How are the equalizer coefficients for the MAX98090 and MAX98091 obtained?

In the data sheets for the MAX90890 (starting page 101 for record path and 121 for playback path) and MAX98091 (starting on page 105 for record path and page 128 for the playback path) you can find the parametric equalizer equation that is used to set the coefficients for the GUI (as shown in the picture). Similar coefficient can be found on the biquad window of the GUI. The equation represents the Direct Form I IIR Filter equation. Each band of the EQ implements the transfer equation given in this page. The Biquad filter on the record path only has one EQ band, and the parametric EQ on the playback path can be programmed to be a 3, 5, or 7-Band EQ. Each band of the EQ implements the transfer equation given in this page. The coefficients are normalized such that a 0 = 1 From basic DSP theory you can see that the equation is an IIR filter transfer function of in the Z-domain. The biquad filter, as shown in the equation, is a 2-poles 2-zeroes equation. From this information one can visualize that depending on the location of the poles and zeroes the frequency response changes. Here are a few links to online tools and articles that go more in depth on how this equation can be related to Frequency, Gain and Q. Digital biquad filter - Wikipedia Article Filter design tool - Online And this final article does a good job of breaking down some of the equations for each filter as used on the EVkit GUI. Cookbook formulae for audio EQ biquad filter coefficients Keep in mind in the implementation code you need to normalize all the coefficients to coefficient a0. Then you need to multiply the results by 2^20, and round the results. These final values are what go into the registers for the coefficients as specified in the data sheet for each of these products.

Can the MAX98090 ADC=>DAI=>DAC path be used without any BCLK or LRCLK provided?

In Master mode this is possible, since the BCLK and LRCLK are internally generated from the master clock (MCLK), but the BCLK and LRCLK pins must not be connected to ground (as this will pull the clock signal to ground preventing the Digital Audio Interface from working). It is best to leave them unconnected in this case. In Slave mode this is not possible, since BCLK and LRCLK signals must be provided for the coherent orchestration of digital data in the Digital Audio Interface.

Using 96kHz sampling rate with the MAX98090

Q: How to set up the MAX98090 for 96kHz sampling frequency in slave mode? Is this possible to be done, using the 13MHz crystal of the ev-kit or do we need a higher frequency? A: To use 96kHz you do need to set the “DHF” bit high to change the internal clocking to use the 4xFIR instead of 8x (see the datasheet for more detail, require for sample rates > 50kHz). The ADC oversampling ratio needs to also be set to 64 (“OSR128” bit = 0) and you should also insure you only use the music filters (“MODE” bit = 1). As for a 13MHz crystal, you can find the clock requirements on page 26. They show that for sampling rate of 96kHz (with above settings) the ratio of LRCLK (f S ) to PCLK (which in this case is equal to MCLK) needs to be at least 128. With a 13MHz crystal and 96kHz sample rate the ratio is ~135 – so there are enough clock cycles for this scenario.

I am using single-ended line input to the MAX98090/MAX98091 and seeing +6dB higher gain than expected. What might be happening?

Internally, all analog signal paths are differential. As a result, single-ended inputs have a built in baseline gain of +6dB (from the single-ended to differential conversion) while differential inputs have 0dB of built in gain. This is stated on page 94 of the MAX98090 datasheet (Rev 2 8/14) and page 96 of the MAX98091 datasheet (Rev 2 11/14).

Can I change the parametric filter coefficients of MAX98089, and biquad and parametric filter coefficients of MAX98090, MAX98091 in real-time?

The filter coefficient registers are not intended to be updated while the device is operating. The issue is that the register values take effect immediately after they are written and since each coefficient occupies two consecutive registers (for MAX98089) and three consecutive registers (for MAX98090 and MAX98091), the coefficient value will unavoidably be incorrect for some period of time while the registers are being written. Incorrect coefficient values can (and probably will) lead to unstable filters for some number of samples, which can cause lasting effects, since the filters are IIR. The recommended procedure to change filter coefficients is to disable the device, write new coefficients into the registers, then enable the device.

What is the purpose of FIR and IIR filters in some of Maxim's codecs? Why is the FIR called the music filter and IIR the voice filter?

