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參數(shù)資料
| 型號(hào)： | MAX9792CETI+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 23/34頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO 2.0W STER D 28TQFN |
| 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® |
| 類型： | D 類 |
| 輸出類型： | 1-通道（單聲道），帶立體聲耳機(jī) |
| 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： | 3.7W x 1 @ 3 歐姆; 180mW x 2 @ 32 歐姆 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 特點(diǎn)： | 消除爆音，LDO，短路保護(hù)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： | 28-TQFN-EP（4x4） |
| 封裝/外殼： | 28-WFQFN 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
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MAX9791/MAX9792
Windows Vista-Compliant Class D Speaker
Amplifiers with DirectDrive Headphone Amplifiers
_______________________________________________________________________________________
3
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Shutdown to Full Operation
tON
0.4
ms
Overtemperature Threshold
+150
°C
SPEAKER AMPLIFIER
RL = 4
(MAX9791)
1.7
RL = 8
(MAX9791)
1.2
THD+N = 1%,
f = 1kHz,
TA = +25°C
(Note 5)
RL = 3
(MAX9792)
3
RL = 4
(MAX9791)
2.2
RL = 8
(MAX9791)
1.5
Output Power
POUT
THD+N = 10%,
f = 1kHz,
TA = +25°C
(Note 5)
RL = 3
(MAX9792)
3.7
W
RL = 8 , POUT = 500mW, f = 1kHz (Note 5)
0.04
Total Harmonic Distortion Plus
Noise
THD+N
RL = 4 , POUT = 500mW, f = 1kHz (Note 5)
0.03
%
VAVDD = VPVDD = 2.7V to 5.5V, TA = +25°C
60
80
f = 217Hz, 200mVP-P
73
f = 1kHz, 200mVP-P
75
Power-Supply Rejection Ratio
PSRR
f = 10kHz, 200mVP-P
62
dB
Feedback Impedance
RFSKR
Guaranteed by design
20
k
Gain
AV
RIN1 = 20k
12
dB
Output Offset Voltage
VOS
Measured between OUT_+ and OUT_-,
TA = +25°C
±3
±10
mV
Into shutdown
-52.4
Click-and-Pop Level
KCP
RL = 8 ,
peak voltage,
A-weighted,
32 samples per second
(Notes 5, 6, and 7)
Out of
shutdown
-54
dBV
A-weighted
98
Signal-to-Noise Ratio
SNR
RL = 8
POUT = 1.2W fIN = 1kHz,
(Note 5)
20Hz to 20kHz
94
dB
Noise
VN
A-weighted
38
VRMS
L to R, R to L, RL = 8 , VIN = -20dBFS =
100mVRMS, fIN = 1kHz (Note 5)
78
L to R, R to L, RL = 8 , VIN = -20dBFS =
100mVRMS, fIN = 15kHz (Note 5)
70
Crosstalk
HP to SPKR, RLSPKR = 8 , PHP = 20mW,
RLHP = 32 , fIN = 1kHz (Note 5)
77
dB
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VPVDD = VHPVDD = 5V, VGND = VPGND = VCPGND = 0, ILDO_OUT = 0, CLDO = 2F (CLDO = 4F for 1.8V LDO option),
C1 = C2 = 1F. RL = ∞, unless otherwise specified. RIN1 = 20k (AVSPKR = 12dB), RIN2 = 40.2k (AVHP = 0dB), CIN1 = 470nF,
CIN2 =CCOM = 1F, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 3)
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