Datasheet > BA3834FE2

BA3834FE2

更新时间： 2024-02-05 00:26:34

品牌	Logo	应用领域
罗姆 - ROHM		LTE 光电二极管有源滤波器
页数	文件大小	规格书
17页	812K
描述
Continuous Time Filter, 1 Func, Resistor Programmable, Bandpass, BIPOLAR, PDSO18, LEAD FREE, SOP-18

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BA3834FE2 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SOIC
包装说明：	SOP, SOP18,.3	针数：	18
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.26
有源滤波器类型：	CONTINUOUS TIME FILTER	中心频率或截止频率最大范围：	14.4 kHz
中心频率或截止频率最小范围：	0.068 kHz	JESD-30 代码：	R-PDSO-G18
JESD-609代码：	e2	长度：	11.2 mm
功能数量：	1	端子数量：	18
最高工作温度：	75 °C	最低工作温度：	-25 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装等效代码：	SOP18,.3	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
电源：	5 V	认证状态：	Not Qualified
响应：	BANDPASS	座面最大高度：	1.9 mm
子类别：	Active Filters	最大供电电流 (Isup)：	15 mA
最大供电电压 (Vsup)：	6.5 V	最小供电电压 (Vsup)：	4.5 V
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	BIPOLAR	温度等级：	COMMERCIAL EXTENDED
端子面层：	Tin/Copper (Sn/Cu)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	10	传递特性：	RESISTOR PROGRAMMABLE
宽度：	5.4 mm	Base Number Matches：	1

BA3834FE2 数据手册

zCautions on use (BA3834F)

(1) Numbers and data in entries

Numbers and data in entries are representative design values and are not guaranteed values of the items.

(2) Example application circuit

Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to verify

circuit characteristics for your particular application. Modification of constants for other externally connected circuits may cause

variations in both static and transient characteristics for external components as well as this Rohm IC. Allow for sufficient margins

when determining circuit constants.

(3) Absolute maximum ratings

Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr), may

result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when such

damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at times where the

absolute maximum ratings may be exceeded.

(4) GND potential

Ensure a minimum GND pin potential in all operating conditions. Make sure that no pins are at a voltage below the GND at any

time, regardless of whether it is a transient signal or not.

(5) Thermal design

Perform thermal design, in which there are adequate margins, by taking into account the power dissipation (Pd) in actual states of

use.

(6) Short circuit between terminals and erroneous mounting

Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other components

on the circuits, can damage the IC.

(7) Operation in strong electromagnetic field

Using the ICs in a strong electromagnetic field can cause operation malfunction.

(8) Frequency characteristics

(11) Recommended operating ranges

The frequency characteristics of this IC are determined by the

resistor connected between the R_REFterminal and GND. For

the specification conditions, the value of this resistor is 100kΩ.

If it is necessary to set the frequency characteristics

accurately, use a variable resistor

Provided that the IC is operated within the recommended

operating conditions and the recommended temperature

range, the basic circuit functions are guaranteed. Within

these ranges, ratings for electrical characteristics for

conditions other than those spec cannot be guaranteed, but

the basic function of the band pass filter will be maintained.

(12) Output offset voltage

Note: all bands will shift together.

(9) Load characteristics

To convert the bias sense output signal to the GND sense

signal, the IC performs a V / I conversion, and then an I /V

conversion using a 10kΩ resistor (Typ.) for the output. The

AOUT can drive a CMOS load. (e.g. Microprocessor input

port) but if it is connected to a circuit with low input impedance,

it may cause the output level to drop.

The relationship between the output offset voltage and the

output selection cycle (cycle time) for this IC is shown in

Fig.16. The maximum output offset voltage of 150mV that is

given in the electrical characteristics table is under the

condition that Ts = 200ms.

When Ts is greater than 50ms, the graph of the output offset

voltage is a straight line at 150mV. When Ts is below 50ms,

can be sensitive to transient characteristics of the peak hold

circuit, the shorter the cycle, the larger the output offset

voltage is. Furthermore, the output offset voltage may shift

due to soldering or other temperature stresses. Therefore,

when setting the spectral analyzer light level, take into

consideration the points given above and make sure that the

spectral analyzer light does not light up during quiescent

periods. Use the chart below as a guide and, if necessary,

leave an even a larger margin.

(10) External resistor for the control pin

When using a common port for the output select control and

FL drive, you must add a diode and resistor as shown in Fig.

15 to prevent the FL drive “L” voltage from damaging the IC.

BA3834F

Fig. 15

In this case, the “L” voltage applied to the internal comparator

input terminal V

is given by:

R1 +R

R1+R2+R

V1 =

× VREF

To maintain a noise margin of at least 2.5V with respect to the

comparator threshold level V^ref, the representative values for

ref, R

and R

are 1.5V, 20kΩ, and 10kΩ respectively. This

20kΩ+R

20kΩ+20kΩ+R

gives :

× 1.5V+0.25V ＜ 1.5V

And from this, the following condition is obtained :R < 30kΩ

In this case, the “L” level voltage V2 for the IC will be :

V2 < 0.75V

Fig.16

13/16

1...10 11 121314 15 16 17

中文翻译

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BA3834FE2 替代型号

型号	品牌	替代类型	描述	数据表
BA3834F	ROHM	功能相似	Band-pass filter for spectrum analyzer

与BA3834FE2相关器件

型号	品牌	获取价格	描述	数据表
BA3834F-E2	ROHM	获取价格	CONTINUOUS TIME FILTER, RESISTOR PROGRAMMABLE, BANDPASS, PDSO18, LEAD FREE, SOP-18
BA3834FT1	ROHM	获取价格	SWITCHED CAPACITOR FILTER, BANDPASS, PDSO14, SOP-14
BA3834F-T1	ROHM	获取价格	Switched Capacitor Filter, 1 Func, Bandpass, PDSO18, SOP-18
BA3834FT2	ROHM	获取价格	SWITCHED CAPACITOR FILTER, BANDPASS, PDSO14, SOP-14
BA3834F-T2	ROHM	获取价格	SWITCHED CAPACITOR FILTER, BANDPASS, PDSO14, SOP-14
BA3834S	ROHM	获取价格	Band-pass filter for spectrum analyzer
BA3835	ROHM	获取价格	Switched Capacitor Filter, 1 Func, Bandpass, PDIP14, DIP-14
BA3835F	ROHM	获取价格	Band-pass filter for spectrum analyzer
BA3835F_11	ROHM	获取价格	Silicon Monolithic Integrated Circuit
BA3835FE2	ROHM	获取价格	SWITCHED CAPACITOR FILTER, BANDPASS, PDSO14, SOP-14

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