参数资料
型号: MAX9706ETX+T
厂商: Maxim Integrated Products
文件页数: 20/25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
4
_______________________________________________________________________________________
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
HEADPHONE AMPLIFIERS (MAX9706) (HPS = VDD)
RL = 32
35
50
Output Power
POUT
HPVDD = 3.3V to 5V,
TA = +25°C, THD+N = 1%
(Notes 2, 7)
RL = 16
95
mW
RL = 32
0.02
Total Harmonic Distortion Plus
Noise
THD+N
VOUT = 1VRMS, f = 1kHz,
bandwidth = 22Hz to
22kHz
RL = 16
0.04
%
Bandwidth =
22Hz to 22kHz
96
Signal-to-Noise Ratio
SNR
VOUT = 1VRMS
A-weighted
100
dB
HPVDD = 3V to 5.5V
70
90
f = 1kHz, 100mVP-P ripple (Note 3)
80
Power-Supply Rejection Ratio
PSRR
f = 20kHz, 100mVP-P ripple (Note 3)
65
dB
GAIN2 = 0
0
Headphone Path Gain (Note 8)
GAIN2 = 1
3
dB
Output Offset Voltage
VOSHP
HP_ to GND, TA = +25°C
±0.7
±3
mV
Crosstalk
HPL to HPR, HPR to HPL, fIN = 1kHz,
POUT = 32mW, RL = 32
-60
dB
Slew Rate
0.5
V/s
Maximum Capacitive Load
CL
No sustained oscillations
300
pF
HPS Pullup Impedance
600
k
Debounce Time
65
ms
Output Impedance in Shutdown
HPS = GND or
SHDN = GND
1.4
k
Charge-Pump Switching
Frequency
fCP
fOSC / 2
kHz
Into shutdown
52
Click-and-Pop Level
KCP
Peak voltage,
A-weighted, 32 samples
per second (Note 6)
Out of
shutdown
52
dBV
LINE-LEVEL MONO OUTPUT (MONO_OUT)
MONO_OUT Signal-Path Gain
0dB
Output Impedance
0.1
Maximum Output Level
RL = 10k
1VRMS
Total Harmonic Distortion Plus
Noise
THD+N
VOUT = 1VRMS, fIN = 100Hz, RL = 10k
,
bandwidth = 22Hz to 22kHz
0.01
%
Maximum Capacitive Load
CL
No sustained oscillations
200
pF
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