BD37067FV-ME2 ROHM

Datasheet Analog Sound Processors series Sound Processor for car audio nd built-in 2 order post filter BD37067FV-M General Description Key Specifications It is built-in input selector of 6 stereo source and output Total Harmonic Distortion 0.003%(Typ) nd to ADC after adjusting signal level. And built-in 2 order Maximum Input Voltage 2.2V (Typ) RMS post filter to reduce out of band noise and 6ch Volume Common Mode Rejection Ratio 55dB(Min) circuit. Moreover, it is simple to design set by built-in Maximum Output Voltage 2.1V (Typ) RMS TDMA noise reduction systems. Output Noise Voltage 8V (Typ) RMS Residual Output Noise Voltage 2.5V (Typ) RMS Features Ripple Rejection: -70dB (Typ) AEC-Q100 (Grade3) Qualified Operating Temperature Range: -40 C to +85C Built-in differential input selector that can select single-ended / differential input Reduce the pop noise when switching gain due to Package W(Typ) x D(Typ) x H(Max) built-in advanced switch circuit nd SSOP-B40 13.60mm x 7.80mm x 2.00mm Less out-of-band noise of DAC by built-in 2 order post filter. Built-in buffered ground isolation amplifier to realize high CMRR characteristics Built-in TDMA noise reduction circuit reduces the additional components for external filter. Package is SSOP-B40. Putting same direction input-terminals and output-terminals make PCB layout easier and PCB area smaller. 2 Available to control by 3.3V / 5V for I C-bus controller. Applications It is the optimal for the car audio. Besides, it is possible to use for the audio equipment of mini SSOP-B40 Compo, micro Compo. Typical Application Circuit VCC INS INC IG1 IG2 OUTC OUTS OUTR1 OUTR2 OUTF1 OUTF2 INF2 INF1 INR2 INR1 10F 10F GND SDA SCL 10F 10F 10F 10F 10F 10F 2.2F 2.2F 2.2F 2.2F 2.2F 2.2F 10F 10F 10F VCC1 VREF VCC2 40 39 38 37 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 36 100k 100k 100k 100k 100k VREF 100k 2 I C-bus LOGIC Front Mixing Sub Selector Fader : +23dB to -79dB -/1dBstep Input Gain : +23dB to -15dB/1dBstep Sub Main Gain Adjust Fader Fader Fader Fader Fader Fader Gain Adjust Front Mixing : on/off ATT ATT ATT ATT ATT ATT Advanced Switch 2nd order LPF Fader Fader Fader Fader Fader Fader Boost Boost Boost Boost Boost Boost 2nd order LPF: fc=70kHz Rear Main/Sub Gain Adjust 0dB/6dB Selector Anti-TDMA noise circuit Front Selector Input Gain Input selector (2 single - end and 4 stereo ISO) GND GND GND GND GND GND Differentia l Differentia l ISO amp ISO amp ISO amp ISO amp ISO amp ISO amp amp amp 100k 250k 250k 250k 250k 250k 250k 250k 250k 250k 250k 250k 250k 250k 100k 100k 250k 250k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TEST1 TEST2 2.2F 2.2F 2.2F 2.2F 2.2F 10F 2.2F 2.2F 10F 2.2F 2.2F 10F 2.2F 2.2F 10F 10F 2.2F 2.2F A1 A2 B1 B2 CP1 CN CP2 DP1 DN DP2 EP1 EN EP2 FP1 FN1 FN2 FP2 MIN Figure 1. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays. www.rohm.com TSZ02201-0C2C0E100140-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/34 TSZ2211114001 14.NOV.2016 Rev.002 BD37067FV-M Contents General Description ................................................................................................................................................... 1 Features ..................................................................................................................................................................... 1 Applications ................................................................................................................................................................ 1 Key Specifications ...................................................................................................................................................... 1 Typical Application Circuit .......................................................................................................................................... 1 Contents ..................................................................................................................................................................... 2 Pin Configuration ....................................................................................................................................................... 3 Pin Descriptions ......................................................................................................................................................... 3 Block Diagram............................................................................................................................................................ 4 Absolute Maximum Ratings (Ta=25C) ...................................................................................................................... 4 Operating Range ....................................................................................................................................................... 4 Electrical Characteristic ............................................................................................................................................. 5 Typical Performance Curve(s) ................................................................................................................................... 7 1. Electrical specifications and timing for bus lines and I/O stages.................................................................................... 9 2 2. I C-bus Format ............................................................................................................................................................ 10 2 3. I C-bus Interface Protocol............................................................................................................................................ 10 4. Slave Address.............................................................................................................................................................. 10 5. Select Address & Data ................................................................................................................................................. 11 6. About power on reset .................................................................................................................................................. 17 7. About start-up and power off sequence on IC ............................................................................................................. 17 About Advanced Switch Circuit ................................................................................................................................ 19 Application Example ................................................................................................................................................ 25 Thermal Derating Curve .......................................................................................................................................... 26 I/O Equivalence Circuit ............................................................................................................................................ 27 Application Information ............................................................................................................................................ 29 1. Absolute maximum rating voltage ................................................................................................................................ 29 2. About a signal input part .............................................................................................................................................. 29 3. About output load characteristics................................................................................................................................. 29 4. About TEST1,2 terminal(19,20pin) .............................................................................................................................. 30 5. About signal input terminals ........................................................................................................................................ 30 6. About changing gain of Input Gain and Fader Volume ................................................................................................ 30 Operational Notes .................................................................................................................................................... 31 1. Reverse Connection of Power Supply ......................................................................................................................... 31 2. Power Supply Lines ..................................................................................................................................................... 31 3. Ground Voltage ............................................................................................................................................................ 31 4. Ground Wiring Pattern ................................................................................................................................................. 31 5. Thermal Consideration ................................................................................................................................................ 31 6. Recommended Operating Conditions .......................................................................................................................... 31 7. Inrush Current.............................................................................................................................................................. 31 8. Operation Under Strong Electromagnetic Field ........................................................................................................... 31 9. Testing on Application Boards ..................................................................................................................................... 31 10. Inter-pin Short and Mounting Errors ............................................................................................................................ 32 11. Regarding the Input Pin of the IC ................................................................................................................................ 32 Ordering Name Selection ........................................................................................................................................ 33 Physical Dimension Tape and Reel Information ...................................................................................................... 33 Marking Diagram...................................................................................................................................................... 33 Revision History ....................................................................................................................................................... 34 www.rohm.com TSZ02201-0C2C0E100140-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/34 TSZ2211115001 14.NOV.2016 Rev.002