They are provided to attenuate out-of-band signals (i.e. limit aliasing). We call the IIR filter the “voice” filter, as it is intended for lower sample rates (8kHz-16kHz) and has a sharper rolloff and greater stopband attenuation. This is necessary for lower sample rates because there is typically more energy above Nyquist for lower sample rates (if your mic and analog path are flat to 20kHz but your ADC bandwidth is only 8kHz, anything picked-up above 8kHz could be aliased by the ADC). The “music” filter is FIR in order to improve fidelity (FIR filters are linear phase) for higher sample rates that don’t require such strong out-of-band rejection. Specifications for the filters can be found in the EC table on page 20 of the datasheet, specifically in the Record Path Voice IIR Lowpass Filter (MODE=0) section. “Ripple limit cutoff” is the frequency at which the signal amplitude changes by more than the allowable passband ripple (shown as ±0.1dB); -3dB cutoff is self-explanatory; stopband cutoff is the frequency at which the signal is attenuated by the specified stopband attenuation (shown as 74dB). The exact filter parameters or shape of the filter is not shown, as it is not particularly important. While we recommend using the “voice” filters for 16kHz sampling and below, and using “music” filters above this, this is not mandatory. Should the user want a steeper rolloff below Nyquist, they can absolutely use the “voice” filters at any sample rate.

How do I write the EQ registers on the MAX98090?

The EQ registers are grouped into groups of three to form 24-bit values representing EQ bands. The three registers must be written consecutively for the value to take effect, otherwise the written value(s) will be discarded. The three registers can either be written in a single I2C transaction or multiple, as long as no other registers are addressed in between. Example 1: writing EQ Band 1 in one I2C transaction S | Slave Address [W] + ACK | Register Address [0x46] + ACK | B0_1[23-16] + ACK | B0_1[15-8] + ACK | B0_1[7:0] + ACK | P Example 2: writing EQ Band 1 in multiple I2C transactions S | Slave Address [W] + ACK | Register Address [0x46] + ACK | B0_1[23-16] + ACK | P S | Slave Address [W] + ACK | Register Address [0x47] + ACK | B0_1[15-8] + ACK | P S | Slave Address [W] + ACK | Register Address [0x48] + ACK | B0_1[7-0] + ACK | P You can check that the EQ band was successfully set by listening for the audible change or by reading the register back. Note that the EQ registers can only be read when the part is in shutdown mode.

Is there micro-controller source code or drivers for the MAX98090?

The most up to date Linux drivers for the MAX98090 can be found in the Linux kernel under the \sound\soc\codecs pathway. Here is a link to version 4.17-rc2; scrolling down the list you will find the MAX98090 source code and header file which provide a useful basis for creating your own library and drivers. Instructions on finding the most up-to-date version can be found below. 1. Go to www.kernel.org . 2. Click [browse] on the mainline code. 3. Go to the "Tree" tab and click "sound". 4. Click "soc" and then "codecs" on the next two pages. 5. This will bring you to your final destination with a list of all available kernel code written for different codecs, including the MAX98090.

How do I perform a hardware reset of the MAX98090?

While there is no hardware reset pin on the MAX98090, cycling DVDD is sufficient to reset the MAX98090. Holding the DVDD supply below 0.7V, ideally lower, for >100µs should guarantee POR.

Can the "Record Path Sidetone" feature in the MAX98090 be used to subtract out another signal in an effort to perform noise cancellation?

The Record Path Sidetone feature can only be used to add signals to the playback path. There is no internal mechanism in the MAX98090 to automatically invert or subtract signals. All inversion must be done externally either before being fed to the analog inputs or digitally through the Digital Audio Interface.

What is the minimum Headphone Load Impedance of the MAX98090?

The MAX98090 headphone outputs can drive an arbitrarily-low impedance, but the output is current limited to around 90mA peak. This is actually a result of the limited output current of the charge pump supplying the headphone amp. On a simple bench test we are able to drive a 4Ω load and can get 16mW at 1% THD+N. For a 16Ω load happens to be around the peak achievable output power at around 40mW; With higher impedance loads the output power is limited by output voltage swing and with lower impedance loads the output power is limited by charge pump current.

