TDA8931 Datasheet, PDF (21/31 Pages) NXP Semiconductors – Power comparator 1 X 20 W

Philips Semiconductors
TDA8931
Power comparator 1 × 20 W
14.5 Measured performance figures of mono amplifier with TDA8931
Table 13: Characteristics
V_P = 22 V; R_L = 4 Ω, f_i = 1 kHz; inverted input signal; T_amb = 25 °C unless otherwise specified.
Symbol Parameter
Conditions
Min Typ Max Unit
V_P
operating supply
voltage
[1] ₁₂
22
35
V
P_o
output power
V_P = 26 V; R_L = 4 Ω
THD+N = 10 %
-
22
-
W
THD+N = 1 %
-
20
-
W
V_P = 22 V; R_L = 4 Ω
THD+N = 10 %
-
16.0 -
W
THD+N = 1 %
-
12.0 -
W
V_P = 30 V; R_L = 8 Ω
THD+N = 10 %
-
16.0 -
W
THD+N = 1 %
-
12.0 -
W
THD+N total harmonic
P_o = 1 W;
distortion-plus-noise AES17 brick wall filter
η
G_v
V_n(o)
efficiency
closed loop gain
noise output voltage
V_p = 22 V; R_L = 4 Ω
V_p = 30 V; R_L = 8 Ω
P_o = 15 W
V_p = 22 V; R_L = 4 Ω
V_p = 30 V; R_L = 8 Ω
V_i = 100 mV (RMS);
f_i = 1 kHz
inputs shorted;
AES17 brick wall filter
-
0.02 -
%
-
0.02 -
%
-
89
-
%
-
91
-
%
-
20
-
dB
-
128 -
µV
S/N
signal-to-noise ratio unwanted; with respect
-
98
-
dB
to V_o = 10 V (RMS)
B
band width
−3 dB low; LF cut-off
-
40
-
Hz
point depends on value
of SE capacitances
−3 dB high
-
45000 -
Hz
SVRR supply voltage ripple V_p = 22 V; R_L = 4 Ω;
45
48
-
dB
rejection
V_ripple = 2 V (p-p);
f_ripple = 100 Hz with feed
forward network (470 kΩ
and 15 nF)
f_c
idle carrier frequency
-
290 -
kHz
[1] Operates down to UVP threshold level and operates up to OVP threshold level.
9397 750 13847
Preliminary data sheet
Rev. 01 — 14 January 2004
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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