Datasheet

315MHz/433MHz ASK Superheterodyne
Receiver with Extended Dynamic Range
Table 2. Component Values for Typical Application Circuit
COMPONENT VALUE FOR f
RF
= 433MHz VALUE FOR f
RF
= 315MHz DESCRIPTION
C1 100pF 100pF 5%
C2 2.7pF 4.7pF ±0.1pF
C3 100pF 100pF 5%
C4 100pF 100pF 5%
C5 1500pF 1500pF 10%
C6 220pF 220pF 5%
C7 470pF 470pF 5%
C8 0.47µF 0.47µF 20%
C9 220pF 220pF 10%
C10 0.01µF 0.01µF 20%
C11 0.1µF 0.1µF 20%
C12 15pF 15pF Depends on XTAL
C13 15pF 15pF Depends on XTAL
C14 0.01µF 0.01µF 20%
C15 0.01µF 0.01µF 20%
L1 56nH 120nH 5% or better**
L2 15nH 15nH 5% or better**
L3 15nH 27nH 5% or better**
R1 5.1kΩ 5.1kΩ 5%
R2 Open Open —
R3 Short Short —
X1(÷64) 6.6128MHz* 4.7547MHz* Crystek or Hong Kong X’tal
X1 (÷32) 13.2256MHz* 9.5094MHz* Crystek or Hong Kong X’tal
Y1 10.7MHz ceramic filter 10.7MHz ceramic filter Murata
*Crystal frequencies shown are for ÷ 64 (V
XTALSEL
= 0V) and ÷ 32 (V
XTALSEL
= V
DD
).
**Wirewound recommended.
MAX1473
Maxim Integrated
13