Datasheet > T2803_05

T2803_05

更新时间： 2024-11-21 03:29:51

品牌	Logo	应用领域
爱特美尔 - ATMEL		ISM频段
页数	文件大小	规格书
28页	583K
描述
2.4 GHZ WDECT/ISM SINGLE CHIP TRANSCEIVER

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中文翻译

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数据手册

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T2803_05 数据手册

Features

•

Supply-voltage Range 3V to 4.6V (Regulated)

Auxiliary Voltage Regulator On-chip (3.2V to 4.6V)

Low Current Consumption

Few Low-cost External Components

No Mechanical Tuning Required

Supports Multiple Reference Clocks (10.368 MHz/13.824 MHz)

Fast Settling Synthesizer (864 kHz Channel Spacing)

TX Preamplifier with 3 dBm Output Power at 2.45 GHz

(4 Programmable Power Levels)

2.4 GHz

•

Ramp-signal Generator for Power Ramping and Power Control of

External SiGe Power Amplifier (T7024 and T7026)

WDECT/ISM

Single-chip

Transceiver

Electrostatic sensitive device.

Observe precautions for handling.

T2803

1. Description

The T2803 is an RF IC for low-power applications in the 2.45 GHz ISM band. The

QFN48-packaged IC is a complete transceiver including image rejection mixer, IF

amplifier, FM demodulator, baseband filter, RSSI, TX preamplifier, power-ramping

generator for power amplifiers, integrated synthesizer, fully integrated VCO and Gaus-

sian data filter for TX. No mechanical tuning is necessary in production.

Figure 1-1. Block Diagram

DEMOD

TANK

MIXER

OUT

IF_IN

IF_TANK

IF AMP 2

IF AMP 1

IR MIXER

BB_OUT

RF_IN

DEMOD

BB FILTER

RAMP_OUT

RAMP_SET

D/A

RAMP

GEN

RAMP

D/A

DEMOD DAC

RSSI

VCO

TX/RX

SWITCH

TX_DATA

CLOCK

DATA

ENABLE

3-WIRE

BUS

TX_OUT

: n

TX DRIVER

RX_ON

TX_ON

CTRL

LOGIC

PU_RX/TX

PU_PLL

AUX

REG

VCO

REG

: n

VREG_VCO

VS_VCO

VREG

VS_REG

OLE

REF_CLK

REG_CTRL VTUNE

GND_VCO

PU_REG

I_CPSW

Rev. 4572I–DECT–07/05

12 3 4 5 6 7...28

中文翻译

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