LV3403M Datasheet, PDF (3/3 Pages) Sanyo Semicon Device – 3 V Operation Filter for FM Multiplex Broadcasting Reception

LV3403M
Pin Descriptions
Pin No.¬
1¬
2
3¬
Pin name¬
GND¬
V_COM
SIG.IN¬
10¬
11¬
12¬
14¬
5, 8, 13¬
4, 6, 7, 9¬
MSK OUT¬
V_REF
CLK _IN
V_CC
TEST PIN¬
NC¬
Description
Ground.
Common for SCF section. Connect to decoupling capacitor.
Signal input. Input a frequency-modulated signal (composite signal) at 200 to 300 mVrms.
When inputting 76 kHz only, the input sensitivity is 4 mVrms or less.
MSK output (CMOS output.)
Limiter reference pin. Form an LPF with the 10 kΩ internal resistor and an external
capacitor.
3.6 MHz clock input. Because the DC bias is output by the limiter amplifier input, the clock
is input with capacitor coupling.
Power supply
Test pin. Leave open.
Unused.
Notes on usage:
(1) When using this IC, leave pins 4 to 9 and pin 13 open.
(2) The clock is connected to pin 12 from the decoder (LC72700) clock output pin through a 100 pF capacitor. In addition, by
inserting a resistor in the clock line, it is possible to dampen the rising and falling edges, reducing spurious radiation.
Equivalent Circuit Block Diagram
Clock input
MSK output
Dual-mode clock
generator
Bias circuit
SIG. input
76 kHz CW
Note : Pins 4 through 9 and pin 13 must be left open.
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment,
nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or
indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors
and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and
expenses associated with such use:
2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO
ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume
production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use
or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of June, 1996. Specifications and information herein are subject to change without notice.
No.5191-3/3