ATA5723 ATMEL Corporation, ATA5723 Datasheet - Page 3

• Manufacturer Part Number: ATA5723
• Description: Ata5723 Uhf Ask/fsk Receiver
• Manufacturer: ATMEL Corporation

Figure 1-2.
9106D–RKE–02/08
Block Diagram
LNAGND
LNAREF
LNA_IN
CDEM
DGND
AGND
DVCC
SENS
AVCC
RSSI
LNA
RSSI
and Data Filter
Demodulator
f
f
g
g
f
Poly-LPF
0
FSK/ASK
4. Order
= 2.2 MHz
= 7 MHz
= 1 MHz
LPF
Amp.
RSSI
Amp.
IF
IF
Limiter out
f
Sensitivity
reduction
Dem_out
or :4
:2
LC-VCO
Loop
Filter
f
ATA5723/ATA5724/ATA5728
or :64
Standby
:128
and Control Logic
Logic
FE
Polling Circuit
Interface
Data
f
XTO
CLK
or :3
:2
DATA
POLLING/_ON
DATA_CLK
MODE
IC_ACTIVE
XTAL2
XTAL1
3