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www.gennum.com GA3222 advanta? adro?-en abled dsp system GA3222 preliminary data sheet 34477 - 0 february 2006 1 of 21 features ? adro? amplification technology ? adaptive directional microphone system ? adaptive feedback canceller ? noise management ? available optional turn-key software ? high fidelity audio codec ? 20-bit audio precision ? 95db input dynamic range with hrx? headroom extension ? drives zero-bias 2- terminal receivers ? 4 analog inputs ? 4 fully configurable memories with audible memory change indicator ? 2 memory select pads ? volume control with configurable adjustment range ? 8khz bandwidth ? optimized programming speed ? thinstax? packaging thinstax packaging ? hybrid typical dimensions: 0.215 x 0.124 x 0.065in 5.46 x 3.15 x 1.65mm description advanta? is gennum?s premium high-end product with adro technology from dynamic hearing implemented on the voyageur? platfo rm. the flexibility and sophistication of adro combines with the precision and advanced capabilities of voyageur to deliver unprecedented sound quality, comfor t and audibility to hearing aid wearers. adro is fitted via direct in -situ measures to ensure a fast, customised fitting. adro uses statistical analysis and gain customized in 32 independent channels, so that the sound level is always optimized to be within the comfortable dynamic range of the listener. advanta's adaptive directional microphone technology provides added benefit in background noise. advanta automatically changes from directional to omni-directional in differen t environments as needed. advanta has an adjustable threshold criterion and becomes omni-directional in wind noise, and in quiet. in the directional mode, the signals from two omni-directional microphones are combined and the null is automatically moved to optimise noise rejection. the adaptive directional microphone features a flat frequency response, so that no additional frequency compensation is required. it is easily configured for different microphone placements, and can be calibrated to match multiple microphones. the advanced feedback canceller provides increased maximum stable gain. additionally, it features rapid adjustment for dynami c feedback situations. advanta is available with the configure? fitting software, so named as it allows the customer to quickly configure the hearing aid. configure features a stand-alone database supporting multiple sessions, automatic interface detection and an intuitive fitting procedure which achieves fast and accurate fittings. a software interface library for customers wishing to integrate support for adva nta into existing fitting software is also available. other configurable options on advanta include: fixed directional microphone, internal noise reduction with user programmable settings, direct audio input, telecoil input, calibration and test modes supporting standard iec/ansi procedures, adjustable input selection, and four listening programs.
GA3222 preliminary data sheet 34477 - 0 february 2006 2 of 21 block diagram hybrid block diagram fmic sda ms rmic tin ms2 vc mgnd out+ out- vbp pgnd vb gnd vreg dai 16 3 2 14 15 1 54 12 13 6 7 8 9 10 11 programming interface eeprom m u x d/a hbridge peak clipper control a/d a/d a/d clock generator por circuitry adro amplification technology cross fader microphone compensation agco feedback canceller memory select frequency band analysis frequency band synthesis tone generator 32 channels voltage regulator volume control internal noise reduction in-situ measures/ noise generator configurable range adaptive or fixed directional microphone mixed mode
GA3222 preliminary data sheet 34477 - 0 february 2006 3 of 21 contents features ....................................................................................................................... .1 thinstax packaging .....................................................................................................1 description .................................................................................................................... 1 1. pad connection.........................................................................................................4 2. absolute maximum ratings .. ....................................................................................4 3. warnings ...................................................................................................................4 4. electrical characteristics ...........................................................................................5 5. typical applications ..................................................................................................7 6. advanta overview .....................................................................................................9 7. functional block description ..................... ................................................................9 7.1 adro processing ...........................................................................................9 7.2 adaptive directional microphone ......... .............. ............ ........... ........... .........10 7.2.1 threshold criterion ..............................................................................10 7.3 noise reduction ............................................................................................10 7.3.1 expansion thres hold ................ .............. .............. ........... ........... .........10 7.3.2 expansion ratio............ .............. .............. ............ ........... ........... .........10 7.3.3 time constants....................................................................................11 7.4 adaptive feedback canceller .......................................................................11 7.5 a/d and d/a converters ...............................................................................12 7.6 hrx head room expander ................. .............. ............ ........... ........... .........12 7.7 volume control .............................................................................................12 7.8 memory select switches .................... ...........................................................12 7.8.1 momentary switch on ms....................................................................13 7.8.2 momentary switch on ms, static switch on ms2 (jump to last memory) .......................... .........................................................13 7.8.3 static switch on ms and ms2 .............................................................13 7.8.4 static switch on ms, static switch on ms2 (jump to last memory) .......................... .........................................................14 7.9 audible memory change indicator ....... .........................................................15 7.10 cross fader ................................................................................................15 7.11 sda communication ...................................................................................15 7.12 power management ........... .............. .............. .............. ........... ........... .........15 7.13 power-on/power-off behavior and low battery indicator ... .............. .........16 7.14 telecoil path ...............................................................................................17 8. software support ....................................................................................................18 8.1 adrocom ...................................................................................................18 8.2 advanta calconfig ........................................................................................18 8.3 configure? ...................................................................................................18 9. package dimensions ..............................................................................................19 9.1 pad location .................................................................................................20 10. revision history ...................................... ..............................................................21
GA3222 preliminary data sheet 34477 - 0 february 2006 4 of 21 1. pad connection figure 1-1: pad connection 2. absolute maximum ratings 3. warnings vreg tin dai ms ms2 vb vbp out- out+ pgnd gnd sda vc rmic fmic mgnd 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 parameter value operating temperature range 0c to 40c storage temperature range -20c to 70c maximum operating supply voltage 1.5vdc absolute maximum supply voltage 2vdc caution electrostatic sensitive devices do not open packages or handle except at a static-free workstation caution level 3 moisture sensitive devices do not open packages except under controlled conditions
GA3222 preliminary data sheet 34477 - 0 february 2006 5 of 21 4. electrical characteristics table 4-1: electrical characteristics conditions: v bat = 1.25v temperature = 25c parameter symbol conditions min typ max units minimum operating supply voltage v boff ramp down 0.93 0.95 0.97 v supply voltage turn on threshold v bon ramp up 1.06 1.1 1.16 v eeprom burn cycles ? ? 100k ? ? cycles current consuption ? adro-only (single mic) ? 850 ? ua ? all features enabled (dual mic) ? 1.1 ? ma low frequency system bandwidth ? ? ? 125 ? hz high frequency system bandwidth ? 16khz sampling rate ? 8 ? khz total harmonic distortion thd v in = -40dbv ? ? 1 % thd at maximum input thd m v in = -15dbv, hrx - on ? ? 3 % clock frequency f clk ? 1.945 2.048 2.151 mhz regulator regulator voltage v reg ? 0.87 0.90 0.93 v input input referred noise irn bandwidth 100hz - 8khz ? -109 -106 dbv input impedance z in ??16?k anti-aliasing filter rejection ? ? = ? clk - 8khz, v in = -40dbv ? 80 ? db maximum input level ? ? ? -15 ? dbv input dynamic range ? hrx - on bandwidth 100hz - 8khz ? 94 ? db a/d dynamic range ? bandwidth 100hz - 8khz ? 83 ? db output d/a dynamic range ? ? ? 88 ? db output impedance z out ???15
GA3222 preliminary data sheet 34477 - 0 february 2006 6 of 21 volume control volume control resistance r vc three-terminal connection 100 ? 1000 k volume control range a adjustable vc range from 0 to +/-18 db. supports non-symmetrical ranges. -18 ? +18 db sda input logic 0 voltage ? ? 0 ? 0.3 v logic 1 voltage ? ? 1 ? 1.3 v sda output standby pull up current ? ? 1.4 2 2.6 a sync pull up current ? ? 450 500 550 a logic 0 current (pull down) ? ? 225 250 275 a logic 1 current (pull up) ? ? 225 250 275 a synchronization time (synchronization pulse width) t sync baud = 0 237 250 263 s t sync baud = 1 118 125 132 s t sync baud = 2 59 62.5 66 s t sync baud = 3 29.76 31.25 32.81 s t sync baud = 4 14.88 15.63 16.41 s t sync baud = 5 7.44 7.81 8.20 s t sync baud = 6 3.72 3.91 4.10 s t sync baud = 7 1.86 1.95 2.05 s ms and ms2 inputs pull down / up resistance ? ? ? 1 ? m logic 1 voltage ? ? v reg ?v b v rising edge threshold ? ? 0.5 0.69 0.9 v falling edge threshold ? ? 0.25 0.45 0.5 v hysteresis ? ? 0.1 0.24 0.4 v table 4-1: electrical characteristics (continued) conditions: v bat = 1.25v temperature = 25c parameter symbol conditions min typ max units
