T5744 Просмотр технического описания (PDF) - Atmel Corporation

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T5744

UHF ASK/FSK Receiver

Atmel Corporation 

Pin Configuration

Figure 2. Pinning SO20 and SSO20

Pin Description

Pin

Symbol

1

BR_0

2

BR_1

3

CDEM

4

AVCC

5

AGND

6

DGND

7

MIXVCC

8

LNAGND

9

LNA_IN

10

n.c.

11

LFVCC

12

LF

13

LFGND

14

XTO

15

DVCC

16

MODE

17

RSSI

18

TEST

19

ENABLE

20

DATA

Function

Baud rate select LSB

Baud rate select MSB

Lower cut-off frequency data filter

Analog power supply

Analog ground

Digital ground

Power supply mixer

High-frequency ground LNA and mixer

RF input

Not connected

Power supply VCO

Loop filter

Ground VCO

Crystal oscillator

Digital power supply

Selecting 433.92 MHz /315 MHz

Low: 315 MHz (USA)

High: 433.92 MHz (Europe)

Output of the RSSI amplifier

Test pin, during operation at GND

Selecting operation mode

Low: sleep mode

High: receiving mode

Data output

2 T5744

4521B–RKE–01/03

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