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| Ordering number : ENA0893 Bi-CMOS LSI LV4910T Overview Class-D Audio Power Amplifier BTL 2W x 2ch LV4910T is a stereo digital amplifier for portable equipment, for example notebook-PC, portable DVD and portable mini-speakers. It is characterized by the use of an original feedback technology to improve sound quality though it is Class-D amplifier, and does not need the LC filter in the output stage. Features * D-class high-efficiency amplifier * Low pop sound at SW changeover * Differential input type Functions * 2W stereo digital power amplifier * Standby switch * Mute switch * Various protective circuits (over-current protective, thermal protective, and under-voltage circuits) incorporated Specifications Absolute Maximum Ratings at Ta = 25C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg as mounted on the substrate Conditions Ratings 6 1.05 -20 to +75 -40 to +150 Unit V W C C 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. 90507 MS PC 20070709-S00007 No.A0893-1/7 LV4910T Operating Conditions at Ta = 25C Parameter Recommended supply voltage Operation supply voltage range Recommended load resistance Symbol VCC VCC opg RL Speaker Conditions Ratings 5 2.5 to 5.5 4 Unit V V Electrical Characteristics Ta = 25C, VCC = 5V, f = 1kHz, RL = 4 Parameter Standby current Current at no signal Current at Mute Voltage gain Channel balance Output power Total harmonic distortion Output noise voltage Crosstalk Ripple rejection ratio Common mode rejection ratio Mute attenuation value Oscillation frequency Standby ON voltage sensitivity Standby OFF voltage sensitivity Mute ON voltage sensitivity Mute OFF voltage sensitivity Symbol Ist ICCO1 ICCO mute VG VG PO THD VNO CT RR CMRR VOFF FPWM VPWROFF VPWRON VMUTEON VMUTEOFF Standby ON start voltage Standby OFF start voltage Mute ON start voltage Mute OFF start voltage 2 3 0.5 Conditions min Current at ST ON At LC filter-less At Mute of speaker VO = 0dBm VO = 0dBm THD = 10% PO = 0.5W, DIN AUDIO Rg = 0, DIN AUDIO VO = 0dBm, TUN 1kHz fr = 100Hz, Vr = -10dBm, TUN 100Hz VO = 0dBm, DIN AUDIO VO = 0dBm, DIN AUDIO 21 -1 12 10 23 0 2 0.4 100 -60 -40 -60 -80 300 1 0.7 200 -40 -30 -40 -70 Ratings typ max 1 20 16 25 1 A mA mA dB dB W % V dB dB dB dB kHz V V V V Unit * Electrical characteristics vary depending on the substrate layout and selection of external parts. For measurement of the above characteristics, the coil : 22H (Toko Kabushiki Kaisha made D63CB) is used. Package Dimensions unit : mm (typ) 3259 1.5 9.75 30 16 Pd max -- Ta Allowable power dissipation, Pd max - W 1.05 1.0 5.6 7.6 0.5 0.63 0.5 1 0.65 (0.33) 0.22 15 0.15 (1.0) 1.2max 0 - 20 0.08 0 20 40 60 80 100 Ambient temperature, Ta - C SANYO : TSSOP30(275mil) No.A0893-2/7 LV4910T Block Diagram 22H 1F RL 22H 0.33F 220F + 1F 0.33F OUT-2 1 GND2 2 OUTPUTSTAGE OUTPUTSTAGE + 22H 30 OUT 1 0.33F GND1 29 28 OUT 1 27 NC 22H 1F RL OUTPUTSTAGE OUTPUTSTAGE OUT+2 3 NC 4 0.33F + 26 25 24 VCC1 1F Pre VCC 220F VCC2 5 6 7 THERMAL BIAS MUTE MUTE CAP 8 1F PRE GND 0-5V MUTE 9 RF CAP 4.7F 11 PRE GND 12 1F IN_CH2+ 1F IN_CH2PRE GND 13 14 15 10 RECEIVER CONTROL DE LAY CONTROL DE LAY RECEIVER VREF BIAS MUTE R.F. 23 22 21 STBY 20 19 18 17 16 