ATR2406_14 Datasheet, PDF (2/26 Pages) ATMEL Corporation – Low-IF 2.4-GHz ISM Transceiver

1. Description
The Atmel^® ATR2406 is a single chip RF transceiver intended for applications in the 2.4GHz ISM band.
The QFN32-packaged IC is a complete transceiver including image rejection mixer, low IF filter, FM demodulator, RSSI, TX
preamplifier, power-ramping generator for external power amplifier, integrated synthesizer, and a fully integrated VCO and
TX filter. No mechanical adjustment is necessary in production.
The RF transceiver offers a clock recovery function on-chip.
Figure 1-1. Block Diagram
REG_DEC VREG REG_CTRL VS_REG IREF
VREG_VCO
VCO
REG
AUX
REG
AUX
REG
LNA
IR-Mixer
BP
RX_IN
LIMITER
RSSI
DEMOD
VS_SYN
VS_IFD
VS_IFA
VS_RX/TX
RX_DATA
PA
TX_OUT
RAMP_OUT
RAMP
GEN
Divider
by 2
VCO
GAUSSIAN
PLL
FILTER
BUS
CTRL
LOGIC
RSSI
CLOCK
DATA
ENABLE
TEST1
TEST2
PU_REG
PU_TRX
RX_ON
TX_ON
nOLE
CP REF_CLK TX_DATA VTUNE
2
ATR2406 [DATASHEET]
4779Q–ISM–09/14