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參數(shù)資料
| 型號： | MAX9756ETX+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 27/31頁 |
| 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® |
| 類型： | AB 類 |
| 輸出類型： | 2-通道（立體聲）帶立體聲耳機(jī) |
| 在某負(fù)載時最大輸出功率 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： | 消除爆音，短路保護(hù)和熱保護(hù)，關(guān)機(jī)，音量控制 |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 36-TQFN 裸露焊盤（6x6） |
| 封裝/外殼： | 36-WFQFN 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
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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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| MAX9756EVKIT | 功能描述:放大器 IC 開發(fā)工具 Programmers, Development Systems RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
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| MAX9757ETJ+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+ | 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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