GA3222 preliminary data sheet 34477 - 0 february 2006 7 of 21 5. typical applications all resistors in ohms, all capacitors in farads unless otherwise stated. figure 5-1: test circuit 16 3 2 14 15 1 54 12 13 6 7 8 9 10 11 programming interface eeprom m u x d/a hbridge peak clipper control a/d a/d a/d clock generator por circuitry adro amplification technology cross fader microphone compensation agco feedback canceller memory select frequency band analysis frequency band synthesis tone generator 32 channels voltage regulator volume control internal noise reduction in-situ measures/ noise generator configurable range adaptive or fixed directional microphone mixed mode 3k9 3k9 1k 1k 200k v b lp filter out
GA3222 preliminary data sheet 34477 - 0 february 2006 8 of 21 figure 5-2: typical ap plication circuit figure 5-3: typical hearing instrument assembly diagram 16 3 2 14 15 1 54 12 13 6 7 8 9 10 11 programming interface eeprom m u x d/a hbridge peak clipper control a/d a/d a/d clock generator por circuitry adro amplification technology cross fader microphone compensation agco feedback canceller memory select frequency band analysis frequency band synthesis tone generator 32 channels voltage regulator volume control internal noise reduction in-situ measures/ noise generator configurable range adaptive or fixed directional microphone mixed mode v b knowles or sonion zero-bias receiver vreg knowles or sonion microphones t-coil vc zero biased receiver rear mic + front mic + +- back view of cs44 socke t ms switch (n.o.)
GA3222 preliminary data sheet 34477 - 0 february 2006 9 of 21 6. advanta overview advanta is a dsp system with adaptive algorithms and the adro sound processing methodology implemented on the voyageur hardware platform. this hardware platform is a combination of a dsp core and a high fidelity audio codec. as well, thinstax packaging prov ides easy integration into a wide range of applications from cic to bte. the codec converts analog audio into di gital samples for the dsp, and outputs processed samples to the receiver. the codec also implements cross fading between audio paths. the dsp core impl ements the adaptive algorithms, adro processing, volume control, and tone gen eration. the adaptive algorithms include an adaptive directional microphone and feedback cancellation. internal noise reduction is also included. the proce ssing is based on adro targets, which eliminates the need for eq filters or wide band gain settings. 7. functional block description 7.1 adro processing adro uses advanced statistical analysi s and fuzzy logic control in 32 narrow frequency channels to achieve a natural sound, with maximum listening comfort and audibility in all environments. instea d of compressing the signal, the most informative part of the dynamic range is selected and presented linearly in every one of the 32 channels. the linear processi ng of adro results in a natural sound that is preferred by first-time and experienced hearing aid users alike. adro is easy to fit and flexible enough to fit any hearing loss taking individual preferences into account. there is no need to consider compression ratios, knee-points, or other complex settings ? intuitive adjustments fine tune adro to overcome any hearing problem. once fitted well in one environment, adro automatically adjusts to any other. clinical trials sh ow substantial benefits in background noise, with loud, average and soft speech in quiet and for a wide variety of environmental sounds.*blamey pj, martin lfa & fiket hj (2004). a digital processing strategy to optimize hearing aid outputs directly. j am acad audiol. (2004 nov?dec; 15(10):716?28)
GA3222 preliminary data sheet 34477 - 0 february 2006 10 of 21 7.2 adaptive directional microphone adaptive directional micropho nes offer flexibility over fi xed directional microphones as noise from any direction can be optima lly rejected. the arch itecture of this particular adaptive directional micr ophone combines the input from two microphones to achieve the desired response. the inherently flat frequency response of the adaptive dire ctional microphone eliminates the need for a separate frequency compensation algorithm. an adjustable threshold criterion also allows the adaptive directional microphone to automatically adapt to an omni-directional response when the environment is relatively quiet. in situations where a directional response is noisy (e.g. wind) an omni-directional response is also automati cally used. in the case of a diffuse sound field, the adaptive directional microphone adapts to a super-cardioid polar pattern, which is optimal for this situation. 7.2.1 threshold criterion the recommended threshold for the ad aptive directional microphone is 65-70dbspl. this threshold ensures that in quiet environments an omni-directional response is adopted, a nd that in a moderately noisy environment the appropriate directional response is used. 7.3 noise reduction the internal noise reduction system is a single-channel expansion scheme operating to reduce the broad-band noise generated internally in the hearing aid ? particularly in the microphone. the intensity of both the noise and signal after the front microphone pre-amp is shaped with an approximately a-weighted filt er designed to more accurately reflect the sensitivity of the human ear. this weig hting means that the inr threshold is at a fairly constant sensation level across frequency, as opposed to a constant intensity. the aggressiveness of the no ise reduction algorithm is adjustable. 7.3.1 expansion threshold test box measures show that the spee ch intelligibility index of soft speech (55dbspl ltass) is not compromised with an expansion threshold of 50 - 55 dbspl. the recommended expansion threshold setting for the fixed directional microphone is 50 - 55 dbspl . 7.3.2 expansion ratio the recommended expansion ratio is 0.7 to minimize audible effect when the hearing aid moves in and out of expans ion. ratios less than 0.6 are not recommended.
