參數(shù)資料
型號(hào)： MAX9725AETC+T
廠商： Maxim Integrated Products
文件頁數(shù)： 11/17頁
文件大?。?/td> 0K
描述： IC AMP AUDIO .025W STER 12TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
系列： DirectDrive®
類型： AB 類
輸出類型： 耳機(jī)，2-通道（立體聲）
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 25mW x 2 @ 16 歐姆
電源電壓： 900 mV ~ 1.8 V
特點(diǎn)： 消除爆音，短路保護(hù)，關(guān)機(jī)
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 12-TQFN-EP（4x4）
封裝/外殼： 12-WQFN 裸露焊盤
包裝： 帶卷 (TR)
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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