参数资料
型号: MAX9725BETC+
厂商: Maxim Integrated Products
文件页数: 11/17页
文件大小: 0K
描述: IC AMP AUDIO .025W STER 12TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 75
系列: DirectDrive®
类型: AB 类
输出类型: 耳机,2-通道(立体声)
在某负载时最大输出功率 x 通道数量: 25mW x 2 @ 16 欧姆
电源电压: 900 mV ~ 1.8 V
特点: 消除爆音,短路保护,关机
安装类型: 表面贴装
供应商设备封装: 12-TQFN-EP(4x4)
封装/外壳: 12-WQFN 裸露焊盘
包装: 管件
MAX9725
1V, Low-Power, DirectDrive, Stereo Headphone
Amplifier with Shutdown
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (MAX9725A–MAX9725D) (continued)
(VDD = 1.5V, VPGND = VSGND = 0V, VSHDN = 1.5V, VSS = VPVSS, C1 = C2 = 1F, CIN = 1F, RL = ∞, TA = TMIN to TMAX, unless other-
wise noted. Typical values are at TA = +25
°C.) (See the Functional Diagrams.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
RL = 32
Ω, POUT = 12mW, f = 1kHz
0.006
Total Harmonic Distortion Plus
Noise
THD+N
RL = 16
Ω, POUT = 15mW, f = 1kHz
0.015
%
BW = 22Hz to 22kHz
89
Signal-to-Noise Ratio
SNR
RL = 32
Ω, POUT = 12mW
A-weighted filter
92
dB
Slew Rate
SR
0.2
V/s
Maximum Capacitive Load
CL
No sustained oscillations
150
pF
Crosstalk
XTALK
fIN = 1.0kHz, RL = 32
Ω, POUT = 5mW
100
dB
Into shutdown
72.8
Click-and-Pop Level
KCP
RL = 32
Ω, peak voltage,
A-weighted, 32 samples per
second (Note 4)
Out of shutdown
72.8
dBV
ESD Protection
VESD
Human Body Model (OUTR, OUTL)
±8
kV
ELECTRICAL CHARACTERISTICS (MAX9725E)
(VDD = 1.5V, VPGND = VSGND = 0V, VSHDN = 1.5V, VSS = VPVSS, C1 = C2 = 1F, CIN = 1F, RL = 32Ω, RF = 60kΩ, RIN = 10kΩ, TA =
TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25
°C.) (See the Functional Diagrams.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
VDD
Guaranteed by PSRR test
0.9
1.8
V
Quiescent Supply Current
IDD
Both channels active
2.3
3.7
mA
TA = +25
°C
0.6
1
Shutdown Current
ISHDN
VSHDN = 0V
TA = -40
°C to +85°C10
A
Shutdown to Full Operation
tON
180
s
VIH
VDD = 0.9V to 1.8V
0.7 x VDD
SHDN Thresholds
VIL
VDD = 0.9V to 1.8V
0.3 x VDD
V
SHDN Input Leakage Current
ILEAK
VDD = 0.9V to 1.8V (Note 2)
±1A
CHARGE PUMP
Oscillator Frequency
fOSC
483
592
687
kHz
AMPLIFIERS
Voltage Gain
AV
(Note 5)
-6.11
-6.07
-6.00
V/V
Minimum Stable Gain
ΔAV
-1.0
V/V
Total Output Offset Voltage
VOS
Input AC-coupled, RL = 32
Ω to GND,
TA = +25
°C (Note 6)
±0.63
±2.1
mV
Input Resistance
RIN
6.3
9.78
14
k
Ω
INR, INL Input Leakage
Current
ILK
±100
nA
Maximum Input Parasitic
Capacitance
CPAR
5pF
VDD = 0.9V to 1.8V, TA = +25
°C
52.9
67.8
fIN = 1kHz
70
Power-Supply Rejection Ratio
PSRR
100mVP-P ripple
(Note 5)
fIN = 20kHz
62
dB
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