Programmable DynamEQ®II - GM3038 DATA SHEET DESCRIPTION FEATURES • five programmable parameters • 24 dB/oct state variable filter • twin average detectors The gain and frequency response are dependent on the user’s environment. The Twin Average Detector circuit is optimized for sound quality during normal listening without sacrificing comfort during sudden loud sounds. • handles high input levels • drives class D integrated receivers The GM3038 features five programmable parameters: independent compression ratio adjustment in the High and Low frequency channels, threshold adjustment, crossover frequency adjustment and MPO adjustment. STANDARD PACKAGING Hybrid typical dimensions: 0.250 in x 0.115 in x 0.120 in (6.35 mm x 2.92 mm x 3.05 mm) The ER102 controller memory chip is supported by a variety of programmers available on the market. The output stage is designed as a preamplifier for the class D integrated receiver. VB 1 C6 0µ22 VDD C5 GM3038 10n R6R R5R R5S R5 VB CSAD 18 7 CFAD 2 1M 1:1A 1:1B 1 1M 53.5kΩ VREG 7 VREG 8 C1 0µ1 SLOW AVERAGE DETECTOR REGULATOR RTH 19 R3R R6 1MΩ 6 R6S 4:1 RHI 5 4 ER102 600kΩ RLO 3 85.6kΩ FAST AVERAGE DETECTOR CONTROL 1 RECTIFIER X VB 50k R R3 AGC_IN 48k RH 150kΩ C2 IN 11 6 10k IN 0µ2 24 dB / Oct BAND SPLIT FILTER -A -B -C 9 VSS GND AOUT SDA 5 14 13 RFC R4 SDA FOUT 16 BIN 17 BOUT R2 150kΩ 300kΩ C3 R4R OUT 15 MPO 14k 12 REC 2 0µ1 8k4 Low Frequency Expander / Compressor 12k 10 20 48k RL GND 8 C4 OUT High Frequency Expander / Compressor R2R C7 0µ22 0µ1 4 BIN Patent pending All resistors in ohms, all capacitors in farads unless otherwise stated. 3 BOUT BLOCK DIAGRAM Revision Date: August 1999 Document No. 521 - 62 - 04 GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996 Web Site: www.gennum.com E-mail: [email protected] GM3038 The GM3038 programmable hybrid is composed of a DynamEQ® II Wide Dynamic Range Compression signal processor and the ER102 controller memory chip. The hybrid incorporates 24 dB/oct filtering. DynamEQ® II flexibility • ABSOLUTE MAXIMUM RATINGS PAD CONNECTION PARAMETER VALUE / UNITS Supply Voltage Power Dissipation GM3038 VB GND 2VDC 25 mW Operating Temperature Range -10° C to 40° C Storage Temperature Range -20° C to 70° C Voltage on SDA pad OUT VREG BOUT IN 16V BIN SDA CAUTION ELECTROSTATIC SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION ELECTRICAL CHARACTERISTICS Refer to ER102 Data Sheet for GM3038 communication and SDA pin Electrical Characteristics Conditions: Supply Voltage VB = 1.3 V, Frequency = 1 kHz, Temperature = 25°C The programmable parameters are adjusted to the following set values unless otherwise specified. (MPO) R2 - set 0; (TH) R3 - set 15; (FC) R4 - set 7; (HP) R5 - set 0; (LP) R6 - set 0 PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS µA Hybrid Current IAMP - 370 530 Minimum Voltage Vb 1.1 - - V Total Harmonic Distortion THD VIN = -40dBV at 1kHz - 0.6 1.25 % THD with Maximum