 - dB
∆G
step(bass)
bass step error - - 0.5 dB
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