PARAGON ™ DIGITAL SO3 PAL Configuration PRELIMINARY DATA SHEET DESCRIPTION • multi channel WDRC processing The S03 Product Abstraction Layer™ (PAL) in combination with second generation PARAGON™ DIGITAL hybrids (GB3211, GB3215, GA3214) provides an advanced, four channel Wide Dynamic Range Compression (WDRC) DSP system with embedded FRONTWAVE® capability*. The new features added in S03 PAL revision include software configurable, two memory select switches and audible memory change indicator tones. • 4 independently configurable Biquad Filters • fully adjustable crossover frequencies • embedded FRONTWAVE® technology* • AGC Detector in each channel with adjustable time constants (Single or Twin Detector) • flexible WDRC I/O curve adjustment (channel independent) • wideband gain adjustment with external VC option • notch filter (variable centre and width) and dynamic depth (gain dependent) • soft squelch (low level expansion) with variable threshold and variable time constants • telecoil option • AGCo (variable threshold and time constants) • digital peak clipping option • low battery indicator • tone generator (programmable level and frequency) • 4 memories with full configuration storage • momentary and static memory select operation • separate static memory D select switch* The highly configurable digital signal processor enables extremely versatile fitting with independent channel compression characteristics, including five parameter I/O curve adjustment and variable AGC time constants. All programmable parameters, including the crossover frequencies, have generous adjustment ranges and excellent resolution. Each channel contains independent AGC control with Gennum's proven Twin Detector approach. FRONTWAVE® enables* the efficient addition of multimicrophone directionality with exceptional flexibility. A wide range of polar patterns are possible and can be programmed in the field after a simple calibration procedure is performed on the complete hearing aid by the manufacturer. Different polar patterns can be programmed and can be changed as required within each memory. Advanced features include low-level expansion (squelch), a fully programmable notch filter with optional gain dependent operation, and a pure tone generator enabling in situ audiometry. • audible memory change indicator * This option is available on specific products. This data sheet is a part of a set of documents available for this product. Please refer to “Getting Started with PARAGON™ DIGITAL” information note for a list of other documents. CHANNEL PROCESSING FMIC A/D TWIN DETECTORS FRONTWAVE* 70nF CHANNEL PROCESSING FRONTWAVE* PRE 1 & 2 BIQUAD FILTERS 70nF BAND SPLIT FILTER TWIN DETECTORS CHANNEL * PROCESSING Σ NOTCH FILTER VC TWIN DETECTORS RMIC* A/D T TWIN DETECTOR 60nF CHANNEL * PROCESSING TWIN DETECTORS S03 POST A BIQUAD FILTER SQUELCH PEAK CLIPPING PARAGON™ Digital D/A HBRIDGE OUT+ OUT- TONE GENERATOR AGC-O POST B BIQUAD FILTER * This option is available on specific products. BLOCK DIAGRAM Doc.No.23381 - 0 [Rev. September 2002] 1 SO3 FEATURES ELECTRICAL CHARACTERISTICS RANGE PARAMETER MIN MAX 0 40 UNITS RESOLUTION ACCURACY µs 1 type 1 dB N/A N/A FRONTWAVE® 1 Time Delay 20 Low Frequency Equalizer Corner Frequency 0.05 16 kHz Table 1 type 1,2 0 -18 dB N/A N/A Hz N/A type 1 SO3 Low Frequency Boost TELECOIL Mic attenuation in MT