RFRXD0420 Datasheet, PDF (23/32 Pages) Microchip Technology – UHF ASK/FSK/FM Receiver

rfRXD0420/0920
4.1 DC Characteristics: rfRXD0420
(Industrial)
DC CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating Temperature -40°C ≤ TA ≤ +85°C
Param
No.
Sym
Characteristic
Min
Typ^†
Max
Units
Conditions
VCC
Supply Voltage
ISTBY
Standby Current
2.5
—
5.5
V
f_rf < 400 MHz
2.7
—
5.5
V
f_rf > 400 MHz
100
nA ENRX = 0
ICC
Supply Current
5.0
6.5
8.0
mA LNAGAIN = 1
6.5
8.2
10.0
mA LNAGAIN = 0
VOPA
Op Amp input voltage offset
-20
—
20
mV
IOPA
Op Amp input current offset
-50
—
50
nA
IBIAS
Op Amp input bias current
-100
100
nA
VRSSI RSSI voltage
0.5
1.0
1.5
V
LNAGAIN = 1
1.25
1.9
2.45
V
LNAGAIN = 0
* These parameters are characterized but not tested.
† _{Data in “Typ” column is at 3V, 23°C unless otherwise stated. These parameters are for design guidance only and}
are not tested.
4.2 AC Characteristics: rfRXD0420
(Industrial)
AC CHARACTERISTICS
Standard Operating Conditions (unless otherwise stated)
Operating Temperature -40°C ≤ TA ≤ +85°C
Param
No.
Sym
Characteristic
Min
Typ^†
Max
Units
Conditions
TFSK
Start-up time - FSK/FM
0.9
ms ENRX = 0 to 1
TASK
Start-up time - ASK
R1xC1
+TFSK
ms Note 1
Sensitivity - Narrowband FSK
-111
dBm Note 2
Sensitivity - Wideband FSK
-104
dBm Note 3
Sensitivity - Narrowband ASK
-109
dBm Note 4
Sensitivity - Wideband ASK
-106
dBm Note 5
Input RF level maximum FSK/
0
FM
dBm LNAGAIN = 1
Input RF level maximum ASK
-10
dBm LNAGAIN = 1
* These parameters are characterized but not tested.
† _{Data in “Typ” column is at 3V, 23°C, frf = 433.6 MHz, IF = 10.7 MHz unless otherwise stated. These parameters}
are for design guidance only and are not tested.
Note 1: Dependant on ASK detector time constant.
2: IF bandwidth = 40 kHz, ∆f = +/- 15 kHz, BER <= 3 x 10^-3
3: IF bandwidth = 150 kHz, ∆f = +/- 50 kHz, BER <= 3 x 10^-3
4: IF bandwidth = 40 kHz, BER <= 3 x 10^-3
5: IF bandwidth = 150 kHz, BER <= 3 x 10^-3
 2003 Microchip Technology Inc.
Preliminary
DS70090A-page 23