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参数资料
型号： MAX9875ERP+T
厂商： Maxim Integrated Products
文件页数： 29/30页
文件大小： 0K
描述： IC AUDIO SUBSYSTEM 20UCSP
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： D 类
输出类型： 1-通道（单声道），带立体声耳机
在某负载时最大输出功率 x 通道数量： 825mW x 1 @ 4 欧姆; 53mW x 2 @ 16 欧姆
电源电压： 2.7 V ~ 5.25 V
特点： 消除爆音，差分输入，I²C，静音，短路和热保护，关机，音量控制
安装类型： 表面贴装
供应商设备封装： 20-UCSP
封装/外壳： 20-WFBGA，CSPBGA
包装： 带卷 (TR)
MAX9875
Low RF Susceptibility, Mono Audio
Subsystem with DirectDrive Headphone Amplifier
8
_______________________________________________________________________________________
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9875
toc10
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
1
0.1
0.01
10
100k
VDD = VPVDD = 3.7V
POUT = 200mW
ZSPK = 8 + 68H
fOSC = 700kHz
fOSC = 1176kHz
fOSC = 1100kHz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9875
toc11
OUTPUT POWER (W)
THD+N
(%)
1.5
1.0
0.5
0.1
1
10
0.01
02.0
fIN = 20Hz
fIN = 1kHz
fIN = 6kHz
VDD = VPVDD = 5V
ZSPK = 8 + 68H
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9875
toc12
OUTPUT POWER (W)
THD+N
(%)
1.5
0.1
1
10
0.01
02.5
1.0
3.0
0.5
2.0
VDD = VPVDD = 5V
ZSPK = 4 + 33H
DASHED LINES ARE LIMITED
BY THE ABS. MAX RATINGS
fIN = 6kHz
fIN = 20Hz
fIN = 1kHz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9875
toc13
OUTPUT POWER (mW)
THD+N
(%)
0.1
1
10
0.01
0
1000
600
400
800
200
fIN = 6kHz
fIN = 20Hz
fIN = 1kHz
VDD = VPVDD = 3.7V
ZSPK = 8 + 68H
Typical Operating Characteristics (continued)
(VDD = VPVDD = 3.7V, VGND = VPGND = 0V. Single-ended inputs, preamp gain = 0dB, volume controls = 0dB, OSC = 00, SHDN = 1.
Speaker loads (ZSPK) connected between OUT+ and OUT-. Headphone loads (RHP) connected from HPL or HPR to GND. ZSPK =
∞, RHP = ∞. C1 = C2 = CBIAS = 1F. TA = +25°C, unless otherwise noted.)
SPEAKER AMPLIFIER
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9875
toc06
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.1
1
10
0.01
10
100k
VDD = VPVDD = 3.7V
ZSPK = 8 + 68H
POUT = 200mW
POUT = 675mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9875
toc07
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.1
1
10
0.01
10
100k
VDD = VPVDD = 3.7V
ZSPK = 4 + 33H
DASHED LINES ARE LIMITED
BY THE ABS. MAX RATINGS
POUT = 1100mW
POUT = 650mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9875
toc08
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.1
1
10
0.01
10
100k
POUT = 425mW
POUT = 200mW
VDD = VPVDD = 3V
ZSPK = 8 + 68H
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9875
toc09
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.1
1
10
0.01
10
100k
POUT = 700mW
POUT = 250mW
VDD = VPVDD = 3V
ZSPK = 4 + 33H
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