DynamEQ®II WDRC System - GA3202 DATA SHEET DEVICE DESCRIPTION • dual channel signal processing The DynamEQ®II hybrid family is a second generation Wide Dynamic Range Compression (WDRC) system. • reflowable hybrid The small hybrid design makes it particularly suitable for CIC applications. GA3202 hybrid incorporates 24dB/oct filtering. The gain and frequency response is dependant on the user's environment. • 4th order state variable filter • adjustable crossover frequency • adjustable compression ratio from 1:1 to 4:1 • independent compression ratio adjustment for low and high frequency band Twin averaging detector circuits are optimized for sound quality during normal listening, without sacrificing comfort during sudden loud inputs. • adjustable AGC threshold levels • unique twin average detectors All input signals to DynamEQ ®II are processed by 2:1 compression before subsequent band splitting. • > 95dB dynamic range • low THD and IMD distortion The 24 dB/oct band split filter ahead of the expander/ compressor circuits allows for independent compression ratio adjustments (1:1 to 4:1) in high and low frequency channels. • drives class D integrated receivers • MPO range externally adjustable Hybrid Typical Dimensions: The gain setting stage is followed by a class D integrated receiver preamplifier stage. Symmetrical peak clipping is used to achieve MPO adjustment. 0.190 x 0.105 x 0.050in. (4.83 x 2.67 x 1.27mm) The GA3202 is designed as a CIC alternative to GS3032, GR3032 and GS3028 with MPO adjustment range modifications. thinSTAX™ PACKAGING VB 8 4:1 14 2:1 15 1:1 1 RHI 13 RLO 2 GA3202 C14 7n4 C5 8n C8 8n5 CFAD VBAT CSAD VREF 1M VREG 3 RTH REGULATOR C1 VREG 81n C6 83n FAST AVERAGE DETECTOR 1:1 2:1 SLOW AVERAGE DETECTOR 85k6 CONTROL RTH 12k RHI RLO 42k8 R2 10 4:1 2M 1 RECT. X 3k3 VB RAGC_IN 37k R1 C2 IN 4 81n IN 24 dB / Oct BAND SPLIT FILTER -A 10k GND AOUT REC 13k1 RFC -B -C OUT C4 FOUT 48k 11k MPO BIN BOUT 6 MPO R4 100k C7 C3 7 OUT 92n RL Low Frequency Exp'der / Comp'r 12k GND 5 48k RH High Frequency Exp'der / Comp'r 0µ14 80n R3 198k All resistors in ohms, all capacitors in farads, unless otherwise stated. Patent Pending Revision Date: March 2001 9 RƒC 11 BIN 12 BOUT BLOCK DIAGRAM Document No. 521 - 91 - 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] GA3202 FEATURES PAD CONNECTION ABSOLUTE MAXIMUM RATINGS PARAMETER VALUE GA3202 Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range 3 VDC 25 mW -10° C to 40° C -20° C to 70° C 1:1 RLO 1 2 4:1 7 VREG IN GND 4 3 MPO 6 5 14 2:1 15 13 12 11 10 9 8 RHI BOUT BIN RTH RƒC VB GND 7 5 OUT CAUTION ELECTROSTATIC SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION ELECTRICAL CHARACTERISTICS Conditions: Supply Voltage VB = 1.3 V, Frequency = 1 kHz, Temperature = 25°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Hybrid Current IAMP - 380 530 µA Minimum Voltage Vb - - - V Total Harmonic Distortion THD VIN = -40dBV at 1kHz - 0.2 1.0 % THD with Maximum Allowable Input THDM VIN = -23dBV, Rvc = 47kΩ - 2 - % - 3.0 - µVRMS Input Referred Noise IRN Aweight Total System Gain AV VIN = -90dBV 45 48 51 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, Rhp=1:1 Rlp=1:1 