参数资料
型号: MAX9718DEBL+TG45
厂商: Maxim Integrated Products
文件页数: 21/27页
文件大小: 0K
描述: IC AMP AUDIO PWR 1.4W MONO 9UCSP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: AB 类
输出类型: 1-通道(单声道)
在某负载时最大输出功率 x 通道数量: 1.4W x 1 @ 4 欧姆
电源电压: 2.7 V ~ 5.5 V
特点: 消除爆音,差分输入,关闭,热保护
安装类型: 表面贴装
供应商设备封装: 9-UCSP(3x3)
封装/外壳: 9-UFBGA,WLCSP
包装: 带卷 (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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