LV24250LS Sanyo Semicon Device, LV24250LS Datasheet - Page 16

• Manufacturer Part Number: LV24250LS
• Description: 1-Chip FM Tuner IC
• Manufacturer: Sanyo Semicon Device

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Application Circuit
Cautions for mounting of IC
Note1 : For external part constant, the recommended value is described. Since the constant may differ during actual use
Note2 : The single input antenna application has been described. The difference input is also possible (The signal input
Note3 : If the spike noise between MPU and IC is large during communication, it is recommended to add limiting
Note4 : To reduce noise from power supply, add a capacitor between V CC - GND and between V DD - GND.
Note5 : The I
Note6 : Please use the INT pin arbitrarily. Recommended to open when unused.
The INT pin becomes unstable at IC startup. To protect MPU from any effects during startup, it is recommended
to add either the pull-up or pull-down resistor to set the non-active mode. (This is not necessary when the MPU
can be set to non-active by a software during initialization.
with the set mounted, be sure to consider optimization.
from 1pin and 2pin: Refer to the application note for details).
resistors R1, R2, and R3 between MPU and IC. 0Ω at 1.8V.
is 4.7k (4.7k to 10k). Set the pull-up voltage to the same one of V IO of LV24250LS. (Supply from the same
source as V IO and V DD is recommended.
Voltage
Source
V DD
FM_ANT
2
C bus communication line requires pull-up resistors R5 and R6. The commonly-employed resistance value
SW
Line_out_R
Line_out_L
possible depending on the
when the CD cut capacity
Changeover of resistor
state of power supply
is on the receive side
Not necessary
1000pF
100 to
Package
GND
GND
27pF
19
20
21
22
23
24
Winding type
18
interface pull-up
1
120nH
Voltage for I
LV24250LS
17
2
47pF
Top View
16
3
2
C
15
4
14
5
R1 R2
R5
13
6
I
2
C_Bus
MPU
R6
12
10
11
9
8
7
+
External_CLK_IN
R3
SCL
Package
GND
possible depending on the
R4
Changeover of resistor
state of power supply
Voltage
Source
V CC
No.A1699-16/18
SW
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