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參數(shù)資料
| 型號(hào)： | MAX9720BEBE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO .05W STER AB 16UCSP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | DirectDrive®, SmartSense™ |
| 類型： | AB 類 |
| 輸出類型： | 耳機(jī)，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： | 50mW x 2 @ 32 歐姆 |
| 電源電壓： | 1.8 V ~ 3.6 V |
| 特點(diǎn)： | 消除爆音，短路保護(hù)和熱保護(hù)，關(guān)閉 |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 16-UCSP（2x2） |
| 封裝/外殼： | 16-WFBGA，CSPBGA |
| 包裝： | 帶卷 (TR) |
MAX9720
50mW, DirectDrive, Stereo Headphone
Amplifier with SmartSense and Shutdown
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD = VMODE1 = VMODE2 = 3.0V, PGND = SGND = 0V, RL =
∞, C1 = C2 = 2.2F. 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.
PGND to SGND .....................................................-0.3V to +0.3V
PVSS to SVSS .........................................................-0.3V to +0.3V
VDD to PGND or SGND ............................................-0.3V to +4V
PVSS and SVSS to PGND or SGND ..........................-4V to +0.3V
IN_, OUT_, and HPS to SGND .......(SVSS - 0.3V) to (VDD + 0.3V)
C1P to PGND ...............................(PGND - 0.3V) to (VDD + 0.3V)
C1N to PGND .............................(PVSS - 0.3V) to (PGND + 0.3V)
ALERT to PGND .......................................................-0.3V to +4V
MODE_ to PGND ........................................-0.3V to (VDD + 0.3V)
TIME to SGND ............................................-0.3V to (VDD + 0.3V)
Output Short Circuit to GND or VDD ...............................Continuous
Continuous Power Dissipation (TA = +70°C)
16-Bump UCSP (derate 8.2mW/°C above +70°C) .......659mW
16-Pin TSSOP (derate 9.4mW/°C above +70°C) .......754.7mW
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
1.8
3.6
V
Stereo mode
5
8.4
Supply Current
IDD
Mono mode (MODE1 = VDD, MODE2 = GND)
3
mA
Shutdown Supply Current
ISHDN
MODE1 = MODE2 = GND
6
10
A
Turn-On/Turn-Off Time
tS
250
s
CHARGE PUMP
Oscillator Frequency
fOSC
272
320
368
kHz
HEADPHONE AMPLIFIERS
MAX9720A
-1.02
-1
-0.98
Voltage Gain
AV
MAX9720B
-1.443
-1.415
-1.386
V/V
Gain Match
AV
Between OUTL and OUTR
±1%
MAX9720A
-5
-0.8
+3.6
Total Output Offset Voltage
(Note 3)
VOS
MAX9720B
-6.5
-1
+4.5
mV
Input Resistance
RIN
10
15
20
k
1.8V
≤ VDD ≤ 3.6V
(Note 3)
DC
76
92
fRIPPLE = 217Hz
92
fRIPPLE = 1kHz
86
Power-Supply Rejection Ratio
PSRR
VDD = 3.0V,
200mVP-P ripple
(Note 3)
fRIPPLE = 20kHz
61
dB
RL = 32
50
Output Power
POUT
THD+N = 1%, fIN =
1kHz, TA = +25°C
RL = 16
32
50
mW
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