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參數(shù)資料
| 型號： | BA3826 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | Band-pass filter for spectrum analyzer |
| 中文描述： | 帶通濾波器的頻譜分析儀 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 115K |
| 代理商： | BA3826 |
579
Audio ICs
BA3826S
(2)
This circuit extracts the required frequency range from
the input signal and amplifies it.
The center frequency is determined by the value of the
current flowing through the resistor connected to pin 14.
Q is set to 3.5 (Typ.).
Due to the characteristics of the band-pass filter circuit,
the circuit has a transition rise and fall characteristic. Due
to the transition rise characteristic, five input cycles are
required until peak output is reached.
When RESET is input, a built-in circuit cancels the fall
transition characteristic (input the reset signal for 0.5ms).
Band-pass filter circuit
(3)
The DET circuit detects the signal selected by the band
pass filter and performs peak hold.
The RESET Driver discharges the charge stored in the
capacitor. After the RESET input is released, the RESET
Driver discharges continuously for 14ms.
DET circuit
(4)
Timing
1) RESET timing
The RESET input is used as the RESET signal for the
band-pass filter circuit and the DET circuit. The setting
time is 0.5ms min.
When performing a RESET input, disable both the Lin
and Rin inputs. The synchronous shift in this case must
be
0.1ms max.
2) Output select timing
The audio input signal is not accepted when the RESET
input and L (R) inputs are low. There are no particular re-
strictions on the select input for the various frequencies,
but there are delay times until the peak voltage is settles
(see (a) and (b) below). Accordingly, set the read timing
for the DET signal after the longer of the delay times in
(a) and (b).
(a)
For the band-pass filter, a sampling time of at least
5 cycles is required due to the transition rise characteris-
tic.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BA3826S | 制造商:ROHM 制造商全稱:Rohm 功能描述:Band-pass filter for spectrum analyzer |
| BA3828F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| BA3830F | 制造商:ROHM 制造商全稱:Rohm 功能描述:Silicon Monolithic Integrated Circuit |
| BA3830F_11 | 制造商:ROHM 制造商全稱:Rohm 功能描述:Silicon Monolithic Integrated Circuit |
| BA3830F-E2 | 功能描述:有源濾波器 BAND-PASS FILTER MONAURAL RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
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