T5743P3 ATMEL [ATMEL Corporation], T5743P3 Datasheet - Page 3

• Manufacturer Part Number: T5743P3
• Description: UHF ASK/FSK Receiver
• Manufacturer: ATMEL [ATMEL Corporation]

Pin Description (Continued)
Figure 3. Block Diagram
4569A–RKE–12/02
Pin
15
16
17
18
19
20
POLLING/_ON
DATA_CLK
LNAGND
MIXVCC
Symbol
LNA_IN
MODE
DGND
DVCC
DATA
CDEM
AGND
DGND
AVCC
SENS
LNA
RSSI
Function
Digital power supply
Selecting 433.92 MHz/315 MHz
Low: f
High: f
Bit clock of data stream
Digital ground
Selects polling or receiving mode
Low: receiving mode
High: polling mode
Data output/configuration input
and data filter
Demodulator
FSK/ASK-
4. Order
IF Amp
IF Amp
3 MHz
3 MHz
LPF
LPF
XT0
XT0
= 4.90625 MHz (USA)
= 6.76438 MHz (Europe)
Limiter out
Sensitivity
reduction
Dem_out
f
VCO
64
Standby logic
Polling circuit
control logic
FE
and
Data
interface
XTO
CLK
IC_ACTIVE
DATA
POLLING/_ON
TEST
DATA_CLK
MODE
LFGND
LFVCC
XTO
LF
DVCC
T5743
3