Datasheet > ATR4251C-PFQY

ATR4251C-PFQY

更新时间： 2024-02-20 09:26:58

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ATR4251C-PFQY 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	4 X 4 MM, QFN-24	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.07	商用集成电路类型：	CONSUMER CIRCUIT
解调类型：	AM/FM	JESD-30 代码：	S-XQCC-N24
长度：	4 mm	功能数量：	1
端子数量：	24	最高工作温度：	105 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装等效代码：	LCC24,.16SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
电源：	10 V	认证状态：	Not Qualified
座面最大高度：	1 mm	子类别：	Other Consumer ICs
最大压摆率：	17 mA	最大供电电压 (Vsup)：	11 V
最小供电电压 (Vsup)：	8 V	表面贴装：	YES
技术：	BICMOS	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	宽度：	4 mm
Base Number Matches：	1

3.4

FM/TV AGC

The IC is equipped with an AGC capability to prevent overdriving the amplifier in cases when the amplifier is operated with

strong antenna signals (for example, near transmitters).

It is possible to realize an external TV antenna amplifier with integrated AGC and external RF transistor. The bandwidth of

the integrated AGC circuit is 900MHz.

FM amplifier output FMOUT is connected to a capacitive voltage divider and the divided signal is applied to the AGC level

detector at pin AGCIN. This level detector input is optimized for low distortion. The rectified signal is compared against an

internal reference. The threshold of the AGC can be adjusted by adjusting the divider ratio of the external voltage divider. If

the threshold is reached, pin AGC1 opens an external transistor which controls the PIN diode current, this limits the amplifier

input signal level and prevents overdriving the FM amplifier.

ATR4251C [DATASHEET]

9258D–AUDR–08/14

1...3 4 567 8 9...21

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型号	品牌	描述	获取价格	数据表
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ATR4251-PFPY19	ATMEL	Consumer IC	获取价格
ATR4251-PFQY	ATMEL	Low-noise, High-dynamic-range Antenna Amplifier IC	获取价格