參數(shù)資料
型號： MAX9718DEUB+T
廠商： Maxim Integrated Products
文件頁數(shù)： 21/27頁
文件大小： 0K
描述： IC AMP AUDIO PWR 1.4W AB 10MSOP
標(biāo)準(zhǔn)包裝： 2,500
類型： AB 類
輸出類型： 1-通道（單聲道）
在某負(fù)載時最大輸出功率 x 通道數(shù)量： 1.4W x 1 @ 4 歐姆
電源電壓： 2.7 V ~ 5.5 V
特點： 消除爆音，差分輸入，關(guān)閉，熱保護
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 10-µMAX-EP
封裝/外殼： 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤
包裝： 帶卷 (TR)
MAX9718/MAX9719
Low-Cost, Mono/Stereo,
1.4W Differential Audio Power Amplifiers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS—5V Supply (continued)
(VCC = 5V, GND = 0, SHDN/SHDN = VCC (MAX9718/MAX9719), SHDM = GND (MAX9718), RIN = RF = 10kΩ (MAX971_A/H),
TA = +25°C. CBIAS = 0.1μF, no load. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
ELECTRICAL CHARACTERISTICS—3V Supply
(VCC = 3V, GND = 0, SHDN/SHDN = VCC (MAX9718/MAX9719), SHDM = GND (MAX9718), RIN = RF = 10kΩ (MAX971_A/H),
TA = +25°C. CBIAS = 0.1μF, no load. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Gain Accuracy
MAX971_B/E, MAX971_C/F, MAX971_D/G
±1
%
Channel-to-Channel Gain
Matching
MAX9719B/E, MAX9719C/F, MAX9719D/G
±1
%
Signal-to-Noise Ratio
SNR
POUT = 1W, RL = 8
Ω
-104
dB
Thermal-Shutdown Threshold
+160
°C
Thermal-Shutdown Hysteresis
15
°C
Maximum Capacitive Drive
CLOAD
Bridge-tied capacitance
500
pF
Power-Up/Enable from
Shutdown Time
tPU
10
ms
Shutdown Time
tSHDN
3.5
μs
Turn-Off Transient
VPOP
(Note 6)
50
mV
Crosstalk
MAX9719, fIN = 1kHz
-85
dB
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current
ICC
VIN- = VIN+ = VBIAS, TA = -40°C to +85°C,
per amplifier (Note 2)
3.8
6.0
mA
Shutdown Supply Current
ISHDN
SHDN = SHDM =
SHDN = GND, per amplifier
0.1
1
μA
VIH
0.7 x VCC
SHDN, SHDN, SHDM
Threshold
VIL
0.3 x VCC
V
Common-Mode Bias Voltage
VBIAS
(Note 3)
VCC/2
- 5%
VCC/2
+ 5%
V
AV = 0dB, MAX971_A/H
MAX971_B/E
±1
±10
AV = 3dB, MAX971_C/F
±1
±15
Output Offset Voltage
VOS
VIN- = VIN+ = VBIAS
AV = 6dB, MAX971_D/G
±1
±20
mV
AV = 0dB, MAX971_B/E
0.5
VCC - 0.7
AV = 3dB, MAX971_C/F
0.5
VCC - 0.8
Inferred from
CMRR test
AV = 6dB, MAX971_D/G
0.5
VCC - 1.0
Common-Mode Input Voltage
VIC
External gain, MAX971_A/H
0.5
VCC - 1.2
V
Input Impedance
RIN
MAX971_B/E, MAX971_C/F, MAX971_D/G
10
15
20
k
Ω
-50
-60
Common-Mode Rejection Ratio
CMRR
fN = 1kHz
-70
dB
f = 217Hz
-93
Power-Supply Rejection Ratio
PSRR
VIN- = VIN+ = VBIAS,
VRIPPLE = 200mVP-P,
RL = 8
Ω,
CBIAS = 1μF
f = 1kHz
-90
dB
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參數(shù)描述
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