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參數(shù)資料
| 型號： | MAX9773ETG+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO PWR 1.8W D 24TQFN |
| 標準包裝： | 2,500 |
| 類型： | D 類 |
| 輸出類型： | 2 通道（立體聲） |
| 在某負載時最大輸出功率 x 通道數(shù)量： | 1.8W x 2 @ 4 歐姆 |
| 電源電壓： | 2.6 V ~ 5.5 V |
| 特點： | 消除爆音，差分輸入，短路和熱保護，關(guān)閉 |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 24-TQFN-EP（4x4） |
| 封裝/外殼： | 24-WFQFN 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
MAX9773
1.8W, Filterless, Ultra-Low EMI,
Stereo Class D Audio Power Amplifier
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD = VPVDD = VSHDN = 3.3V, VGND = VPGND = 0V, SYNC = 0V (FFM), gain = 12dB (GAIN1 = 1, GAIN2 = 1), RL connected between
OUT+ and OUT-, RL =
∞, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2)
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.
VDD to GND..............................................................................6V
VDD to PVDD ..........................................................-0.3V to +0.3V
PVDD to PGND .........................................................................6V
GND to PGND .......................................................-0.3V to +0.3V
All Other Pins to GND.................................-0.3V to (VDD + 0.3V)
Continuous Current In/Out of PVDD, PGND, OUT_ .........
±800mA
Continuous Input Current (all other pins)..........................
±20mA
Duration of OUT_ Short Circuit to
VDD/GND/PVDD/PGND...........................................Continuous
Duration of Short Circuit Between OUT+ and OUT- ......Continuous
Continuous Power Dissipation (TA = +70°C)
20-Bump UCSP (derate 10mW/°C above +70°C) ...........800mW
24-Pin Thin QFN (derate 20.8mW/°C above +70°C) ..1666.7mW
Junction Temperature ......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Bump Temperature (soldering) Reflow............................+235°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Supply Voltage Range
VDD
Inferred from PSRR test
2.6
5.5
V
Quiescent Current
IDD
Per channel
5.5
7.5
mA
Shutdown Current
ISHDN
0.1
10
A
Common-Mode Rejection Ratio
CMRR
fIN = 1kHz
66
dB
Input Bias Voltage
VBIAS
1.125
1.25
1.375
V
Turn-On Time
tON
80
ms
Output Offset Voltage
VOS
TA = +25
oC
±10
±50
mV
VDD = 2.5V to 5.5V, VIN = 0V, TA = +25
oC59
80
TMIN < TA < TMAX
56
fRIPPLE = 217Hz
72
Power-Supply Rejection Ratio
PSRR
100mVP-P ripple,
VIN = 0V
fRIPPLE = 20kHz
50
dB
RL = 8
500
VDD = 3.3V
RL = 4
750
RL = 8
1300
Output Power (Note 3)
POUT
THD+N = 1%,
TA = +25
oC
VDD = 5V
RL = 4
1800
mW
RL = 8
(POUT = 400mW), f = 1kHz
0.04
Total Harmonic Distortion Plus
Noise (Note 3)
THD+N
RL = 4
(POUT = 600mW), f = 1kHz
0.08
%
FFM
86
BW = 22Hz
to 22kHz
SSM
86
FFM
88.5
Signal-to-Noise Ratio
SNR
VOUT = 1VRMS
A-weighted
SSM
88.5
dB
SYNC = GND, TA = +25
oC
950
1100
1250
SYNC = unconnected, TA = +25
oC
1200
1400
1600
Oscillator Frequency
fOSC
SYNC = VDD, TA = +25
oC
1200
±60
kHz
Minimum On-Time
tMIN
200
ns
SYNC Frequency Lock Range
fSYNC
1000
2000
kHz
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