TDA7273 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7273' PDF : 9 Pages View PDF
PIN CONNECTION (Top view)
TDA7273
ELECTRICAL CHARACTERISTICS (Tamb = 25°C, VS = 3V, f = 1KHz, RL = 32Ω Vol. control = 2/3Vref
unless otherwise specified)
Symbol
Parameter
VS
Supply Voltage
Id
Quiescent Current
Vref
Reference Voltage
PREAMPLIFIER SECTION
Test Condition
Min. Typ. Max. Unit
1.8
7
V
14
20
mA
1.3 1.49 1.7
V
GVO
GV
Vo
Ib
THD
Ct
EN
SVR
Open Loop Gain
Close Loop Gain
Output Voltage
Bias Current
Total Harmonic Distortion
Cross Talk
Output Noise
Ripple Rejection
HEADPHONE DRIVER
70
dB
30
33
35
dB
THD = 1%
600 850
mV
3
µA
Vo = 330mVrms
0.05 0.25
%
Rg = 2.2KΩ; Vo = 330mVrms
74
dB
Rg = 2.2KΩ; BW = 22Hz to 22KHz
100
µV
Rg = 2.2KΩ VR = 100mVrms
40
50
dB
f = 100Hz; CSVR = 100µF
Vo(DC)
Po
Po
GV
THD
Ct
SVR
DC Output Voltage
Output Power
Transient Output Power
Close Loop Gain
Total Harmonic Distortion
Cross Talk
Ripple Rejection
Volume Control Range
THD = 10%;
THD = 10% RL = 16Ω
Po = 5mW
Po = 5mW
Rg = 10KΩ; Po = 5mW
Vr = 100mVrms, f = 100Hz
Vol. control = 1/3Vref
CSVR = 100µF; Rg =600Ω
1.50
V
15
30
mW
50
mW
28
31
34
dB
0.2
1
%
40
50
dB
47
dB
66
75
dB
3/9
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