ATA5744 ATMEL Corporation, ATA5744 Datasheet - Page 14

• Manufacturer Part Number: ATA5744
• Description: Ata5744 Uhf Ask Receiver
• Manufacturer: ATMEL Corporation

10. Electrical Characteristics (continued)
14
Parameters
1 dB compression point
(LNA, mixer, IF amplifier)
Maximum input level
Local Oscillator
Operating frequency range
VCO
Phase noise VCO/LO
Spurious of the VCO
VCO gain
Loop bandwidth of the PLL
Capacitive load at pin LF
XTO operating frequency
Series resonance resistor of
the crystal
Static capacitance of the
crystal
Analog Signal Processing
Input sensitivity
Sensitivity variation for the
full operating range
compared to
T
amb
= 25
°
ATA5744
C, V
S
= 5V
Test Conditions
Input matched according to
Figure 3-3 on page
RF
Input matched according to
Figure 3-3 on page
f
at 1 MHz
at 10 MHz
at ±f
For best LO noise
(design parameter)
R1 = 820
C9 = 4.7 nF
C10 = 1 nF
XTO crystal frequency,
appropriate load capacitance
must be connected to XTAL
f
f
f
4.906 MHz
Input matched according to
Figure 3-3
ASK (level of carrier)
BER 10
f
T = 25°C, V
BR_Range0 (1 kBd)
BR_Range1 (2 kBd)
BR_Range2 (4kBd)
BR_Range3 (8 kBd)
f
f
P
osc
XTAL
XTAL
XTO
in
in
IF
ASK
= 433.92 MHz/ 315 MHz
= 433.92 MHz/315 MHz
= 1 MHz
in
= 432.92 MHz
XTO
= 6.764 MHz
= 6.764375 MHz (EU)
= 4.90625 MHz (US)
= P
Ref_ASK
-3
(Manchester),
S
= 5V, f
+ P
IF
6, referred to
6, BER 10
Ref
= 1 MHz
-3
Symbol
P
P
C
L (fm)
B
Ref_ASK
IP
K
f
f
in_max
VCO
LF_tot
XTO
R
C
P
VCO
Loop
1db
Ref
S
o
6.764375
–30 ppm
–30 ppm
4.90625
–107
–105
–103
–101
Min.
+2.5
299
6.764375
4.90625
–113
–110
–108
–106
–104
Typ.
–40
–93
–55
190
100
6.764375
+30 ppm
+30 ppm
4.90625
–110
–108
Max.
–112
–110
–106
–1.5
–20
449
–90
–47
150
220
6.5
10
4893A–RKE–11/05
dBC/Hz
dBC/Hz
MHz/V
dBm
dBm
MHz
MHz
MHz
dBm
dBm
dBm
dBm
Unit
dBC
kHz
dB
nF
pF