BD37068FV-ME2 ROHM

Datasheet Analog Sound Processors series Sound Processor for car audio built-in High-Voltage function and nd 2 order post filter BD37068FV-M (Note1) 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. It is possible to out until 5.2V at maximum RMS Maximum Output Voltage 5.2V (Typ) RMS output. (High Voltage function) Moreover, it is simple to Output Noise Voltage 23V (Typ) RMS design set by built-in TDMA noise reduction systems. Residual Output Noise Voltage 10.5V (Typ) RMS Ripple Rejection: -70dB (Typ) Features Operating Temperature Range: -40C to +85C AEC-Q100 (Grade3) Qualified Built-in differential input selector that can select (Note1) These specifications are condition of High-Voltage ON. single-ended / differential input Reduce the pop noise when switching gain due to built-in advanced switch circuit Package W(Typ) x D(Typ) x H(Max) nd Less out-of-band noise of DAC by built-in 2 order SSOP-B40 13.60mm x 7.80mm x 2.00mm 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. It is possible to output 5.2V by High-Voltage RMS function 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 VCCL 10F VCCH OUTC OUTS OUTR1 OUTR2 OUTF1 OUTF2 INF2 INF1 INR2 INR1 INS INC IG1 IG2 GND SDA SCL 10F 10F 10F 10F 10F 10F 10F 2.2F 2.2F 2.2F 2.2F 2.2F 2.2F 10F 10F 10F VREF 28 40 39 38 37 36 35 34 33 32 31 30 29 27 26 25 24 23 22 21 Level Level Level Level Level Level Shift Shift Shift Shift Shift Shift 100k 100k 100k 100k 100k 100k VREF 2 I C-bus LOGIC Front mixing Sub Selector Fader : +23dB to -79dB -/1dBstep Input Gain : +23dB to -15dB/1dBstep Sub Fader Fader Fader Fader Fader Main Gain adjust Gain adjust Fader Front Mixing : on/off ATT ATT ATT ATT ATT ATT Advanced Switch 2nd order LPF 2nd order LPF: fc=70kHz Fader Fader Fader Fader Fader Fader Boost Boost Boost Boost Boost Boost Main/Sub Gain Adjust 0dB/6dB Rear Selector Anti-TDMA noise circuit Front High-Voltage Output Selector Input Gain Input selector (1 single - end and 5 stereo ISO) GND GND GND GND GND GND GND Differentia l Differentia l GND ISO amp ISO amp ISO amp ISO amp ISO amp ISO amp ISO amp ISO amp amp amp 100k 100k 250k 250k 250k 250k 250k 250k 250k 250k 250k 250k 250k 250k 250k 250k 100k 250k 250k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 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 10F A1 A2 BP1 BP2 CP1 CN CP2 DP1 DN DP2 EP1 EN EP2 FP1 FN1 FN2 FP2 MIN BN HIVOLB Figure 1. Typical Application Circuit Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays. www.rohm.com TSZ02201-0C2C0E100130-1-2 2014 ROHM Co., Ltd. All rights reserved. 1/35 TSZ2211114001 14.NOV.2016 Rev.002 BD37068FV-M Contents General Description ........................................................................................................................................................................ 1 Features.......................................................................................................................................................................................... 1 Applications .................................................................................................................................................................................... 1 (Note1) Key Specifications ................................................................................................................................................................... 1 Package W(Typ) x D(Typ) x H(Max) ......................................................................................................................................... 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 2 I C-bus Control Signal Specification ........................................................................................................................................... 9 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 Fader Volume Attenuation of the Detail......................................................................................................................................... 18 About bias voltage of output terminal(27,28,35 to 40pin) vs. VCC ................................................................................................ 19 About Advanced Switch Circuit ..................................................................................................................................................... 20 Application Circuit Diagram ........................................................................................................................................................... 26 Thermal Derating Curve ............................................................................................................................................................. 27 I/O Equivalence Circuit ................................................................................................................................................................. 28 Application Information.............................................................................................................................................................. 30 1. Absolute maximum rating voltage ................................................................................................................................... 30 2. About a signal input part ................................................................................................................................................. 30 3. About output load characteristics.................................................................................................................................... 30 4. About HIVOLB terminal(20pin) when power supply is off ............................................................................................... 31 5. About signal input terminals ........................................................................................................................................... 31 6. About changing gain of Input Gain and Fader Volume ................................................................................................... 31 7. About inter-pin short to VCCH ........................................................................................................................................ 31 Operational Notes ......................................................................................................................................................................... 32 1. Reverse Connection of Power Supply ............................................................................................................................ 32 2. Power Supply Lines ........................................................................................................................................................ 32 3. Ground Voltage ............................................................................................................................................................... 32 4. Ground Wiring Pattern .................................................................................................................................................... 32 5. Thermal Consideration ................................................................................................................................................... 32 6. Recommended Operating Conditions ............................................................................................................................. 32 7. Inrush Current................................................................................................................................................................. 32 8. Operation Under Strong Electromagnetic Field .............................................................................................................. 32 9. Testing on Application Boards ........................................................................................................................................ 32 10. Inter-pin Short and Mounting Errors ............................................................................................................................... 33 11. Regarding the Input Pin of the IC ................................................................................................................................... 33 Ordering Name Selection.............................................................................................................................................................. 34 Physical Dimension Tape and Reel Information ............................................................................................................................ 34 Marking Diagram .......................................................................................................................................................................... 34 Revision History ............................................................................................................................................................................ 35 www.rohm.com TSZ02201-0C2C0E100130-1-2 2014 ROHM Co., Ltd. All rights reserved. 2/35 TSZ2211115001 14.NOV.2016 Rev.002