ATA3745P3-TGQY Atmel, ATA3745P3-TGQY Datasheet - Page 24

• Manufacturer Part Number: ATA3745P3-TGQY
• Description: IC UHF ASK/FSK RECEIVER 20SOIC
• Manufacturer: Atmel

Specifications of ATA3745P3-TGQY

• Frequency: 310MHz ~ 440MHz
• Sensitivity: -108dBm
• Data Rate - Maximum: 10 kBaud
• Modulation Or Protocol: ASK, FSK
• Applications: RKE, TPM, Security Systems
• Current - Receiving: 7mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (0.300", 7.50mm Width)
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Lead Free Status / Rohs Status: Compliant
• Other names: ATA3745P3-TGQYTR

8. Electrical Characteristics (Continued)
All parameters refer to GND, V
range refer to different circuit conditions: V
24
Parameters
Local Oscillator
Operating frequency range VCO
Loop bandwidth of the PLL
Capacitive load at pin LF
XTO operating frequency
Series resonance resistor of the
crystal
Static capacitance at pin XT0
Analog Signal Processing
Input sensitivity ASK 600-kHz IF filter
Sensitivity variation ASK for full
operating range including IF filter
compared to T
SNR to suppress in-band noise
signals
Dynamic range RSSI ampl.
Lower cut-off frequency of the data
filter
ATA3745
amb
= 25 C, V
S
S
= 5V
= 5V, T
amb
Test Conditions
For best LO noise
(design parameter)
R1 = 820
C9 = 4.7 nF
C10 = 1 nF
The capacitive load at pin LF is limited
if bit check is used. The limitation
therefore also applies to self polling.
XTO crystal frequency,
appropriate load capacitance must be
connected to XTAL
6.764375 MHz
4.90625 MHz
f
4.906 MHz
Input matched according to
ASK (level of carrier)
BER 10
f
T = 25 C, V
f
BR_Range0
BR_Range1
BR_Range2
BR_Range3
600-kHz version
f
f
f
P
ASK mode
CDEM = 33 nF
f
XTO
in
IF
in
IF
IF
cu_DF
ASK
= 25°C, f
= 433.92 MHz/315 MHz
= 433.92 MHz/315 MHz
= 1 MHz
= 0.81 MHz to 1.19 MHz
= 0.75 MHz to 1.25 MHz
S
= 4.5V to 5.5V, T
= 6.764 MHz
= P
=
Ref_ASK
-3
-----------------------------------------------------------
2
, B = 600 kHz
0
S
= 433.92 MHz and f
= 5V
+ P
30k
1
Ref
amb
= –40°C to +85°C
CDEM
Figure 5-1
0
= 315 MHz, unless otherwise specified. The possible operating
Symbol
P
SNR
C
f
B
Ref_ASK
C
f
cu_DF
f
R
VCO
LF_tot
XTO
R
P
Loop
XT0
RSSI
Ref
S
ASK
6.764375
–50 ppm
–50 ppm
4.90625
–104.5
–106
–104
–102
Min.
0.11
309
+3
+5
6.764375
4.90625
–108.5
–110
–108
–106
Typ.
0.16
100
11
60
6.764375
+50 ppm
+50 ppm
4.90625
–113.5
–111.5
–109.5
Max.
–112
0.20
439
150
220
6.5
10
4901B–RKE–11/07
Unit
MHz
MHz
MHz
dBm
dBm
dBm
dBm
kHz
kHz
nF
pF
dB
dB
dB
dB