Can I turn off the MAX98090 SPKLVDD, SPKRVDD or SPKVDD when I am not using the microphone or the speaker?

The SPKVDD, SPKLVDD and SPKRVDD pins need to be supplied at all times to make sure the device operates properly. Many of the control registers will reset to POR settings when the supply is reapplied.

Can the MAX98090 GUI program the B version of the IC?

Yes, the MAX98090 GUI is able to identify the version of the IC present and communicate with it accordingly. So the GUI can program both the A and B versions of the IC, which correspond to different I2C slave addresses. On the following screenshot you can see at the bottom of the window the GUI identifies the MAX98090B version and the slave address (0x22).

Can MCLK on the MAX98090 be disconnected and reconnected without causing issues with the audio data when operating the codec in SLAVE mode?

The codec still functions after losing MCLK during central microcontroller programming. The audio will initiate again after MCLK is returned, however, this is not the recommended procedure. You will experience a disconnect/reconnect "popping" sound. The codec has a SHDN control bit in register 0x45 that places the codec in standby. As long as power supplies remain constant, the codec will not need to be reprogrammed. The codec should be placed in standby prior to programming of the microcontroller to ensure proper functionality after coming back online.

Is dual-microphone digital noise cancellation supported by the MAX98090 FlexSound DSP?

The MAX98090 provides the mic inputs for the microprocessor to perform echo and noise cancellation. The Flexsound DSP on the MAX98090 CODEC does not have this functionality. The discontinued MAX98095/6 had a programmable DSP which was able to run user defined algorithms for echo and noise cancellation, however the MAX98095/6 are no longer available.

Is there a way to use the 16MHz clock and set the MCLK on the MAX98090?

Please see the section "Manual Ratio Mode" on page 105 in the datasheet for configuring the system clock for non-standard values.

What is the difference between the MAX98090 and the MAX98091

The MAX98091 is very similar to the MAX98090 device but it can support 4 digital mics whereas the MAX98090 can only support two. For this reason, the MAX98091 has a bigger package. Customers typically use 4 digital mics for applications that might require noise cancellation.

Can I connect I2S signals for the MAX98090 to another I2S source (not the one on the EVKit)?

If you want to disconnect the CODEC from the I2S bus on the EV kit, you can connect it to a different I2S device through header jumper JU15.

Is it necessary to connect the MAX98090's exposed pad to ground?

On the MAX98089, MAX98090, and MAX98091, the exposed pad has no connection to the silicon so it is not required to be connected to ground

Is there a Linux driver available for the MAX98090?

The only drivers available are for the Linux distribution. Note that this driver has been “upstreamed” to the kernel.org community – so it is part of the Linux kernel as of 2.6.39. Versions of the driver will keep sync with the kernel. Linux kernel releases are the best place to obtain versions of the driver newer than 2.6.39.