GA3222 preliminary data sheet 34477 - 0 february 2006 11 of 21 7.3.3 time constants the preconfigured attack and release times are 200ms and 20ms respectively for two main reasons: 1. to ensure that the noise reduction system is not activated during softer phonemes in speech (slower expansio n attack time) and that the system quickly responds to the onset of speech (faster expansion release time). the typical duration of phonemic gaps bet ween syllables in speech is about 150ms, so the expansion attack time should be longer than this to avoid distorting the speech envelope. 2. slow time constants are in keeping wi th adro processing and are optimized to preserve the sound quality of speech. 7.4 adaptive feedback canceller advanta?s feedback canceller reduces acoustic feedback by forming an estimate of the hearing aid feedback signal and th en subtracting this estimate from the hearing aid input. therefore, the forward path of the hearing aid is not affected. unlike adaptive notch filter approaches, advanta?s feedback canceller does not reduce the hearing aid?s gain. figure 7-1: adaptive feedback canceller block diagram g h' h + - feedback path estimated feedback
GA3222 preliminary data sheet 34477 - 0 february 2006 12 of 21 7.5 a/d and d/a converters the system's two a/d converters are 2nd-order sigma-delta modulators, which operate at a 2.048mhz sample rate. the system's two audio inputs are pre-conditioned with antialias filtering and programmable gain pre-amplifiers. these analog outputs are over sampled an d modulated to produce two, 1-bit pulse density modulated (pdm) data streams. the digital pdm data is then decimated down to pulse-code modulated (pcm) digital words at the system sampling rate of 16khz. the d/a is comprised of a digital, 3rd-order sigma-delta modulator and an h-bridge. the modulator accepts pcm audi o data from the dsp path and converts it into a 32-times over-sampled, 1-bit pd m data stream, which is then supplied to the h-bridge. the h-bridge is a specialized cmos output driver used to convert the 1-bit data stream into a differential outp ut voltage waveform suitable fo r driving low-impedance zero-biased hearing aid receivers. 7.6 hrx head room expander advanta has an enhanced head room expander (hrx) circuit, which increases the input dynamic range of advanta witho ut any audible artifacts. this is accomplished by dynamically adjusting the pre-amplifier?s gain and the post-a/d attenuation depending on the input level. 7.7 volume control an external 3-terminal volume control can be connected to advanta. the volume control range is adjustable from 0db to +/-18db, with support for non-symmetrical configurations (e.g. from -5db to +10db). 7.8 memory select switches there are two, two-pole memory select switches available on advanta, which allows the user significant flexibility in switching between co nfigurations. these switches may be either momentary or static and are configurable to be either pull-up or pull-down. up to four user memories can be configured on advanta.
