TDA7285 Просмотр технического описания (PDF) - STMicroelectronics
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TDA7285 Datasheet PDF : 11 Pages
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TDA7285
ELECTRICAL CHARACTERISTICS (VS = 3V; RL = 32Ω, Vol. Control = 2/3 Vref (pin 20); Tamb = 25°C; f =
1KHz; unless otherwise specified
Symbol
Parameter
VS
Supply Range
Id
Total Quiescent Drain Current
PLAYBACK AMPLIFIER
Test Condition
Min. Typ. Max. Unit
1.8
6
V
15
22
mA
Gvo
Gv
VO
THD
Ib
Ct
en
SVR1
Open Loop Gain
Close Loop Gain
Output Voltage
Total Harmonic Distortion
Bias Current
Cross Talk
Total Input Noise
Ripple Rejection
HEADPHONE DRIVER
70
dB
33
dB
THD = 1%
600 750
mV
VO = 330mVrms
0.05 0.25
%
3
µA
RS = 2.2KΩ; VO = 330mVrms
74
dB
RS = 2.2KΩ; B = 22Hz to 22KHz
1.2
µV
RS = 2.2KΩ; Vr = 100mVrms
f = 100Hz; CSVR = 100µF
50
dB
VDC
PO
PO1
GV
THD
Ct
SVR2
Output DC Voltage
Output Power
Transient Output Power
Close Loop Gain
Volume Control range
Total Harmonic Distortion
Cross Talk
Ripple Rejection
MOTOR SPEED CONTROL
THD = 10%
THD = 10% RL = 16Ω
PO = 5mW
PO = 5mW
PO = 5mW; RS = 10KΩ
RS = 600Ω; Vr = 100mV
f = 100Hz; CSVR = 100µF
1.4
20
30
50
31
66
75
0.3
50
47
V
mW
mW
dB
dB
1
%
dB
dB
Vref
Motor Reference Voltage (pin 12)
K
Shunt Ratio
Vsat
Residual Voltage
∆ Vref
Vref
⁄
∆ VS
Line Regulation
∆K
K
⁄
∆
VS
Voltage Characteristics of Shunt
Ratio
∆ Vref
∆VrKef
K
⁄
⁄ ∆ Im
∆ Im
Load Regulation
Current Characteristics of Shunt
Ratio
∆ Vref ⁄
Vref
∆ Tamb
Temperature Characteristics of
Reference Voltage
∆K
K
⁄
∆ Tamb
Temperature Characteristics of
Shunt Ratio
Im = 100mA
Im = 100mA
Im = 100mA;
VS = 1.8 to 6V
Im = 100mA;
VS = 1.8 to 6V
Im = 30 to 200mA
Im = 30 to 200mA
Im = 100mA
Tamb = -20 to +60°C
Im = 100mA
Tamb = -20 to +60°C
0.18 0.20 0.22
V
45
50
55
-
0.13 0.30
V
0.20 0.8 %/V
0.80
3
%/V
0.015 0.08 %/mA
0.03 0.1 %/mA
0.04
%/°C
0.02
%/°C
3/11
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