SA627 Datasheet, PDF (7/16 Pages) NXP Semiconductors – High performance low power FM IF system with high-speed RSSI

Philips Semiconductors
High performance low power mixer FM IF system
with high-speed RSSI
Product specification
SA627
R17
5.1k
C15
FLT1
C23
C21
FLT2
C18 C17
20 19 18 17 16 15 14 13 12 11
IF AMP
700
MIXER
OSCILLATOR
LIMITER
RSSI
QUAD
DETECTOR
MUTE
SWITCH
1
2
3
4
5
6
7
8
9
10
C1
C2
L1
45MHz
INPUT
R5
C5
C6
C8
C7
L2
X1
C9 R9
R10
C10 C11
C12
C25
IFT1
C14
MUTE
V_CC
RSSI AUDIO
OUTPUT
Application Component List
FREQ CHECK/
LIMITER OUT (–)
C1 100pF NPO Ceramic
C2 390pF NPO Ceramic
C5 100nF +10% Monolithic Ceramic
C6 22pF NPO Ceramic
C7 1nF Ceramic
C8 10.0pF NPO Ceramic
C9 100nF +10% Monolithic Ceramic
C10 10µF Tantalum (minimum) *
C11 100nF +10% Monolithic Ceramic
C12 15nF +10% Ceramic
C13 150pF +2% N1500 Ceramic
C14 100nF +10% Monolithic Ceramic
C15 10pF NPO Ceramic
C17 100nF +10% Monolithic Ceramic
C18 100nF +10% Monolithic Ceramic
C21
C23
C25
Flt 1
Flt 2
IFT 1
L1
L2
X1
R9
R17
R5
R10
R11
100nF +10% Monolithic Ceramic
100nF +10% Monolithic Ceramic
100nF +10% Monolithic Ceramic
Ceramic Filter Murata SFG455A3 or equiv
Ceramic Filter Murata SFG455A3 or equiv
455kHz (Ce = 180pF) Toko RMC–2A6597H
147–160nH Coilcraft UNI–10/142–04J08S
0.8µH nominal
Toko 292CNS–T1038Z
44.545MHz Crystal ICM4712701
100k +1% 1/4W Metal Film
5.1k +5% 1/4W Carbon Composition
Not Used in Application Board (see Note 8)
100k +1% 1/4W Metal Film (optional)
100k +1% 1/4W Metal Film (optional)
*NOTE: This value can be reduced when a battery is the power source.
Figure 4. SA627 45MHz Application Circuit
SR00484
1997 Nov 07
7