參數(shù)資料
型號： TDA7850H
廠商： STMICROELECTRONICS
元件分類： 音頻／視頻放大
英文描述： 80 W, 4 CHANNEL, AUDIO AMPLIFIER, ZFM25
封裝： ROHS COMPLIANT, FLEXIWATT-25
文件頁數(shù)： 17/18頁
文件大?。?/td> 386K
代理商： TDA7850H
Electrical specifications
TDA7850
3.3
Electrical characteristics
Table 4.
Electrical characteristics
(Refer to the test and application diagram, VS = 14.4 V; RL = 4 Ω; Rg = 600 Ω; f = 1 kHz;
Tamb = 25 °C; unless otherwise specified).
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
Iq1
Quiescent current
RL = ∞
100
180
280
mA
VOS
Output offset voltage
Play mode / Mute mode
±50
mV
dVOS
During mute ON/OFF output
offset voltage
ITU R-ARM weighted
-10
+10
mV
During Standby ON/OFF output
offset voltage
-10
+10
mV
Gv
Voltage gain
25
26
27
dB
dGv
Channel gain unbalance
±1
dB
Po
Output power
VS = 13.2 V; THD = 10 %
VS = 13.2 V; THD = 1 %
VS = 14.4 V; THD = 10 %
VS = 14.4 V; THD = 1 %
23
16
28
20
25
19
30
23
W
VS = 14.4 V; THD = 10 %, 2 Ω
50
55
W
Po max.
Max. output power(1)
VS = 14.4 V; RL = 4 Ω
VS = 14.4 V; RL = 2 Ω
50
85
W
THD
Distortion
Po = 4W
Po = 15W; RL = 2Ω
0.006
0.015
0.02
0.03
%
eNo
Output noise
"A" Weighted
Bw = 20 Hz to 20 kHz
35
50
70
μV
SVR
Supply voltage rejection
f = 100 Hz; Vr = 1Vrms
50
75
dB
fch
High cut-off frequency
PO = 0.5 W
100
300
KHz
Ri
Input impedance
80
100
120
K
Ω
CT
Cross talk
f = 1 kHz PO = 4 W
f = 10 kHz PO = 4 W
60
70
60
-
dB
ISB
Standby current consumption
VST-BY = 1.5 V
20
μA
VST-BY = 0 V
10
Ipin5
ST-BY pin current
VST-BY = 1.5 V to 3.5 V
±1
μA
VSB out
Standby out threshold voltage
(Amp: ON)
2.75
V
VSB in
Standby in threshold voltage
(Amp: OFF)
1.5
V
AM
Mute attenuation
POref = 4 W
80
90
dB
VM out
Mute out threshold voltage
(Amp: Play)
3.5
V
VM in
Mute in threshold voltage
(Amp: Mute)
1.5
V
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