參數(shù)資料
型號(hào)： MAX9756ETX+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 12/31頁(yè)
文件大?。?/td> 0K
描述： IC AMP AUDIO PWR 2.3W AB 36TQFN
標(biāo)準(zhǔn)包裝： 2,500
系列： DirectDrive®
類(lèi)型： AB 類(lèi)
輸出類(lèi)型： 2-通道（立體聲）帶立體聲耳機(jī)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 2.3W x 2 @ 3 歐姆; 130mW x 2 @ 16 歐姆
電源電壓： 4.5 V ~ 5.5 V
特點(diǎn)： 消除爆音，短路保護(hù)和熱保護(hù)，關(guān)機(jī)，音量控制
安裝類(lèi)型： 表面貼裝
供應(yīng)商設(shè)備封裝： 36-TQFN 裸露焊盤(pán)（6x6）
封裝/外殼： 36-WFQFN 裸露焊盤(pán)
包裝： 帶卷 (TR)
MAX9756/MAX9757/MAX9758
2.3W Stereo Speaker Amplifiers and DirectDrive
Headphone Amplifiers with Automatic Level Control
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(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)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (VDD, PVDD, HPVDD, CPVDD, IN to GND) ....+6V
PGND, CPGND to GND ......................................................±0.3V
CPVSS, C1N, VSS to GND......................................-6.0V to +0.3V
HP_ to GND ...........................................................................±3V
Any Other Pin .............................................-0.3V to (VDD + 0.3V)
Duration of OUT_ Short Circuit to GND or PVDD........Continuous
Duration of OUT_+ Short Circuit to OUT_- .................Continuous
Duration of HP_ Short Circuit to GND,
VSS, or HPVDD.........................................................Continuous
Duration of OUT Short Circuit to GND........................Continuous
Continuous Current (PVDD, OUT_, PGND) ...........................1.7A
Continuous Current (CPVDD, C1N, CPGND, C1P, CPVSS,
VSS, HPVDD, HP_, IN, OUT) .............................................0.85A
Continuous Input Current (all other pins) .........................±20mA
Continuous Power Dissipation (TA = +70°C, single-layer board)
32-Pin Thin QFN (derate 18.6mW/°C above +70°C).....1490mW
36-Pin Thin QFN (derate 20.4mW/°C above +70°C).....1633mW
Continuous Power Dissipation (TA =+70°C, multilayer board)
32-Pin Thin QFN (derate 24.9mW/°C above +70°C).....1990mW
36-Pin Thin QFN (derate 27.7mW/°C above +70°C).....2180mW
Junction Temperature .....................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Supply Voltage Range
VDD, PVDD Inferred from PSRR test
4.5
5.5
V
Headphone Supply Voltage
HPVDD
Inferred from PSRR test
3.0
5.5
V
HPS = GND, speaker
mode, RL =
∞
14
29
Quiescent Supply Current
IDD
IDD = IVDD +
IHPVDD + ICPVDD
HPS = 5V, headphone
mode, RL =
∞
713
mA
Shutdown Supply Current
ISHDN
SHDN = REGEN = GND
0.2
5
A
Bias Voltage
VBIAS
2.2
2.43
2.65
V
Switching Time
tSW
Gain or input switching
10
s
Input Resistance
RIN
INL and INR
10
20
30
k
Turn-On Time
tSON
25
ms
SPEAKER AMPLIFIERS (HPS = GND)
Output Offset Voltage
VOS
Measured between OUT_+ and OUT_-,
TA = +25°C
±0.4
±15
mV
PVDD = 4.5V to 5.5V, TA = +25°C
75
95
f = 1kHz, VRIPPLE = 200mVP-P
83
Power-Supply Rejection Ratio
(Note 2)
PSRR
f = 10kHz, VRIPPLE = 200mVP-P
68
dB
RL = 8
0.9
1.3
RL = 4
2.0
Output Power (Note 3)
POUT
THD+N = 1%, f = 1kHz
(TA = +25°C)
RL = 3
2.3
W
RL = 8
, BTL POUT = 1W, f = 1kHz
0.009
Total Harmonic Distortion Plus
Noise
THD+N
RL = 4
, BTL POUT = 1W, f = 1kHz
0.015
%
RL = 8
, BTL POUT = 1W, BW = 22Hz to
22kHz, unweighted
92
Signal-to-Noise Ratio
SNR
RL = 8
, BTL POUT = 1W, A weighted
95
dB
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MAX9758ETJ+ 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9758ETJ+T 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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