SC1088 ETC, SC1088 Datasheet - Page 4

• Manufacturer Part Number: SC1088
• Description: FM RECEIVER CIRCUIT FOR BATTERY SUPPLY
• Manufacturer: ETC

V
(dB)
OAF
1
2
3
4
5
6
7
8
-20
-40
-60
-80
20
0
10
1: Mute ON
2: Mute OFF
Silan
Semiconductors
-6
MUTE
V
LOOP
Vp
OSC
IF FB
C
V
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
OAF
OIF
LP1
1
2
2
1
Mute output
Audio frequency output
signal
AF loop filter
Supply voltage
Oscillator resonat circuit
IF feedback
Low-pass capacitor of 1dB
amplifier
IF output to external coupling
capacitor(high-pass)
10
S+N
-5
Noise
Fig. 2 Input sensitivity
10
4
-4
10
11
12
13
14
15
16
9
V
C
V
V
C
GND
C
TUNE
iIF
LP2
IRF
IRF
LIM
AP
10
-3
IF input to limiter amplifier
Low-pass capacitor of IF
limiter amplifier
Radio frequency input
Radio frequency input
Limiter offset voltage
capacitor
Ground
All-pass filter capacitor.input
for search tuning
Electrical tuning/AFC output
EMF (V)
10
-2