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参数资料
| 型号： | MAX9725EEBC+TG45 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/17页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO .025W STER 12UCSP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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-UCSP（3x4） |
| 封装/外壳： | 12-WFBGA，WLCSP |
| 包装： | 带卷 (TR) |
MAX9725
1V, Low-Power, DirectDrive, Stereo Headphone
Amplifier with Shutdown
4
_______________________________________________________________________________________
Note 1: All specifications are 100% tested at TA = +25°C; temperature limits are guaranteed by design.
Note 2: Input leakage current measurements limited by automated test equipment.
Note 3: fIN = 1kHz, TA = +25°C, THD+N < 1%, both channels driven in-phase.
Note 4: Testing performed with 32
Ω resistive load connected to outputs. Mode transitions controlled by SHDN. KCP level calculated
as 20 log [peak voltage under normal operation at rated power level / peak voltage during mode transition]. Inputs are AC-
grounded.
Note 5: Using existing resistors with 1% precision.
Note 6: RIN = 10Ω, RF =10kΩ.
Typical Operating Characteristics
(VDD = 1.5V, VPGND = VSGND = 0V, VSHDN = 1.5V, VSS = VPVSS, C1 = C2 = 1F, CIN = 1F, THD+N measurement bandwidth =
22Hz to 22kHz, TA = +25
°C, unless otherwise noted.) (See the Functional Diagrams.)
10
10k
1k
100
100k
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9725
toc01
FREQUENCY (Hz)
THD+N
(%)
1
0.1
0.001
0.01
VDD = 1.5V
RL = 16
Ω
AV = -2V/V
POUT = 15mW
POUT = 2mW
10
10k
1k
100
100k
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9725
toc02
FREQUENCY (Hz)
THD+N
(%)
1
0.1
0.001
0.01
VDD = 1.5V
RL = 32
Ω
AV = -2V/V
POUT = 12mW
POUT = 2mW
10
10k
1k
100
100k
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9725
toc03
FREQUENCY (Hz)
THD+N
(%)
1
0.1
0.001
0.01
VDD = 1V
RL = 16
Ω
AV = -2V/V
POUT = 0.7mW
POUT = 4mW
ELECTRICAL CHARACTERISTICS (MAX9725E) (continued)
(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
RL = 32
Ω
10
24
VDD = 1.5V
RL = 16
Ω
25
VDD = 1.0V, RL = 32
Ω
7
Output Power (Note 3)
POUT
VDD = 0.9V, RL = 32
Ω
6
mW
RL = 32
Ω, POUT = 12mW, f = 1kHz
0.006
Total Harmonic Distortion Plus
Noise (Note 5)
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
0.3
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
RL = 32
Ω
-120
Attenuation in Shutdown
ATT(SD)
VSHDN = 0V
RL = 10k
Ω
-75
dB
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