Ordering number : EN5701 Monolithic Linear IC LA4582CM Pre + Power Amplifier for 3-V Headphone Stereo Systems Overview The LA4582CM is a preamplifier plus power amplifier IC that support auto-reverse, and was developed for 3-V headphone stereo systems. Features • The LA4582CM was developed for cassette playback systems, and in addition to preamplifier and power amplifier functions, it also provides low boost and automatic power limitation (PVSS: Peak Volume Select System) functions. • Provided in a 36-pin miniature flat package (0.65 mm lead pitch) that is optimal for set miniaturization. • Capable of driving 8-Ω speakers • Two-channel playback auto-reverse preamplifier • Two-channel headphone power amplifier • Low-frequency boost function (auto-loudness effect) • Output suppression function (PVSS) • Two-channel radio input switch (pre-mute switch) • Power mute switch Package Dimension unit: mm Allowable power dissipation, Pdmax – mW [LA4582CM] SANYO: QFP36 Ambient temperature, Ta – °C 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 –20 to +75 °C Storage temperature Tstg –40 to +150 °C Ratings Unit Operating Conditions at Ta = 25°C Parameter Recommended supply voltage Operating voltage range Symbol VCC VCC op Conditions 3.0 V 1.8 to 3.6 V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 63097HA(OT) No. 5701-1/6 LA4582CM Operating Characteristics at Ta = 25°C, VCC = 3.0 V, fi = 1 kHz, 0.775 V = 0 dBm RL = 10 kΩ (preamplifier), RL = 30 kΩ (low boost), RL = 16 Ω (power amplifier) Parameter Symbol Conditions Ratings min typ Unit max [PRE + L.BOOST + PVSS + POWER] Quiescent current Voltage gain (closed loop) ICCO1 Rg = 2.2 kΩ, low boost off, PVSS off 13 19 29 mA ICCO2 Rg = 2.2 kΩ, low boost on, PVSS on 14 20 30 mA 64.5 67.5 dB VGT VO = –5 dBm 62.5 Voltage gain (open loop) VG0 VO = –5 dBm 70 Voltage gain (closed loop) VG1 VO = –5 dBm [Preamplifier] Maximum output voltage VO max1 Total harmonic distortion THD1 THD = 1%, VCC = 1.8 V 0.1 VO = 0.2 V, VG = 40 dB/NAB 83 dB 40 dB 0.2 V 0.05 0.5 % 1.3 2.0 µV Equivalent input noise voltage VNI Rg = 2.2 kΩ, BPF = 20 Hz to 20 kHz Crosstalk CT1 Rg = 2.2 kΩ, TUNE 1 kHz 60 80 dB Rr1 Rg = 2.2 kΩ, VCC = 1.8 V, Vr = –20 dBm, fr = 100 Hz 40 50 dB PO THD = 10% 23 34 VO = –5 dBm 27 29 32 0.4 1.0 Ripple rejection [Power Amplifier] Output power Voltage gain (closed loop) Total harmonic distortion VG2 THD2 PO = 1 mW Interchannel crosstalk CT2 VO = –5 dBm, RV = 0 Ω Output noise voltage VNO1 RV = 0 Ω, BPF = 20 Hz to 20 kHz Ripple rejection Input resistance DC offset voltage Rr2 RV = 0 Ω, Vr = –20 dBm fr = 100 Hz, VCC = 1.8 V Ri VODC OFF Between pin 8 and pins 4 to 6 30 mW 40 25 45 55 22 30 –90 dB % dB 40 µV dB 38 kΩ +90 mV [L· BOOST] Voltage gain Boost VG3 VIN = –30 dBm, boost: on/off –2.3 –3.8 –5.3 dB BST1 VINBST = –30 dBm, f = 100 Hz, boost: on 11.2 14.7 18.2 dB BST2 10 dB 0.5 % 5.0 µV VINBST = –30 dBm, f = 10 Hz, boost: on 7.0 8.5 Maximum output voltage VO max2 THD = 1%, boost: on 0.3 0.5 Total harmonic distortion THD3 VO = 0.1 V, boost: on Interchannel crosstalk CT3 VO = –20 dBm, Rg = 0, boost: on Output noise voltage VNO2 Rg = 0, BPF = 20 Hz to 20 kHz, boost: off Ripple rejection Rr3 Rg = 0, fR = 100 Hz, VR = –20 dBm, VCC = 1.8 V, boost: on VG4 VO1 0.04 25 V 32 2.0 dB 45 53 dB VIN = –40 dBm, f = 1 kHz, boost: on/off 22.0 24.5 28.0 dB VIN = –43 dBm, f = 100 Hz, boost: on 0.13 0.23 0.33 V VO2 VIN = –28 dBm, f = 100 Hz, boost: on 0.25 0.4 0.55 V THD4 VIN = –40 dBm, f = 100 Hz, boost: on 0.5 1.2 % –40 –37 –34 dBm 30 40 0.5 1.2 % –67 –63 –59 dBm [L· BOOST + PVSS + POWER] RV = 30 kΩ max Voltage gain Low boost output voltage Low boost total harmonic distortion PVSS voltage VO3 VIN = –40 dBm, PVSS2 WPVSS Input increment between the point where operation starts and the point where the output is +4 dB from there. PVSS: on PVSS total harmonic distortion THD5 VIN = –40 dBm, PVSS2 PVSS start input VOPIN PVSS2 PVSS width dB Note: The amount of boost for a 1-kHz signal. No. 5701-2/6 LA4582CM Block Diagram Unit (Resistance: Ω) No. 5701-3/6 LA4582CM Test Circuit LP.2 Unit (Resistance: Ω, Capacitance: F) No. 5701-4/6 LA4582CM Sample Application Circuit PRE. MUTE Unit (Resistance: Ω, Capacitance: F) No. 5701-5/6 LA4582CM ■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. ■ Anyone purchasing any products described or contained herein for an above-mentioned use shall: ➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: ➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. ■ 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 June, 1997. Specifications and information herein are subject to change without notice. No. 5701-6/6