ATA8203 Datasheet, PDF (3/46 Pages) ATMEL Corporation – Industrial UHF ASK/FSK Receiver

ATA8203/ATA8204/ATA8205
Figure 1-2. Block Diagram
CDEM
RSSI
SENS
AVCC
AGND
DGND
DVCC
FSK/ASK
Demodulator
and Data Filter
Dem_out
RSSI
Limiter out
RSSI
IF
Amp.
Sensitivity
reduction
4. Order
f₀ = 1 MHz
Data
Interface
Polling Circuit
and Control Logic
FE
CLK
LPF
f_g = 2.2 MHz
Standby
Logic
DATA
POLLING/_ON
DATA_CLK
MODE
IC_ACTIVE
LNAREF
LNA_IN
LNA
LNAGND
IF
Amp.
Poly-LPF
f_g = 7 MHz
f
:2
or :4
Loop
Filter
XTO
LC-VCO
f
:128
or :64
f
:2
or :3
XTAL2
XTAL1
3
9121B–INDCO–04/09