mode Low Pass compensation Filter 500 FILTER BANKS Crossover Frequency (Ch1/2) 0.300 7.6 kHz N/A type 1,2 1 Crossover Frequency (Ch2/3) 0.500 7.8 kHz N/A type 1,2 Crossover Frequency (Ch3/4)1 0.700 8 kHz N/A type 1,2 FREQUENCY SHAPING Pre l and Pre 2 Biquad Filter Design Specific N/A type 1,2 Post A and Post B Biquad Filter Design Specific N/A type 1,2 INDEPENDENT CHANNEL PROCESSING Low Level Gain -18 42 dB Table 2 type 3 High Level Gain -18 42 dB Table 2 type 3 Lower Threshold 30 110 dBSPL Table 2 type 3 Upper Threshold 30 110 dBSPL Table 2 type 3 Compression Ratio 1:1 100:1 Ratio Table 1 type 3 AGCi Attack Time Constant (Fast & Slow) 0.25 8192 ms Table 1 type 1,3 AGCi Release Time Constant (Fast & Slow) 0.25 8192 ms Table 1 type 1,3 Wideband System Gain -36 12 dB Table 2 type 3 Wideband Attack Time Constant (Fast & Slow) 0.25 8192 ms Table 1 type 1,3 Wideband Release Time Constant (Fast & Slow) 0.25 8192 ms Table 1 type 1,3 WIDEBAND SYSTEM GAIN Converter Gain See hardware Data Sheet External VC -48 0 dB Table 2 type 3 Internal VC Attenuator -48 0 dB Table 2 type 3 -19 83 dB N/A Note 1 -40 0 dBFS* Table 2 type 3 Ratio N/A N/A TOTAL SYSTEM GAIN Total System Gain AGCo AGCo Output Limiting ∞ :1 AGCo Compression Ratio AGCo Attack Time Constant (Fast & Slow) 0.25 8192 ms Table 1 type 1,3 AGCo Release Time Constant (Fast & Slow) 0.25 8192 ms Table 1 type 1,3 * peak output is defined as largest sine wave possible at a the resonant frequency of the receiver 1 this option is available on specific products. 2 GENNUM CORPORATION 23381 - 0 ELECTRICAL CHARACTERISTICS (continued) RANGE PARAMETER MIN MAX -40 0 UNITS RESOLUTION ACCURACY dB Table 2 type 3 ratio N/A N/A dBSPL Table 2 type 3 PEAK CLIPPER PC Output Limiting Squelch Expansion Ratio Squelch Threshold 1:2 30 60 Squelch Attack Time SO3 LOW LEVEL EXPANSION (SOFT SQUELCH) Same as Wideband Fast Attack Time Constant Squelch Release Time Same as Wideband Fast Release Time Constant NOTCH FILTER NF Center Frequency 0.8 5 kHz N/A type 1,2 NF Attenuation 0 12 dB Table 1 N/A NF Bandwidth 1/12 1 octave Table 1 N/A Pure Tone Frequency 0.25 16 kHz Table 1 type 1,2 Pure Tone Amplitude -96 0 dBFS Table 2 type 3 TONE GENERATOR NOTE 1: Total System Gain consists of Wideband System Gain + High and Low Independent Channel Gains + Converter Gain and accuracy of this parameter is dependent on accuracy of the components. Accuracy definitions: type 1: accuracy is determined by the clock frequency deviation type 2: accuracy is determined by the quantization error of 16bit coefficient and 20bit or higher data word. type 3: accuracy is determined by the quantization error of a parameter word (see table 2 for word length) and 20bit or higher data word. NOTE 2: Refer to Doc #20143 “PARAGON™ Digital Reference Guide” for parameter description. . 3 GENNUM CORPORATION 23381 - 0 TABLE 1: Parameter Values Supported by GB3210-S02 PAL 1 ; 1.016 ; 1.032 ; 1.050 ; 1.067 ; 1.085 ; 1.103 ; 1.123 ; 1.143 ; 1.164 ; 1.185 ; 1.210 ; 1.230 ; 1.255 ; 1.28 ; 1.31 ; 1.33 ; 1.36 ; 1.39 ; 1.42 ; 1.45 ; 1.49 ; 1.52 ; 1.56 ; 1.60 ; 1.64 ; 1.68 ; 1.73 ; 1.78 ; 1.83 ; 1.88 ; 1.94 ; 2.00; 2.06 ; 2.13 ; 2.21 ; 2.29 ; 2.37 ; 2.46 ; 2.56 ; 2.67 ; 2.78 ; 2.90 ; 3.05 ; 3.20; 3.37 ; 3.56 ; 3.76 ; 4.00 ; 4.27 ; 4.57 ; 4.92 ; 5.33 ; 5.82 ; 6.40 ; 7.11 ; 8.00 ; 9.14 ; 10.67 ; 12.80 ; 16.00 ; 21.33 ; 32.00 ; 64.00 ; 100 