Electrical specifications
TDA7850
3.3
Electrical characteristics
Table 4.
Electrical characteristics
(Refer to the test and application diagram, V = 14.4V; R = 4Ω; R = 600Ω; f = 1KHz;
S
L
g
T
= 25°C; unless otherwise specified).
amb
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Iq1
Quiescent current
RL = ∞
100
180
280
60
mA
mV
VOS
Output offset voltage
Play mode / Mute mode
During mute ON/OFF output
offset voltage
-10
+10
+10
mV
mV
ITU R-ARM weighted
dVOS
see Figure 20
During St-By ON/OFF output
offset voltage
-10
25
Gv
Voltage gain
26
27
1
dB
dB
dGv
Channel gain unbalance
VS = 13.2V; THD = 10%
VS = 13.2V; THD = 1%
VS = 14.4V; THD = 10%
VS = 14.4V; THD = 1%
23
16
28
20
25
19
30
23
W
Po
Output power
VS = 14.4V; THD = 10%, 2Ω
50
55
W
W
VS = 14.4V; RL = 4Ω
VS = 14.4V; RL = 2Ω
50
85
Po max. Max. output power(1)
Po = 4W
0.006
0.015
0.05
0.07
THD
eNo
Distortion
%
Po = 15W; RL = 2Ω
"A" Weighted
35
50
50
70
Output noise
μV
Bw = 20Hz to 20KHz
SVR
fch
Supply voltage rejection
High cut-off frequency
Input impedance
f = 100Hz; Vr = 1Vrms
PO = 0.5W
50
100
80
75
dB
KHz
KΩ
300
100
Ri
120
f = 1KHz PO = 4W
f = 10KHz PO = 4W
60
70
60
-
-
CT
Cross talk
dB
VSt-By = 1.5V
VSt-By = 0V
20
10
1
ISB
St-By current consumption
St-by pin current
μA
Ipin5
VSt-By = 1.5V to 3.5V
(Amp: ON)
μA
V
VSB out St-By out threshold voltage
VSB in St-By in threshold voltage
2.75
(Amp: OFF)
POref = 4W
1.5
1.5
V
AM
VM out Mute out threshold voltage
VM in Mute in threshold voltage
Mute attenuation
80
90
dB
V
(Amp: Play)
(Amp: Mute)
3.5
V
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STMICROELECTRONICS [ ST ]
