参数资料
型号: MAX9753ETI+T
厂商: Maxim Integrated Products
文件页数: 27/29页
文件大小: 0K
描述: IC AMP AUDIO PWR 2.2W D 28TQFN
标准包装: 2,500
系列: DirectDrive®
类型: D 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: 2.2W x 2 @ 4 欧姆; 62mW 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,短路和热保护,关机
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: 带卷 (TR)
MAX9752/MAX9753/MAX9754
2.2W, Low-EMI, Stereo, Class D Power Amplifiers
with DirectDrive Headphone Amplifiers
_______________________________________________________________________________________
7
OUTPUT POWER vs. LOAD RESISTANCE
(SPEAKER MODE)
MAX9752/53/54
toc10
LOAD RESISTANCE (
Ω)
OUTPUT
POWER
(W)
10
1
2
3
4
5
0
1
100
THD+N = 10%
THD+N = 1%
OUTPUT POWER vs. LOAD RESISTANCE
(SPEAKER MODE)
MAX9752
toc11
LOAD RESISTANCE (
Ω)
OUTPUT
POWER
(W)
10
1
2
3
4
0
1100
THD+N = 10%
THD+N = 1%
POWER DISSIPATION vs. OUTPUT POWER
(SPEAKER MODE)
MAX9752
toc12
OUTPUT POWER (W)
POWER
DISSIPATION
(W)
3
2
1
0.5
1.0
1.5
2.0
0
04
RL = 4
Ω
RL = 8
Ω
TURN-ON RESPONSE
(SPEAKER MODE)
MAX9752/53/54 toc14
4ms/div
SHDN
5V/div
500mV/div
OUT
(1kHz, 2VP-P)
OUT
(NO AUDIO)
100mV/div
TURN-OFF RESPONSE
(SPEAKER MODE)
MAX9752/53/54 toc15
2ms/div
SHDN
5V/div
500mV/div
OUT
(1kHz, 2VP-P)
OUT
(NO AUDIO)
100mV/div
Typical Operating Characteristics (continued)
(VDD = PVDD = HPVDD = CPVDD = 5.0V, GND = PGND = HPGND = 0V, VSHDN = VDD, CPVSS = VSS, CBIAS = 1F,
CCPVSS = 1F, C1 = 1F, speaker impedance = 8
Ω connected between OUT_+ and OUT_-, headphone load is terminated to GND;
MAX9752: GAIN1 = GAIN2 = 0, VVOL = 0V; MAX9753: GAIN = 0, VA/B = 0V; MAX9754: GAIN = 0; TA = +25°C, unless otherwise noted.)
EFFICIENCY vs. OUTPUT POWER
MAX9752
toc13
OUTPUT POWER (W)
EFFICIENCY
(%)
4
2
10
20
30
40
50
60
70
80
90
100
0
06
RL = 8
Ω||68μH
RL = 4
Ω||33μH
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