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参数资料
| 型号： | MAX9706ETX+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 19/25页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO 2.3W STER+1 36TQFN |
| 标准包装： | 2,500 |
| 系列： | DirectDrive® |
| 类型： | D 类 |
| 输出类型： | 2-通道（立体声）带立体声耳机和超低音器 |
| 在某负载时最大输出功率 x 通道数量： | 2.3W x 3 @ 4 欧姆; 95mW x 2 @ 16 欧姆 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 特点： | 消除爆音，短路保护和热保护，关闭 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 36-TQFN 裸露焊盘（6x6） |
| 封装/外壳： | 36-WFQFN 裸露焊盘 |
| 包装： | 带卷 (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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