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1 BD37533FV Sound Processor Series for Car Audio Sound Processors with Built-in 3-band Equalizer No.10085EAT06 BD37531FV,BD37532FV,BD37533FV,BD37534FV Description BD37531FV, BD37532FV, BD37533FV, BD37534FV are sound processors built-in 3-band equalizer for car audio. The functions are stereo input selector available to switch single end input and ground isolation input, input-gain control, main volume, loudness, 5ch fader volume, LPF for subwoofer(except BD37531FV), mixing input(except BD37531FV, BD37532FV). Moreover, Advanced switch circuit, that is ROHM original technology, can reduce various switching noise (ex. No-signal, low frequency likes 20Hz & large signal inputs). Advanced switch makes control of microcomputer easier, and can construct high quality car audio system. Features 1) Reduce switching noise of input gain control, mute, main volume, fader volume, bass, middle, treble, loudness by using advanced switch circuit [Possible to control all steps] 2) Built-in differential input selector that can make various combination of single-ended / differential input. 3) Built-in ground isolation amplifier inputs, ideal for external stereo input. 4) Built-in input gain controller reduces switching noise for volume of a portable audio input. 5) Decrease the number of external components by built-in 3-band equalizer filter, LPF for subwoofer (except BD37531FV), loudness filter. And, possible to control Q, Gv, fo of 3-band equalizer and fc of LPF, Gv of loudness by I 2 C BUS control freely 6) It is possible for the bass, middle, treble to the gain adjustment quantity of ±20dB and 1 db step gain adjustment. 7) Terminals for the subwoofer outputs are equipped, and the audio signal outputs of front, back and subwoofer can be chosen with the I2C BUS control. 8) Built-in mixing input, mixing attenuator. (except BD37531FV, BD37532FV) 9) Bi-CMOS process is suitable for the design of low current and low energy. And it provides more quality for small scale regulator and heat in a set. 10) Package is SSOP-B28. Putting input-terminals together and output-terminals together can make PCB layout easier and can makes area of PCB smaller. 11) It is possible to control by 3.3V / 5V for I 2 C BUS. Applications It is the optimal for the car audio. Besides, it is possible to use for the audio equipment of mini Compo, micro Compo, TV etc with all kinds. 1/37

2 Line up matrix Function BD37531FV BD37532FV BD37533FV BD37534FV Input selector Input gain Mute Volume Bass Middle Treble Fader Loudness LPF Mixing Level meter Specifications (Stereo input) Single-End/Diff/Full-Diff (Possible to set the number of single-end/diff/full-diff as follows ) Single-End Differential Full-Differential Mode Mode Mode Mode Mode Mode Table.1 Combination of input selector 020dB1dB step Possible to use Advanced switch for prevention of switching noise. Possible to use Advanced switch for prevention of switching noise. +15dB-79dB1dB step, - Possible to use Advanced switch for prevention of switching noise dB1dB step Q=0.5, 1, 1.5, 2 fo=60, 80, 100, 120Hz Possible to use Advanced switch at changing gain dB1dB step Q=0.75, 1, 1.25, 1.5 fo=500, 1k, 1.5k 2.5kHz Possible to use Advanced switch at changing gain dB1dB step Q=0.75, 1.25 fo=7.5k, 10k, 12.5k, 15kHz Possible to use Advanced switch at changing gain +15dB-79dB(1dB step), -db (BD37531FV : 0dB-79dB, -db) Possible to use Advanced switch for prevention of switching noise. 0dB20dB(1dB step) fo=250/400/800hz Possible to use Advanced switch for prevention of switching noise. fc=55/85/120/160hz, pass Phase shift (0 /180 ) Monaural input +7dB-79dB1dB step, - Possible to use Advanced switch for prevention of switching noise. I2C BUS control DC Output 2/37

3 Absolute maximum ratings (Ta=25) Item Symbol Rating Unit Power supply Voltage VCC 10.0 V Input voltage Vin VCC+0.3GND-0.3 V Power Dissipation Pd mw Storage Temperature Tastg This value decreases 8.5mW/ for Ta=25 or more. ROHM standard board shall be mounted. Thermal resistance ja = 117.6(/W) ROHM Standard board Size () MaterialA FR4 grass epoxy board(3% or less of copper foil area) Operating conditions Item Symbol MIN TYP MAX Unit Power supply Voltage VCC V Temperature Topr /37

