BD37524FS-E2 ROHM [Rohm], BD37524FS-E2 Datasheet
BD37524FS-E2
Related parts for BD37524FS-E2
BD37524FS-E2 Summary of contents
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... BD37524FS ●Description BD37524FS is sound processors built-in 3-band equalizer for car audio. The functions are stereo 5ch input selector, input-gain control, main volume, loudness, 5ch fader volume, LPF for subwoofer, level meter. Moreover, “Advanced switch circuit”, that is ROHM original technology, can reduce various switching noise (ex. No-signal, low frequency likes 20Hz & ...
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... BD37524FS ●Line up matrix Function ・Stereo 4 input Input selector ・Differential 1 input ・0～20dB（1dB step） Input gain ・Possible to use “Advanced switch” for prevention of switching noise. ・Possible to use “Advanced switch” for prevention of switching noise. Mute ・+15dB～-79dB（1dB step）, -∞ ...
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... BD37524FS ●Electrical characteristics (Unless specified particularly, Ta=25℃, VCC=8.5V, f=1kHz, Vin=1Vrms, Rg=600Ω, R Mute off, Volume 0dB, Tone control 0dB, Loudness 0dB, LPF OFF, Fader 0dB) Item Current upon no signal Voltage gain Channel balance Total harmonic distortion 1 (FRONT,REAR) Total harmonic distortion 2 (SUBWOOFER) Output noise voltage 1 (FRONT,REAR)＊ ...
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... BD37524FS Item Maximum boost gain Maximum cut gain Gain set error Maximum boost gain Maximum cut gain Gain set error Maximum boost gain Maximum cut gain Gain set error Maximum boost gain Maximum attenuation＊ Gain set error Attenuation set error 1 ...
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... BD37524FS ●Electrical characteristic curves (Reference data VCC[V] Fig Vcc 2 5 BASS GAIN : -20～+20dB 2 0 /1dB step fo : 60Hz Frequency [Hz] Fig ...
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... BD37524FS 1000 Din-Audio IHF-A 100 10 1 -80 -70 -60 -50 -40 -30 -20 - Volume Gain[dB] Fig.13 Volume Gain vs Noise 1000 DIN-Audio IHF-A 100 10 1 -20 -15 - Treble Gain [dB] Fig.16 Treble Gain vs Noise Fig.19 Advanced Switch 1 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. ...
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... Band P-EQ (Tone control) ★Volume/Mute ★Input Gain Input selector (4 single-end and 1 stereo ISO) GND GND ISO amp ISO amp 100k 100k 100k 250k 250k 250k Fig.22 BD37524FS Terminal Description No 7/25 Technical Note ...
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... BD37524FS ●Timming Chart CONTROL SIGNAL SPECIFICATION (１) Electrical specifications and timing for bus lines and I/O stages SDA t BUF t LOW SCL t HD;STA S P Table 1 Characteristics of the SDA and SCL bus lines for I (Unless specified particularly, Ta=25℃, VCC=8.5V) 1 SCL clock frequency 2 Bus free time between a STOP and START condition Hold time (repeated) START condition ...
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... BD37524FS Table 2 Characteristics of the SDA and SCL I/O stages for I 10 LOW level input voltage: 11 HIGH level input voltage: Pulse width of spikes which must be suppressed by the input filter LOW level output voltage: at 3mA sink current Input current each I/O pin with an input voltage between 0.4V and 14 4 ...
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... BD37524FS （２） BUS FORMAT MSB LSB S Slave Address 1bit 8bit S Slave Address A Select Address = Select every of volume, bass and treble. Data P 2 （３）I C BUS Interface Protocol 1）Basic form S Slave Address A MSB LSB MSB 2）Automatic increment (Select Address increases (+1) according to the number of data. ...
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... BD37524FS （５）Select Address & Data Select MSB Address Items D7 (hex) Advanced switch Initial setup 1 01 ON/OFF LPF Initial setup 2 02 Phase Initial setup Input Selector 05 0 Mute Input gain 06 ON/OFF Volume gain 20 Fader 1ch Front 28 Fader 2ch Front ...
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... BD37524FS Select address 01 (hex) MSB Time D7 0.6msec Advanced 1.0msec Switch 1.4msec ON/OFF 3.2msec MSB Time D7 4.7 msec Advanced 7.1 msec Switch 11.2 msec ON/OFF 14.4 msec MSB Mode D7 OFF Select address 02(hex) MSB fc D7 OFF 55Hz 85Hz LPF Phase 120Hz 160Hz Prohibition MSB Mode ...
