Ordering number : ENN6146 Monolithic Linear IC LA4801V Headphone Stereo Power Amplifier Overview Package Dimensions The LA4801V is a headphone stereo power amplifier for portable CD and MD players. It features a high signal-tonoise ratio, a high ripple rejection ratio, low distortion, and low current drain. unit: mm 3178A-SSOP16 [LA4801V] 5.2 Functions 9 1 8 Features • • • • High signal-to-noise ratio (96 dB typical at 7 µV) High ripple rejection ratio (76 dB typical) Low current drain (4.8 mA typical) Low power consumption achieved through the use of a dual power supply system. • No electrolytic capacitors required for the outputs. • Ultraminiature package (SSOP-16) 1.5max 0.5 6.4 4.4 Headphone stereo power amplifier Power switch Muting switch Center amplifier switch 0.15 0.1 (1.3) • • • • 16 0.22 0.65 (0.33) SANYO: SSOP16 (225 mil) Allowable power dissipation, Pdmax — mW Pd max — Ta 500 400 375 300 300 200 100 0 –10 0 20 40 60 80 100 Ambient temperature, Ta — °C Any and all SANYO 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 representative nearest you before using any SANYO products described or contained herein in such applications. SANYO 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 products described or contained herein. SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 72502RM (OT) No. 6146-1/10 LA4801V Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Symbol Conditions Ratings Unit VCC max 4.5 V Pd max 375 mW Allowable power dissipation Operating temperature Topr –15 to +50 °C Storage temperature Tstg –40 to +150 °C Ratings Unit Operating Conditions at Ta = 25°C Parameter Recommended supply voltage Operating supply voltage range Recommended load resistance Symbol Conditions VCC1 1.5 V VCC2 2.5 V 0.9 to 4.5 V VCC1 op VCC2 op * 1.5 to 3.5 V 16 to 32 Ω RL Note: * However, when VCC2 is under 2.5 V, with a 1.5 V minimum, VCC1 must be less than or equal to VCC2. Electrical Characteristics at Ta = 25°C, VCC1 = 1.5 V, VCC2 = 2.5 V, fIN = 1 kHz, RL = 16 Ω Item Quiescent current Voltage gain Channel balance Output power Symbol Conditions Ratings min typ Unit max ICCO1 IC off: with pin 1 open. 0.05 1.0 µA ICCO2 Mute on 1.3 3.0 mA ICCO3 Center amplifier off: with pin 3 at Vref 3.3 8.0 mA ICCO4 No input 4.8 9.0 mA dB VG VO = –10 dBm 10.3 11.8 13.3 ∆VG VO = –10 dBm –1 0 1 6 13 PO THD = 10% dB mW Total harmonic distortion THD PO = 0.5 mW 0.2 1.0 % Output noise voltage VNO Rg = 1 kΩ, DIN AUDIO 7.8 15 µV CT Crosstalk Ripple rejection ratio Muting attenuation Output DC offset TUN1kHz, VO = –10 dBm 35 45 dB SVRR VCC = 1.0 V, fr = 100 kHz, Vr = –20 dBm, TUN100Hz 60 70 dB VOFF THD = 1%, TUN1kHz –80 –96 VDC OFF V1 = 0 V, Rg = 1 kΩ –20 dB +20 mV 40 µV Power on current sensitivity I1 ON VCC1 = 0.9 V, VCC2 = 1.5 V, V5 ≥ 0.7 V Power off voltage sensitivity V1 OFF VCC1 = 0.9 V, VCC2 = 1.5 V, V5 ≤ 0.1 V Mute off current sensitivity I16 OFF VCC1 = 0.9 