Datasheet > ATA5830N

ATA5830N

更新时间： 2022-02-26 13:03:31

品牌	Logo	应用领域
爱特美尔 - ATMEL		/
页数	文件大小	规格书
27页	1001K
描述
UHF ASK/FSK Transceiver

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ATA5830N 数据手册

3.5

Power Management

3.5.1

Overview

The IC has four power domains:

• VS – The unregulated battery voltage input.

• DVCC – The internally regulated digital supply voltage. Typical value is 1.35V.

• AVCC – The internally regulated RF frontend and XTO supply. Typical value is 1.85V.

• VS_PA – The power amplifier supply has two application modes depending on the battery

voltage (VS) range:

– Connected externally to the battery in 3V applications.

– Generated by an internal regulator in 5V applications.

The AT5830 can be operated from V_S= 1.9V to 3.6V (3V application) and from V_S= 4.5V to

5.5V (5V application). For TX output powers above 10dBm applied in high band frequency

ranges 836MHz to 928MHz, the minimum battery voltage is limited to 2.1V.

Figure 3-1. Power Supply Management

2.2µF

220nF

22nF

AVCC

DVCC

Power Management (common reference, Voltage Monitor

VS_PA regulator AVCC regulator DVCC regulator

Data Bus

RFIN_LB

RFIN_HB

AVR CPU, AVR peripherals,

Memories, RxDSP, TxDSP

and FRC/SRC

SPDT_RX

SPDT_ANT

ANT_TUNE

SPDT_TX

RF frontend

and XTO

RF_OUT

Port B

SPI

Port C

VS_PA

(only 3V operation)

68nF

PB7

PB4

PC5

PC1

XTAL1

XTAL2

...

... Level shifter

Atmel ATA5830/ATA5830N

9208DS–RKE–07/11

1...21 22 232425 26 27

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