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參數(shù)資料
| 型號： | SSM2166SZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PREAMP AUDIO MONO MIC 14SOIC |
| 產(chǎn)品變化通告： | Material Change 25/Mar/2009 |
| 標準包裝： | 1 |
| 類型： | AB 類 |
| 輸出類型： | 1-通道（單聲道） |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 特點： | 麥克風 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 14-SOICN |
| 封裝/外殼： | 14-SOIC（0.154"，3.90mm 寬） |
| 包裝： | 標準包裝 |
| 產(chǎn)品目錄頁面： | 775 (CN2011-ZH PDF) |
| 其它名稱： | SSM2166SZ-REEL7DKR |
SSM2166
Data Sheet
Rev. E | Page 14 of 20
00357-
026
IC2
IC1
Figure 27. Evaluation Board Topside Silkscreen (Not to Scale)
00357-
027
Figure 28. Evaluation Board Topside Metallization (Not to Scale)
00357-
028
Figure 29. Evaluation Board Backside Metallization (Not to Scale)
EVALUATION BOARD EXAMPLES
To illustrate how easy it is to program the SSM2166, a practical
example is provided. The SSM2166 was used to interface an
electret-type microphone to a postamplifier. The evaluation
board or the circuit configuration shown in Figure 26 can be
used. The signal from the microphone was measured under
actual conditions to vary from 1 mV to 15 mV. The postamplifier
requires no more than 500 mV at its input. The required gain
from the SSM2166 is, therefore
GTOTAL = 20 × log(500/15) = 30 dB
The input buffer gain is set to 20 dB, and the VCA gain is adjusted
to 10 dB. The limiting or rotation point is set at 500 mV output.
A 2:1 compression ratio and a noise gate threshold that operates
below 100 V is also used. These objectives are summarized in
Table 5. The transfer characteristic implemented is illustrated in
Table 5. Objective Specifications
Parameter
Value
Input Range
1 mV to 15 mV
Output Range
To 500 mV
Limiting Level
500 mV
Compression
2:1
Buffer Gain
20 dB
VCA Gain
10 dB
Noise Gate
100 V
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相關代理商/技術參數(shù) |
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| SSM2167-1RM-R2 | 制造商:Rochester Electronics LLC 功能描述:MICROPHONE PREAMP W/ 18DB FIXED GAIN - Bulk 制造商:Analog Devices 功能描述:IC PREAMP AUDIO |
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