LA4801

Ordering number : ENN6146 Monolithic Linear IC LA4801V Headphone Stereo Power Amplifier Overview 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. Package Dimensions unit: mm 3178A-SSOP16 [LA4801V] 5.2 Functions • • • • Headphone stereo power amplifier Power switch Muting switch Center amplifier switch 16 9 4.4 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) Pd max — Ta Allowable power dissipation, Pdmax — mW 500 1 8 0.1 (1.3) 1.5max 0.15 0.22 0.65 (0.33) SANYO: SSOP16 (225 mil) 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 0.5 6.4 LA4801V Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Conditions Ratings 4.5 375 –15 to +50 –40 to +150 Unit V mW °C °C Operating Conditions at Ta = 25°C Parameter Recommended supply voltage Symbol VCC1 VCC2 VCC1 op VCC2 op RL * Conditions Ratings 1.5 2.5 0.9 to 4.5 1.5 to 3.5 16 to 32 Unit V V V V Ω Operating supply voltage range Recommended load resistance 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 Symbol ICCO1 Quiescent current ICCO2 ICCO3 ICCO4 Voltage gain Channel balance Output power Total harmonic distortion Output noise voltage Crosstalk Ripple rejection ratio Muting attenuation Output DC offset Power on current sensitivity Power off voltage sensitivity Mute off current sensitivity Mute on voltage sensitivity VG ∆VG PO THD VNO CT SVRR VOFF VDC OFF I1 ON V1 OFF I16 OFF V16 ON Conditions IC off: with pin 1 open. Mute on Center amplifier off: with pin 3 at Vref No input VO = –10 dBm VO = –10 dBm THD = 10% PO = 0.5 mW Rg = 1 kΩ, DIN AUDIO TUN1kHz, VO = –10 dBm VCC = 1.0 V, fr = 100 kHz, Vr = –20 dBm, TUN100Hz THD = 1%, TUN1kHz V1 = 0 V, Rg = 1 kΩ VCC1 = 0.9 V, VCC2 = 1.5 V, V5 ≥ 0.7 V VCC1 = 0.9 V, VCC2 = 1.5 V, V5 ≤ 0.1 V VCC1 = 0.9 V, VCC2 = 1.5 V, V5 ≥ 0.7 V VCC1 = 0.9 V, VCC2 = 1.5 V, V5 ≥ 0.7 V 0.5 35 60 –80 –20 20 0.6 4.0 0.9 6.0 1.0 10.3 –1 6 Ratings min typ 0.05 1.3 3.3 4.8 11.8 0 13 0.2 7.8 45 70 –96 +20 40 1.0 15 max 1.0 3.0 8.0 9.0 13.3 1 Unit µA mA mA mA dB dB mW % µV dB dB dB mV µV V µV V No. 6146-2/10 LA4801V Pin Assignment and Block Diagram PW SW 300k Ω 3k Ω 3k Ω 1 PW SW MT SW 16 MUTE SW 10k Ω 2 IN A PW A 15 OUT A PWR C CONT 1k Ω 3 PWC 14 PWR GND 4 10k Ω IN B PWB 13 OUT C 5 V REF 12 BIAS VREF OUT B 6 PRE GND 11 VCC 1 7 V REF CONT RIPPLE FILTER 10 RF CONT 8 RF OUT 9 VCC 2 Top view No. 6146-3/10 LA4801V Test Circuit Vcc 1 ON 100k Ω 1µF Vcc 2 OFF 1 OFF 1k Ω PW SW 300k Ω PW SW MT SW 16 MUTE SW ON OFF 1k Ω ON 0.15 µF 3k Ω VREF 10k Ω IN A OUT A 4.3 Ω 2Ω 4.3 Ω 2 PWA 15 3 PW C 3k Ω 14 PWR GND PWR C CONT 1k Ω 4 10k Ω IN B PWB 13 16 Ω OUT C SG 5 3.3 µF VREF 12 BIAS VREF OUT B 6 PRE GND 11 VCC 1 220 µF 0.15 µF 0.33 µF Vcc 1 3.3 µF V REF CONT RF CONT 4.7 µF 8 RF OUT 9 VCC 2 Top view 4.7 µF 7 RIPPLE FILTER 10 Vcc 2 No. 6146-4/10 16 Ω LA4801V Sample Application Circuit Vcc 1 ON R4 100k Ω Vcc 2 OFF 1 OFF C1 1µF PW SW 300k Ω PW SW MT SW 16 MUTE SW C11 1 µF ON VR 2 VREF OFF 10k Ω IN A PW A 3k Ω 15 OUT A R3 4.3 Ω C10 0.15 µF 3 ON C2 1µF PWR C CONT PW C 1k Ω 3k Ω 14 PWR GND VR 4 10k Ω IN B PWB 13 OUT C R2 2Ω C9 0.33 µF R1 4.3 Ω C8 0.15 µF C7 220 µF 5 3.3 µF C3 VREF 12 BIAS VREF OUT B 6 PRE GND 11 Vcc 1 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 Pin voltage (V) Pin description Equivalent circuit 1 1 POWER SW • IC on/off switch 20kΩ 2 4 POWER IN 0.82 • Power input 2 4 300Ω 10kΩ • Center amplifier on/off switch 3 POWER C CONT • The center amplifier is on when this input is floating or at the ground level. 