IN_CH1+ 1F IN_CH1- 1F 0-5V VREF OUT 22F PRE GND No.A0893-3/7 LV4910T Pin Descriptions Pin No. 1 3 28 30 Pin name OUT-2 OUT+2 OUT-1 OUT+1 Pin voltage (V) 2.58 * Power outputs Pin description Equivalent circuit 2 4 5 6 7 8 GND2 NC VCC2 NC NC MUTE CAP 0 * Non-connection 5 * Non-connection * Non-connection 4.9 * Connection for the mute switch On/Off impulse noise reduction capacitor 20k 300k 9 MUTE * Mute On/Off switch * 2 to 5.5V : Mute Off * 0 to 0.7V : Mute On 100k 20k 300k 10 RF CAP 2.6 * Ripple filter reference 100k 300 45k 100k 11 12 13 14 17 18 NC NC IN_ch2+ IN_ch2IN_ch1IN_ch1+ 2.4 * Non-connection * Non-connection * Signal input 300 30k Continued on next page. No.A0893-4/7 LV4910T Continued from preceding page. Pin No. 15 16 Pin name PRE GND VREF OUT Pin voltage (V) 0 2.55 * VREF amplifier reference Pin description Equivalent circuit 1k 19 20 21 NC NC STBY * Non-connection * Non-connection * STBY On/Off switch * 0 to 1V : Power Off * 3 to 5.5V : Power On 1k 20k 300k 10k 22 23 24 25 26 27 29 NC NC NC PRE VCC VCC1 NC GND1 0 5 5 * Non-connection * Non-connection * Non-connection * Non-connection No.A0893-5/7 LV4910T 30 Ist, ICCO -- VCC 0.7 0.6 25.0 VG -- f ch2 ch1 Quiescent current, ICCO - mA 25 20 I CCO Ist 15 ( A) 0.4 0.3 0.2 Voltage gain, VG - dB (mA 0.5 Standby current, Ist - A ) 20.0 15.0 10.0 10 0.1 5 0 0 0 1 2 3 4 5 6 5.0 -0.1 0 10 VCC = 5V RL = 4 VO = 0dBm 23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k Supply voltage, VCC - V 3.0 Frequency, f - Hz 1.4 PO -- VCC Pd, -- PO 6V) Allowable power dissipation, Pd - W 2.5 RL = 4 f = 1kHz THD = 10% % ) 80 70 60 50 40 1.2 V) (5 (3. Output power, PO - W 1.0 2.0 1.5 PO 1.0 (T H D 0.6 0.4 Pd (3 .6 V) P 5 d( V) VCC = 3.6V, 5V RL = 4 f = 1kHz 30 20 10 0.5 0.2 0 0.1 0 2 2.5 3 3.5 4 4.5 5 5.5 6 2 3 5 7 1 2 3 5 7 0 10 Supply voltage, VCC - V 10.000 7 5 3 2 PO -- VIN Output power, PO - W 10 -5 - 10 - 15 - 20 - 25 - 30 - 35 - 40 - 45 SVRR -- f Output power, PO - W 1.000 7 5 3 2 0.100 7 5 3 2 0.010 7 5 3 2 0.001 0.01 2 3 c a h1 nd c i h2 ss im r ila Ripple rejection ratio, SVRR - dB RL = 4 VCC = 5V f = 1kHz VCC = 5V RL = 4 VR = -10dBm, non-filter ch1 and ch2 is similar 5 7 0.1 2 3 5 7 1 10 23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7 100k Input voltage, VIN - Vrms 10.00 7 5 3 2 Frequency, f - Hz 100.00 7 5 3 2 THD+N -- f THD+N -- PO RL = 4 f = 1kHz DIN AUDIO VCC = 5V RL = 4 PO = 0.5W, DIN AUDIO THD+N - % THD+N - % 1.00 7 5 3 2 0.10 7 5 3 2 0.01 10 23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k 10.00 7 5 3 2 1.00 7 5 3 2 0.10 0.1 2 3 5 7 2 3 5 7 ch2 ch1 ch1 ch2 1 10 Frequency, f - Hz Output power, PO - W No.A0893-6/7 -% = 10 0.8 LV4910T - 40 - 45 - 50 CT -- f Output noise voltage, VNO - V VCC = 5V RL = 4 Rg = 0 VO = 0dBm, non-filter 150 140 130 120 110 100 90 80 70 60 50 VNO -- VCC RL = 4 Rg = 0 DIN AUDIO Crosstalk, CT - dB - 55 21 - 60 ch1 12 - 65 - 70 - 75 - 80 10 23 5 7 100 23 5 7 1k 23 5 7 10k 23 5 7100k ch2 2 2.5 3 3.5 4 4.5 5 5.5 6 Frequency, f - Hz Supply voltage, VCC - V 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 September, 2007. Specifications and information herein are subject to change without notice. PS No.A0893-7/7 |
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