Max. Comp. Ratio CMP4 :1 VIN =3kHz, -60dBV to -40dBV, Rhp=4:1, Rlp=4:1 Fast Detector Time Constant τFAST - 8 - ms Slow Detector Time Constant τSLOW - 180 - ms FILTER Maximum Cross-over Frequency ƒc_0 Rƒc=0Ω 3.0 3.9 - kHz Nominal Cross-over Frequency ƒc_22 Rƒc=22kΩ 1.5 1.9 2.3 kHz Minimum Cross-over Frequency ƒc_220 Rƒc=220kΩ - 0.9 1.4 kHz Filter Rolloff Rate - 24 - dB/oct STAGE A and B - - - Open Loop Gain (B) AOL_B - 52 - dB Input Impedance (A) RIN - 11 - kΩ OUTPUT STAGE Stage Gain VIN=-30dBV 7.0 9 11.0 dB Max Output Level MPO RVC=220kΩ,VIN=-25dBV -16 -14 -12 dBV MPO Range ∆MPO RMPO=0Ω to 100kΩ 17 19 21 dB - 24 - kΩ Output Resistance AC ROUT All conditions and parameters remain as shown in Test Circuit unless otherwise stated in "Conditions" column. 521 - 91 - 04 2 VB 2µ2 8 15 1 13 14 2 GA3202 C14 7n4 C5 8n C8 8n5 C6 83n CFAD VBAT CSAD VREF 1M REGULATOR C1 VREG 81n 2µ2 FAST AVERAGE DETECTOR SLOW AVERAGE DETECTOR 85k6 42k8 R2 CONTROL 10 RTH 12k RTH= ∞ X VB RAGC_IN C2 4 3.9k 1 RECT. 3k3 37k R1 VIN RHI RLO 4:1 2:1 GA3202 3 1:1 2M 81n 24 dB / Oct BAND SPLIT FILTER -A IN 10k 13k1 RFC REC OUT C4 -C 7 48k RL Low Frequency Exp'der / Comp'r GND AOUT -B 92n 12k 5 48k RH High Frequency Exp'der / Comp'r 50k 11k MPO FOUT BIN C3 C7 80n 0µ14 6 BOUT R4 100k RMPO=0 R3 198k All resistors in ohms, all capacitors in farads, unless otherwise stated. 11 9 Rƒc=22k 12 RVC=100k Fig. 1 Production Test Circuit RHI 200k Linear VB RLO 200k Linear 8 15 1 13 14 2 GA3202 C14 7n4 C5 8n C8 8n5 C6 83n CFAD VBAT CSAD VREF 1M 3 REGULATOR C1 VREG 81n 1:1 2:1 FAST AVERAGE DETECTOR SLOW AVERAGE DETECTOR 85k6 CONTROL 10 RTH 12k 1 RECT. X 3k3 C2 4 81n IN 24 dB / Oct BAND SPLIT FILTER -A 10k GND AOUT 13k1 RFC REC 48k RH High Frequency Exp'der / Comp'r -B -C OUT C4 7 92n 48k RL Low Frequency Exp'der / Comp'r 12k 5 VVBB VB RAGC_IN 37k R1 Any Knowles or Microtronics microphone RHI RLO 42k8 R2 RTH 100k Log 4:1 2M 2µ2 11k MPO FOUT BIN C3 C7 80n 0µ14 BOUT 6 R4 100k Any Knowles Class D receiver R MPO 100k Log R3 198k All resistors in ohms, all capacitors in farads, unless otherwise stated. 11 9 R VC 100k Log Fig. 2 12 R ƒc 100k Log Typical Application Circuit 3 521 - 91 - 04 RHI2=0 RHI1=200k VB = 1.3V RLO2=0 RLO1=200k 8 15 1 13 14 2 GA3202 C8 8n5 GA3202 C14 7n4 C5 8n C6 83n CFAD VBAT CSAD VREF 1M 3 FAST AVERAGE DETECTOR REGULATOR C1 VREG 81n 2µ2 1:1 2:1 SLOW AVERAGE DETECTOR 85k6 42k8 R2 CONTROL 10 RTH 12k RTH = ∞ 1 RECT. X 3k3 4 81n IN 24 dB / Oct BAND SPLIT FILTER -A 10k GND AOUT 13k1 RFC REC 48k RH High Frequency Exp'der / Comp'r -B -C OUT C4 48k 50k 11k MPO FOUT BIN C3 C7 80n 0µ14 BOUT 9 R ƒc RMPO= 0 12 11 = 100k R = 100k VC Fig. 3 Characterization Circuit (Used to generate typical curves) MIC BATTERY - 1:1 1 R 4:1 14 2:1 15 LO 2 V GND IN 4 REG 3 + + MPO 6 OUT GND 5 RECEIVER + 7 100k 100k R R 2µ2 R HI 13 B OUT 12 B IN 11 TH 10 ƒC 9 V B 8 VOLUME CONTROL Fig. 4 Typical Assembly Diagram 521 - 91 - 04 4 6 R4 100k R3 198k All resistors in ohms, all capacitors in farads, unless otherwise stated. 