TDA8596_15 Datasheet, PDF (32/48 Pages) NXP Semiconductors – I2C-bus controlled 4 ´ 45 W power amplifier with symmetrical inputs

NXP Semiconductors
TDA8596
I²C-bus controlled 4 × 45 W power amplifier with symmetrical inputs
Table 17. Characteristics …continued
Refer to test circuit (see Figure 29) at V_P = 14.4 V; R_L = 4 Ω; f = 1 kHz; R_S = 0 Ω; normal mode; unless otherwise specified.
Tested at T_amb = 25 °C; guaranteed for T_amb = −40 °C to +105 °C.
Symbol
Parameter
Conditions
Min
Typ
Max Unit
∆T_{j(pw-G(−0.5dB))} prewarning to 0.5 dB
gain reduction
junction temperature
difference
7
10
13
°C
∆T_{j(G(−0.5dB)-of)}
junction temperature
difference between
0.5 dB gain reduction
and off
10
15
20
°C
∆G_{(th_fold)}
gain reduction of
thermal foldback
-
20
-
dB
Z_th(load)
load detection
I²C-bus mode
threshold impedance _{normal load detection}
-
-
20
Ω
line driver load detection
100
-
800
Ω
Z_th(open)
open load detection I²C-bus mode
threshold impedance
5000 -
-
Ω
I_{th(o)det(load)AC}
AC load detection
output threshold
current
I²C-bus mode
AC load bit is set
AC load bit is not set
460
-
-
-
-
mA
230
mA
Amplifier
P_o
THD
output power
total harmonic
distortion
R_L = 4 Ω; V_P = 14.4 V; THD = 0.5 %
R_L = 4 Ω; V_P = 14.4 V; THD = 10 %
R_L = 4 Ω; V_P = 14.4 V; maximum power;
V_i = 2 V (RMS) square wave
R_L = 4 Ω; V_P = 15.2 V; maximum power;
V_i = 2 V (RMS) square wave
R_L = 2 Ω; V_P = 14.4 V; THD = 0.5 %
R_L = 2 Ω; V_P = 14.4 V; THD = 10 %
R_L = 2 Ω; V_P = 14.4 V; maximum power;
V_i = 2 V (RMS) square wave
P_o = 1 W to 12 W; f = 1 kHz; R_L = 4 Ω
P_o = 1 W to 12 W; f = 10 kHz
P_o = 1 W to 12 W; f = 20 kHz
line driver mode; V_o = 1 V (RMS) and
5 V (RMS); f = 20 Hz to 20 kHz
18
20
-
W
23
25
-
W
37
40
-
W
41
45
-
W
29
32
-
W
37
41
-
W
58
64
-
W
-
0.01 0.1
%
-
0.09 0.3
%
-
0.14 0.4
%
-
0.02 0.05 %
α_cs
PSRR
channel separation f = 1 kHz; R_S = 1 kΩ
f = 10 kHz; R_S = 1 kΩ
power supply rejection f = 100 Hz to 10 kHz; R_S = 1 kΩ
ratio
65
80
-
dB
60
65
-
dB
55
70
-
dB
CMRR
V_cm(max)(rms)
common mode
rejection ratio
maximum common
mode voltage (RMS
value)
normal mode; V_cm = 0.3 V (p-p);
f = 1 kHz to 3 kHz; R_S = 1 kΩ
f = 1 kHz
45
65
-
dB
-
-
0.6
V
TDA8596_2
Product data sheet
Rev. 02 — 8 November 2007
© NXP B.V. 2007. All rights reserved.
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