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+MAX14721ATP+: FAQ
+MAX14723ATP+: FAQ
MAX1472: FAQ
+MAX1472AKA+T: FAQ
+MAX14738EWT+T: FAQ
+MAX1479ATE+: FAQ
MAX14870: FAQ
+MAX14870ETC+: FAQ
+MAX14871EVKIT#: FAQ
MAX14874: FAQ
+MAX14874ETC+: FAQ
+MAX15068ATP+: FAQ
+MAX15090BEWI+: FAQ
+MAX15096AEWE+T: FAQ
MAX15096AGWE+: FAQ
+MAX15096AGWE+T: FAQ
+MAX15162AATE+: FAQ
+MAX15162AATG+: FAQ
+MAX15500: FAQ
+MAX16025TE+: FAQ
+MAX16028TP+: FAQ
+MAX16029: FAQ
MAX16046: FAQ
+MAX16046ACB+: FAQ
+MAX16046EVKIT+: FAQ
+MAX16050ETI+: FAQ
+MAX16065: FAQ
+MAX16084_XS22B+_A1: FAQ
+MAX16122AWT+: FAQ
+MAX16126TCA/V+: FAQ
+MAX16126_TCA/V+_A1: FAQ
+MAX16127TC/V+: FAQ
MAX16141/V+: FAQ
+MAX16141/V+T: FAQ
MAX16141AAAF/VY+: FAQ
+MAX16141AAAF/VY+T: FAQ
+MAX16141ATD+: FAQ
+MAX16141EVKIT#: FAQ
+MAX16141_AAF/V+_A1: FAQ
+MAX16545BGPF+T: FAQ
+MAX16550AGPN+: FAQ
+MAX16550GPN+T: FAQ
MAX16602GGN+: FAQ
+MAX16602GGN+T: FAQ
+MAX16946: FAQ
+MAX17523ATE+: FAQ
+MAX17525ATP+: FAQ
+MAX17526AATP+: FAQ
+MAX17561AUD+: FAQ
+MAX17563AUD+: FAQ
+MAX17600ASA+: FAQ
+MAX17601ASA+: FAQ
+MAX17606: FAQ
MAX17608: FAQ
+MAX17608ATC+: FAQ
+MAX17609: FAQ
+MAX17612AATB+: FAQ
+MAX17613AATP+: FAQ
+MAX17613A_TP+_A1: FAQ
+MAX17613BATP+: FAQ
+MAX17616A: FAQ
+MAX20323AENC+: FAQ
+MAX20323CENC+T: FAQ
+MAX20323DENC+T: FAQ
+MAX20328AEWA+: FAQ
+MAX20330AEWA+: FAQ
+MAX20331AEWL+: FAQ
+MAX21000+TWCHS: FAQ
+MAX21001/V+: FAQ
+MAX2150ETI+: FAQ
+MAX22200ETJ+: FAQ
+MAX22256: FAQ
+MAX2242: FAQ
+MAX235CPG+G36: FAQ
+MAX235MDG/HR: FAQ
+MAX253ESA+: FAQ
MAX256: FAQ
+MAX256ASA+: FAQ
+MAX2654EXT+: FAQ
+MAX274A: FAQ
+MAX274EVKIT-DIP+: FAQ
MAX28200EWC+T: FAQ
+MAX28200EWC+TC02: FAQ
MAX2828: FAQ
MAX2828ETN+: FAQ
+MAX2828ETN+T: FAQ
+MAX2829ETN+: FAQ
MAX2830: FAQ
MAX2830ETM+: FAQ
+MAX2830ETM+T: FAQ
MAX2831: FAQ
+MAX2831EVKIT: FAQ
+MAX2837ETM+: FAQ
+MAX2837EVKIT+: FAQ
+MAX2850: FAQ
+MAX2851ITK+: FAQ
+MAX2900ETI+: FAQ
+MAX2990ECB+: FAQ
+MAX2992: FAQ
+MAX3111ECWI: FAQ
+MAX31740ATA+: FAQ
MAX31760AEE+: FAQ
+MAX31760AEE+T: FAQ
+MAX31785: FAQ
+MAX31785AETL+T: FAQ
MAX31790: FAQ
+MAX31790ATI+T: FAQ
+MAX31856MUD+: FAQ
+MAX32510: FAQ
+MAX32520/W+JU: FAQ
+MAX32520ATJJ/V+: FAQ
+MAX32550: FAQ