4 Electrical characteristics (Unless specified particularly, Ta=25, VCC=8.5V, f=1khz, Vin=1Vrms, Rg=600, R L=10k, A1 input, Input gain 0dB, Mute off, Volume 0dB, Tone control 0dB, Loudness 0dB, LPF OFF(BD37532FV,BD37533FV,BD37534FV), Mixing OFF(BD37533FV,BD37534FV), Fader 0dB) Limit Item Symbol Unit Condition Min. Typ. Max. Current upon no signal I Q ma No signal Voltage gain G V db Gv=20log(VOUT/VIN) Channel balance CB db CB = GV1-GV2 Total harmonic distortion 1 VOUT=1Vrms THD+N (FRONT,REAR) BW=400-30KHz Total harmonic distortion 2 VOUT=1Vrms THD+N (SUBWOOFER) BW=400-30KHz Output noise voltage 1 Rg = 0 V (FRONT,REAR) NO Vrms BW = IHF-A Output noise voltage 2 Rg = 0 V (SUBWOOFER) NO Vrms BW = IHF-A Fader = -db Residual output noise voltage V NOR Vrms Rg = 0 BW = IHF-A Cross-talk between channels CTC db Rg = 0 CTC=20log(VOUT/VIN) BW = IHF-A Ripple rejection RR db Input impedance(a, B, C) R IN_S k Input impedance (D, E) R IN_D k Maximum input voltage V IM Vrms Cross-talk between selectors CTS db Common mode rejection ratio (D, E) CMRR db Minimum input gain G IN MIN db Maximum input gain G IN MAX db f=1khz VRR=100mVrms RR=20log(VCC IN/VOUT) VIM at THD+N(VOUT)=1 BW=400-30KHz Rg = 0 CTS=20log(VOUT/VIN) BW = IHF-A XP1 and XN input XP2 and XN input CMRR=20log(VIN/VOUT) BW = IHF-A,[XD,E] Input gain 0dB VIN=100mVrms Gin=20log(VOUT/VIN) Input gain +20dB VIN=100mVrms Gin=20log(VOUT/VIN) Gain set error G IN ERR db GAIN=+20+1dB Mute attenuation G MUTE db Maximum gain G V MAX db Maximum attenuation G V MIN db Mute ON Gmute=20log(VOUT/VIN) BW = IHF-A Volume = 15dB VIN=100mVrms Gv=20log(VOUT/VIN) Volume = -db Gv=20log(VOUT/VIN) BW = IHF-A Attenuation set error 1 G V ERR db GAIN & ATT=+15dB-15dB Attenuation set error 2 G V ERR db ATT=-16dB-47dB Attenuation set error 3 G V ERR db ATT=-48dB-79dB 4/37

5 Item Symbol Limit Min. Typ. Max. Unit Condition Gain=+20dB f=100hz Maximum boost gain G B BST db VIN=100mVrms G B=20log (VOUT/VIN) Gain=-20dB f=100hz Maximum cut gain G B CUT db VIN=2Vrms G B=20log (VOUT/VIN) Gain set error G B ERR db Gain=-20+20dB f=100hz Gain=+20dB f=1khz Maximum boost gain G M BST db VIN=100mVrms G M=20log (VOUT/VIN) Gain=-20dB f=1khz Maximum cut gain G M CUT db VIN=2Vrms G M=20log (VOUT/VIN) Gain set error G M ERR db Gain=-20+20dB f=1khz Gain=+20dB f=10khz Maximum boost gain G T BST db VIN=100mVrms G T=20log (VOUT/VIN) Gain=-20dB f=10khz Maximum cut gain G T CUT db VIN=2Vrms G T=20log (VOUT/VIN) Gain set error G T ERR db Gain=-20+20dB f=10khz Input impedance R IN_M k Maximum input voltage V IM_M Vrms VIM at THD+N(VOUT)=1 BW=400-30KHz MIX=OFF Maximum attenuation G MX MIN db G MX=20log(VOUT/VIN) BW=INF-A Maximum gain G MX MAX db Maximum boost gain (BD37532FV,BD37533FV,BD37534FV) G F BST db Maximum attenuation G F MIN db ATT=+6dB G MX=20log(VOUT/VIN) Fader=15dB V IN=100mVrms G F=20log(VOUT/VIN) Fader = -db G F=20log(VOUT/VIN) BW = IHF-A Gain set error (BD37532FV,BD37533FV,BD37534FV) G F ERR db Gain=+1+15dB Attenuation set error 1 G F ERR db ATT=-1-15dB Attenuation set error 2 G F ERR db ATT=-16-47dB Attenuation set error 3 G F ERR db ATT=-48-79dB Output impedance R OUT - 50 VIN=100mVrms Maximum output voltage V OM Vrms THD+N=1 BW=400-30KHz Gain 20dB Maximum gain G L MAX db VIN=100mVrms G L=20log(VOUT/VIN) Gain set error G L ERR db GAIN=+20+1dB Maximum output voltage V L MAX V Output offset voltage V L OFF mv 5/37

