(VDD
參數(shù)資料
型號: MAX9814EVKIT+
廠商: Maxim Integrated Products
文件頁數(shù): 9/14頁
文件大小: 0K
描述: EVALUATION KIT FOR MAX9814
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1
放大器類型: AB 類
輸出類型: 1-通道(單聲道)
電源電壓: 2.7V ~ 5.5V
工作溫度: -40°C ~ 85°C
板類型: 完全填充
已用 IC / 零件: MAX9814
已供物品:
Microphone Amplifier with AGC and
Low-Noise Microphone Bias
Typical Operating Characteristics
(VDD = 5V, CCT = 470nF, CCG = 2.2F, VTH = VMICBIAS x 0.4, GAIN = VDD (40dB), AGC disabled, no load, RL = 10k
Ω, COUT = 1F,
TA = +25°C, unless otherwise noted.)
GAIN vs. FREQUENCY
MAX9814
toc01
FREQUENCY (Hz)
GAIN
(dB)
10k
1k
100
10
20
30
40
50
60
70
80
0
10
100k
GAIN = UNCONNECTED
GAIN = 0
GAIN = 1
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9814
toc02
FREQUENCY (Hz)
PSRR
(dB)
10k
1k
100
-70
-60
-50
-40
-30
-20
-10
0
-80
10
100k
VRIPPLE = 200mVP-P
MICBIAS POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9814
toc03
FREQUENCY (Hz)
PSRR
(dB)
10k
1k
100
-100
-90
-80
-70
-60
-50
-40
-30
-110
10
100k
VRIPPLE = 200mVP-P
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX9814
toc04
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(mA)
5.5
5.0
4.0
4.5
3.5
3.0
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
2.5
6.0
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX9814
toc05
SUPPLY VOLTAGE (V)
SHUTDOWN
CURRENT
(nA)
5.5
5.0
4.5
4.0
3.5
3.0
0.1
0.2
0.3
0.4
0.5
0
2.5
6.0
MICROPHONE BIAS VOLTAGE
vs. MICROPHONE BIAS SOURCE CURRENT
MAX9814
toc06
IMICBIAS (mA)
V
MICBIAS
VOLTAGE
(V)
25
20
15
10
5
0.5
1.0
1.5
2.0
2.5
0
030
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAX9814
toc07
FREQUENCY (Hz)
THD+N
(%)
10k
1k
100
0.1
1
10
0.01
10
100k
VOUT = 800mVRMS
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT VOLTAGE
MAX9814
toc08
OUTPUT VOLTAGE (VRMS)
THD+N
(%)
1.0
0.5
0.1
1
10
0.01
0
1.5
fIN = 300Hz, 1kHz,
and 3kHz
fIN = 10kHz
INPUT-REFERRED NOISE
vs. FREQUENCY
MAX9814
toc09
FREQUENCY (kHz)
INPUT-REFERRED
NOISE
V
RMS
/√
Hz)
10
1
0.1
100
10
0.01
100
1000
1
MICIN AC-COUPLED
TO GND
MAX9814
4
Maxim Integrated
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