Allowable Input THDM VIN = -23dBV, Rvc = 47kΩ - 2 10 % - 3.0 - µVRMS Input Referred Noise IRN A Weighted Filter Total System Gain AV VIN = -90dBV 46 49 52 dB Regulator Voltage VREG ILOAD = 30µA 890 930 1000 mV AGC Lower Threshold THLO -91 -87 -83 dBV Upper Threshold THHI -36 -32 -28 dBV Compression Gain Range ∆A Gain(-90dBVIN) -Gain(-30dBVIN) 37.5 40.5 43.5 dB System Gain in Compression A60 VIN =-60dBV 26 29 32 dB 0.9 1.0 1.1 Ratio 3.6 4.0 4.3 Ratio Min. Compression Ratio CMP1 :1 VIN=3kHz, -60dBV to -40dBV, R5 - set 31; R6 - set 15 Max. Comp. Ratio CMP4 :1 VIN =3kHz, -60dBV to -40dBV, R5 - set 0; R6 - set 0 Fast Detector Time Constant τFAST - 10 - ms Slow Detector Time Constant τSLOW - 220 - ms FILTER Maximum Crossover Frequency ƒc_0 R4 - set 0 3.0 3.9 - kHz Nominal Crossover Frequency ƒc_22 R4 - set 7 1.38 1.8 2.18 kHz Minimum Crossover Frequency ƒc_220 R4 - set 13 - 0.9 1.4 kHz - 24 - Filter Rolloff Rate 521 - 62 - 04 2 dB/oct ELECTRICAL CHARACTERISTICS continued Refer to ER102 Data Sheet for GM3038 communication and SDA pin Electrical Characteristics Conditions: Supply Voltage VB = 1.3 V, Frequency = 1 kHz, Temperature = 25°C The programmable parameters are adjusted to the following set values unless otherwise specified. (MPO) R2 - set 0; (TH) R3 - set 15; (FC) R4 - set 7; (HP) R5 - set 0; (LP) R6 - set 0 SYMBOL CONDITIONS MIN TYP MAX - - - STAGE A and B UNITS Open Loop Gain (B) AOL_B - 52 - dB Input Impedance (A) RIN 9 11 13 kΩ 7 9 11 dB -14.5 -12.5 -10.5 13 15 17 dB - 24 - kΩ OUTPUT STAGE Stage Gain AC Max Output Level VIN=-30dBV RVC=220kΩ,VIN=-25dBV MPO ∆MPO MPO Range Output Resistance R2 - set 0 to set 11 ROUT dBV All conditions and parameters remain as shown in the Test Circuit unless otherwise specified in the CONDITIONS column. VB VB 1 VDD C6 C5 0µ22 10n GM3038 R6R R5R R5S R5 VB CSAD 18 7 CFAD 2 1M 1:1A 1:1B 1 1M 2µ2 VREG 8 C1 0µ1 SLOW AVERAGE DETECTOR REGULATOR RTH 19 CONTROL R R3 RHI 5 4 RLO ER102 3 FAST AVERAGE DETECTOR 1 RECTIFIER X 50k R3R 4:1 600kΩ 85.6kΩ 53.5kΩ 7 R6 1MΩ 6 R6S VB AGC_IN 48k RH 150kΩ C2 3.9k 11 6 IN 0µ2 10k 24 dB / Oct BAND SPLIT FILTER -A OUT High Frequency Expander / Compressor -B -C RL 8 9 VSS GND AOUT SDA 5 Low Frequency Expander / Compressor 12k 10 12 REC 14 13 RFC R4 FOUT R4R 2 0µ1 50k 48k 17 16 BIN BOUT R2 150kΩ 300kΩ C3 C4 15 MPO 14k SDA R2R C7 0µ22 0µ1 Table of Defaults R2 - set 0 R3 - set 15 R4 - set 7 R5 - set 0 R6 - set 0 8k4 20 4 All resistors in ohms, all capacitors in farads unless otherwise stated BIN RVC 3 BOUT 100kΩ Fig. 1 Production Test Circuit 3 521 - 62 - 04 GM3038 PARAMETER VB VB 1 VDD C6 C5 0µ22 10n GM3038 R6R R5R R5S R5 VB CSAD 18 7 CFAD 1:1A 2 1M 1:1B 1 1M GM3038 VREG 8 7 C1 0µ1 SLOW AVERAGE DETECTOR REGULATOR RTH 19 Any Knowles or Microtronic microphone R 5 4 ER102 600kΩ RLO 3 FAST AVERAGE DETECTOR CONTROL R3 4:1 RHI 85.6kΩ 1 RECTIFIER X 50k R3R R6 1MΩ 6 53.5kΩ VREG R6S AGC_IN 48k RH 150kΩ C2 IN 10k 11 6 