BH3547F-E2 Rohm Semiconductor, BH3547F-E2 Datasheet
BH3547F-E2
Specifications of BH3547F-E2
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BH3547F-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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... BH3541F,BH3544F,BH3547F,BH3548F ●Reference data (Continued) BH3541F/BH3544F Fig. 4 Voltage gain vs. frequency BH3541F/BH3544F Fig. 7 Total harmonic distortion vs. output voltage (3) BH3541F/BH3544F Fig. 10 MUTE attenuation vs. frequency www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. BH3541F/BH3544F 10 Ta25C 32 f10kH Z 0.1 f1kH Z 0.01 f100H 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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... VCC 180k BIAS VCC 60k 6 6 BIAS 60k - - 5/8 Technical Note Function BH3547F VCC Output pin 10k VCC Mute control pin Mute on:Hi Mute off:Lo (open) 200k VCC Input pin 90k BIAS Bias pin VCC (Since the 47 µF externally attached 70k ...
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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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... ON/OFF by makingVMUTE=Lo.) (B):Mute cancellation period (This has a time constant because it is used by the externally attached C2 and pop noise countermeasure on mute cancellation careful of the timing.) (C):Mute start time (As on cancellation, this has a time constant.) 2)BH3547F VCC (A) Vmute ...
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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 ...