BA4424

更新时间： 2024-02-02 07:59:14

品牌	Logo	应用领域
罗姆 - ROHM		电视
页数	文件大小	规格书
7页	110K
描述
FM / TV front end

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技术参数
数据手册

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BA4424 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：	SIP
包装说明：	SIP-9	针数：	9
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.69
内置中频放大器：	NO	商用集成电路类型：	AUDIO TUNER
JESD-30 代码：	R-PSIP-T9	JESD-609代码：	e3/e2
长度：	21.8 mm	频带数量：	1
功能数量：	1	端子数量：	9
封装主体材料：	PLASTIC/EPOXY	封装代码：	SIP
封装形状：	RECTANGULAR	封装形式：	IN-LINE
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	7.2 mm	最大供电电压 (Vsup)：	6 V
最小供电电压 (Vsup)：	1.7 V	表面贴装：	NO
端子面层：	TIN/TIN COPPER	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	SINGLE
处于峰值回流温度下的最长时间：	10	宽度：	2.8 mm
Base Number Matches：	1

BA4424 数据手册

Audio ICs

BA4424N

FOperation notes

(1) Application circuit

(4) Mixer load

The example application circuit is the one which we rec-

ommend, however, when using it, verify characteristics

carefully.

In addition to an IFT, a resistive load can also be used for

the mixer output load. However, take care in this case as

the gain and intermodulation characteristics will be af-

fected.

If external circuit values are changed, set them with suffi-

cient margin to allow for deviations of both the Rohm IC

and external components in the quiescent and transient

characteristics. Also, please note that we have not com-

pletely verified any possible patent issues which the ap-

plication circuit may involve.

(5) Local oscillation circuit

To reduce spurious radiation, the oscillation level at Pin

8 (OSC) can be adjusted. This is done by adding a resis-

tor (several Ω to several tens of Ω) between Pin 8 and the

tank circuit. However, when setting the value, take care

regarding the oscillation margin as related to the tank cir-

cuit Q damp.

(2) Operating power supply voltage range

As long as the operating power supply voltage range is

not exceeded, the circuit functions are guaranteed within

the ambient operating temperature. Although we cannot

guarantee that the electrical characteristic values rated

under the rating conditions will be obtained, there will be

no abrupt changes in the characteristics within this

range.

(6) IF buffer amplifier

If the buffer amplifier pin is connected to another circuit

to use the buffer amplifier pin’s voltage, take care that a

reverse voltage never appears at the pin.

(7) Power supply RC filter

Do not insert a resistor between the V^CCpin (Pin 9) and

the MIX OUT pins (Pins 3 and 4), as a resistor inserted

in the power supply line will decrease sensitivity due to

the drop in the voltage. Regarding the resistor between

Pin 9 and the RFout pin (Pin 3), set the value so that the

voltage at Pin 3 is not lower than the voltage at Pin 2.

(3) RF amplifier

A band pass filter (BPF) is used in the ANT circuit, and

as the RF amplifier is base-grounded, a BPF with an out-

put impedance of 75Ω must be used. If a BPF without DC

cutoff is used, a coupling capacitor will be necessary.

Connect the bypass capacitor to the ground connection

of the input BPF. The pattern connecting these should be

such that supply current will absolutely not flow from Pin

5 (the ground line should be laid in the same fashion as

shown in the measurement circuit schematic).

1 2 3 456 7

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与BA4424相关器件

型号	品牌	描述	获取价格	数据表
BA4424N	ROHM	FM / TV front end	获取价格
BA4424N-DX	ROHM	Audio Tuner, 1-Band, PSIP9, SIP-9	获取价格
BA4425	ROHM	FM / TV front end	获取价格
BA4425F	ROHM	FM / TV front end	获取价格
BA4425F-DX	ROHM	Audio Tuner, 1-Band, PDSO8, SOP-8	获取价格
BA4425F-DXE1	ROHM	Audio Tuner, 1-Band, PDSO8, SOP-8	获取价格

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