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SA3229-E1 Datasheet(PDF) 1 Page - ON Semiconductor |
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SA3229-E1 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 16 page © Semiconductor Components Industries, LLC, 2016 May, 2016 − Rev. 0 1 Publication Order Number: SA3229/D RHYTHM SA3229 Preconfigured DSP System for Hearings Aids Description The RHYTHM t SA3229 hybrid from ON Semiconductor is a trimmer−configurable DSP system based on a four−channel compression circuit featuring a feedback cancellation algorithm. Based on a phase cancellation method, SA3229’s adaptive feedback reduction algorithm provides added stable gain to enable extra gain and user comfort. It features rapid adjustment for dynamic feedback situations and resistance to tonal inputs. In addition to these adaptive algorithms, SA3229 also supports the following features: up to four channel WDRC, low−distortion compression limiting, cross fading between audio paths for click−free memory changes, eight−band graphic equalizer, eight configurable generic biquad filters, programming speed enhancements, in−channel squelch to attenuate microphone and circuit noise in quiet environments, optional peak clipping, flexible compression adjustments, volume control, rocker switch, noise generation for Tinnitus treatment, and industry−leading security features to avoid cloning and software piracy. A trimmer interface supports manual circuit configuration. It continuously monitors trimmer positions and translates them into the hearing−aid parameters of choice. A Serial Data or I2C Interface provides full programmability at the factory and in the field. RHYTHM SA3229 is a single−chip hybrid with a one−time programmable (OTP) memory intended for low cost applications requiring high gain. Features • Adaptive Feedback Cancellation • WDRC Compression with Choice of 1, 2 or 4 Channels of Compression • Auto Telecoil with Programmable Delay • EVOKE LITEt Acoustic Indicators • Noise Generator for Tinnitus Treatment or In−Situ Audiometry • Frequency Response Shaping with Graphic EQ • Trimmer Compatibility – Four Three−Terminal Trimmers with Configurable Assignments of Control Parameters • I2C and SDA Programming • Rocker Switch Support for Memory Change and/or Volume Control Adjustment • Support for Active High or Active Low Switching • Analog or Digital Volume Control with Programmable Range • High Quality 20−bit Audio Processing • High Power/High Gain Capability • Configurable Low Battery Indicator www.onsemi.com SIP25 HYBRID CASE 127DZ PAD CONNECTION MARKING DIAGRAM SA3229−E1 XXXXXX SA3229 = Specific Device Code E1 = RoHS Compliant Hybrid XXXXXX = Work Order Number (Bottom View) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 VIN1 19 TR4 20 TR3 21 TR2 22 TR1 23 N/C 25 24 VIN2 TIN DAI VC D_VC SDA CLK MS1 VREG MGND GND PGND OUT+ OUT− VBP VB MS2 See detailed ordering and shipping information on page 13 of this data sheet. ORDERING INFORMATION |
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