TDA8421 Datasheet, PDF (13/26 Pages) NXP Semiconductors – Hi-fi stereo audio processor; I2C bus

Philips Semiconductors
Hi-fi stereo audio processor; I²C bus
Product specification
TDA8421
PARAMETER
LOUDSPEAKER CHANNEL OUTPUTS
CH1 LEFT (pin 18); CH1 RIGHT (pin 11)
Output voltage range (r.m.s. value)
at THD ≤ 0,5%
Load resistance
Output impedance
Noise level
weighted according to CCIR468-2
gain = 16 dB
gain = 0 dB
gain = ≤ −90 dB
Total harmonic distortion
(f = 20 Hz to 12,5 kHz)
for V_i(rms) = 0,5 V;
gain = + 16 dB to −30 dB
for V_i(rms) = 1,0 V;
gain = +2 dB to −30 dB
for V_i(rms) = 2,0 V;
gain = −4 dB to −30 dB
Channel separation at 10 kHz
gain = 0 dB
Ripple rejection (gain = 0 dB;
bass and treble in linear position)
f_ripple = 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 8
SYMBOL
MIN.
TYP.
MAX.
UNIT
V_o(rms)
R_L
Z_O
V_n
V_n
V_n
THD
THD
THD
α_cr
RR₁₀₀
α_L
2
−
−
V
10
−
−
kΩ
−
−
100
Ω
−
90
−
µV
−
20
40
µV
−
15
−
µV
−
0,05
0,2
%
−
0,07
0,2
%
−
0,1
−
%
−
75
−
dB
−
50
−
dB
−
110
−
dB
May 1988
13