6 Electrical characteristic curves (Reference data) Fig.1 Iq vs Vcc THD+N (% THD+N[%] kHz 1 1kHz 100Hz Vout [Vrms] Fig.2 Thd Vout (V) vs Vo Vin[Vrms] Vou Gain[dB] Gain (db Gain=0dB k 10k 100k -2 Frequency [Hz] Frequency (Hz) Fig.12 Fig.3 Gain Gain vs vs Freq Freq Gain[dB] BASS GAIN : dB /1dB step fo : 60Hz Q : k 10k 100k Frequency [Hz] Fig.4 Bass Gain vs Freq Gain[dB] fo : 60/80/100/120Hz BASS GAIN : 20dB Q : k 10k 100k Frequency [Hz] Fig.5 Bass fo vs Freq Gain[dB] Q : 0.5/1/1.5/2 BASS GAIN : 20dB fo : 60Hz k 10k 100k Frequency [Hz] Fig.6 Bass Q vs Freq Gain[dB] 25 MIDDLE GAIN : dB /1dB step fo : 500Hz Q : k 10k 100k Frequency [Hz] Fig.7 Middle Gain vs Freq Gain[dB] fo : 500/1k/1.5k/2.5kHz k 10k 100k Frequency [Hz] Fig.8 Middle fo vs Freq Gain[dB] Q : 0.75/1/1.25/ MIDDLE GAIN : dB -20 fo : 500Hz k 10k 100k Frequency [Hz] Fig.9 Middle Q vs Freq Gain (db) Gain[dB] TREBLE GAIN:-20+20dB /1dB step fo : 7.5kHz Q : k 10k 100k Frequency [Hz] Frequency (Hz) Gain[dB] fo : 7.5k/10k/12.5k/15kHz TREBLE GAIN : 20dB Q : k 10k 100k Frequency [Hz] Gain (db) Gain[dB] Q : 0.75/1.25 TREBLE GAIN : 20dB fo : 7.5kHz k 10k 100k Frequency [Hz] Frequency (Hz) Fig.10 Treble Gain vs Freq Fig.11 Treble fo vs Freq Fig.12Treble Q vs Freq 6/37

7 Output Noise[uVrms] Output Noise[uVrms] Output Noise[uVrms] Fig.13 Volume Gain vs Noise Fig.14 Bass Gain vs Noise Fig.15 Middle Gain vs Noise Output Noise[uVrms] Gain Gain[dB] (db Vo [Vrms] Fig.16 Treble Gain vs Noise k 10k 100k Frequency [Hz] Frequency (Hz) Fig.17 CMRR vs Freq Rload [ohm] Fig.18 Rload vs Vo Vout[V] Fig.19 Advanced Switch 1 Fig.20 Advanced Switch Vin [Vrms] Fig.21 Level Meter Vin vs Vo Fig.21 : Level Meter function is available only BD37534FV 7/37

8 Block diagram and pin configuration Fig.22 BD37531FV Descriptions of terminal 8/37

9 Fig.23 BD37532FV Descriptions of terminal 9/37

10 Fig.24 BD37533FV Descriptions of terminal 10/37

11 Fig.25 BD37534FV Descriptions of terminal 11/37

12 Timming Chart Fig.26 Definition of timing on the I 2 C-bus Table 1 Characteristics of the SDA and SCL bus lines for I 2 C-bus devices (Unless specified particularly, Ta=25, VCC=8.5V) All values referred to VIH min. and VIL max. Levels (see Table 2). * A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the VIH min. of the SCL signal) in order to bridge the undefined region of the falling edge of SCL. About 7(tHD;DAT), 8(tSU;DAT), make it the setup which a margin is fully in. 12/37

