Datasheet

(Typical Application Circuit, all RF inputs and outputs are referenced to 50Ω, V
DD
= +3.3V, T
A
= +25°C, f
RFIN
= 315MHz, unless other-
wise noted.) (Note 1)
Note 1: Parts are production tested at T
A
= +25°C; Min and Max values are guaranteed by design and characterization.
Note 2: BER = 2E-3, Manchester encoded, data rate = 4kbps, IF bandwidth = 350kHz.
Note 3: Input impedance is measured at the LNAIN pin. Note that the impedance includes the 15nH inductive degeneration
connected from the LNASRC.
Note 4: Guaranteed by production test.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Noise Figure NF
LNA
2.0 dB
Power Gain 16 dB
MIXER
Input Impedance S11
MIX
Normalized to 50Ω 0.25 - j2.4
Input-Referred 3rd-Order
Intercept
IIP3
MIX
-18 dBm
Output Impedance Z
OUT
_
MIX
330 Ω
Image Rejection
f
RFIN
= 315MHz, f
RF
_
IMAGE
= 293.6MHz
(Note 4)
40 53
dB
f
RFIN
= 433.92MHz, f
RF
_
IMAGE
= 412.52MHz 39
Noise Figure NF
MIX
16 dB
Conversion Gain 330Ω IF lter load 13 dB
INTERMEDIATE-FREQUENCY DEMODULATOR BLOCK
Input Impedance Z
IN
_
IF
330 Ω
Operating Frequency f
IF
10.7 MHz
RSSI Linearity ±1 dB
RSSI Dynamic Range 65 dB
RSSI Level
P
RFIN
< -120dBm 1.2
V
P
RFIN
> -50dBm 2.0
DATA FILTER
Maximum Bandwidth BW
DF
100 kHz
DATA SLICER
Comparator Bandwidth BW
CMP
100 kHz
Maximum Load Capacitance C
LOAD
10 pF
CRYSTAL OSCILLATOR
Reference Frequency f
REF
4.7547 MHz
MAX1470 315MHz Low-Power, +3V Superheterodyne
Receiver
www.maximintegrated.com
Maxim Integrated │ 3
AC Electrical Characteristics (continued)