+MAX32552-LCJ+: FAQ
MAX32552: FAQ
+MAX32555/B+: FAQ
MAX32555: FAQ
+MAX32558: FAQ
+MAX32560: FAQ
+MAX32590-LNS+: FAQ
+MAX32620-EVKIT#: FAQ
+MAX32620-EVKIT: FAQ
+MAX32620FTHR#: FAQ
MAX32620FTHR: FAQ
+MAX32620ICQ+: FAQ
+MAX32620IWG+T: FAQ
+MAX32621-EVKIT#: FAQ
+MAX32621IWG+T: FAQ
+MAX32625-EVKIT#: FAQ
+MAX32625-EVKIT: FAQ
MAX32625: FAQ
+MAX32625ITK+: FAQ
+MAX32625MBED#: FAQ
+MAX32625MBED: FAQ
+MAX32625NEXPAQ: FAQ
+MAX32625PICO#: FAQ
+MAX32626-EVKIT#: FAQ
+MAX32626-EVKIT: FAQ
+MAX32626: FAQ
+MAX32630-EVKIT#: FAQ
+MAX32630FTHR#: FAQ
MAX32630FTHR: FAQ
+MAX32630ICQ+: FAQ
MAX32630IWG+: FAQ
+MAX32630IWG+T: FAQ
+MAX32631-EVKIT#: FAQ
MAX32631: FAQ
+MAX32631ICQ+: FAQ
+MAX32632: FAQ
+MAX32650-EVKIT#: FAQ
+MAX32650EVKIT: FAQ
+MAX32650GCE+: FAQ
+MAX32650GWQ+T: FAQ
MAX32651: FAQ
+MAX32651GCE+: FAQ
+MAX32652: FAQ
+MAX32655GWY+: FAQ
+MAX32660-EVKIT#: FAQ
+MAX32660-EVSYS#: FAQ
MAX32660: FAQ
+MAX32660EVKIT: FAQ
+MAX32660GTG+T: FAQ
+MAX32660GTGBL+: FAQ
+MAX32660GTGLA+T: FAQ
+MAX32660GWE+: FAQ
+MAX32665EVKIT#: FAQ
+MAX32665GXMBT+T: FAQ
+MAX32666FTHR#: FAQ
+MAX32666GWP+: FAQ
MAX32666GWPBT+: FAQ
+MAX32666GWPBT+T: FAQ
+MAX32668GWPBL+: FAQ
+MAX32670GTL+: FAQ
+MAX3421: FAQ
+MAX34440ETLA1+: FAQ
+MAX34446ETL+T: FAQ
+MAX34451ETNA1+: FAQ
+MAX34451ETNA2+: FAQ
+MAX34451ETNA3+: FAQ
+MAX34461AA00+: FAQ
+MAX34463EXQA3+: FAQ
+MAX3600: FAQ
+MAX3601GTL+: FAQ
+MAX3634: FAQ
+MAX3711: FAQ
+MAX3735AE/D: FAQ
+MAX3735AETG+: FAQ
+MAX3736ETE+: FAQ
+MAX3738: FAQ
+MAX3740AETG+: FAQ
MAX3740AETG: FAQ
+MAX3747AEUB+: FAQ
+MAX3748HETE+: FAQ
+MAX3761: FAQ
MAX3869EHJ+: FAQ
+MAX3869EHJ+T: FAQ
+MAX40056EVKIT#: FAQ
+MAX40200ANS+: FAQ
MAX40200AUK+: FAQ
+MAX40200AUK+T: FAQ
MAX40203ANS+: FAQ
+MAX40203ANS+T: FAQ
+MAX40213: FAQ
+MAX4137: FAQ
+MAX41460EVKIT: FAQ
+MAX41460GUB+: FAQ
+MAX41463GUB+: FAQ
+MAX4201EUK+: FAQ
+MAX4222EEE+: FAQ
+MAX4311EEE+: FAQ
+MAX4370: FAQ
+MAX4383EEE+: FAQ
+MAX4427MJA/883B: FAQ
+MAX4428ESA+: FAQ
+MAX44299: FAQ
+MAX4444ESE/GG8: FAQ
+MAX4550EVKIT: FAQ
+MAX4820ETP+: FAQ
+MAX4821: FAQ
+MAX4896ATP+: FAQ
+MAX4915AELT+: FAQ
+MAX5048CAUT+: FAQ
+MAX5859EXW-D: FAQ
+MAX5902AAEUT+: FAQ
+MAX5903AAETT+: FAQ
+MAX5921FESA+: FAQ
+MAX5933AESA+: FAQ