GA3222 preliminary data sheet 34477 - 0 february 2006 13 of 21 7.8.1 momentary switch on ms this mode uses a single momentary switch on ms (pin 4) to change memories. using this mode causes the part to start in memory a and whenever the button is pressed the next valid memory is loaded. when the user is in the last valid memory, a button press causes memory a to be loaded. examples if 4 valid memories abcdabcd? if 3 valid memories abcabca? if 2 valid memories ababa? if 1 valid memory aaa? 7.8.2 momentary switch on ms, static sw itch on ms2 (jump to last memory) this mode uses a static switch on ms2 (p in 5) and a momentary switch on ms (pin 4) to change memories. if the static switch is open, the part starts in memory a and it behaves like momentary with the exce ption that memory d is not used. if the static switch on ms2 is set to high, t he part will automatically jump to memory d (this happens on start-up or during normal operation). in this setup, the momentary switch's state is ignored, preventing memo ry select beeps from occurring. when ms2 is set to open, the part loads in the last select ed memory. if required, a memory other than d can be used as the jump memory (including one accessible by ms). examples if ms2 = open and there are 4 valid memories: abcabca? if ms2 = high: d? 7.8.3 static switch on ms and ms2 this mode uses two static s witches to change memories. table 7-1 describes which memory is selected depending on the state of the switches. in this mode it is possible to jump from any memory to any other memory simply by changing the state of both switches. if both switches are changed simultaneously then the transition is smooth, otherwise, if one switch is changed and then the other, the part transitions to an inte rmediate memory before reaching the final memory. the part starts in whatever memory t he switches are selected. if a memory is invalid the part defaults to memory a.
GA3222 preliminary data sheet 34477 - 0 february 2006 14 of 21 7.8.4 static switch on ms, static sw itch on ms2 (jump to last memory) this mode uses two static switches to change memories. unlike in the previous example, this mode switches to the memo ry d when the static switch on ms2 is high. this means that this mode uses a maximum of three memories (even if four valid memories are programmed). table 7-2 describes which memory is selected depending on the state of the switches. in this mode it is possible to jump from any memory to any other memory simply by changing the state of both switches. if both switches are changed simultaneously then the transition is smooth, otherwise, if one switch is changed and then the other, the part transitions to an inte rmediate memory before reaching the final memory. when ms2 is set high, the state of the switch on ms is ignored. this prevents memory select beeps from occurring w hen switching ms when ms2 is high. the part starts in whatever memory t he switches are selected. if a memory is invalid, the part defaults to memory a. if required, a memory other than d can be used as the jump memory (including one accessible via ms). table 7-1: memory selected in static switch on ms and ms2 mode ms ms2 memory open open a high open b (if valid, otherwise a) open high c (if valid, otherwise a) high high d (if valid, otherwise a) table 7-2: memory selected in static switch on ms, static switch on ms2 (jump to last memory) mode ms ms2 memory open open a high open b (if valid, otherwise a) open high d high high d
GA3222 preliminary data sheet 34477 - 0 february 2006 15 of 21 7.9 audible memory change indicator the length of memory indicator beeps as well as the beep mode (single beep, multi-beep or beeps disabled) are configurable. in addition, each memory can have a different frequency and beep amplitude. beeps can be non-masking (they do not block the audio path), or masking (the audio path is disabled during beeps). 7.10 cross fader to minimize potential loud transients wh en switching between memories, advanta uses a cross fader block. when the memory is changed, the audio signal is faded out, and after switching to the next memo ry, the audio signal is faded back in. the cross fader is also used during sda programming. 7.11 sda communication advanta is programmed via the sda pin using industry standard programming boxes. during parameter changes the main audio signal path of the hybrid is temporarily muted using the cross fader to avoid the generation of disturbing audio transients. once the changes are complete, the main audio path is reactivated. any changes made during programming are lost at power-off unless they are explicitly burned to eeprom memory. 7.12 power management advanta was designed to accommodate high power applications. ac ripple on the supply can cause instantaneous reduction of the battery's voltage, potentially disrupting the circuit's function. advant a hybrids have a separate power supply and ground connections for the output stage. this allows hearing instrument designers to accommodate external rc filters in order to minimize any ac ripple from the supply line. reducing this ac ripple grea tly improves the stabilit y of the circuit and prevents unwanted reset of the circuit ca used by spikes on the supply line. for more information on properly designing a filter to reduce supply ripple, please refer to information note using the gb321 1 paragon digital in high power applications initial desi gn tips, document #24561.
