KESRX04
ELECTRICAL CHARACTERISTICS A.C.
(continued)
These characteristics are typical values measured for a limited sample size. They are not guaranteed by production test.
They are only given as a design guide to assist during the design-in phase of KESRX04.
Parameter
Symbol
Value
Units
Condition
Min
Anti-jam rejection
Typ
+14
Max
dB
Unmodulated interfering signal
= -76dBm 433.82MHz. OOK
modulated wanted signal =
-90dBm 433.92MHz Figure 5 (7)
Internal RF Amplifier
Parallel input impedance
Parallel input impedance
Parallel output impedance
Parallel output impedance
Noise Figure
Rfin
Rfin
Rfout
Rfout
NF
1.0 // 1.8
1.6 // 1.9
8.8 // 1.7
18 // 1.8
4.5
Noise matching Impedance
1dB compression point
(input referred)
Rfin
1.0 // 4.6
KΩ // pF Fs=434MHz, Vcc= 5V,
Tamb =25°C
KΩ // pF Fs=315MHz, Vcc= 5V,
Tamb =25°C
KΩ // pF Fs=434MHz, Vcc= 5V,
Tamb =25°C
KΩ // pF Fs=315MHz, Vcc= 5V,
Tamb =25°C
dB
Fs=434MHz; Vcc= 5V,
Tamb =25°C matched 50ohm
environment input and output
KΩ // nH Fs=434MHz, Vcc= 5V,
Tamb =25°C
dBm
Fs=434MHz, Vcc= 5V,
Tamb =25°C matched 50ohm
environment input and output
Fs=434MHz., Vcc= 5V,
Tamb =25°C O/P matched to
Mixer input impedance
RF Amplifier is
conditionally
stable
Rfin
-20
Amplifier gain
RFamp
13
dB
MIXER
Parallel input impedance
Parallel input impedance
Output impedance
Noise Figure
(Double side band
measurement)
MIXIP
MIXIP
IF1
1.6 // 1.8
1.6 // 1.8
300
KΩ // pF Fs=434MHz, Vcc= 5V,
Tamb =25°C
KΩ // pF Fs=315MHz, Vcc= 5V,
Tamb =25°C
Ω
Fs=10.7MHz, Vcc= 5V,
Tamb =25°C
dB
Fs=434MHz; Vcc= 5V,
Tamb =25°C
matched 50ohm environment
input and output
Fs=434MHz., Vcc= 5V,
Tamb =25°C Measured at
input to ceramic filter. Includes
6dB matching loss
NF
10
Mixer conversion gain
Amix
9
dB
IF Strip (RSSI)
IF2 input impedance
4.0
KΩ
IF=10.7MHz, Vcc= 5V,
Tamb =25°C
IF gain of log amp
Alog
80
dB
All, Vcc= 5V, Tamb =25°C
4
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