參數(shù)資料
型號(hào)： MAX9707ETX+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 19/25頁(yè)
文件大?。?/td> 0K
描述： IC AMP AUDIO 2.3W STER+1 36TQFN
標(biāo)準(zhǔn)包裝： 2,500
類(lèi)型： D 類(lèi)
輸出類(lèi)型： 2-通道（立體聲）帶超低音器
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 2.3W x 3 @ 4 歐姆
電源電壓： 4.5 V ~ 5.5 V
特點(diǎn)： 消除爆音，短路保護(hù)和熱保護(hù)，關(guān)閉
安裝類(lèi)型： 表面貼裝
供應(yīng)商設(shè)備封裝： 36-TQFN 裸露焊盤(pán)（6x6）
封裝/外殼： 36-WFQFN 裸露焊盤(pán)
包裝： 帶卷 (TR)
MAX9706/MAX9707
3-Channel, 2.3W, Filterless Class D Amplifiers
with Active Crossover
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = HPVDD = 5V, GND = PGND = CPGND = 0V, SHDN = VDD, GAIN1 = GAIN2 = GND (SPKR = +9dB, HP = 0dB), HPS =
GND, FS0 = FS1 = GND (800Hz), MGAIN = float (-6dB), SYNC_IN = VDD (SSM), speaker load RL connected between OUT_+ and
OUT_-, unless otherwise noted, RL =
∞. Headphone load RLH connected between HPR/HPL to GND, RLH = ∞. CBIAS = 1F to GND,
C1 = 1F, C2 = 1F. TA = TMIN to TMAX, unless otherwise noted. Typical values at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GAIN2 = 0
GAIN1 = 0
9
GAIN2 = 0
GAIN1 = 1
10.5
GAIN2 = 1
GAIN1 = 0
12
Speaker Path Gain (Note 4)
GAIN2 = 1
GAIN1 = 1
13.5
dB
Channel-to-Channel Gain
Tracking
0.3
%
MGAIN = GND
-4.5
MGAIN = float
-6
MONO Gain Offset (Note 5)
MGAIN = VDD
-7.5
dB
Crosstalk
Right to left, left to right, fIN = 10kHz,
POUT = 1W
70
dB
Maximum Capacitive Load
CL
No sustained oscillations
200
pF
RL = 8
, POUT = 3 x 1W, f = 800Hz
90
Efficiency
η
RL = 4
, POUT = 3 x 1W, f = 800Hz
88
%
FFM, SYNC_IN = GND
955
1100
1270
FFM, SYNC_IN = float
1140
1340
1540
Class D Center Frequency
fOSC
SSM, SYNC_IN = VDD
1150
kHz
Class D Spreading Bandwidth
SSM mode, SYNC_IN = VDD
±50
kHz
SYNC_IN Frequency Lock Range
1000
1500
kHz
Output Offset Voltage
VOS
OUT_+ to OUT_-
14
mV
Into shutdown
47
Click-and-Pop Level
KCP
Peak voltage,
A-weighted, 32 samples
per second (Note 6)
Out of shutdown
50
dBV
CROSSOVER FILTERS
Cutoff Frequency Accuracy
(Note 7)
±15
%
FS0 = 0
FS1 = 0
800
FS0 = 0
FS1 = 1
1066.7
FS0 = 1
FS1 = 0
1600
Crossover Frequency
fXO
FS0 = 1
FS1 = 1
2133.3
Hz
Left-to-Right Cutoff Frequency
Tracking
±0.5
%
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