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參數資料
| 型號： | MAX9814EVKIT+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 11/14頁 |
| 文件大小： | 0K |
| 描述： | EVALUATION KIT FOR MAX9814 |
| 產品培訓模塊： | 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： | 板 |
Microphone Amplifier with AGC and
Low-Noise Microphone Bias
HOLD AND RELEASE TIME
MAX9814
toc19
40ms/div
VMICOUT
500mV/div
CCT = 47nF
A/R = VDD
0V
HOLD AND RELEASE TIME
MAX9814
toc20
100ms/div
VMICOUT
500mV/div
CCT = 47nF
A/R = UNCONNECTED
0V
Pin Description
PIN
TDFN
NAME
FUNCTION
1CT
Timing Capacitor Connection. Connect a capacitor to CT to control the Attack and Release times
of the AGC.
2
SHDN
Active-Low Shutdown Control
3
CG
Amplifier DC Offset Adjust. Connect a 2.2F capacitor to GND to ensure zero offset at the output.
4, 11
N.C.
No Connection. Connect to GND.
5VDD
Power Supply. Bypass to GND with a 1F capacitor.
6
MICOUT
Amplifier Output
7
GND
Ground
8
MICIN
Microphone Noninverting Input
9A/R
Tri-Level Attack and Release Ratio Select. Controls the ratio of attack time to release time for the
AGC circuit.
A/R = GND: Attack/Release Ratio is 1:500
A/R = VDD: Attack/Release Ratio is 1:2000
A/R = Unconnected: Attack/Release Ratio is 1:4000
10
GAIN
Tri-Level Amplifier Gain Control.
GAIN = VDD, gain set to 40dB.
GAIN = GND, gain set to 50dB.
GAIN = Unconnected, uncompressed gain set to 60dB.
12
BIAS
Amplifier Bias. Bypass to GND with a 0.47F capacitor.
13
MICBIAS
Microphone Bias Output
14
TH
AGC Threshold Control. TH voltage sets gain control threshold. Connect TH to MICBIAS to disable
the AGC.
—
EP
Exposed Pad. Connect the TDFN EP to GND.
Typical Operating Characteristics (continued)
(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.)
MAX9814
6
Maxim Integrated
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相關代理商/技術參數 |
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|---|---|
| MAX9814EVKIT+ | 功能描述:音頻 IC 開發工具 MAX9814 Eval Kit RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| MAX981CPA | 功能描述:校驗器 IC Single Comparator / Reference RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX981CPA+ | 功能描述:校驗器 IC Single Comparator / Reference RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX981CSA | 功能描述:校驗器 IC RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX981CSA+ | 功能描述:校驗器 IC Single Comparator / Reference RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
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