SA627 Datasheet, PDF (6/16 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
-25dB,
-10dB,
-29dB,
1500/50Ω PAD 50/50Ω PAD 929/50Ω PAD
-10.6dB,
50/50Ω PAD
-36dB,
156k/50Ω PAD
50.5
3880 ²⁴³⁰
C24
SW9
96.5
51.5
32.6 71.5
C20
C22
FLT1 SW8
C23
SW7
C21
96.5
51.7
32.8 ^71.5
R17
5.1k
C19
1.3k
C16 ^C15
SW6
FLT2
C18 C17
SW5
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
SW1
SW3
C8
SW4
C9 R9
R10
C2
L1
C7
R4
SW2 ^51.1
R1
C5
C6
L2
X1
C10 C11
C12
C14
C3
R3
R2
45MHZ
C4 _EXT.
LOC
OSC
44.545
45.06
MHZ
R7
30.5
R6
178
MINI–CIRCUIT ZSC2–1B
R8
39.2
MUTE
”C” WEIGHTED
AUDIO
MEASUREMENT
CIRCUIT
V_CC
RSSI AUDIO
OUTPUT
IFT1
C13
R12
FREQ CHK/
LIMITER OUT (–)
Automatic Test Circuit Component List
C1 100pF NPO Ceramic
C21 100nF +10% Monolithic Ceramic
C2 390pF NPO Ceramic
C23 100nF +10% Monolithic Ceramic
C5 100nF +10% Monolithic Ceramic
C25 100nF +10% Monolithic Ceramic
C6 22pF NPO Ceramic
Flt 1 Ceramic Filter Murata SFG455A3 or equiv
C7 1nF Ceramic
Flt 2 Ceramic Filter Murata SFG455A3 or equiv
C8 10.0pF NPO Ceramic
IFT 1 455kHz (Ce = 180pF) Toko RMC–2A6597H
C9 100nF +10% Monolithic Ceramic
L1 147–160nH Coilcraft UNI–10/142–04J08S
C10 10µF Tantalum (minimum)
C11 100nF +10% Monolithic Ceramic
C12 15nF +10% Ceramic
C13 0.1µF +10% Monolithic Ceramic
C14 100nF +10% Monolithic Ceramic
C15 10pF NPO Ceramic
C17 100nF +10% Monolithic Ceramic
C18 100nF +10% Monolithic Ceramic
L2 0.8µH nominal
Toko 292CNS–T1038Z
X1 44.545MHz Crystal ICM4712701
R9 100k +1% 1/4W Metal Film
R17 5.1k +5% 1/4W Carbon Composition
R10 100k +1% 1/4W Metal Film (optional)
R11 100k +1% 1/4W Metal Film (optional)
R12 3kΩ +5% 1/4W Metal Film (optional)
*NOTE: This value can be reduced when a battery is the power source.
SR00483
Figure 3. SA627 45MHz Test Circuit (Relays as shown)
1997 Nov 07
6