Rev. 4691GS–DECT–08/04

Features

Benefits

× 5 mm Package

Electrostatic sensitive device.

Observe precautions for handling.

Description

The ATR2807 is an RF building block. It is used as a 3.344 GHz output frequency local

oscillator. The QFN32-packaged IC includes an LO buffer, synthesizer together with

fully integrated VCO and supply voltage regulators.

Figure 1. Block Diagram

Table 1. Functional Block Description

Name

Description

REG

Voltage regulator

CP

Charge pump

PLL

Phase locked loop

PA

Buffer amplifiers for LO_OUT

VCO

Voltage-controlled oscillator

VTUNE

VREG

VS

PLL

VS

VCO

VS

CP

REG

CTRL

VS

PA

PA

LO OUT 1

PLL

CLK

VCO

CP

REG

PU PA

PU VCO

PU REG

LO OUT 2

OLE

PU PLL

SW_CLK

CTRL

LOGIC

GND

PLL

GND

VCO

GND

CP

GND

PA

VS

REG

SET

REG

3.3 GHz

LO + PLL-chip

ATR2807

Summary

Preliminary

Note: This is a summary document. A complete document

is available under NDA. For more information, please con-

tact your local Atmel sales office.