ATA8205 Datasheet PDF - ATMEL Corporation

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ATA8205
ATMEL Corporation

Part Number ATA8205
Description (ATA8203 - ATA8205) Industrial UHF ASK/FSK Receiver
Page 30 Pages


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ATA8203/ATA8204/ATA8205
Industrial UHF ASK/FSK Receiver
DATASHEET
Features
Frequency receiving range of (3 versions)
f0 = 312.5MHz to 317.5MHz or
f0 = 431.5MHz to 436.5MHz or
f0 = 868MHz to 870MHz
30dB image rejection
Receiving bandwidth
BIF = 300kHz for 315MHz/433MHz version
BIF = 600kHz for 868MHz version
Fully integrated LC-VCO and PLL loop filter
Very high sensitivity with power matched LNA
Atmel® ATA8203/ATA8204:
–107dBm, FSK, BR_0 (1.0Kbit/s to 1.8Kbit/s), Manchester, BER 10E-3
–113dBm, ASK, BR_0 (1.0Kbit/s to 1.8Kbit/s), Manchester, BER 10E-3
Atmel ATA8205:
–105dBm, FSK, BR_0 (1.0Kbit/s to 1.8Kbit/s), Manchester, BER 10E-3
–111dBm, ASK, BR_0 (1.0Kbit/s to 1.8Kbit/s), Manchester, BER 10E-3
High system IIP3
–18dBm at 868MHz
–23dBm at 433MHz
–24dBm at 315MHz
System 1-dB compression point
–27.7dBm at 868MHz
–32.7dBm at 433MHz
–33.7dBm at 315MHz
High large-signal capability at GSM band (blocking –33dBm at +10MHz,
IIP3 = –24dBm at +20MHz)
Logarithmic RSSI output
XTO start-up with negative resistor of 1.5kΩ
5V to 20V automotive compatible data interface
Data clock available for manchester and bi-phase-coded signals
Programmable digital noise suppression
Low power consumption due to configurable polling
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Temperature range –40°C to +85°C
ESD protection 2kV HBM, All pins
Communication to microcontroller possible using a single bi-directional data line
Low-cost solution due to high integration level with minimum external circuitry requirements
Supply voltage range 4.5V to 5.5V
Benefits
Low BOM list due to high integration
Use of low-cost 13MHz crystal
Lowest average current consumption for application due to self polling feature
Reuse of Atmel ATA5743 software
World-wide coverage with one PCB due to 3 versions are pin compatible
2 ATA8203/ATA8204/ATA8205 [DATASHEET]
9121D–INDCO–09/14



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1. Description
The Atmel® ATA8203/ATA8204/ATA8205 is a multi-chip PLL receiver device supplied in an SSO20 package. It has been
specially developed for the demands of RF low-cost data transmission systems with data rates from 1Kbit/s to 10Kbit/s in
Manchester or Bi-phase code. Its main applications are in the areas of aftermarket keyless entry systems, and tire pressure
monitoring systems, telemetering, consumer/industrial remote control applications, home entertainment, access control
systems, and security technology systems. It can be used in the frequency receiving range of f0 = 312.5MHz to 317.5MHz,
f0 = 431.5MHz to 436.5MHz or f0 = 868MHz to 870MHz for ASK or FSK data transmission. All the statements made below
refer to 315MHz, 433MHz and 868.3MHz applications.
Figure 1-1. System Block Diagram
UHF ASK/FSK
Remote control transmitter
UHF ASK/FSK
Remote control receiver
ATA8401/02/03/04/05
ATA8203/
ATA8204/
ATA8205 Demod.
Control
1 to 5 Micro-
controller
XTO
PLL
VCO
Antenna Antenna
IF Amp
PLL
XTO
Power
amp.
LNA VCO
ATA8203/ATA8204/ATA8205 [DATASHEET]
9121D–INDCO–09/14
3



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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
Data
Interface
Polling Circuit
and Control Logic
4. Order
f0 = 1 MHz
FE CLK
LPF
fg = 2.2 MHz
Standby
Logic
LNAREF
LNA_IN
LNAGND
LNA
IF
Amp.
Poly-LPF
fg = 7 MHz
f
:2
or :4
Loop
Filter
XTO
LC-VCO
f
:128
or :64
f
:2
or :3
DATA
POLLING/_ON
DATA_CLK
MODE
IC_ACTIVE
XTAL2
XTAL1
4 ATA8203/ATA8204/ATA8205 [DATASHEET]
9121D–INDCO–09/14



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