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Ordering number : ENA0306
LV3401M
Overview
Bi-CMOS IC
FM Multiplex Filter
The LV3401M is a filter IC for FM multiplex broadcasting reception which is used in combination with demodulation and error correction IC (LC72700 series). The use of switched capacitor filter (SCF) technique obviates the need for frequency adjustment and ensures stable operation.
Functions * 76kHz BPF (Gaussian filter) * 54kHz HPF * 125kHz LPF * Anti-aliasing filter * Limiter circuit
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Input voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max V3, V12 Pd max Topr Tstg Ta85C * Conditions Ratings 6 -0.3 to VCC+0.3 180 -40 to +85 -55 to +125 Unit V V mW C C
* Mounted on a board:114.3x76.1x1.6mm3 Glass epoxy
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Allowable operating range Input signal voltage range Symbol VCC VCC op VIN Baseband signal for FM : 100% modulation fin = 76kHz, CW Clock frequency Clock input voltage fck Vck Rectangular wave Rectangular wave Conditions Ratings 5.0 3 to 5.5 200 to 300 8 to 30 3.60 1.0 to VCC Unit V V mVrms mVrms MHz Vp-p
Any and all SANYO Semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor products described or contained herein.
92706 / 30106 B8-6545 No.A0306-1/4
LV3401M
Electrical Characteristics at Ta = 25C, VCC = 5V, fck = 3.6MHz, Vck = 1Vp-p
Parameter Supply current SCF block common voltage Signal input resistance Clock input resistance [MSK output] MSK input sensitivity V3S V10H V10L Input level at which an MSK output having a frequency of 76kHz is obtained when VIN = 76kHz, CW is applied. MSK output H level MSK output L level VIN = 76kHz, 4mVrms, CW 4 0.4 V V 4 mVrms Symbol ICCO V2 RIN3 RIN12 Conditions min Pin 14 current when VIN = no signal Pin 2 voltage when VIN = no signal Pin 3 input resistance Pin 12 input resistance 3.8 2.2 Ratings typ 6 2.4 36 5 max 8 2.6 mA V k k Unit
Reference Characteristics
Parameter AAF cutoff frequency HPF corner frequency LPF cutoff frequency BPF center frequency BPF-3dB frequency In-band maximum group delay time difference Symbol fAAF fHPF fLPF fBPF fBPF-3dB BDL Conditions Ratings 300 54 125 76 19 5 Unit kHz kHz kHz kHz kHz s
Package Dimensions
unit :mm 3111A
8.0 14 8
Pin Assignment
4.4 6.4
0.35 1.0 1.0
SANYO : MFP14S(225mil)
0.1 (1.5)
1.7max
1
7
0.15
0.63
No.A0306-2/4
LV3401M
Block Diagram and Test Circuit
Pin Description
Pin No. 1 2 3 10 11 12 14 5, 8, 13 4, 6, 7, 9 Pin name GND VCOM SIG.IN MSK OUT VREF CLKIN VCC TEST PIN NC Ground pin SCF block common pin. Decoupling capacitor connection. Signal input pin. FM demodulation signal (composite signal) input. Demodulation signal 200 to 300mVrms input. When 76kHz only is input, input sensitivity is 4mVrms or less. MSK output (CMOS output) Limiter reference pin. Internal resistor and external capacitor are used to form LPF. 3.6MHz clock input. Since limiter amplifier provides DC bias, clock is input through capacitive coupling. Power supply pin. Test pin. Left open. Idle pin. Description
No.A0306-3/4
LV3401M
Usage Notes (1) Leave pins 4 to 9 and pin 13 open. (2) Input the clock to pin 12, as such, through a capacitor (100pF) from the decoder(LC72700 series) clock output pin or input the clock to pin 12 through a capacitor after making the rising/trailing edge less steep by inserting a CR-formed LPF en route if it is desirable to reduce spurious radiation from the clock line. (3) 5ms or less are recommended at the rising time of the power supply.
Specifications of any and all SANYO Semiconductor products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Semiconductor Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor products (including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Semiconductor Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO Semiconductor 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 March, 2006. Specifications and information herein are subject to change without notice. PS No.A0306-4/4

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