Ordering number : EN8094A Monolithic Linear IC LA7784FN For Digital CATV Down Converter IC Overview The LA7784FN is a digital out of band tuner for CATV. It supports RF input from 50 to 280MHz and supports the DOCSIS (USA) and Euro-DOCSIS (Europe) standards. Functions • RF Mixer • RF AGC amplifier • Driver for SAW filter • IF AGC amplifier • IF post amplifier for AD Specifications Maximum Ratings at Ta = 25°C Parameter Maximum Supply Voltage Circuit Voltages Symbol VCC max V max Conditions Ratings Pin 4, 12, 18, 19, 20, 21, 27, 28 Pin 5 Circuit Current I 10,11 Pin 10, 11 sink current Allowable Power Dissipation Pd max Ta≤70°C Unit 6.0 V VCC V 2 mA 750* mW Operating Temperature Topr -20 to +70 °C Storage Temperature Tstg -55 to +150 °C * On the Board 30×50×0.8mm, FR4, 4 layer. Recommended Operating Conditions at Ta = 25°C Parameter Recommended Supply Voltage Operating Supply Voltage Range Symbol Conditions Ratings Unit VCC Pin 4, 12, 18, 19, 20, 21, 27, 28 5.0 V VCC op Pin 4, 12, 18, 19, 20, 21, 27, 28 4.5 to 5.5 V Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. 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. 42507 MS PC 20061215-S00001 / 61005 MS IM B8-8634 No.8094-1/8 AC Characteristics at Ta = 25°C, VCC = 5.0V Parameter Symbol Pin No. Ratings Conditions min typ Circuit Current I total 4, 12, 18, 19, 20, 21, 27, 28 No Signal 80 RF Input Frequency Range f (RF) 22, 23 fc : -3dB 50 Unit max 105 RF AGC Range GR1 27, 28 V5 = 2.5 to 0V 45 53 Mixer Conversion Gain CG1 The pin 27 output for the V5 = 2.5V 19 22 130 mA 280 MHz dB 25 input to pins 22 and 23. dB The pin 28 output for the input to pins 22 and 23. Mixer Inter Modulation 1 IM3 1 The pin 27 output for the Input = 75dBµV input to pins 22 and 23. V5 = 2.5V The pin 28 output for the 40 50 dB input to pins 22 and 23. IF Input Frequency Range f (IF) IF Amplifier Gain G (AGC) 31, 32 fc : -3dB 30 The pin 10 output for the V5 = 2.5V 51 100 55 input to pins 31 and 32. MHz 59 dB The pin 11 output for the input to pins 31 and 32. IF Inter Modulation 2 IM3 2 Output = 110dBµV The pin 10 output for the 40 50 input to pins 31 and 32. dB The pin 11 output for the input to pins 31 and 32. IF AGC Range GR2 IF AGC Output Level 10, 11 IF Output Level < ±1dB 5 dB VO (IF) 1 10 Single output 1.0 Vp-p VO (IF) 2 11 Single output 1.0 Vp-p Package Dimensions unit : mm 3308 BOTTOM VIEW TOP VIEW 5.0 24 (1.6) 16 25 5.0 9 8 1 0.4 (1.1) 0 (0.8) 32 0.85max 0.45 12 0.16 Exposed Die-Pad Do Not Connect (1.6) (0.05) 17 LASER MARKED INDEX 3 SANYO : VQFN32J(5.0X5.0) LA7784FN NC 21 MIX / LO VCC 22 SAW Driver VCC RF AGC AMP Input 1 23 RF AGC AMP VCC 1 RF AGC AMP Input 2 24 RF AGC AMP VCC 2 NC Block Diagram and Pin Assignment 20 19 18 17 NC 25 RF AGC AMP RF AGC AMP GND 26 16 NC SAW Driver Output 1 27 15 LO Buffer Input 2 SAW Driver Output 2 28 RF Mixer SAW Driver 14 LO Buffer Input 1 13 MIX / LO GND SAW Driver GND 29 LO Buffer 12 Post AMP VCC IF AGC AMP GND 30 IF AGC AMP Post AMP IF AGC AMP Input 1 31 11 Post AMP Output 1 IF AGC AMP Input 2 32 10 Post AMP Output 2 1 2 3 4 5 6 7 8 NC NC IF AGC AMP GND IF AGC AMP VCC AGC Control Post AMP GND NC NC 9 NC No.8094-3/8 LA7784FN Pin Functions Pin name 1, 2 NC (Connect to GND) 3 IF AGC AMP GND 4 IF AGC AMP VCC 5 AGC Control Equivalent circuit VCC 70µA Pin number 1kΩ 5 6 Post AMP GND 7, 8, 9 NC (Connect to GND) 10, 11 Post AMP Output VCC 10 30Ω Post AMP VCC 13 MIX/LO GND 14, 15 LO Buffer Input 300Ω 7mA 3kΩ 12 3kΩ 7mA 11 30Ω 14 300Ω 1mA 15 16, 17 NC (Connect to GND) 18 Mixer/LO VCC 19 SAW Driver VCC Continued on next page. No.8094-4/8 LA7784FN Continued from preceding page. Pin number Pin name 20, 21 RF AGC AMP VCC Equivalent circuit 20 21 22, 23 RF AGC AMP Input 22 23 1kΩ 1kΩ 24, 25 NC (Connect to GND) 26 RF AGC AMP GND 27, 28 SAW Driver Output 27 20Ω 20Ω 28 20mA IF AGC AMP GND 31, 32 IF AGC AMP Input Bias 1kΩ SAW Driver GND 30 1kΩ 29 31 32 No.8094-5/8 LA7784FN 50Ω 24 5V 23 22 21 20 1000pF 1000pF 1000pF f=80MHz 50Ω 1000pF Test Circiut 19 18 17 25 RF AGC AMP 16 27 13 29 LO Buffer 12 30 IF AGC AMP 1000pF Post AMP 31 11 32 10 50Ω 14 SAW Driver V 0.01µF 28 f=130MHz RF Mixer 1000pF 15 FET PROBE V 1000pF 26 FET PROBE 1000pF V V 4 5 6 7 8 0.01µF 3 1kΩ 2 0.01µF 1 AGC CONTROL 5V f=50MHz 50Ω 9 No.8094-6/8 LA7784FN No.8094-7/8 LA7784FN SANYO Semiconductor Co.,Ltd. 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 Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents 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 Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require 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 consent 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 Co.,Ltd. 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. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of Aplil, 2007. Specifications and information herein are subject to change without notice. PS No.8094-8/8