BH3544F-E2 Rohm Semiconductor, BH3544F-E2 Datasheet
BH3544F-E2
Specifications of BH3544F-E2
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BH3544F-E2 Summary of contents
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... BH3541F, BH3544F, BH3547F, BH3548F is headphone amplifiers suitable for portable products. BH3541F has a fixed gain and BH3544F, BH3547F, BH3548F has a fixed gain of 6 dB. External resistors for gain setting are not needed. Package of BH3541F, BH3544F, BH3547F, BH3548F is pin-to-pin compatible (SOP8), enable to replace each other easily. ...
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... BH3541F,BH3544F,BH3547F,BH3548F ●Electrical characteristics (Unless otherwise noted, Ta=25°C,VCC=5V,RL=32Ω,f=1kHz,BW=400～30kHz BH3541F : VIN=0dBV, BH3544F, BH3547F, BH3548F : VIN =-6dBV) Parameter Symbol Quiescent current I Q Mute pin control voltage H V TMH Mute pin control voltage L V TML Gain G VC Gain difference between ΔG ...
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... Z 0.001 40 30 20 OUTPUT VOLTAGE : V (dBV) O Fig. 5 Total harmonic distortion vs. output voltage (1) BH3541F/BH3544F Fig. 8 Total harmonic distortion vs. output voltage (4) BH3541F/BH3544F Fig. 11 Ripple rejection vs. frequency 3/8 Technical Note BH3541F/BH3544F 10 Ta25C 32 f10kH Z 0.1 f1kH Z 0 ...
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... CV CC VCC OUT2 BIAS 10μ BIAS 0dB (6dB) TSD 0dB (6dB) MUTE 330μ OUT1 MUTE 1AC ( ) are BH3544F, BH3547F, BH3548F values. Fig. 14 4/8 Technical Note 5 180 k (90 k) 180 k (9 0k) SW5 1μ 47μ 2 IN2 180k (90k) 180k (90k) 4 SW3 GND IN1 1μ ...
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... IN2 2.1V 6 BIAS I/O (VCC=5V) 4 GND VCC I - ※The figure in the pin explanation and input/output equivalent circuit is reference value, it doesn’t guarantee the value. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Equivalent circuit BH3544F,BH3547F,BH3548F VCC 10k VCC 2 2 190k VCC ...
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... These are determined according to the lower cutoff frequency fc. Moreover, since lowering the capacitance can cause the occurrence of pop noise, when changing this, determine it after adequate checking. Since the input impedance of the BH3541F is 180kΩ and that of the BH3544F,BH3547F,BH3548F is 90kΩ, these are found by the expressions below, although drift, temperature characteristics, and other considerations are necessary. ...
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... Adequately evaluate use in a strong magnetic field, since there is a possibility of malfunction. 8) Pop noise countermeasures In order to prevent the pop noise that occurs when the power supply turns ON or OFF, make the rise and fall with reference to the timing diagram shown below. 1)BH3541F/ BH3544F/ BH3548F VCC OUT MUTE (A):Mute period (Use as pop noise countermeasure when power supply turns ON/OFF by makingVMUTE=Lo ...
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... BH3541F,BH3544F,BH3547F,BH3548F ●Ordering part number Part No. Part No. 3541 3544 3547 3548 SOP8 5.0±0.2 (MAX 5.35 include BURR) + 6° 4° −4° 0.595 0.17 S 0.1 S 1.27 0.42±0.1 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved Package F: SOP8 <Tape and Reel information> ...
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No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose ...