LC01707PLF

No.A1928-3/18

Example of applied circuit (constant is tentative)

* 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

Parameter

Value

Type

Supplier

L1/L2

Local OSC coil

2.7nH

C2012H-2N7D-RD

SAGAMI

L3

Differential input coil

120nH

C2012C-R12G-RC

SAGAMI

X1

Crystal

7.2MHz

SMD-49

KDS

AT-49

KDS

EXS00A-A01145

NDK

EXS00A-A01146

NDK

NAGC

LIM

DEMO

Freq.Count

+

-

LPF

N_AGC

W_AGC

MIX I

MIX Q

injection

DIV

IF

AGC

IF

AGC

LNA

1

2

3

4

5

6

7

8

9

10

11

33

32

31

30

29

28

27

26

25

24

23

C BANK

MIX I

MIX Q

DIV

BPF

I/F

LOCK

DET

PD CP

REF

COUNT

PROG

COUNT

X_TAL

Freq.Count

1.8MHz

f0:600kHz

f0:1.2MHz

0.22 F

WAGC

10nF

VSS

NC

NC

VDD

0.022 F

0.68 F

22 F

VDD

VSS

27pF

47pF

LNA_P

LNA_N

L3 :

120nH

100pF

NC

NC

VSS

DEVAR

XTAL

SD

NC

NC

NC

INT

SCL

SDA

VDD

7.2MHz

18pF

COM

0.022 F

Decoder

Complex

BPF

Complex

BPF