OUT High Frequency Expander / Compressor 24 dB / Oct BAND SPLIT FILTER -A IN 0µ2 -B -C RL GND 9 VSS 8 10 AOUT 13 RFC SDA 5 17 16 BIN BOUT R2R R2 150kΩ 300kΩ R4R C3 Any Knowles class D integrated receiver 2µ2 15 MPO 14 FOUT R4 OUT 0µ1 48k 8k4 14k 12 REC C4 2 20 Low Frequency Expander / Compressor 12k GND SDA VB VB C7 0µ22 0µ1 4 3 RVC BOUT BIN All resistors in ohms, all capacitors in farads, unless otherwise stated 100kΩ LOG Fig. 2 Typical Application Circuit VB = 1.3V VB 1 VDD C6 C5 0µ22 10n GM3038 R6R R5R R5S R5 VB CSAD 18 7 CFAD 2 1M 1:1A 1:1B 1 1M 53.5kΩ 7 2µ2 VREG 8 C1 0µ1 SLOW AVERAGE DETECTOR REGULATOR RTH 19 CONTROL R R3 VIN = -80dBV RHI 5 4 RLO ER102 3 85.6kΩ Table of Defaults R2 - set 0 R3 - set 15 R4 - set 15 R5 - set 31 R6 - set 15 1 RECTIFIER X AGC_IN 11 6 10k IN 24 dB / Oct BAND SPLIT FILTER -A OUT High Frequency Expander / Compressor -B -C RL Pink Noise Generator 8 9 VSS GND 10 AOUT 5 12 REC 8k4 Low Frequency Expander / Compressor 12k 14 R4 SDA FOUT R4R 0µ1 C7 4 BIN RVC 100kΩ 4 50k R2 150kΩ Fig. 3 Characterization Circuit (Used to generate typical curves) 521 - 62 - 04 2 0µ1 48k BOUT 0µ22 All resistors in ohms, all capacitors in farads, unless otherwise stated C4 17 16 BIN 300kΩ C3 20 15 MPO 14k 13 RFC VB 48k RH 150kΩ C2 0µ2 to programmer 4:1 600kΩ FAST AVERAGE DETECTOR 50k R3R R6 1MΩ 6 R6S 3 BOUT R2R MICROPHONE 2µ2 RECEIVER + + GM3038 TO PROGRAMMER BATTERY - + VOLUME CONTROL Fig. 4 Typical Assembly Diagram TYPICAL PERFORMANCE CURVES -20 ƒ = 1kHz R4 - set 15 48 R5 - set 0 VIN = -80dBV 44 -30 36 GAIN (dB) OUTPUT LEVEL (dBV) 40 -40 -50 R5 - set 31 -60 Used Settings 0 9 12 14 -70 -80 -90 -100 16 17 18 19 20 21 23 24 26 28 30 31 32 28 24 20 16 12 8 4 0 -90 - 80 -70 -60 -50 -40 -30 0 -20 2 4 6 INPUT LEVEL (dBV) 8 10 12 14 16 18 20 22 24 26 28 30 31 R5 RESISTOR SET ON ER102 DIE (set 0 - short, set 31- open) Fig. 5 I/O Transfer Function for Different Compression Ratios Fig. 6 High Frequency Gain (Compression Ratio Adjustment) (High Frequency Channel) -20 ƒ = 1kHz R4 - set 0 48 R6 - set 0 VIN = -80dBV 44 -30 36 -40 GAIN (dB) OUTPUT LEVEL (dBV) 40 -50 -60 R6 - set 15 32 28 24 20 16 -70 12 8 -80 4 -90 -100 0 -90 -80 -70 -60 -50 -40 -30 -20 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R6 RESISTOR SET ON ER102 DIE INPUT LEVEL (dBV) (set 0 - short, set 15- open) Fig. 7 I/O Transfer Function for Different Compression Ratios Fig. 8 Low Frequency Gain (Compression Ratio Adjustment) (Low Frequency Channel) 5 521 - 62 - 04 50 50 R6 - SET 0 VIN = -80 dBV R5 - SET 0 VIN = -80 dBV R4 - SET 0 40 40 GAIN (dB) GAIN (dB) 30 R4 - SET 15 20 10 30 R4 - SET 15 20 10 0 0 20 100 1k 10k 20k 20 100 1k FREQUENCY (kHz) 20k Fig. 10 Frequency Response for Different Crossover Frequency Steps 50 10k CROSSOVER FREQUENCY (kHz) VIN = -80 dBV 40 GAIN (dB) 10k FREQUENCY (kHz) Fig. 9 Frequency Response for Different Crossover Frequency Steps R6 - SET 0 R4 - set 13 30 20 R5 - SET 0 R4 - SET 