13 Table 2 Characteristics of the SDA and SCL I/O stages for I 2 C-bus devices 13/37

14 14/37

15 Note In function changing of the hatching part, it works Advanced switch. Upon continuous data transfer, the Select Address is circulated by the automatic increment function, as shown below. For the function of input selector and subwoofer output select etc, it is not corresponded for advanced switch. Therefore, please apply mute on the side of a set when changes these setting. When using mute function of this IC at the time of changing input selector, please switch mute ON/OFF for waiting advanced-mute time. 15/37

16 Note In function changing of the hatching part, it works Advanced switch. Upon continuous data transfer, the Select Address is circulated by the automatic increment function, as shown below. For the function of input selector and subwoofer output select etc, it is not corresponded for advanced switch. Therefore, please apply mute on the side of a set when changes these setting. When using mute function of this IC at the time of changing input selector, please switch mute ON/OFF for waiting advanced-mute time. 16/37

17 Note In function changing of the hatching part, it works Advanced switch. Upon continuous data transfer, the Select Address is circulated by the automatic increment function, as shown below. For the function of input selector and subwoofer output select etc, it is not corresponded for advanced switch. Therefore, please apply mute on the side of a set when changes these setting. When using mute function of this IC at the time of changing input selector, please switch mute ON/OFF for waiting advanced-mute time. 17/37

18 Note In function changing of the hatching part, it works Advanced switch. Upon continuous data transfer, the Select Address is circulated by the automatic increment function, as shown below. For the function of input selector and subwoofer output select etc, it is not corresponded for advanced switch. Therefore, please apply mute on the side of a set when changes these setting. When using mute function of this IC at the time of changing input selector, please switch mute ON/OFF for waiting advanced-mute time. 18/37

19 Select address 01 (hex) 19/37

20 1ch signal input 2ch signal input 1ch signal input 2ch signal input EP1 10 EN1 11 EN2 12 EP2 13 EP1 10 EN1 11 EN2 12 EP2 13 1ch Differential 2ch Differential 1ch Differential 2ch Differential 20/37

21 21/37

22 22/37

23 23/37

24 24/37

25 25/37

26 26/37

27 I 2 CBUS LOUT [ V ] (RESET) RESET START (HOLD) HOLD START Wait time (25msec) fin40hz detect t 27/37

28 Application circuit Unit R : [] C : [F] 28/37

29 Unit R : [] C : [F] 29/37

30 Unit R : [] C : [F] 30/37

31 Unit R : [] C : [F] 31/37

32 Interfaces The figure in the pin explanation and input/output equivalent circuit is reference value, it doesn t guarantee the value. 32/37

33 Vcc 50k 50k GND Vcc 27k GND The figure in the pin explanation and input/output equivalent circuit is reference value, it doesn t guarantee the value. 33/37

34 Notes for use CF INPUT RIN GdB 0 A(f) fhz 34/37

35 A B 35/37

36 Thermal Derating Curve About the thermal design by the IC Characteristics of an IC 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. Reference data W SSOP-B28 ja = 117.6/W Fig.34 Temperature Derating Curve Note) Values are actual measurements and are not guaranteed. Power dissipation values vary according to the board on which the IC is mounted. 36/37

37 Ordering part number B D F V - E 2 Part No. Part No SSOP-B ± ± ± ± 0.2 (MAX include BURR) ± Min ± 0.1 (Unit : mm) Package FV : SSOP-B28 <Tape and Reel information> Tape Quantity Direction of feed Embossed carrier tape 2000pcs Packaging and forming specification E2: Embossed tape and reel E2 The direction is the 1pin of product is at the upper left when you hold ( reel on the left hand and you pull out the tape on the right hand ) Reel Direction of feed 1pin Order quantity needs to be multiple of the minimum quantity. 37/37

38 Notice Notes 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 of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System R1010A

Microsoft Word - LR1122B-B.doc

Microsoft Word - LR1122B-B.doc UNISONIC TECHNOLOGIES CO., LTD LOW NOISE ma LDO REGULATOR DESCRIPTION The UTC is a typical LDO (linear regulator) with the features of High output voltage accuracy, low supply current, low ON-resistance,