参数资料
型号: MAX9778ETI+
厂商: Maxim Integrated Products
文件页数: 23/27页
文件大小: 0K
描述: IC AMP AUDIO PWR 2.6W AB 28TQFN
标准包装: 60
类型: AB 类
输出类型: 2-通道(立体声)带立体声耳机
在某负载时最大输出功率 x 通道数量: 2.6W x 2 @ 4 欧姆; 200mW x 2 @ 16 欧姆
电源电压: 4.5 V ~ 5.5 V
特点: 消除爆音,输入多路复用器,静音,关机,热保护,
安装类型: 表面贴装
供应商设备封装: 28-TQFN-EP(5x5)
封装/外壳: 28-WFQFN 裸露焊盘
包装: 管件
MAX9777/MAX9778
Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
_______________________________________________________________________________________
5
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
MAX9777/78
toc01
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
RL = 3
AV = 2V/V
POUT = 2.5W
POUT = 2W
POUT = 500mW POUT = 1W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
MAX9777/78
toc02
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
RL = 3
AV = 4V/V
POUT = 2.5W
POUT = 2W
POUT = 500mW POUT = 1W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
MAX9777/78
toc03
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
RL = 4
AV = 2V/V
POUT = 2W
POUT = 1W
POUT = 500mW
POUT = 250mW
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
MAX9777/78
toc04
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
RL = 4
AV = 4V/V
POUT = 250mW
POUT = 2W
POUT = 1W
POUT = 500mW
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
MAX9777/78
toc05
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
RL = 8
AV = 2V/V
POUT = 250mW
POUT = 1.2W
POUT = 1W
POUT = 500mW
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY (SPEAKER MODE)
MAX9777/78
toc06
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
POUT = 250mW
POUT = 1.2W
POUT = 1W
POUT = 500mW
RL = 8
AV = 4V/V
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9777/78
toc07
OUTPUT POWER (W)
THD+N
(%)
3
2
1
0.01
10
1
0.1
100
0.001
04
AV = 2V/V
RL = 3
f = 1kHz
f = 20Hz
f = 10kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9777/78
toc08
OUTPUT POWER (W)
THD+N
(%)
3
2
1
0.01
10
1
0.1
100
0.001
04
AV = 4V/V
RL = 3
f = 20Hz
f = 1kHz
f = 10kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (SPEAKER MODE)
MAX9777/78
toc09
OUTPUT POWER (W)
THD+N
(%)
2.5
3.0
2.0
1.5
1.0
0.5
0.01
10
1
0.1
100
0.001
0
3.5
AV = 2V/V
RL = 4
f = 20Hz
f = 1kHz
f = 10kHz
Typical Operating Characteristics
(VDD = PVDD = 5V, GND = PGND = 0V, VSHDN = 5V, CBIAS = 1F, TA = +25°C, unless otherwise noted.)
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MAX9779ETI+T 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel
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