參數資料
型號： MAX9751
廠商： Maxim Integrated Products, Inc.
英文描述： 2.6W Stereo Audio Power Amplifiers and DirectDrive Headphone Amplifiers
中文描述： 2.6W立體聲音頻功率放大器和DirectDrive®耳機放大器
文件頁數： 3/18頁
文件大小： 537K
代理商： MAX9751
M
500mW, Low EMI, Filterless,
Class D Audio Amplifier
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= PV
DD
=
SHDN
= 3.3V, GND = PGND = 0V, SYNC = GND (FFM), R
L
= 8
, R
L
connected between OUT+ and OUT-, T
A
=
T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1, 2)
Note 1:
All devices are 100% production tested at +25°C. All temperature limits are guaranteed by design.
Note 2:
Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For R
L
= 6
, L = 47μH.
For R
L
= 8
, L = 68μH. For R
L
= 16
, L = 136μH.
Note 3:
PSRR is specified with the amplifier inputs connected to GND through C
IN
.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
88
86
91
89
1100
1450
MAX
UNITS
FFM
SSM
FFM
SSM
BW = 22Hz
to 22kHz
Signal-to-Noise Ratio
SNR
V
OUT
= 1.8V
RMS
A-weighted
dB
SYNC = GND
SYNC = float
980
1280
1220
1620
Oscillator Frequency
f
OSC
SYNC = V
DD
(SSM mode)
1220
±
120
kHz
SYNC Frequency Lock Range
Efficiency
DIGITAL INPUTS (
SHDN
, SYNC)
800
2000
kHz
%
η
P
OUT
= 300mW, f
IN
= 1kHz
85
V
IH
V
IL
2
Input Thresholds
0.8
±
1
±
5
V
SHDN
Input Leakage Current
SYNC Input Current
μA
μA
Typical Operating Characteristics
(V
DD
= 3.3V, V
SYNC
= GND, T
A
= +25°C, unless otherwise noted.)
0.001
10
100k
10k
100
1k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
1
V
DD
= +5V
R
L
= 8
0.1
0.01
M
FREQUENCY (Hz)
T
P
OUT
= 300mW
P
OUT
= 125mW
0.001
10
100k
10k
100
1k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
1
V
DD
= +3.3V
R
L
= 8
0.1
0.01
M
FREQUENCY (Hz)
T
P
OUT
= 300mW
P
OUT
= 125mW
0.001
10
100k
10k
100
1k
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
1
V
DD
= +3.3V
R
L
= 8
P
OUT
= 125mW
0.1
0.01
M
FREQUENCY (Hz)
T
SSM MODE
FFM MODE
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相關代理商/技術參數
參數描述
MAX9751ETI+ 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9751ETI+T 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9751EUI 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX9752AETI+ 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9752AETI+T 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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