V, VCC2 = 1.5 V, V5 ≥ 0.7 V 4.0 6.0 µV Mute on voltage sensitivity V16 ON VCC1 = 0.9 V, VCC2 = 1.5 V, V5 ≥ 0.7 V 0.9 1.0 V 20 0.5 0.6 V No. 6146-2/10 LA4801V 1 PW SW MT SW PW SW PWR C CONT 3kΩ PWC 12 BIAS V REF OUT B VREF 11 VCC 1 PRE GND 7 PWR GND OUT C 5 6 OUT A 13 10k Ω IN B MUTE SW 14 PWB 4 16 15 3kΩ 3 10k Ω IN A PW A 1k Ω 2 300kΩ Pin Assignment and Block Diagram 10 RIPPLE FILTER RF CONT V REF CONT 8 9 VCC 2 RF OUT Top view No. 6146-3/10 LA4801V Test Circuit Vcc 2 Vcc 1 OFF ON 3.3 µF 5 12 BIAS VREF 6 VREF OUT B 11 VCC 1 PRE GND 3.3 µF 7 V REF CONT RIPPLE FILTER 10 RF CONT 1µF 4.3 Ω 16 Ω OUT C Vcc 1 4.7 µF 10kΩ SG 13 2Ω PWB 4 PWR GND 4.3 Ω 1k Ω IN B 14 3kΩ PWR C CONT PW C 1k Ω 3 ON ON 16 Ω OFF 0.15 µF OUT A 0.33 µF IN A 15 3kΩ VREF PWA 10kΩ 2 MUTE SW 0.15 µF PW SW 1k Ω 16 300kΩ OFF MT SW PW SW 220 µF 1 100kΩ 4.7 µF 8 RF OUT 9 Vcc 2 VCC 2 Top view No. 6146-4/10 LA4801V Sample Application Circuit Vcc 2 Vcc 1 R4 100k Ω ON 1 PW SW C1 1µF VR PW A MUTE SW 15 3kΩ IN A 10kΩ 2 VREF 16 300kΩ OFF MT SW PW SW OUT A OFF PW C C2 1µF VR PWR C CONT PWB IN B 10kΩ 4 3.3 µF C3 6 13 12 BIAS VREF VREF ON R3 4.3 Ω C10 0.15 µF PWR GND OUT C 5 C11 1 µF 14 3k Ω ON 1k Ω 3 OFF OUT B R2 2Ω C9 0.33µF R1 4.3 Ω C8 0.15 µF 11 PRE GND VCC 1 C7 220 µF Vcc 1 C4 3.3 µF 7 VREFCONT RIPPLE FILTER 10 RF CONT C6 4.7 µF C5 4.7 µF 8 RF OUT 9 Vcc 2 VCC 2 Top view No. 6146-5/10 LA4801V Pin Descriptions The pin voltage applies when VCC = 1.5 V and VCC2 = 2.5 V. Pin No. Pin name 1 POWER SW Pin voltage (V) Pin description Equivalent circuit 1 • IC on/off switch 20kΩ 2 4 300Ω POWER IN 0.82 • Power input 2 4 POWER C CONT 5 VREF OUT • The center amplifier is on when this input is floating or at the ground level. 0.82 • VREF amplifier output 3 100kΩ 300Ω • Center amplifier on/off switch 3 10kΩ 5 300Ω 6 PRE GND 7 VREF CONT 300Ω 0.82 • VREF amplifier reference 7 1.2kΩ Continued on next page. No. 6146-6/10 LA4801V Continued from preceding page. Pin No. Pin name Pin voltage (V) 8 RF OUT 2.17 • Ripple filter output 9 VCC2 10 RF CONT 2.19 • Ripple filter reference Pin description Equivalent circuit 8 300Ω 45kΩ 300Ω 10 3.9kΩ 30kΩ 11 VCC1 12 OUT B 13 OUT C 15 OUT A • OUT A and OUT B are the power amplifier outputs. 0.69 • Pin 13 (OUT C) is the center amplifier output. This pin is a virtual ground when driving headphones. 12 13 15 14 PWR GND 16 MUTE SW • Mute on/off switch • The mute function is on when this pin is at the ground level. 300Ω 16 200kΩ No. 6146-7/10 0.8 14 0.7 12 0.6 10 0.5 8 0.4 Icco 6 0.3 0.2 4 IMute 2 0 0 0.5 1.0 1.5 2.0 2.5 0.1 Ist 3.0 3.5 4.0 4.5 0 5.0 Icco, IMute, Ist — Ta 10 8 0.07 6 Output noise voltage, VNO — µV 7 5 3 2 7 ch2 5 3 2 1.0 0 0.5 1.0 2.0 1.5 2.5 3.0 3.5 5 0.05 4 0.04 3 0.03 IMute 2 1 0 -30 4.0 4.5 -20 -10 20 10 30 40 50 60 70 0 80 SVRR — VCC1 ch2 70 60 50 40 RL=16Ω Rg=1kΩ fr=100Hz VCR=–20dBm Tun100Hz 30 0.5 1.0 14 ch2 12 10 8 6 1.5 2.0 2.5 3.0 4.0 3.5 4.5 5.0 Supply voltage, VCC1 — V VG — VCC1 14 VCC2=2.5V RL=16Ω f=1kHz Vo=–20dBm 13 Voltage gain, VG — dB Output power, PO — W 0 80 20 0 5.0 VCC2=2.5V RL=16Ω f=1kHz THD=10% ch1 16 0.01 ch1 Po — VCC1 18 0.02 Ist Supply voltage, VCC1 — V 20 0.06 Icco 90 Ripple rejection ratio, SVRR — dB Rg=1kΩ VCC2=2.5V DIN AUDIO ch1 0.08 Ambient temperature, Ta — °C VNO — VCC1 10 0.09 7 Supply voltage, VCC1 — V 100 0.1 Rg=1kΩ RL=16Ω VCC1=1.5V VCC2=2.5V 9 Standby current, Ist — µA 0.9 RL=16Ω Rg=1kΩ 16 VCC2=2.5V No signal current, mute state current, ICCO, IMute — mA Icco, IMute, Ist — VCC1 18 Standby current, Ist — µA No signal current, mute state current, ICCO, IMute — mA LA4801V 4 12 ch1 ch2 11 10 9 2 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 8 0 5.0 0.5 1 VG — f 40 25 20 15 ch1 ch2 10 5 0 10 3 2.5 3.5 4 4.5 5 VG — Ta VCC1=1.5V VCC2=2.5V Vo=–20dB RL=16Ω 15 Voltage gain, VG — dB Voltage gain, VG — dB 30 2 16 VCC1=1.5V VCC2=2.5V Vo=–10dBm RL=16Ω 35 1.5 Supply voltage, VCC1 — V Supply voltage, VCC1 — V 14 13 ch2 12 ch1 11 10 9 100 1k Frequency, f — Hz 10k 100k 8 -30 -20 -10 0 10 20 30 40 50 60 70 80 Ambient temperature, Ta — °C No. 6146-8/10 LA4801V VREF, VO — VCC1 2.0 VREFDC, VN — Ta 1.4 VCC2=2.5V Rg=1kΩ RL=16Ω VCC1=1.5V VCC2=2.5V 1.8 1.2 VREFDC, VN — mA 1.6 VREF, VO — V 1.4 1.2 1.0 VREF 0.8 OUTA, B, C 0.6 1.0 VREFDC 0.8 VN 0.6 0.4 0.4 0.2 0.2 0 0 0.5 1 1.5 2 3 2.5 3.5 4 4.5 0 -30 -20 5 Total harmonic distortion, THD — % THD — VIN 100 R =16Ω 7 L 5 Rg=1kΩ f=1kHz 3 BPF=400Hz 2 to 80kHz 10 7 5 3 2 1.0 7 5 ch1 3 2 ch2 0.1 -40 -35 -30 -25 -20 -15 -10 -10 0 -5 0 2 1 7 5 3 ch1 2 ch2 0.1 10 1k 100 10k 100k 80 1.0 7 5 ch2 3 2 ch1 0.1 7 5 3 2 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 THD — Ta VCC1=1.5V VCC2=2.5V Vo=0.5mW RL=16Ω 7 5 3 2 1 7 5 3 ch2 2 0.1 -30 -20 ch1 -10 0 10 20 30 40 50 60 70 80 VCC1=1.5V VCC2=2.5V Vo=–10dBm RL=16Ω Rg=1kΩ 65 60 Crosstalk, CT — dB 70 CT — f 70 55 45 60 Ambient temperature, Ta — °C Frequency, f — Hz 50 50 VCC2=2.5V Vo=–20dBm RL=16Ω f=1kHz BPF=400 to 80kHz 10 Total harmonic distortion, THD — % Total harmonic distortion, THD — % 3 40 Supply voltage, VCC1 — V VCC=1.5V VCC2=2.5V Po=0.5mW RL=16Ω 80kHz LPF 5 30 3 2 0.01 0 THD — f 7 20 THD — VCC1 10 7 5 Supply voltage, VIN — dBm 10 10 Ambient temperature, Ta — °C ch2 ch1 Total harmonic distortion, THD — % Supply voltage, VCC1 — V 1→2 2→1 40 35 30 25 20 10 2 3 5 7 100 2 3 5 7 1k 2 3 5 7 10k 2 3 5 7 100k Frequency, f — Hz No. 6146-9/10 LA4801V Specifications of any and all SANYO 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 Electric 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 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 Electric 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 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 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 July, 2002. Specifications and information herein are subject to change without notice. PS No. 6146-10/10