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参数资料
型号： MAX9758ETJ+T
厂商： Maxim Integrated Products
文件页数： 30/31页
文件大小： 0K
描述： IC AMP AUDIO PWR 2.3W AB 32TQFN
标准包装： 2,500
系列： DirectDrive®
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： 2.3W x 2 @ 3 欧姆; 130mW x 2 @ 16 欧姆
电源电压： 4.5 V ~ 5.5 V
特点： 消除爆音，短路保护和热保护，关机，音量控制
安装类型： 表面贴装
供应商设备封装： 32-TQFN-EP（5x5）
封装/外壳： 32-WFQFN 裸露焊盘
包装： 带卷 (TR)
MAX9756/MAX9757/MAX9758
2.3W Stereo Speaker Amplifiers and DirectDrive
Headphone Amplifiers with Automatic Level Control
8
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VDD = PVDD = HPVDD = CPVDD = IN = +5.0V, GND = PGND = CPGND = 0V, SHDN = VDD, REGEN = DR = SET = GND, CBIAS =
1F, CPVSS = 1F, C1 = C2 = 1F, PREF = unconnected, GAIN1 = 1, GAIN2 = GAIN3 = VOL = 0V, measurement BW = 22Hz to
22kHz, TA = +25°C, unless otherwise noted.)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
MAX9756
toc19
OUTPUT POWER (mW)
THD+N
(%)
100
80
60
40
20
0.01
0.1
1
10
100
0.001
0
120
HPVDD = 3.3V
RL = 16
fIN = 100Hz
fIN = 10kHz
fIN = 1kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
MAX9756
toc20
OUTPUT POWER (mW)
THD+N
(%)
80 90
70
40 50 60
30
10 20
0.01
0.1
1
10
100
0.001
0
100
HPVDD = 3.3V
RL = 32
fIN = 100Hz
fIN = 1kHz
fIN = 10kHz
OUTPUT POWER vs. LOAD RESISTANCE
(HEADPHONE MODE)
MAX9756
toc21
LOAD RESISTANCE (
)
OUTPUT
POWER
(mW)
100
20
40
60
80
100
120
140
0
10
1000
HPVDD = 3.3V
f = 1kHz
THD+N = 10%
THD+N = 1%
OUTPUT POWER vs. LOAD RESISTANCE
(HEADPHONE MODE)
MAX9756
toc22
LOAD RESISTANCE (
)
OUTPUT
POWER
(mW)
100
20
40
60
80
100
120
140
160
180
200
0
10
1000
HPVDD = 5V
f = 1kHz
THD+N = 10%
THD+N = 1%
POWER DISSIPATION vs. OUTPUT POWER
(HEADPHONE MODE)
MAX9756
toc23
OUTPUT POWER (mW)
POWER
DISSIPATION
(mW)
225
200
175
150
125
100
75
50
25
0.2
0.4
0.6
0.8
0
250
f = 1kHz
POUT = PHL + PHR
RL = 16
RL = 32
OUTPUT POWER vs. SUPPLY VOLTAGE
(HEADPHONE MODE)
MAX9756
toc24
SUPPLY VOLTAGE (V)
OUTPUT
POWER
(mW)
5.0
4.5
4.0
3.5
10
20
30
40
50
60
70
80
90
100
110
120
130
140
0
3.0
5.5
RL = 16
RL = 32
THD+N = 1%
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (HEADPHONE MODE)
MAX9756
toc25
FREQUENCY (Hz)
PSRR
(dB)
10k
1k
100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10
100k
VRIPPLE = 100mVP-P
INPUTS AC-GROUNDED
HPVDD = 5V
HPVDD = 3.3V
CROSSTALK vs. FREQUENCY
(HEADPHONE MODE)
MAX9756
toc26
FREQUENCY (Hz)
CROSSTALK
(dB)
10
1
0.1
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-110
0.01
100
RL = 32
f = 1kHz
VIN = 200mVP-P
RIGHT TO LEFT
LEFT TO RIGHT
OUTPUT POWER vs. CHARGE-PUMP
CAPACITANCE (HEADPHONE MODE)
MAX9756
toc27
LOAD (
)
OUTPUT
POWER
(mW)
30
25
20
15
35
40
45
40
30
50
60
70
80
90
100
120
110
130
140
150
20
10
50
C1 = C2 = 1
F
C1 = C2 = 2.2
F
f = 1kHz
THD+N = 1%
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相关代理商/技术参数
参数描述
MAX9759ETE+ 功能描述:音频放大器 3.2W Low-EMI Class D Amplifier 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
MAX9759ETE+T 功能描述:音频放大器 3.2W Low-EMI Class D Amplifier 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
MAX9759EUE+ 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX9759EUE+T 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO 4.3W CLS-D 16TSSOP - Tape and Reel
MAX9759EVKIT 功能描述:音频放大器 Evaluation Kit for the MAX9759 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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