+MAX5943AEEE+: FAQ
+MAX5947BESA: FAQ
+MAX5954AETX+: FAQ
+MAX5954LETX+: FAQ
+MAX5965A: FAQ
+MAX5969AETB+: FAQ
+MAX5969BETB+: FAQ
+MAX5969BEVKIT+: FAQ
+MAX5971AETI+: FAQ
+MAX5971BETI+: FAQ
+MAX5974AATE+T: FAQ
+MAX5974CETE+: FAQ
MAX5974D: FAQ
+MAX5974DATE+: FAQ
+MAX5974EETE+: FAQ
+MAX5977AETP+: FAQ
MAX5980: FAQ
+MAX5980AGTJ+: FAQ
+MAX5988A: FAQ
+MAX5991AETP+: FAQ
+MAX5995AATE+: FAQ
+MAX5995AETE+T: FAQ
+MAX5995BATE+: FAQ
+MAX5995CETE+: FAQ
+MAX6495: FAQ
+MAX6496ATA/V+: FAQ
+MAX6615AEE+: FAQ
+MAX6639FAEE: FAQ
+MAX6641: FAQ
+MAX6643LBBAEE+: FAQ
MAX6650: FAQ
+MAX6650EUB+: FAQ
+MAX6653AEE+: FAQ
+MAX6682MUA+T: FAQ
+MAX6684ESA+: FAQ
+MAX6816: FAQ
+MAX6839XSD2+: FAQ
+MAX6895AALT+: FAQ
+MAX6895AAZT/V+T: FAQ
+MAX7030HATJ+: FAQ
+MAX7032: FAQ
MAX7037: FAQ
+MAX7037EGL+T: FAQ
+MAX7037EVKIT#: FAQ
+MAX7461EUK+: FAQ
+MAX7474EAE+_T1: FAQ
+MAX77729XEWN+: FAQ
+MAX77823EWZ+: FAQ
+MAX77859AEWO+: FAQ
+MAX77932BEWO+: FAQ
+MAX77932EWO+T: FAQ
+MAX78000EXG+: FAQ
+MAX78000FTHR: FAQ
+MAX78700: FAQ
+MAX8535: FAQ
+MAX8790AETP+: FAQ
+MAX8804: FAQ
+MAX881: FAQ
+MAX8902: FAQ
+MAX8903: FAQ
+MAX9272: FAQ
+MAX9295AGTJ/V+: FAQ
+MAX9295EGTN/V+T: FAQ
+MAX9296AGTM/V+: FAQ
+MAX96716A: FAQ
+MAX96751: FAQ
+MAX98089ETN+: FAQ
+MAX98089EVKIT#WLP: FAQ
MAX98090: FAQ
+MAX98090AETL+T: FAQ
-MAX98090AEWJ+: FAQ
+MAX98090EVKIT#WLP: FAQ
+MAX98091: FAQ
+MAX98373: FAQ
+MAX9860ETG+: FAQ
MAX9867: FAQ
+MAX9867ETJ+: FAQ
+MAX9867EVKIT+: FAQ
MAX9880A: FAQ
+MAX9880AETM+: FAQ
+MAX9880AEVKIT#: FAQ
+MAX9947ETE+: FAQ
+MAXADCLITE+: FAQ
+MAXCOAX2STP-HSD#: FAQ
+MAXPOWERTOOL002#: FAQ
+MAXQ1741: FAQ
+MAXQ1743: FAQ
+MAXQ1744-DNS+: FAQ
+MAXQ617: FAQ
MAXQ7667: FAQ
+MAXQ7667AACM/V+: FAQ
+MAXQUSBJTAGOW-KIT#: FAQ
+MAXREFDES100#: FAQ
+MAXREFDES101 SOFTWARE FOR WINDOWS 10: FAQ
+MAXREFDES101#: FAQ
+MAXREFDES103#: FAQ
+MAXREFDES104#: FAQ
+MAXREFDES105#: FAQ
+MAXREFDES117#: FAQ
+MAXREFDES132#: FAQ
+MAXREFDES145#: FAQ
+MAXREFDES150#: FAQ
+MAXREFDES16#: FAQ
+MAXREFDES165#: FAQ
+MAXREFDES212#: FAQ
+MAXREFDES220#: FAQ
+MAXREFDES31#: FAQ
+MAXREFDES37#: FAQ
+MAXREFDES4#: FAQ
+MAXREFDES42#: FAQ
+MAXREFDES70#: FAQ
+MAXREFDES73#: FAQ
+MAXREFDES74#: FAQ
MAXREFDES74: FAQ
