Datasheet > MAX7058

MAX7058

更新时间： 2023-12-20 18:44:17

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
13页	589K
描述
315MHz/390MHz双频ASK发送器

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中文翻译

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数据手册

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MAX7058 数据手册

EVALUATION KIT AVAILABLE

MAX7058

315MHz/390MHz Dual-Frequency ASK Transmitter

General Description

Features

The MAX7058 UHF transmitter alternately transmits ASK/

OOK data at 315MHz or 390MHz using a single crystal.

The MAX7058 has internal tuning capacitors at the output

of the power amplifier that can be programmed for match-

ing to the antenna or load. The MAX7058 can transmit

at a data rate up to 100kbps NRZ (50kbps Manchester

coded). Typical transmitted power into a 50Ω load is

+10dBm. The MAX7058 operates from +2.1V to +3.6V

and draws under 8.0mA of current. The standby current

is less than 1µA at room temperature. A 15MHz crystal

is used as the reference for 315MHz and 390MHz oper-

ation by selecting synthesizer-divide ratios of 21 and 26,

respectively.

● Switched 315MHz/390MHz Carrier Frequency Using

One Crystal

● +2.1V to +3.6V Single-Supply Operation

● ASK/OOK Modulation

● Internal Switched Capacitors for Optimum Dual-

Frequency Operation

● 8.0mA DC Current Drain (50% Duty Cycle OOK)

● 0.8µA Standby Current

● Small 4mm x 4mm, 24-Pin Thin QFN Package

The MAX7058 is available in a 4mm x 4mm, 24-pin thin

QFN package and is specified to operate in the -40°C to

+125°C automotive temperature range.

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

24 Thin QFN-EP*

(4mm x 4mm)

Applications

MAX7058ATG+

-40°C to +125°C

● Garage Door Openers

● RF Remote Controls

● Home Automation

● Wireless Sensors

● Security Systems

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

Pin Conﬁguration

Functional Block Diagram

TOP VIEW

24 23 22 21 20 19

N.C.

DVDD

FSEL

CAP1

CAP2

N.C.

CRYSTAL

OSCILLATOR

N.C.

17 XTAL1

16 XTAL2

15 AVDD

14 PAVDD

13 N.C.

DVDD

FSEL

CAP1

17 XTAL1

FREQUENCY

21 OR 26

CHARGE

PUMP

PFD

VCO

XTAL2

AVDD

MAX7058

EXPOSED

PADDLE

(GND)

DIGITAL

CONTROL

LOOP

FILTER

CAP2

N.C.

14 PAVDD

EP*

N.C.

ENVELOPE

SHAPING

10 11 12

MAX7058

N.C.

TQFN

*EP = EXPOSED PADDLE.

19-3206; Rev 1; 7/14

12 3 4 5 6 7...13

中文翻译

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