T2803-PLQ datasheet(2/28 Pages) ATMEL

Part #	T2803-PLQ

Description	2.4 GHZ WDECT/ISM SINGLE CHIP TRANSCEIVER

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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2

4572I–DECT–07/05

T2803

2.

Pin Configuration

Figure 2-1.

Pinning QFN48

Table 1-1.

Functional Block Description

Name

Description

AUX REG

Auxiliary voltage regulator

BBF

Baseband filter

CP

Charge pump

DAC

D/A converter for demodulator tuning

DEMOD

Demodulator

GF

Gaussian filter for transmit data

IF AMP1

1st intermediate frequency amplifier

IF AMP2

2nd intermediate frequency amplifier

IR MIXER

Image rejection mixer

PC

Programmable counter

PD

Phase detector

RAMP GEN

Ramp-signal generator

RC

Reference counter

RSSI

Received signal-strength indicator

TX DRIVER

Buffer amplifier for TX_OUT

TX/RX SWITCH

Switches VCO signal to IR MIXER respectively TX DRIVER

VCO

Voltage-controlled oscillator

VCO REG

Voltage regulator for VCO

CLOCK

DATA

ENABLE

REF_CLK

LD

PU_REG

VS_PLL

VREG

REG_CTRL

VS_REG

GND_CP

VS_CP

RAMP_OUT

IF_IN2

IF_IN1

VS_IF

TX_OUT

GND3

RF_IN2

RF_IN1

GND2

IF_TANK2

IF_TANK1

RSSI

1

2

3

4

5

6

7

8

9

10

11

12

13 14 15 16 17 18 19 20 21 22 23 24

36

35

34

33

32

31

30

29

28

27

26

25

48 47 46 45 44 43 42 41 40 39 38 37

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T2803-PLQ Datasheet(PDF) 2 Page - ATMEL Corporation

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