ATA5425-PLSW datasheet(6/100 Pages) ATMEL

6 / 100 page

4841D–WIRE–10/07

ATA5423/ATA5425/ATA5428/ATA5429

Figure 1-3.

Block Diagram

Key input 4 (can also be used to switch on the system (active low))

Key input 3 (can also be used to switch on the system (active low))

Key input 2 (can also be used to switch on the system (active low))

Key input 1 (can also be used to switch on the system (active low))

RX_ACTIVE

Indicates RX operation mode

Not connected

GND

Ground/backplane

Table 1-1.

Pin Description (Continued)

Symbol

Function

Signal

Processing

(Mixer

IF-filter

IF-amplifier

FSK/ASK

Demodulator,

Data filter

Data Slicer)

TX/RX - Data buffer

Control register

Status register

Polling circuit

Bit-check logic

Digital Control Logic

Power

Supply

Switches

Regulators

Wake-up

Reset

RF transceiver

Fractional-N

frequency

synthesizer

VS2

VAUX

VSOUT

VS1

433_N868

PWR_H

SDO_TMDO

IRQ

N_RESET

CLK

DEM_OUT

XTAL2

XTAL1

RSSI

CDEM

RF_IN

RX_TX2

RX_TX1

RF_OUT

R_PWR

DVCC

RX_ACTIVE

AVCC

GND

VSINT

LNA

SPI

XTO

Reset

RX/TX

switch

Frontend Enable

PA_Enable (ASK)

Demod_Out

FREF

FREQ

RX/TX

TX_DATA (FSK)

Microcontroller

interface

SCK

SDI_TMDI

TEST2

TEST1

PWR_ON

ATA5425-PLSW Datasheet(PDF) 6 Page - ATMEL Corporation

ATA5425-PLSW Datasheet(HTML) 6 Page - ATMEL Corporation

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