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| 型号： | MAX9756ETX+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 27/31页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 2.3W AB 36TQFN |
| 标准包装： | 50 |
| 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： | 36-TQFN 裸露焊盘（6x6） |
| 封装/外壳： | 36-WFQFN 裸露焊盘 |
| 包装： | 管件 |
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MAX9756/MAX9757/MAX9758
2.3W Stereo Speaker Amplifiers and DirectDrive
Headphone Amplifiers with Automatic Level Control
_______________________________________________________________________________________
5
Note 1:
All devices are 100% production tested at room temperature. All temperature limits are guaranteed by design.
Note 2:
PSRR is specified with the amplifier input connected to GND through RIN and CIN.
Note 3:
Output power levels are measured with the TQFN’s exposed paddle soldered to the ground plane.
Note 4:
Speaker path gain is defined as: AVSPKR = (VOUT+ - VOUT-)/VIN__).
Note 5:
Speaker mode testing performed with 8
resistive load connected across BTL output. Headphone mode testing per-
formed with 32
resistive load connected between HP_ and GND. Mode transitions are controlled by SHDN.
Note 6:
Headphone path gain is defined as: AVHP = VHP_/VIN__.
Note 7:
See Table 3 for detains on the mute levels.
Note 8:
Attack envelope is exponential. Attack time is defined as the 15 x 103 x CT.
Note 9:
Time for the gain to return to within 10% of nominal gain setting after the input signal has fallen below the PREF threshold.
Release is linear in dB. Release time is proportional to magnitude of gain compression.
Note 10: Dropout voltage is defined as (VIN - VOUT) when VOUT is 2% below the value of VOUT for VIN = VOUT(NOM) + 1V.
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = HPVDD = CPVDD = IN = +5.0V, GND = PGND = CPGND = 0, SHDN = VDD, REGEN = VDD, DR = SET = GND, CBIAS
= 1F, CPVSS = 1F, C1 = C2 = 1F, PREF = unconnected, speaker loads terminated between OUT_+ and OUT_-, headphone load
terminated between HP_ and GND, GAIN1 = GAIN2 = GAIN3 = VOL = 0 (AV(SP) = 15dB, AV(HP) = 0dB), TA = -40°C to +85°C, unless
otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC INPUT HEADPHONE (HPS)
Input High Voltage
VIH
2V
Input Low Voltage
VIL
0.8
V
HPS Pullup Current
35
A
LOW-DROPOUT LINEAR REGULATOR
Input Voltage Range
VIN
Inferred from line regulation
3.5
5.5
V
IOUT = 0mA, SHDN = GND
100
160
Supply (Ground) Current
IQ
IOUT = 150mA
350
A
Shutdown Current
ISHDN
REGEN = 0V
0.1
3
A
Output Current
IOUT
150
mA
Fixed Output Voltage Accuracy
IOUT = 1mA
±1.5
%
Adjustable Output Voltage Range
VSET
4.85
V
SET Reference Voltage
VSET
1.19
1.21
1.23
V
SET Dual-Mode Threshold
200
mV
SET Input Leakage Current
ISET
±20
±500
nA
IOUT = 50mA
25
50
Dropout Voltage (Note 10)
VOD
VOUT = 4.65V (fixed
output operation)
IOUT = 150mA
100
150
mV
Output Current Limit
ILIM
300
mA
Startup Time
20
s
Line Regulation
VIN = 3.5V to 5.5V, VOUT = 2.5V,
IOUT = 1mA
-0.1
+0.01
+0.1
%/V
Load Regulation
VOUT = 4.65V, 1mA < IOUT < 150mA
0.5
%
f = 1kHz
60
Ripple Rejection
VRIPPLE = 200mVP-P
f = 10kHz
50
dB
Output Voltage Noise
20Hz to 22kHz, COUT = 2 x 1F,
IOUT = 150mA, VOUT = 4.65V
100
VRMS
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9756ETX+ | 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 |
| MAX9756ETX+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 |
| MAX9756EVKIT | 功能描述:放大器 IC 开发工具 Programmers, Development Systems RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX9757ETJ+ | 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 |
| MAX9757ETJ+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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