+MAXREFDES77#: FAQ
+MAXREFDES79#: FAQ
+MINIQUSB: FAQ
+NO PART NUMBER: FAQ
+NONE: FAQ
+OP07: FAQ
+OP27: FAQ
+OP37: FAQ
+OP90: FAQ
+PCB, MAX2850EVKIT+: FAQ
+PD-1370: FAQ
+PD20-1-1210: FAQ
+PD28-3-1021-TMCL: FAQ
+PD42-1-1140-TMCL: FAQ
+PD42-1-1243-IOLINK: FAQ
+PD42-1-1370-TMCL: FAQ
+PD42-4-1370-TMCL: FAQ
+PD57-1-1076: FAQ
+PD57-1-1160-TMCL: FAQ
+PD57-1-1260-TMCL: FAQ
+PD57-1-1378-CANOPEN: FAQ
+PD57-2-1160-TMCL: FAQ
+PD60-3-1260-TMCL: FAQ
+PH-MODULES-TRINAMIC: FAQ
+QBL4208-100-04-025: FAQ
+QBL4208-41-04-006: FAQ
+QBL4208-61-04-013: FAQ
+QBL5704-116-04-042: FAQ
+QSH2818-32-07-006: FAQ
+QSH4218-41-10-035: FAQ
+REF02A: FAQ
+RS485: FAQ
+SC-USB-SPI: FAQ
+SSM2250: FAQ
+SSM2302: FAQ
+SSM2602: FAQ
+SSM2603: FAQ
+STM1E-SFP02: FAQ
+STM1E-SFP22: FAQ
+SW02: FAQ
+TEST: FAQ
+TMC USB-2-485: FAQ
+TMC2041-EVAL: FAQ
+TMC2041-LA: FAQ
+TMC2130-LA: FAQ
+TMC2208SILENTSTEPSTICK: FAQ
+TMC2209 SILENTSTEPSTICK: FAQ
+TMC2209-LA-T: FAQ
+TMC2226-BOB: FAQ
+TMC2240: FAQ
+TMC2590: FAQ
+TMC262C-LA: FAQ
+TMC2660C-PA-T: FAQ
TMC2660C-PA: FAQ
+TMC429-I: FAQ
+TMC4361A-LA: FAQ
+TMC457: FAQ
+TMC4671: FAQ
+TMC5041-LA: FAQ
+TMC5062-LA: FAQ
+TMC5072-LA: FAQ
+TMC5130-EVAL-KIT: FAQ
+TMC5130A-TA: FAQ
+TMC5160 SILENTSTEPSTICK: FAQ
+TMC5160-BOB: FAQ
+TMC5160-EVAL: FAQ
+TMC5160A-TA: FAQ
+TMC5272-EVAL-KIT: FAQ
+TMCM-1043: FAQ
+TMCM-1070: FAQ
+TMCM-110-42-485: FAQ
+TMCM-1110 STEPROCKER: FAQ
+TMCM-1140-TMCL: FAQ
+TMCM-1160-TMCL: FAQ
+TMCM-1180-TMCL: FAQ
+TMCM-1260-CANOPEN: FAQ
+TMCM-1260-TMCL: FAQ
+TMCM-1270-CANOPEN: FAQ
+TMCM-1290: FAQ
+TMCM-142-IF-TMCL: FAQ
+TMCM-1630-2C: FAQ
+TMCM-1630-4U: FAQ
+TMCM-1633-CANOPEN: FAQ
+TMCM-1640: FAQ
+TMCM-310/SG: FAQ
+TMCM-3110-TMCL: FAQ
+TMCM-3212-TMCL: FAQ
+TMCM-3230-TMCL: FAQ
+TMCM-3314: FAQ
+TMCM-3351-TMCL: FAQ
+TMCM-6110: FAQ
+TMCM-6212-TMCL: FAQ
+TMCM-6214-TMCL: FAQ
+TMCS: FAQ
+TRINAMIC MISC SERVICE: FAQ
+TRINAMIC PACKAGING SURCHARGE: FAQ
+USB-2-RTMI: FAQ
+USB2GPIO#: FAQ
+USB2PMB2#: FAQ
+VDSP-BLKFN-PC-FULL: FAQ
+VDSP-TS-PC-FULL: FAQ
+VISUALAUDIO: FAQ
+VT202: FAQ
+VT273SAFQ: FAQ
What does the "C01" denote in DS75S-C01+?
What should I do with unused I/O pins on the DS2482S?
+ZLP32300: FAQ
+_DS9093A: FAQ