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TDA8425V7 Datasheet, PDF (12/24 Pages) NXP Semiconductors – Hi-fi stereo audio processor; I2C-bus | |||
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Philips Semiconductors
Hi-ï¬ stereo audio processor; I2C-bus
Product speciï¬cation
TDA8425
PARAMETER
Total harmonic distortion
(f = 20 Hz to 12.5 kHz)
for Vi(rms) = 0.3 V;
gain = +6 dB to â40 dB
for Vi(rms) = 0.6 V;
gain = 0 dB to â40 dB
for Vi(rms) = 2.0 V;
gain = â12 dB to â40 dB
Channel separation at 10 kHz
gain = 0 dB
Ripple rejection (gain = 0 dB;
bass and treble in linear position)
fripple = 100 Hz
Crosstalk attenuation from logic
inputs to AF outputs (gain = 0 dB;
bass and treble in linear position)
VOLUME CONTROL
For truth table see Table 6
Control range at f = 1 kHz (36 steps)
maximum voltage gain (6 dB step)
minimum voltage gain (â64 dB step)
mute position
Gain tracking error; balance in mid-position
Step resolution
gain from 6 dB to â40 dB
gain from â42 dB to â64 dB
TREBLE CONTROL
For truth table see Table 8
Control range
for C8-5; C14-5 = 5.6 nF
Maximum emphasis at 15 kHz with
respect to linear position
Maximum attenuation at 15 kHz with
respect to linear position
Resolution
SYMBOL
MIN.
TYP.
MAX. UNIT
THD
THD
THD
αcs
RR100
αL
â
0.05
â
%
â
0.07
0.4
%
â
0.1
â
%
â
80
â
dB
â
50
â
dB
â
100
â
dB
Gmax
Gmin
Gmute
G
Gstep
Gstep
5
6
â
dB
â63
â64
â
dB
â80
â90
â
dB
â
â
2
dB
1.5
2.0
2.5
dB/step
1.0
2.0
3.0
dB/step
G
G
Gstep
11
12
13
dB
11
12
13
dB
2.5
3.0
3.5
dB/step
October 1988
12
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