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... BD37524FS Select address 05(hex) OUT OUT MSB Mode F1/R1 F2/ diff CP1 CP2 Input SHORT Prohibition Input SHORT：The input impedance of each input terminal is lowered from 100kΩ(TYP kΩ(TYP). (For quick charge of coupling capacitor) ...
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... BD37524FS Select address 20, 28, 29, 2A, 2B, 2C (hex) MSB Gain & ATT Prohibition ： 0 15dB 0 14dB 0 13dB 0 ： ： -77dB 1 -78dB 1 -79dB 1 1 Prohibition ： 1 -∞dB 1 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. Vol, Fader Gain / Attenuation ...
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... BD37524FS Select address 41(hex) MSB Q factor D7 0.5 1.0 0 1.5 2.0 MSB fo D7 60Hz 80Hz 0 100Hz 120Hz Select address 44(hex) MSB Q factor D7 0.75 1.0 0 1.25 1.5 MSB fo D7 500Hz 1kHz 0 1.5kHz 2.5kHz Select address 47 (hex) MSB Q factor D7 0.75 0 1.25 MSB fo D7 7.5kHz 10kHz 0 12.5kHz 15kHz www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. ...
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... BD37524FS Select address 51, 54, 57 (hex) MSB Gain D7 0dB 1dB 2dB 3dB 4dB 5dB 6dB 7dB 8dB 9dB 10dB Bass/ 11dB Middle/ 12dB Treble Boost 13dB /cut 14dB 15dB 16dB 17dB 18dB 19dB 20dB Prohibition MSB Mode D7 Boost 0 Cut 1 www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. ...
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... BD37524FS Select address 75 (hex) MSB Mode D7 Hicut1 Hicut2 0 Hicut3 Hicut4 MSB Gain D7 0dB 1dB 2dB 3dB 4dB 5dB 6dB 7dB 8dB 9dB 10dB 11dB 0 12dB 13dB 14dB 15dB 16dB 17dB 18dB 19dB 20dB Prohibition （６）About power on reset supply voltage circuit made initialization inside IC is built-in. Please send data to all address as initial data at supply voltage on ...
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... BD37524FS Volume / Fader volume attenuation of the details ( ...
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... BD37524FS About Level meter （１） The operation of circuit Level meter is a function which gives DC voltage proportional to the size of signal of sound. It detects the peak level of signal and keeps the peak level, so that it is possible to monitor the size of signal by resetting DC voltage kept with suitable interval. ...
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... BD37524FS ●Application circuit GND SDA SCL 24 23 GND BUS LOGIC ■Fader Gain:+15dB～-79ｄB/1dB step ★no pop noise ■LPF fc=55/85/120/160Hz ■Loudness Gain:20dB～0ｄB/1ｄB step ★no pop noise ・ｆ0=250/400/800Hz ・Hicut:1/2/3/4 ■3 Band P-EQ (Tone control) Gain：+20dB～-20dB/1dB step ★ ...
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... BD37524FS ●Interfaces Terminal Terminal Terminal No. Name Voltage 4. CP1 CP2 MUTE － 16 OUTS1 17 OUTR2 18 OUTR1 4.25 19 OUTF2 20 OUTF1 The figure in the pin explanation and input/output equivalent circuit is reference value, it doesn’t guarantee the value. ...
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... BD37524FS Terminal Terminal Terminal No. Name Voltage 21 VCC 8.5 22 SCL － 23 SDA － 24 GND 0 1 FIL 4.25 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 Vcc 1 ...
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... BD37524FS ●Notes for use 1. Absolute maximum rating voltage When it impressed the voltage on VCC more than the absolute maximum rating voltage, circuit currents increase rapidly, and there is absolutely a case to reach characteristic deterioration and destruction of a device. In particular in a serge examination of a set, when it is expected the impressing serge at VCC terminal (21pin), please do not impress the large and over the absolute maximum rating voltage (including a operating voltage + serge ingredient (around 14V)) ...
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... BD37524FS ●Thermal Derating Curve About the thermal design by the IC Characteristics have a great deal to do with the temperature at which it is used, and exceeding absolute maximum ratings may degrade and destroy elements. Careful consideration must be given to the heat of the IC from the two standpoints of immediate damage and long-term reliability of operation. ...
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... BD37524FS ●Ordering part number Part No. Part No. 37524 SSOP-A24 10 ± 0.2 4° (MAX 10.35 include BURR 0.17 −0.05 0.1 0.38±0.1 0.8 (Unit : mm) www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved Package FS : SSOP-A24 <Tape and Reel information> +6° −4° Tape Embossed carrier tape ...
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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 ...