ATA5824

更新时间： 2024-01-21 10:01:18

品牌	Logo	应用领域
爱特美尔 - ATMEL		/
页数	文件大小	规格书
98页	1355K
描述
UHF ASK/FSK Transceiver

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技术参数
数据手册

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ATA5824 技术参数

是否Rohs认证：	不符合	生命周期：	Active
Reach Compliance Code：	unknown	风险等级：	5.15
JESD-30 代码：	S-PQCC-N48	JESD-609代码：	e0
湿度敏感等级：	2	端子数量：	48
最高工作温度：	105 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCN
封装等效代码：	LCC48,.27SQ,20	封装形状：	SQUARE
封装形式：	CHIP CARRIER	电源：	2.5/5 V
认证状态：	Not Qualified	子类别：	Other Telecom ICs
表面贴装：	YES	温度等级：	INDUSTRIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	NO LEAD
端子节距：	0.5 mm	端子位置：	QUAD
Base Number Matches：	1

ATA5824 数据手册

ATA5823/ATA5824

4. Typical Car Application for Bi-directional RKE

Figure 4-1. Typical Car Application for Bi-directional RKE with 10 dBm TX Power, 433.92 MHz

SAW filter

L₄

L₃

C₇

C₆

C₁₁

CDEM

RSSI

TEST3

SCK

RF_IN

SDI_TMDI

SDO_TMDO

CLK

AVCC

C₅

Microcontroller

433_N868

ATA5823/ATA5824

R₁

R_PWR

PWR_H

RF_OUT

IRQ

L₂

POUT

50 Ω

connector

VSINT

VCC

VSS

C₈

L₁

XTAL2

RF_OUT

C₉

C₁₀

13.25311 MHz

C₃

C₁

C₂

C₄

V_CC= 4.4 V ... 5.25 V

Figure 4-1 shows a typical 433.92 MHz V_CC= 4.4V to 5.25V RKE car application. The external

components are 11 capacitors, 1 resistor, 4 inductors, a SAW filter and a crystal. C₁, C₃and C₄

are 68 nF voltage supply blocking capacitors. C₂is a 2.2 µF supply blocking capacitor for the

internal voltage regulator. C₅is a 10 nF supply blocking capacitor. C₆is a 15 nF fixed capacitor

used for the internal quasi-peak detector and for the high-pass frequency of the data filter. C₇to

₁₁are RF matching capacitors in the range of 1 pF to 33 pF. L₂to L₄are matching inductors of

about 5.6 nH to 56 nH. A load capacitor for the crystal of 9 pF is integrated. R₁is typically 22 kΩ

and sets the output power at RF_OUTto about 10 dBm. Since a quarter wave or PCB antenna,

which has high efficiency and wideband operation, is typically used here, it is recommended to

use a SAW filter to achieve high sensitivity in case of powerful out-of-band blockers. L₁, C₁₀and

C₉together form a low-pass filter, which is needed to filter out the harmonics in the transmitted

signal to meet regulations.

4829C–RKE–09/05

1...4 5 678 9 10...98

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