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參數(shù)資料
| 型號： | MAX9718A |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Cost, Mono/Stereo,1.4W Differential Audio Power Amplifiers |
| 中文描述： | 低成本，單聲道/立體聲，以1.4W差分音頻功率放大器 |
| 文件頁數(shù)： | 3/23頁 |
| 文件大?。?/td> | 569K |
| 代理商： | MAX9718A |
M
Low-Cost, Mono/Stereo,
1.4W Differential Audio Power Amplifiers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS
—
5V Supply (continued)
(V
CC
= 5V, GND = 0, SHDN/
SHDN
= V
CC
(MAX9718/MAX9719), SHDM = GND (MAX9718), R
IN
= R
F
= 10k
(MAX971_A),
T
A
= +25
°
C. C
BIAS
= 0.1μF, no load. Typical values are at T
A
= +25
°
C, unless otherwise noted.) (Note 1)
ELECTRICAL CHARACTERISTICS
—
3V Supply
(V
CC
= 3V, GND = 0, SHDN/
SHDN
= V
CC
(MAX9718/MAX9719), SHDM = GND (MAX9718), R
IN
= R
F
= 10k
(MAX971_A),
T
A
= +25
°
C. C
BIAS
= 0.1μF, no load. Typical values are at T
A
= +25
°
C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
±1
UNITS
%
Gain Accuracy
MAX971_B/MAX971_C/MAX971_D
Channel-to-Channel Gain
Matching
MAX9719B/MAX9719C/MAX9719D
±1
%
Signal-to-Noise Ratio
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
Maximum Capacitive Drive
SNR
P
OUT
= 1W, R
L
= 8
-104
+160
15
500
dB
°
C
°
C
pF
C
LOAD
Bridge-tied capacitance
Power-Up/Enable from
Shutdown Time
t
PU
10
ms
Shutdown Time
Turn-Off Transient
Crosstalk
t
SHDN
V
POP
3.5
50
-85
μs
mV
dB
(Note 6)
MAX9719, f
IN
= 1kHz
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current
I
CC
V
IN-
= V
IN+
= V
BIAS
, T
A
= -40
°
C to +85
°
C,
per amplifier (Note 2)
3.8
6.0
mA
Shutdown Supply Current
I
SHDN
V
IH
V
IL
SHDN = SHDM =
SHDN
= GND, per amplifier
0.1
1
μA
0.7 x V
CC
SHDN
, SHDN, SHDM
Threshold
0.3 x V
CC
V
CC
/2
+ 5%
V
Common-Mode Bias Voltage
V
BIAS
(Note 3)
V
CC
/2
- 5%
V
CC
/2
V
A
V
= 0dB, MAX971_A/
MAX971_B
±1
±10
A
V
= 3dB, MAX971_C
A
V
= 6dB, MAX971_D
A
V
= 0dB, MAX971_B
A
V
= 3dB, MAX971_C
A
V
= 6dB, MAX971_D
±1
±1
±15
±20
Output Offset Voltage
V
OS
V
IN-
= V
IN+
= V
BIAS
mV
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
Inferred from
CMRR test
Common-Mode Input Voltage
V
IC
External gain, MAX971_A
MAX971_B/MAX971_C/MAX971_D
V
Input Impedance
R
IN
15
-60
-70
k
Common-Mode Rejection Ratio
CMRR
f
N
= 1kHz
dB
f = 217Hz
-93
Power-Supply Rejection Ratio
PSRR
V
IN-
= V
IN+
= V
BIAS
,
V
RIPPLE
= 200m V
P-P
,
R
L
= 8
C
BIAS
= 1μF
f = 1kHz
-90
dB
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| MAX9718AEBL+TG45 | 功能描述:音頻放大器 Mono/Stereo 1.4W BTL Audio Power Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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