IA4420 Datasheet, PDF (8/29 Pages) List of Unclassifed Manufacturers – Universal ISM Band FSK Transceiver

IA4420
AC Characteristics (PLL parameters)
Symbol
f_ref
f_o
t_lock
t_{st, P}
Parameter
PLL reference frequency
Receiver LO/Transmitter carrier
frequency
PLL lock time
PLL startup time
Conditions/Notes
(Note 1)
315 MHz band, 2.5 kHz resolution
433 MHz band, 2.5 kHz resolution
868 MHz band, 5.0 kHz resolution
915 MHz band, 7.5 kHz resolution
Frequency error < 1kHz
after 10 MHz step
With a running crystal oscillator
AC Characteristics (Receiver)
Symbol
BW
BR
BRA
P_min
AFC_range
IIP3_inh
IIP3_outh
IIP3_inl
IIP3_outl
P_max
Cin
RS_a
RS_r
C_ARSSI
RS_step
RS_resp
Parameter
Receiver bandwidth
FSK bit rate
FSK bit rate
Receiver Sensitivity
AFC locking range
Input IP3
Input IP3
IIP3 (LNA –6 dB gain)
IIP3 (LNA –6 dB gain)
Maximum input power
RF input capacitance
RSSI accuracy
RSSI range
Filter capacitor for ARSSI
RSSI programmable level steps
DRSSI response time
Conditions/Notes
mode 0
mode 1
mode 2
mode 3
mode 4
mode 5
With internal digital filters
With analog filter
BER 10^-3, BW=67 kHz, BR=1.2 kbps (Note 2)
df_FSK: FSK deviation in the received signal
In band interferers in high bands (868, 915 MHz)
Out of band interferers
l f-f_o l > 4 MHz
In band interferers in low bands (315, 433 MHz)
Out of band interferers
l f-f_o l > 4 MHz
LNA: high gain
Until the RSSI signal goes high after the input signal
exceeds the preprogrammed limit C_ARRSI = 5 nF
All notes for tables above are on page 10.
Min
Typ
Max Units
8
10
12 MHz
310.24
319.75
430.24
860.48
439.75 _MHz
879.51
900.72
929.27
20
us
250
us
Min
Typ
Max Units
60
67
75
120
134
150
180
240
200
270
225 _kHz
300
300
350
375
360
400
450
0.6
115.2 kbps
256 kbps
-109
-100 dBm
0.8*df_FSK
-21
dBm
-18
dBm
-15
dBm
-12
dBm
0
1
+/-5
46
1
dBm
pF
dB
dB
nF
6
dB
500
us
8