參數(shù)資料
型號: AS1704-T
廠商: AUSTRIAMICROSYSTEMS AG
元件分類: 音頻/視頻放大
英文描述: 1.6W Single-Channel Audio Power Amplifiers
中文描述: 1.6 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO10
封裝: 3 X 3 MM, 0.80 MM HEIGHT, MSOP-10
文件頁數(shù): 4/13頁
文件大小: 187K
代理商: AS1704-T
www.austriamicrosystems.com
Revision 1.01
4 - 13
AS1702, AS1703, AS1704, AS1705
Data Sheet
austria
micro
systems
3V Operation
5.2 3V Operation
V
CC
= 3V, GND = 0V, SHDN = V
CC
, SHDM = GND, R
IN
= R
F
= 10k
(AS1702), T
AMB
= +25°C, C
BIAS
= 0.1μF, no load.
Typical values are at T
AMB
= +25°C (unless otherwise specified.) All specifications are 100% tested at T
AMB
= +25°C.
Specifications over temperature (T
AMB
= T
MIN
to T
MAX
) are guaranteed by design, not production tested.
Table 3. Electrical Characteristics – 3V Supply
Symbol
Parameter
Conditions
V
IN-
= V
IN+
= V
BIAS
;
T
AMB
= -40 to +85°C, per amplifier
SHDN = SHDM = GND per amplifier
Min
Typ
Max
Unit
I
CC
Supply Current
1
1. Quiescent power supply current is specified and tested with no load. Quiescent power supply current depends
on the offset voltage when a practical load is connected to the amplifier. Guaranteed by design.
2. Common-mode bias voltage is the voltage on BIAS and is nominally V
CC
/2.
3. Output power is specified by a combination of a functional output current test and characterization analysis.
4. Measurement bandwidth for THD+N is 22Hz to 22kHz.
5. Peak voltage measured at power-on, power-off, into or out of SHDN. Bandwidth defined by A-weighted filters,
inputs at AC GND. V
CC
rise and fall times
1ms.
7.5
mA
I
SHDN
V
IH
V
IL
Shutdown Supply
0.05
1
μA
SHDN
,
SHDM
Threshold
0.7 x V
CC
V
0.3 x V
CC
V
BIAS
Common-Mode
Bias Voltage
2
V
CC
/2 - 5% V
CC
/2 V
CC
/2 + 5%
V
V
OS
Output Offset
Voltage
V
IN-
= V
IN+
= V
BIAS
A
V
= 0dB (AS1703)
A
V
= 3dB (AS1704)
A
V
= 6dB (AS1705)
A
V
= 0dB (AS1703)
A
V
= 3dB (AS1704)
A
V
= 6dB (AS1705)
±1
±1
±1
±10
±15
±20
mV
V
IC
Common-Mode
Input Voltage
Inferred from CMRR
Test
0.5
0.5
0.5
0.5
10
-50
V
CC
- 0.7
V
CC
- 0.8
V
CC
- 1.0
V
CC
- 1.2
20
mV
External gain AS1702
AS1703, AS1704, AS1705
R
IN
Input Impedance
15
-60
-64
-79
k
CMRR
Common-Mode
Rejection Ration
dB
f
N
= 1kHz
PSRR
Power Supply
Rejection Ratio
V
IN-
= V
IN+
= V
BIAS
;
V
RIPPLE
= 200mVp-p;
R
L
= 8
;
C
BIAS
= 1μF
R
L
= 4
,
THD+N = 1%; f
IN
= 1kHz
R
L
= 8
,
THD+N = 1%; f
IN
= 1kHz
R
L
= 4
, f
IN
= 1kHz, P
OUT
= 460mW, A
V
= 6dB
f = 217Hz
dB
f = 1kHz
-73
P
OUT
Output Power
3
590
430
0.06
mW
THD+N
Total Harmonic
Distortion plus
Noise
4
Gain Accuracy
Thermal Shutdown
Threshold
Thermal Shutdown
Hysteresis
Maximum
Capacitive Drive
Power-up/Enable
from
Shutdown Time
Shutdown Time
Turn-Off Transient
5
%
R
L
= 8
, f
IN
= 1kHz, P
OUT
= 330mW, A
V
= 6dB
0.04
AS1703, AS1704, AS1705
±1
±2
%
+145
°C
9
°C
C
LOAD
Bridge-tied capacitance
500
pF
t
PU
125
ms
t
SHDN
3.5
μs
V
POP
50
mV
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