參數資料
| 型號： | ADMP421BCEZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 10/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | MIC MEMS OMNI-DIR DGTL 5LGA |
| 標準包裝： | 5,000 |
| 系列： | ADMP421 |
| 類型： | MEMS（硅） |
| 輸出類型： | 數字，PDM |
| 方向： | 全向 |
| 頻率范圍： | 100Hz ~ 15kHz |
| 靈敏度： | -26dB ±3dB |
| 信噪比： | 61dB |
| 電壓 - 額定： | 1.8 ~ 3.3V |
| 電流 - 電源： | 650µA |
| 端口位置： | 底部 |
| 密封等級： | 無 |
| 端子： | 表面貼裝型 |
| 尺寸/尺寸： | 4.00mm L x 3.00mm W |
| 高度（最大）： | 1.10mm |
| 形狀： | 矩形 |
| 包裝： | 帶卷 (TR) |
Data Sheet
ADMP421
Rev. D | Page 3 of 16
SPECIFICATIONS
TA = 25°C, VDD = 1.8 V, CLK = 2.4 MHz, unless otherwise noted. All minimum and maximum specifications are guaranteed. Typical
specifications are not guaranteed.
Table 1.
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
PERFORMANCE
Directionality
Omni
Sensitivity1
1 kHz, 94 dB SPL
29
26
23
dBFS
Signal-to-Noise Ratio
SNR
20 kHz bandwidth, A-weighted
61
dBA
Equivalent Input Noise
EIN
20 kHz bandwidth, A-weighted
33
dBA SPL
Dynamic Range
Derived from EIN and maximum acoustic input
87
dB
Frequency Response2
Low frequency 3 dB point
100
Hz
High frequency 3 dB point
15
kHz
Deviation limits from flat response within
pass band
3/+2
dB
Total Harmonic Distortion
THD
105 dB SPL
3
%
Power Supply Rejection
PSR
217 Hz, 100 mV p-p square wave
superimposed on VDD = 1.8 V
80
dBFS
Maximum Acoustic Input
Peak
120
dB SPL
INPUT CHARACTERISTICS
Clock Frequency
CLK
1.0
2.43
3.3
MHz
Clock Duty Ratio
Clock frequency of 2.4 MHz or less
40
60
%
Input Voltage High
VIH
0.65 × VDD
V
Input Voltage Low
VIL
0.35 × VDD
V
OUTPUT CHARACTERISTICS
Output Voltage High
VOH
ILOAD = 0.5 mA
0.7 × VDD
VDD
V
Output Voltage Low
VOL
ILOAD = 0.5 mA
0
0.3 × VDD
V
Latency
<30
s
Wake-Up Time
From sleep mode, power on
10
ms
POWER SUPPLY
Supply Voltage
VDD
1.8
3.3
V
Supply Current
IS
Normal mode
650
A
Sleep mode4
50
A
1
Relative to the rms level of a sine wave with positive amplitude equal to 100% 1s density and negative amplitude equal to 0% 1s density.
2
3
The microphone operates at any clock frequency between 1.0 MHz and 3.3 MHz. Some specifications may not be guaranteed at frequencies other than 2.4 MHz.
4
The microphone enters sleep mode when the clock is turned off or the clock frequency is less than 1 kHz.
OBSOLETE
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADMP421BCEZ-RL7 | 功能描述:MIC MEMS OMNI-DIR DGTL 5LGA RoHS:是 類別:音頻產品 >> 麥克風 系列:ADMP421 產品目錄繪圖:SPM04xxHx(5,xH)-xB SP Series_FTPRNT-5 標準包裝:1 系列:SiSonic™ 類型:MEMS（硅） 輸出類型:模擬 方向:全向 頻率范圍:100Hz ~ 10kHz 靈敏度:-42dB ±3dB 信噪比:59dB 阻抗:100 歐姆 電壓 - 額定:1.5 ~ 3.6V 電流 - 電源:250µA 端口位置:頂部 密封等級:無 端子:表面貼裝型 尺寸/尺寸:4.72mm L x 3.76mm W 高度（最大）:1.35mm 形狀:矩形 包裝:Digi-Reel® 產品目錄頁面:2669 (CN2011-ZH PDF) 其它名稱:423-1131-6 |
| ADMP421X | 制造商:Analog Devices 功能描述: |
| ADMP441 | 制造商:Analog Devices 功能描述:MIC MEMS OMNI-DIR 9LGA 制造商:Analog Devices 功能描述:MIC, MEMS, OMNI-DIR, 9LGA |
| ADMP441_1209 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Omnidirectional Microphone with Bottom Port and I2S Digital Output |
| ADMP441ACEZ | 制造商:Analog Devices 功能描述:MIC, MEMS, OMNI-DIR, 9LGA; Supply Voltage Range:1.8V to 3.3V; Control Interface:Serial; Audio IC Case Style:LGA; No. of Pins:9; Operating Temperature Min:-40C; Operating Temperature Max:85C; MSL:MSL 5 - 48 hours; SVHC:No SVHC ;RoHS Compliant: Yes 制造商:Analog Devices 功能描述:MIC, MEMS, OMNI-DIR, 9LGA; Supply Voltage Range:1.8V to 3.3V; Control Interface:Serial; Audio IC Case Style:LGA; No. of Pins:9; Operating Temperature Min:-40C; Operating Temperature Max:85C; MSL:-; SVHC:No SVHC (19-Dec-2012); ;RoHS Compliant: Yes |
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