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參數(shù)資料
| 型號(hào)： | MAX9741ETN+D |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 12W 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： | 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： | 12W x 2 @ 8 歐姆 |
| 電源電壓： | 10 V ~ 25 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 |
MAX9741
12W+12W, Low-EMI, Spread-Spectrum,
Stereo, Class D Amplifier
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 18V, GND = PGND = 0V, SHDN
≥ VIH, AV = 16dB, CSS = CIN = 0.47F, CREG = 0.01F, C1 = 100nF, C2 = 1F, FS1 = FS2 =
GND (fS = 670kHz), RL connected between OUTL+ and OUTL- and OUTR+ and OUTR-, TA = TMIN to TMAX, unless otherwise noted.
Typical values are at TA = +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
RL = 8
12
VDD = 18V, THD+N =
10%, f = 1kHz
RL = 4
6.5
RL = 8
11
VDD = 24V, THD+N =
10%, f = 1kHz
RL = 4
5
RL = 8
8
Continuous Output Power
(Notes 4, 5)
PCONT
VDD = 12V, THD+N =
10%, f = 1kHz
RL = 4
8.5
W
Total Harmonic Distortion Plus
Noise
THD+N
fIN = 1kHz, either FFM or SSM, RL = 8
,
POUT = 4W
0.1
%
FFM
95.8
Unweighted
SSM
91.8
FFM
99.1
Signal-to-Noise Ratio
SNR
RL = 8
,
POUT = 4W,
f = 1kHz
BW = 22Hz to 22kHz
A-weighted
SSM
95.7
dB
Crosstalk
Left to right, right to left, 8
load, fIN = 10kHz
65
dB
FS1 = L, FS2 = L
560
670
800
FS1 = L, FS2 = H
930
FS1 = H, FS2 = L
470
Oscillator Frequency
fOSC
FS1 = H, FS2 = H (spread-spectrum mode)
670
±7%
kHz
VDD = 12V, RL = 8
, POUT = 8W
78
Efficiency (Note 4)
η
VDD = 18V, RL = 8
, POUT = 10W
78
%
Regulator Output
VREG
6V
DIGITAL INPUTS (
SHDN, FS_, G_)
VIH
2.5
Input Thresholds
VIL
0.8
V
Input Leakage Current
±1A
Note 2: All devices are 100% production tested at +25°C. All temperature limits are guaranteed by design.
Note 3: PSRR is specified with the amplifier inputs connected to GND through CIN.
Note 4: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For RL = 8
, L = 68H.
For RL = 12
, L = 100H. For RL = 16, L = 120H.
Note 5: Output power measured at TA = +25°C, with a soak time of 15 minutes.
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