GA3222 preliminary data sheet 34477 - 0 february 2006 16 of 21 7.13 power-on/power-off behavior and low battery indicator during power-on, the advanta hybrid is held in a reset state until the supply voltage (vb) reaches a turn-on threshold. a small portion of the hybrid's internal control logic turns on and monitors the voltage to determine if the supply is stable. once the supply is stable, the entire hybrid is activated and loads its configuration. finally, the audio output turns on by smoothly transitioning to the expected output level. during normal operation, when a low battery condition (below low battery threshold) is detected, the advanta hy brid sends out a series of beeps (of configurable length and length) to indicate that the battery is low. this will repeat at a regular interval (configurable from 10 seconds to 10 hours) until the device reaches the turn -off threshold. the low battery threshold is configurable from between 1.0v and 1.2v in 10mv increments. if vb drops below the turn-o ff threshold then the advanta hybrid is returned to its reset state and the audio out put is muted. after a reset due to a low battery or a sudden supply transient, the recovery behavior of venture is determined by the selectable reset mode through the calconfig application. there are four selectable reset modes as follows: 1. shallow-reset mode, allo ws the advanta hybrid to immediately restart when the supply voltage rises above the turn-on threshold, after a low battery shutdown or transient shutdown. the device restarts in the memory that was last active when the shut down occurred. in summary, the device functions until the supply voltage drops below the turn-off threshold, and recovers when the device rises above the turn-on threshold again. 2. deep-reset mode, does not allow the advanta hybrid to restart after a low battery shutdown or transient shutdown. once a shut down occurs (i.e. once the supply voltage drops below the turn-off threshold), the device remains off until the supply voltage drops below approximately 0.3v and subsequently rises above the turn-on threshold. in order for the supply to drop below 0.3v, the battery should be disconnected. upon reconnecting the battery (preferably a new battery) the supply voltage rises above the turn-on threshold, and subject to th e supply being stable, the device restarts. 3. mixed mode, is a combination of modes 1 and 2. the device starts up in shallow-reset mode initially, and then changes over to deep reset mode after five minutes.
GA3222 preliminary data sheet 34477 - 0 february 2006 17 of 21 4. transient reboot mode (recommended), is a more advanced combination of modes 1 and 2, plus some additional intelligen ce. the device starts up in shallow-reset mo de initially, so that after a low battery shutdown or transient shutdown, the device immediately restarts when the supply voltage rises above the turn-on threshold. once the device restarts, deep-reset mode is applied and the device operates in the memory that was last active when the shut down occurred. additionally, the maximum output level is reduced through a 2 db reduction of the agco and peak clipper. this operating condition is defined as transient reboot mode. the device operates in transient reboot mode (meaning deep-reset mode and maximum output reduction are applied) while monitoring the supply voltage. if the supply voltage remains above the turn-on threshold for at least 30 seconds, the device is allowed to exit transient reboot mode. the device returns to mode and the maximum output is restored. generally, any low battery shutdown or tr ansient shutdown that occurs while in shallow-reset mode (or while in the shallow-reset mode component of mixed mode or transient reboot mode) results in the advanta hybrid restarting into the memory that was last active when the shut down occurred. the advanta hybrid has this memory restart capability for up to thre e memories. a restart in any memory beyond the first three memori es causes the device to restart in the initial memory, similar to the behavior when a battery is first connected. the tr ansient reboot mode described above also applies to up to three memories. any additional memories use the shallow-reset mode behaviour, and restarts in the initial memory after a shutdown. 7.14 telecoil path the telecoil input is calibra ted during the cal/config process. to compensate for the telecoil/microphone gain mismatch, the telecoil gain is adjusted to match the microphone gain.
GA3222 preliminary data sheet 34477 - 0 february 2006 18 of 21 8. software support 8.1 adrocom the adrocom library provides a simple application programmer's interface for controlling and programming advanta with proprietar y fitting software. the adrocom library is a win32 dynamic lin k library (dll). the adrocom library provides the functionality required to measure audio levels through the hearing aid, and fine-tune the hearing aid fitting.this library also provides a communications interface to the hearing aid to facilitate lower leve l functions such as connection, device verification, reading and writing to both volatile and non-volatile memory, and being able to stop, start and mute the hearing aid during a fitting session. 8.2 advanta calconfig adro algorithm requires calibration of the advanta hearing instrument before using it with any fitting software. the calibration will adjust the gain and the maximum output level of the instrument so the gain and the maximum output frequency response curves are flat, wit hin specified tolerance, across the frequency spectrum. the calibration is done by gennum's advanta calconfig program. for more information on advanta calconfig program refer to "getting started with advanta digital" information note, document 36478. 8.3 configure? the configure fitting software is a a turn -key adro fitting so lution for advanta. configure uses the adrocom library to interface with the hearing aid and provide initial fitting predictions. configure features a stand-alone data base, which stores each client's demographic details, all fitting details and enables access to past fitting sessions. configure guides the clinician through an in tuitive fitting procedure which achieves fast and effective fittings in as few as fo ur steps; balancing comf ort levels, adjusting the volume of the hearing aid, fine-tun ing the hearing aid, and programming. three programs are saved to the hearing aid when using confi gure. the clinician is able to select the microphone configurat ion in each memory, as well the settings of feedback cancellation and internal noi se reduction. fine-tuning adjustments are always made to the first program and are automatically incorporated into the second and third program.