5 VREF OUT 0.82 • VREF amplifier output 5 100kΩ 300Ω 300Ω 300Ω 3 6 PRE GND 7 VREF CONT 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) Pin description Equivalent circuit 8 RF OUT 2.17 • Ripple filter output 8 300Ω 9 VCC2 10 RF CONT 2.19 • Ripple filter reference 10 45kΩ 300Ω 3.9kΩ 30kΩ 11 VCC1 12 13 15 OUT B OUT C OUT A 0.69 • OUT A and OUT B are the power amplifier outputs. • Pin 13 (OUT C) is the center amplifier output. This pin is a virtual ground when driving headphones. 12 13 15 14 PWR GND • Mute on/off switch 16 MUTE SW • The mute function is on when this pin is at the ground level. 16 300Ω 200kΩ No. 6146-7/10 LA4801V Icco, IMute, Ist — VCC1 Icco, IMute, Ist — Ta No signal current, mute state current, ICCO, IMute — mA No signal current, mute state current, ICCO, IMute — mA 18 RL=16Ω Rg=1kΩ 16 VCC2=2.5V 14 12 10 8 6 4 2 0 0 0.5 0.9 0.8 0.7 0.6 0.5 0.4 10 9 8 7 6 5 4 3 2 1 0 -30 -20 -10 Standby current, Ist — µA 0.07 Icco 0.06 0.05 0.04 0.03 Icco 0.3 0.2 IMute Ist 0 10 20 30 40 50 60 70 0.02 0.01 0 80 IMute 1.0 1.5 2.0 2.5 3.0 3.5 Ist 4.0 4.5 0.1 0 5.0 Supply voltage, VCC1 — V 100 7 Ambient temperature, Ta — °C Rg=1kΩ VCC2=2.5V DIN AUDIO 90 VNO — VCC1 SVRR — VCC1 ch1 Ripple rejection ratio, SVRR — dB Output noise voltage, VNO — µV 5 3 2 80 70 60 50 40 30 20 0 ch2 10 7 5 3 2 ch1 ch2 1.0 0 RL=16Ω Rg=1kΩ fr=100Hz VCR=–20dBm Tun100Hz 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Supply voltage, VCC1 — V 20 18 16 Supply voltage, VCC1 — V 14 Po — VCC1 VCC2=2.5V RL=16Ω f=1kHz THD=10% VG — VCC1 VCC2=2.5V RL=16Ω f=1kHz Vo=–20dBm ch1 ch2 13 14 Voltage gain, VG — dB Output power, PO — W ch1 ch2 12 12 10 8 6 4 2 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 11 10 9 8 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Supply voltage, VCC1 — V 40 35 Supply voltage, VCC1 — V 16 15 VG — f VCC1=1.5V VCC2=2.5V Vo=–10dBm RL=16Ω VG — Ta VCC1=1.5V VCC2=2.5V Vo=–20dB RL=16Ω Voltage gain, VG — dB 30 25 20 15 10 5 0 10 Voltage gain, VG — dB 14 13 12 11 10 9 8 -30 ch2 ch1 ch1 ch2 100 1k 10k 100k -20 -10 0 10 20 30 40 50 60 70 80 Frequency, f — Hz Ambient temperature, Ta — °C No. 6146-8/10 Standby current, Ist — µA Rg=1kΩ RL=16Ω VCC1=1.5V VCC2=2.5V 0.1 0.09 0.08 LA4801V VREF, VO — VCC1 VCC2=2.5V 2.0 1.8 1.4 1.2 VREFDC, VN — Ta 1.6 Rg=1kΩ RL=16Ω VCC1=1.5V VCC2=2.5V VREFDC, VN — mA 1.4 1.0 VREF, VO — V 1.2 1.0 0.8 0.6 0.4 VREFDC 0.8 0.6 0.4 0.2 VREF OUTA, B, C VN 0.2 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 -30 -20 -10 0 10 20 30 40 50 60 70 80 Supply voltage, VCC1 — V 100 R =16Ω 7L 5 Rg=1kΩ 3 BPF=400Hz 2 10 7 5 3 2 1.0 7 5 3 2 0.1 -40 -35 -30 Ambient temperature, Ta — °C 10 7 5 3 2 1.0 7 5 3 2 0.1 7 5 3 2 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 THD — VIN Total harmonic distortion, THD — % THD — VCC1 VCC2=2.5V Vo=–20dBm RL=16Ω f=1kHz BPF=400 to 80kHz ch2 ch1 Total harmonic distortion, THD — % f=1kHz to 80kHz ch2 ch1 ch1 ch2 -25 -20 -15 -10 -5 0 0.01 0 Supply voltage, VIN — dBm 10 Supply voltage, VCC1 — V 10 THD — f Total harmonic distortion, THD — % VCC=1.5V VCC2=2.5V Po=0.5mW RL=16Ω 80kHz LPF THD — Ta VCC1=1.5V VCC2=2.5V Vo=0.5mW RL=16Ω Total harmonic distortion, THD — % 7 5 3 2 7 5 3 2 1 7 5 3 2 1 7 5 3 2 ch1 ch2 ch2 ch1 -10 0 10 20 30 40 50 60 70 80 0.1 10 100 1k 10k 100k 0.1 -30 -20 Frequency, f — Hz 70 65 60 Ambient temperature, Ta — °C VCC1=1.5V VCC2=2.5V Vo=–10dBm RL=16Ω Rg=1kΩ CT — f Crosstalk, CT — dB 55 50 45 40 35 30 25 20 10 23 5 7 100 2 3 5 7 1k 23 1→2 2→1 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