LC01707PLF
Example of applied circuit (constant is tentative)
Decoder
NAGC
1
Freq.Count
33
VDD
0.22 F
WAGC
2
LIM
DEMO
-
+
LPF
32
SDA
0.022 F
10nF
VSS
3
I/F
31
SCL
W_AGC
N_AGC
NC
4
30
INT
VDD
22 F
0.68 F
NC
VDD
0.022 F
5
6
MIX I
MIX Q
IF
AGC
IF
AGC
Complex
BPF
f0:1.2MHz
Complex
BPF
MIX I
MIX Q
f0:600kHz
BPF
29
28
NC
NC
COM
LNA_P
7
1.8MHz
DIV
27
NC
100pF
27pF
L3 :
120nH
VSS
47pF
LNA_N
8
9
LNA
injection
LOCK
DET
PD CP
REF
COUNT
PROG
X_TAL
26
25
SD
XTAL
18pF
DIV
COUNT
7.2MHz
NC
10
Freq.Count
24
VSS
DEVAR
NC
11
C BANK
23
* Culprits oscillation circuit is used in this IC as a crystal oscillation circuit. Caution is required for layout of the board
because oscillation between pin25 and power source and GND line.
* The margin of crystal oscillation changes due to the combination of the IC, a crystal oscillator and a board layout. This
independent IC does not quarantine the oscillation operation.
* This IC uses the signal of FM band frequency (VCO divided into 1/4) which leaks into ANT pin. If the VCO leakage
affects the performance of the system, make sure to connect an isolator on ANT pin path.
Component
L1/L2
L3
X1
Parameter
Local OSC coil
Differential input coil
Crystal
Value
2.7nH
120nH
7.2MHz
Type
C2012H-2N7D-RD
C2012C-R12G-RC
SMD-49
Supplier
SAGAMI
SAGAMI
KDS
AT-49
EXS00A-A01145
EXS00A-A01146
KDS
NDK
NDK
No.A1928-3/18
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