ATA5761 ATMEL Corporation, ATA5761 Datasheet - Page 2
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ATA5761
Manufacturer Part Number
ATA5761
Description
UHF Ask/fsk Receiver
Manufacturer
ATMEL Corporation
Datasheet
1.ATA5761.pdf
(41 pages)
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Figure 1-2.
2
ATA5760/ATA5761
Block Diagram
LNAGND
LNAREF
LNA_IN
CDEM
DGND
AGND
DVCC
AVCC
SENS
LNA
Rssi
fg = 2.2 MHz
f0 = 950 kHz/
and data filter
Poly-LPF
demodulator
fg = 7 MHz
FSK/ASK-
4. Order
1 MHz
LPF
RSSI IF
Amp.
IF
Amp.
Limiter out
f
:2
Sensitivity-
reduction
Dem_out
LC-VCO
f
Standby logic
Loop-
filter
:256
Polling circuit
control logic
FE
and
interface
Data -
XTO
CLK
IC_ACTIVE
DATA
POLLING/_ON
DATA_CLK
XTAL
4896D–RKE–08/08
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