13 10 0 20 100 1k 10k VIN = -80dBV 1k 500 20k 0 1 2 3 ƒ = 1kHz R3 - SET 15 R3 - SET 0 -50 -60 -70 -100 -90 -80 6 7 8 9 10 11 12 13 14 15 Fig. 12 Crossover Frequency Adjustment OUTPUT THRESHOLD LEVEL (dBV) -40 R5 - SET 0 R6 - SET 0 5 (set 0 - short, set 15 - open) Fig. 11 Crossover Frequency Representation for Step 13 -30 4 R4 RESISTOR SET ON ER102 DIE FREQUENCY (kHz) OUTPUT LEVEL (dBV) GM3038 R4 - SET 0 -70 -60 -62 -64 -66 -68 -70 -72 -74 -76 -78 -80 -82 -84 -86 -88 -90 0 -60 1 2 3 4 5 6 7 8 9 10 11 12 INPUT LEVEL (dBV) R3 RESISTOR SET ON ER102 DIE Fig. 13 I/O Transfer Function for Different Threshold Steps Fig. 14 Threshold Adjustment 521 - 62 - 04 (set 0 - short, set 15 - open) 6 13 14 15 -10 -10 R2 - SET 0 VIN -22 dBV OUTPUT LEVEL (dBV) -20 -30 R2 - SET 11 -40 -14 -16 -18 -20 GM3038 OUTPUT LEVEL (dBV) -12 -22 -24 -26 -28 -30 -50 -50 -40 -30 0 -20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R2 RESISTOR SET ON ER102 DIE INPUT LEVEL (dBV) (set 0 - short, set 11 -51 kΩ) Fig. 15 I/O Transfer Function for Different MPO Steps Fig. 16 MPO Adjustment 10 10 VIN = -40 dBV THD & NOISE (%) THD & NOISE (%) ƒ = 1 kHz 1 0.1 1.0 0.1 0.1k 1.0k -80 10k -70 -60 -50 -40 -30 -20 FREQUENCY (kHz) INPUT LEVEL (dBV) Fig. 17 THD and Noise vs Frequency Fig. 18 THD and Noise vs Input Level 10 10 VIN = -40 dBV ∆ ƒ = 200 Hz ƒ = 4 kHz ∆ƒ = 200 Hz IMD (%) IMD (%) 1.0 1.0 0.1 0.01 -80 0.1 3k 10k 100k -70 -60 -50 - 40 - 30 -20 FREQUENCY (kHz) INPUT LEVEL (dBV) Fig. 19 Intermodulation Distortion (CCIF) vs Frequency Fig. 20 Intermodulation Distortion (CCIF) vs Input Level 7 521 - 62 - 04 PACKAGE DIMENSIONS 60 RVC=220k 50 0.250 (6.35) RVC=100k XXXXXX GAIN (dB) RVC=22k 30 GM3038 GM3038 RVC=47k 40 RVC=10k 20 10 20 100 1k 10k 20k FREQUENCY (kHz) Fig. 21 Frequency Response for Different RVC Values 0.130 MAX (3.30) 0.115 (2.92) Dimensions are in inches. Dimensions in parenthesis are in millimetres converted from inches and include minor rounding errors. 1.0000 inches = 25.400 mm. Dimension tolerances ± 0.003 (± 0.08) unless otherwise stated. XXXXXX - work order number. This hybrid is designed for point-to-point manual soldering. DOCUMENT IDENTIFICATION: DATA SHEET The product is in production. Gennum reserves the right to make changes at any time to improve reliability, function or design, in order to provide the best product possible. GENNUM CORPORATION MAILING ADDRESS: P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 Tel. +1 (905) 632-2996 Fax +1 (905) 632-2814 SHIPPING ADDRESS: 970 Fraser Drive, Burlington, Ontario, Canada L7L 5P5 REVISION NOTES: Added maximum voltage on SDA pad. Change to max. supply voltage. GENNUM JAPAN CORPORATION C-101, Miyamae Village, 2-10-42 Miyamae, Suginami-ku, Tokyo 168-0081, Japan Tel. +81 (3) 3334-7700 Fax: +81 (3) 3247-8839 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 1996 Gennum Corporation. All rights reserved. 521 - 62 - 04 8 Printed in Canada.