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參數(shù)資料
| 型號(hào)： | MAX9709ETN+D |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 12/20頁 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 50W STER 56TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 37 |
| 類型： | D 類 |
| 輸出類型： | 1-通道（單聲道）或 2-通道（立體聲） |
| 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： | 50W x 1 @ 4 歐姆; 29W x 2 @ 8 歐姆 |
| 電源電壓： | 10 V ~ 22 V |
| 特點(diǎn)： | 消除爆音，差分輸入，靜音，短路和熱保護(hù)，關(guān)機(jī) |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 56-TQFN-EP（8x8） |
| 封裝/外殼： | 56-WFQFN 裸露焊盤 |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1392 (CN2011-ZH PDF) |
MAX9709
25W/50W, Filterless, Spread-Spectrum,
Stereo/Mono, Class D Amplifier
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(PVDD = VDD = +20V, PGND = GND = 0V, CSS = 0.47F, CREG = 0.01F, C1 = 0.1F, C2 = 1F, RLOAD = ∞, MONO = low (stereo
mode), SHDN = MUTE = high, G1 = low, G2 = high (AV = 22dB), FS1 = FS2 = high (SSM), SYNCIN = low. All load resistors (RL) are
connected between OUT_+ and OUT_-, unless otherwise stated. TA = TMIN to TMAX, 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.
PVDD, VDD to PGND, GND .......................................-0.3 to +30V
PVDD to VDD ..........................................................-0.3V to +0.3V
OUTR+, OUTR-, OUTL+,
OUTL- to PGND, GND..........................-0.3V to (PVDD + 0.3V)
C1N to GND .............................................-0.3V to (PVDD + 0.3V)
C1P to GND..............................(PVDD - 0.3V) to (CPVDD + 0.3V)
CPVDD to GND ..........................................(PVDD - 0.3V) to +40V
All Other Pins to GND.............................................-0.3V to +12V
Continuous Input Current (except PVDD, VDD, OUTR+,
OUTR-, OUTL+, and OUTL-) ..........................................20mA
Continuous Power Dissipation (TA = +70°C)
56-Pin Thin QFN (derate 47.6mW/°C above +70°C) .....3.81W
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Thermal Resistance (
θJC)
56-Pin Thin QFN… ......................................................0.6°C/W
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
VDD
Inferred from PSRR test
10
22
V
Shutdown Current
I
SHDN
SHDN = low
0.1
1
A
Shutdown to Full Operation
tSON
100
ms
Mute to Full Operation
tMUTE
100
ms
G1 = 0, G2 = 1
50
85
125
G1 = 1, G2 = 1
40
63
90
G1 = 1, G2 = 0
25
43
60
Input Impedance
RIN
G1 = 0, G2 = 0
12
21
30
k
Ω
Output Pulldown Resistance
SHDN = GND
600
k
Ω
Output Offset Voltage
VOS
AC-coupled input, measured between
OUT_+ and OUT_-
3
±40
mV
PVDD = 10V to 22V
67
90
fRIPPLE = 1kHz
90
Power-Supply Rejection Ratio
PSRR
200mVP-P ripple
(Note 2)
fRIPPLE = 20kHz
52
dB
DC, input referred
49
70
Common-Mode Rejection Ratio
CMRR
f = 20Hz to 20kHz, input referred
60
dB
Switch On-Resistance
RDS
One power switch
0.3
0.6
Ω
FS1
FS2
0
180
200
220
1
1 (SSM)
200
1
0
160
Switching Frequency
fSW
0
1
250
kHz
Oscillator Spread Bandwidth
FS1 = FS2 = high (SSM)
±2
%
SYNCIN Lock Range
Equal to fSW x 4
600
1200
kHz
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