TDA7850 Datasheet, PDF (8/18 Pages) STMicroelectronics – 4 x 50 W MOSFET quad bridge power amplifier plus HSD

Electrical specifications
TDA7850
3.3
Electrical characteristics
Table 4.
Symbol
Electrical characteristics
(Refer to the test and application diagram, V_S = 14.4V; R_L = 4Ω; R_g = 600Ω; f = 1KHz;
T_amb = 25°C; unless otherwise specified).
Parameter
Test Condition
Min. Typ. Max. Unit
I_q1
V_OS
dV_OS
G_v
dG_v
Quiescent current
Output offset voltage
During mute ON/OFF output
offset voltage
During St-By ON/OFF output
offset voltage
Voltage gain
Channel gain unbalance
P_o Output power
P_{o max.} Max. output power⁽¹⁾
THD Distortion
e_No Output noise
SVR
f_ch
R_i
Supply voltage rejection
High cut-off frequency
Input impedance
C_T Cross talk
I_SB St-By current consumption
I_pin5
V_{SB out}
V_{SB in}
A_M
V_{M out}
V_{M in}
St-by pin current
St-By out threshold voltage
St-By in threshold voltage
Mute attenuation
Mute out threshold voltage
Mute in threshold voltage
R_L = ∞
Play mode / Mute mode
ITU R-ARM weighted
see Figure 20
V_S = 13.2V; THD = 10%
V_S = 13.2V; THD = 1%
V_S = 14.4V; THD = 10%
V_S = 14.4V; THD = 1%
V_S = 14.4V; THD = 10%, 2Ω
V_S = 14.4V; R_L = 4Ω
V_S = 14.4V; R_L = 2Ω
P_o = 4W
P_o = 15W; R_L = 2Ω
"A" Weighted
Bw = 20Hz to 20KHz
f = 100Hz; V_r = 1Vrms
P_O = 0.5W
f = 1KHz P_O = 4W
f = 10KHz P_O = 4W
V_St-By = 1.5V
V_St-By = 0V
V_St-By = 1.5V to 3.5V
(Amp: ON)
(Amp: OFF)
P_Oref = 4W
(Amp: Play)
(Amp: Mute)
100 180 280 mA
±60 mV
-10
+10 mV
-10
+10 mV
25
26
27
dB
±1
dB
23
25
16
19
W
28
30
20
23
50
55
W
50
W
85
0.006 0.05
%
0.015 0.07
35
50
μV
50
70
50
75
dB
100 300
KHz
80 100 120 KΩ
60
70
-
dB
60
-
20
μA
10
±1
μA
2.75
V
1.5
V
80
90
dB
3.5
V
1.5
V
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