7 92n RL Low Frequency Exp'der / Comp'r 12k 5 VB RAGC_IN 37k R1 C2 3k9 Pink Noise Generator or 1kHz for I/O RHI RLO 4:1 2M TYPICAL PERFORMANCE CURVES -10 50 -20 2 :1 -30 VIN = -80 dBV 40 4 :1 VIN = -60 dBV 30 GAIN (dB) -40 -50 1.5 :1 -60 GA3202 INPUT LEVEL (dBV) 3 :1 20 VIN = -40 dBV 10 1.2 :1 -70 1 :1 -90 -100 -90 VIN = -20 dBV 0 -80 -80 -70 -60 -50 -40 -30 -10 20 -20 100 OUTPUT LEVEL (dBV) Fig. 5 I/O Transfer function for Different Compression Ratios 50 20k VIN = -60 dBV 0.9 RIVC = 220kΩ 40 0.8 RIVC = 100kΩ 0.7 30 GAIN (dB) ) ( RHI1 RHI1+RHI2 10k Fig. 6 Frequency Response for Different Input Levels 1.0 0.6 0.5 RLO1 RLO1+RLO2 1k FREQUENCY (Hz) 0.4 RIVC = 47kΩ RIVC = 20kΩ 20 RIVC = 10kΩ 10 0.3 0.2 0 0.1 0.0 1.0 1.3 1.6 1.9 2.2 2.5 2.8 3.1 3.4 3.7 -10 20 4.0 100 COMPRESSED RATIO (RATIO) 1k 10k 20k FREQUENCY (Hz) Fig. 7 Compression Settings Resistor Ratio for High Pass Channel (RHI1 & RHI2) and Low Pass Channel (RLO1 & RLO2) Fig. 8 Frequency Response for Different RVC Values -10 -10 COMPRESSION 1:1 RMPO = 0 OUTPUT LEVEL (dBV) OUTPUT LEVEL (dBV) -20 RMPO = 10k -20 RMPO = 22k RMPO = 100k -30 RMPO = ∞ -40 -30 RTH = ∞ RTH = 10kΩ RTH = 22kΩ -50 RTH = 47kΩ RTH = 100kΩ -60 -50 -50 -40 -30 -70 -100 -20 INPUT LEVEL (dBV) RTH = 0Ω -40 -90 -80 -70 -60 -50 -40 -30 -20 INPUT LEVEL (dBV) Fig. 10 I/O Transfer Function for Different RTH Resistors Fig. 9 I/O Transfer Function for Different RMPO Resistors 5 521 - 91 - 04 RH & RL RESISTOR VALUES (kΩ) RAGC RESISTOR VALUE (kΩ) 198k 100 9k 10 1.6M 1:1 2:1 72k 4:1 15k 1 -100 -90 -80 -70 -60 -50 -40 -30 -20 INPUT LEVEL (dBV) INPUT LEVEL (dBV) Fig. 12 Expander / Compressor Resistors Values Fig. 11 Stage A Compressor Feedback Resistor Value 50 50 RƒC = ∞ 1:1 IN LOW FREQUENCY 4:1 IN HIGH FREQUENCY CROSSOVER FREQUENCY 40 40 RƒC = ∞ 100kΩ 30 GAIN (dB) GAIN (dB) 30 20 47kΩ 22kΩ 20 10kΩ 0Ω 10 10 4:1 IN LOW FREQUENCY 1:1 IN HIGH FREQUENCY 0 0 1:1 IN LOW FREQUENCY 4:1 IN HIGH FREQUENCY -10 20 100 1k VIN = -80 dBV VIN = -80 dBV 10k -10 20 20k 100 Fig. 13 Crossover Frequency Representation 20k 10 VIN = -40 dBV THD & NOISE (%) ƒ = 1kHz 1 1k 1 0.1 -80 10k FREQUENCY (Hz) -70 -60 -50 -40 -30 INPUT LEVEL (dBV) Fig. 15 THD and Noise vs Frequency 521 - 91 - 04 10k Fig. 14 Frequency Response for Different Rƒc Resistor Values 10 0.1 100 1k FREQUENCY (Hz) FREQUENCY (Hz) THD & NOISE (%) GA3202 1000 Fig. 16 THD and Noise vs Input Level 6 -20 10 10 VIN = -40 dBV ∆ƒ = 200Hz ƒ = 4kHz ∆ƒ = 200Hz IMD (%) IMD (%) 1 1 0.1 10k 0.01 -80 100k GA3202 0.1 3k -70 FREQUENCY (Hz) -60 -50 -40 -30 -20 INPUT LEVEL (dBV) Fig. 17 Intermodulation Distortion (CCIF) vs Frequency Fig. 18 Intermodulation Distortion (CCIF) vs Input Level PACKAGE DIMENSIONS 0.190 (4.83) GA3202 XXXXXX 0.105 (2.67) 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. Minimum pad size: 0.022 x 0.025 (0.56 x 0.64) XXXXXX - work order number. This hybrid is designed to be reflowed according to Gennum's recommended reflow process (Information Note 521-45). 0.055 MAX (1.40) 1:1 1 RLO 2 4:1 14 2:1 15 RHI 13 BOUT 12 VREG 3 IN 4 MPO 6 GND GND 5 BIN 11 RTH 10 OUT 7 RƒC 9 VB 8 GENNUM CORPORATION REVISION NOTES: 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 Converted to Data Sheet. DOCUMENT IDENTIFICATION: DATA SHEET 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 March 1998 Gennum Corporation. All rights reserved. 7 Printed in Canada. 521 - 91 - 04