GA3222 preliminary data sheet 34477 - 0 february 2006 19 of 21 9. package dimensions figure 9-1: package dimensions 0.026 (0.660) 0.016 (0.406) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0.215 (5.46) 0.070 max (1.78) 0.124 (3.15) GA3222 xxxxxx dimension units are in inches. dimensions in parentheses are in millimetres, converted from inches and include minor rounding errors. 1.0000 inches = 25.400mm dimension tolerances: 0.005 (0.13) unless otherwise stated. work order number: xxxxxx this hybrid is designed for either point-to-point manual soldering or for reflow according to gennum's reflow process (information note 521-45).
GA3222 preliminary data sheet 34477 - 0 february 2006 20 of 21 9.1 pad location pad no. pad position pad dimensions x y xdim (mil) ydim (mil) 1001838 2 -29 -5.75 20 26.5 3 -59.25 -5.75 20.5 26.5 4 -91.5 -8.5 24 21 5 -124 -5.75 19 26.5 6 -154.25 -1.75 21.5 34.5 7 -183.5 -1.75 17 34.5 8 -171.25 33.75 41.5 16.5 9 -182.25 66.5 19.5 29 10 -147 71.5 26 39 11 -113.75 66.5 20.5 49 12-84.5761830 13 -56.25 76 18.5 30 14 -27.25 73.25 18.5 35.5 15 0.5 73.25 17 35.5 16 -12.75 37.25 43.5 16.5 x y xdim (mm) ydim (mm) 1000.4570.965 2 -0.737 -0.146 0.508 0.673 3 -1.505 -0.146 0.521 0.673 4 -2.324 -0.216 0.610 0.533 5 -3.150 -0.146 0.483 0.673 6 -3.918 -0.044 0.546 0.876 7 -4.661 -0.044 0.432 0.876 8 -4.350 0.857 1.054 0.419 9 -4.629 1.689 0.495 0.737 10 -3.734 1.816 0.660 0.991 11 -2.889 1.689 0.521 1.245 12 -2.146 1.930 0.457 0.762 13 -1.429 1.930 0.470 0.762 14 -0.692 1.861 0.470 0.902 15 0.013 2.007 0.432 0.902 16 -0.324 0.946 1.105 0.419
gennum corporation mailing address: p.o. box 489, stn. a, burlington, ontario, canada l7r 3y3 shipping address: 970 fraser drive, burlington, ontario, canada l7l 5p5 tel. +1 (905) 632-2996 fax. +1 (905) 632-5946 gennum japan corporation shinjuku green tower building 27f, 6-14-1, nish i shinjuku, shinjuku-ku, tokyo, 160-0023 japan tel. +81 (03) 3349-5501, fax. +81 (03) 3349-5505 gennum uk limited 25 long garden walk, farnham, surrey, england gu9 7hx tel. +44 (0)1252 747 000 fax +44 (0)1252 726 523 gennum corporation assumes no liability for any errors or omissions in this document, or for the use of the circuits or devices described herein. the sale of the circuit or device described herein does not imply any patent license, and gennum makes no representation that the circuit or device is free from patent infringement. gennum and the g logo are registered trademarks of gennum corporation. adro? and configure? are trademarks of dynamic hearing pty ltd. ? copyright 2005 gennum corporation. all rights reserved. printed in canada. www.gennum.com GA3222 preliminary data sheet 34477 - 0 february 2006 21 21 of 21 document identification preliminary data sheet the product is in a preproduction phase and specifications are subject to change without notice. 10. revision history version ecr date changes and / or modifications a 136253 march 2005 new document. b 137260 october 2005 updates. 0 138403 february 2006 update to preliminary data sheet

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