參數資料
型號: MAX9767ETJ+T
廠商: Maxim Integrated Products
文件頁數: 12/33頁
文件大?。?/td> 0K
描述: IC AMP AUDIO .75W STER AB 32TQFN
標準包裝: 2,500
類型: AB 類
輸出類型: 2 通道(立體聲)
在某負載時最大輸出功率 x 通道數量: 750mW x 2 @ 4 歐姆
電源電壓: 2.7 V ~ 5.5 V
特點: 消除爆音,麥克風,靜音,短路保護和熱保護,關機
安裝類型: 表面貼裝
供應商設備封裝: 32-TQFN-EP(5x5)
封裝/外殼: 32-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
MAX9765/MAX9766/MAX9767
750mW Audio Amplifiers with Headphone Amp,
Microphone Preamp, and Input Mux
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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
SVDD to GND .........................................................................+6V
SVDD to VDD.........................................................................-0.3V
PVDD to VDD .......................................................................±0.3V
PGND to GND.....................................................................±0.3V
All Other Pins to GND.................................-0.3V to (VDD + 0.3V)
Output Short-Circuit Duration (to VDD or GND)..........Continuous
Continuous Input Current (into any pin except power-supply
and output pins) ...............................................................±20mA
Continuous Power Dissipation (TA = +70°C)
32-Pin Thin QFN (derate 26.3mW/°C above +70°C) ...2105.3mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS
(VDD = PVDD = 3.0V, GND = 0, HPS = MUTE = GND, SHDN = 3V, CBIAS = 1F, RIN = RF = 15k, RL = ∞. TA = TMIN to TMAX, unless
otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
VDD/PVDD Inferred from PSRR test
2.7
5.5
V
MAX9765/MAX9767
12
28
Speaker mode
MAX9766
7
17
Quiescent Supply Current
(IVDD + IPVDD)
IDD
Headphone mode, HPS = VDD
717
mA
Shutdown Current
ISHDN
SHDN = GND
5
18
A
Switching Time
tSW
Gain or input switching
(MAX9765/MAX9766)
10
s
CBIAS = 1F, settled to 90%
250
Turn-On/Turn-Off Time
tON/OFF
CBIAS = 0.1F, settled to 90%
25
ms
Input Bias Current
IBIAS
50
nA
Thermal Shutdown Threshold
150
oC
Thermal Shutdown Hysteresis
8
oC
Output Short-Circuit Current
To VDD or GND
1.2
A
STANDBY SUPPLY (SVDD)
VBIAS = 1.25V, VDD = 0V
230
400
Standby Current
ISVDD
VBIAS = 1.5V, VDD = 3V
5
A
OUTPUT AMPLIFIERS (SPEAKER MODE)
Output Offset Voltage
VOS
VOUT_+ - VOUT_-, AV = 1V/V
10
45
mV
VDD = 2.7V to 5.5V
72
85
Power-Supply Rejection Ratio
PSRR
f = 1kHz, VRIPPLE = 200mVP-P
72
dB
RL = 8
450
Output Power
POUT
fIN = 1kHz, THD+N = 1%,
TA = +25
oC (Note 2)
RL = 4
400
750
mW
POUT = 200mW,
RL = 8
0.033
Total Harmonic Distortion Plus
Noise
THD+N
fIN = 1kHz, BW = 22Hz to
22kHz
POUT = 400mW,
RL = 4
0.065
%
Signal-to-Noise Ratio
SNR
RL = 8, VOUT_ = 1.4VRMS, BW = 22Hz to
22kHz
89
dB
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