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| Ordering number : EN5661 Monolithic Linear IC LA4585M 3-V Preamplifier + Power Amplifier for Headphone Stereo Products Overview The LA4585M is a preamplifier plus power amplifier IC that supports auto-reverse and was developed for use in 3-V headphone stereo products. Features * The LA4585M is designed for use in playback-only compact cassette players. In addition to preamplifier and power amplifier functions, the LA4585M also provides low boost and automatic power output limiter (PVSS:Peak Volume Select System) functions. * Provided in a mini-flat 36-pin quad package (0.65 mm lead pitch) optimal for miniature end products. * Two auto-reverse playback preamplifiers * Two headphone power amplifiers (16 ) * Low boost function (auto-loudness effect) * Output limiter function (PVSS) * Two radio input switches (pre-muting switches) * Power muting switch Package Dimensions unit: mm 3162B-QFP36 [LA4585M] Allowable power dissipation, Pd max - mW Ambient temperature, Ta - C SANYO: QFP36 Specifications Maximum Ratings at Ta = 25C Parameter Maximum supply voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCC max Pd max Topr Tstg Conditions Ratings 4.5 375 -20 to +75 -40 to +150 Unit V mW C C Operating Conditions at Ta = 25C Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCCop Conditions Ratings 3.0 1.8 to 3.6 Unit V V SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 73097HA(OT) No. 5661-1/5 LA4585M Operating Characteristics at Ta = 25C, VCC = 3.0 V, fi = 1 kHz, 0.775 = 0 dBm, preamplifier RL = 10 k, low boost, power amplifier RL = 10 Parameter [PRE + LOW BOOST + PVSS + PWR] Quiescent current Voltage gain (closed loop) [PRE AMP] Voltage gain (open loop) Voltage gain (closed loop) Maximum output voltage Total harmonic distortion Equivalent input noise voltage Crosstalk Ripple rejection ratio [POWER AMP] Output voltage Voltage gain Total harmonic distortion Interchannel crosstalk Output noise voltage Ripple rejection ratio Input resistance DC offset voltage [LOW BOOST] Voltage gain ICCO1 ICCO2 VGT VG0 VG1 VO max1 THD1 VNI CT1 SVRR PO VG2 THD2 CT2 VNO1 Rr2 Ri VODC OFF Between pin 6 and pins 4 and 8 VG3 BST1 BST2 VO max2 THD3 CT3 VNO2 Rg = 2.2 k, low boost off, PVSS off Rg = 2.2 k, low boost on, PVSS on VO = -5 dBm VO = -5 dBm VO = -5 dBm THD = 1 %, VCC = 1.8 V VO = 0.2 V, VG = 40 dB/NAB Rg = 2.2 k, BPF = 20 Hz to 20 kHz Rg = 2.2 k, TUNE 1 kHz Rg = 2.2 k, VCC = 1.8 V, Vr = -20 dBm, fr = 100 Hz THD = 10 % VO = -5 dBm PO = 1 mW VO = -5 dBm, RV = 0 RV = 0 , BPF = 20 Hz to 20 kHz RV = 0 , Vr = -20 dBm, fr = 100 Hz, VCC = 1.8 V 12 12 62 70 0.1 15 15 64 83 40 0.2 0.05 1.3 80 50 34 29 0.4 40 25 55 30 38 +90 -5.3 18.2 10 0.5 5.0 21 21 67 mA A dB dB dB V % V dB dB mW dB % dB V dB k mV dB dB dB V % dB V dB 27 0.33 0.55 1.2 -82 -34 dB V V % dBm dBm dB 1.2 -59 % dBm Symbol Conditions Ratings min typ max Unit 0.5 2.0 60 40 23 27 30 45 22 -90 -2.3 11.2 7.0 0.25 25 45 22 0.13 0.25 -88 -40 30 -67 32 1.0 40 Vi = -30 dBm, boost on/off ViBST = -30 dBm, f = 100 Hz, boost on Boost* ViBST = -30 dBm, f = 10 kHz, boost on THD = 1%, boost on Maximum output voltage Total harmonic distortion VO = 0.1 V, boost on Interchannel crosstalk VO = -20 dBm, Rg = 0, boost on Rg = 0, BPF = 20 Hz to 20 kHz, boost on Output noise voltage Rg = 0, fR = 100 Hz, VR = -20 dBm, Ripple rejection ratio Rr3 VCC = 1.8 V, boost on [LOW BOOST + PVSS + POWER] The following items are measured at an RV of 10 k maximum. Voltage gain VG4 Vi = -40 dBm, f = 1 kHz, boost off/on Vi = -43 dBm, f = 100 Hz, boost on LOW BOOST output voltage VO1 Vi = -28 dBm, f = 100 Hz, boost on LOW BOOST output voltage VO2 LOW BOOST total harmonic distortion THD4 Vi = -40 dBm, f = 100 Hz, boost on Rg = 0, CCIR-ARM, boost off, with the power Output noise voltage VNO3 input switch K18 set to B. Vi = -40 dBm, PVSS 2 PVSS voltage VO3 The input amplitude between the start point and PVSS width WPVSS the point where the output is +4 dB. PVSS on PVSS harmonic distortion THD5 Vi = -40 dBm, PVSS 2 PVSS 2 PVSS start input level VOPi Note: *The amount of boost for a 1-kHz input. -3.8 14.7 8.5 0.4 0.1 32 2.0 53 24 0.23 0.40 0.5 -85 -37 40 0.5 -63 No. 5661-2/5 LA4585M Block Diagram Low boost Sys. cont No. 5661-3/5 LA4585M Test Circuit Diagram Low boost Sys. cont No. 5661-4/5 LA4585M Sample Application Circuit Low boost Sys. cont The use of polyester film or ceramic capacitors is recommended. However, capacitors whose capacitances are guaranteed for the operating temperature range of the end product should be used. s 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. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: 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: 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. s 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, 1997. Specifications and information herein are subject to change without notice. No. 5661-5/5 |
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