RATIO Attack and Release Time constant 0.25 ; 0.5 ; 1 ; 2 ; 4 ; 8 ; 16 ; 32 ; 64 ; 128 ; 256 ; 512 ; 1024 ; 2048 ; 4096 ; 8192 ms NF Attenuation 0 ; 6 ; 12 dB NF Bandwidth 1/12 ; 1/6 ; 1/4 ; 1/3 ; 1/2 ; 1 Pure Tone Frequency* 0.250 ; 0.500 ; 0.640 ; 0.800 ; 1.00 ; 1.28 ; 1.60 ; 2.00 ; 3.20 ; 4.00 ; 6.40 ; 8.00 ; 16.00 octave kHz *other frequencies are available with increased harmonics components TABLE 2: Resolution of the Parameters The resolution of the parameters listed in this table is determined by bit quantization: D = 20log(n)-20log(n-1); where n = decimal representation of binary word PARAMETER WORD LENGTH RESOLUTION FOR LOWEST GAIN / LEVEL RESOLUTION FOR HIGHEST GAIN/LEVEL Low Level Gain 20bits 0.01682 dB 0.00002 dB High Level Gain 20bits 0.01682 dB 0.00002 dB Lower Threshold 20bits 1.58362 dB 0.00002 dB Upper Threshold 20bits 1.58362 dB 0.00002 dB Wideband System Gain 11bits 6.02060 dB 0.03426 dB Internal VC Attenuator 9bits 3.52183 dB 0.01701 dB External VC 9bits 3.52183 dB 0.01701 dB AGCo Output Limiting 20bits 0.00166 dB 0.00002 dB PC Output Limiting 20bits 0.00166 dB 0.00002 dB Squelch Threshold 20bits 1.58362 dB 0.05280 dB Pure Tone Amplitude 16bits 6.02060 dB 0.00027 dB Compression Ratio 7bits N/A N/A Attack and Release Time constants 5bits N/A N/A PARAMETER NOTE: Parameter Word Length includes the sign bit, where applicable. 4 GENNUM CORPORATION 23381 - 0 SO3 Compression Ratio Table 3: Memory Select Switches State Table CONTROL BIT MSS D_only MECHANICAL SWITCH P3_en MS2 ACTION MS1 SO3 Momentary mode 0 X X X LO/Z No action 0 X X X HI Next Mem Static mode 1 1 1 0 0 0 0 0 0 LO LO LO LO Z HI Mem C Mem C Mem D 1 1 1 0 0 0 0 0 0 HI HI HI LO Z HI Mem A Mem A Mem B 1 1 1 0 0 0 1 1 1 LO LO LO LO Z HI Mem B Mem C Mem D 1 1 1 0 0 0 1 1 1 HI HI HI LO Z HI Mem C Mem A Mem B 1 1 1 1 1 1 0 0 0 LO LO LO LO Z HI Mem D Mem D Mem D 1 1 1 1 1 1 0 0 0 HI HI HI LO Z HI Mem A Mem A Mem B 1 1 1 1 1 1 1 1 1 LO LO LO LO Z HI Mem D Mem D Mem D 1 1 1 1 1 1 1 1 1 HI HI HI LO Z HI Mem C Mem A Mem B 5 GENNUM CORPORATION 23381 - 0 SO3 CHANNEL * PROCESSING A/D 3k9 TWIN DETECTORS FRONTWAVE* 70nF Σ FRONTWAVE* PRE 1 & 2 BIQUAD FILTERS 70nF POST A BIQUAD FILTER TWIN DETECTORS CHANNEL PROCESSING NOTCH FILTER VC TWIN DETECTORS 3k9 1k A/D TWIN DETECTOR 60nF PARAGON™ Digital OUT CHANNEL * PROCESSING BAND SPLIT FILTER S03 CHANNEL PROCESSING SQUELCH PEAK CLIPPING D/A HBRIDGE LP FILTER TONE GENERATOR AGC-O TWIN DETECTORS POST B BIQUAD FILTER *This option is available on specific products. Fig. 1 Characterization Circuit CAUTION ELECTROSTATIC SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION REVISION NOTES: Memory Select Switches State Table changed. DOCUMENT IDENTIFICATION PRELIMINARY DATA SHEET The product is in a preproduction phase and specifications are subject to change without notice. GENNUM CORPORATION GENNUM JAPAN CORPORATION MAILING ADDRESS: P.O. Box 489, Stn A, Burlington Ontario, Canada L7R 3Y3 Tel. +1 (905) 632-2996 fax: +1 (905) 632-2814 Shinjuku Green Tower Building 27F, 6-14-1, Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023 Japan Tel. +81 (03) 3349-5501, Fax. +81 (03) 3349-5505 SHIPPING ADDRESS: 970 Fraser Drive, Burlington, Ontario, Canada L7L 5P5 Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. © Copyright April 2002 Gennum Corporation. All rights reserved. Printed in Canada. 6 23381 - 0