Multimemory Programmable DynamEQ®II - GA3204 DATA SHEET DESCRIPTION • DynamEQ®II flexibility The GA3204 programmable hybrid is composed of a DynamEQ®II Wide Dynamic Range Compression signal processor and the GP523 controller memory chip. The hybrid incorporates 24dB/oct filtering. • six programmable parameters • four memories 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. • 24dB/oct state variable filter • twin average detectors • handles high input levels The GA3204 features six programmable parameters: independent compression ratio adjustment in the high and low frequency channels, VC adjustment, threshold adjustment, crossover frequency adjustment and MPO adjustment. • drives class D integrated receivers thinSTAX™ PACKAGING Hybrid typical dimensions: 0.200 x 0.115 x 0.060in. (5.08 x 2.92 x 1.52mm) Four independent memories add to hybrid flexibility. The output stage is designed as a preamplifier for the class D integrated receiver. The GA3204 hybrid code programmed into GP523 is “1”. VB 7 GA3204 C8 8n5 C14 7n4 C5 8n 1M R3 185k R6 185k GP523 C6 83n 2M 42k8 VREG 1 FAST AVERAGE DETECTOR REG. C1 81n 3k3 45k5 R2 SLOW AVERAGE DETECTOR CONTROL 85k6 1 RECT. X VB R AGC_IN RH C2 IN 2 81n 10k -A 12k 24 dB / Oct BAND SPLIT FILTER -B -C RL GND2 3 48k C4 92n 11k Low Frequency Expander/Compressor GND1 4 6 13k1 C3 SDA 10 MS 48k High Frequency Expander/Compressor C7 80n 0µ14 R8 92k 5 OUT 64k R5 92k R1 R4 184k 9 All resistors in ohms, all capacitors in farads, unless otherwise stated. BIN R7 460k 8 BOUT BLOCK DIAGRAM Revision Date: January 2002 Document No. 522 - 17 - 05 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] GA3204 FEATURES PAD CONNECTIONS ABSOLUTE MAXIMUM RATINGS PARAMETER VALUE Supply Voltage 2VDC Power Dissipation VREG IN GND2 GND1 1 2 3 4 5 MS 25 mW -10° C to 40° C Storage Temperature Range -20° C to 70° C 10 CAUTION SDA ELECTROSTATIC SENSITIVE DEVICES 9 8 7 6 BIN BOUT VB OUT GA3204 Operating Temperature Range DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION ELECTRICAL CHARACTERISTICS Conditions: Supply Voltage V B = 1.3 V, Frequency = 1 kHz, Temperature = 25°C. The programmable parameters are adjusted to the following set values unless otherwise specified. (MPO) R5 - Tap 0; (TH) R2 - Tap 15; (FC) R1 - Tap 7; (HP) R6 - Tap 0; (LP) R3 - Tap 0; (VC) R4 - Tap 15, R7 - Tap 23; R8 - Tap 0. PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Hybrid Current IAMP - 395 580 µA Minimum Voltage Vb 1.1 - - V Total Harmonic Distortion THD VIN = -40dBV at 1kHz - 0.6 1 % THD with Maximum Allowable Input THDM VIN = -23dBV, RVC = 47kΩ - 2 10 % Aweighted filter - 3 - µVRMS Input Referred Noise IRN Total System Gain AV VIN = -90dBV 44 47 50 dB Regulator Voltage VREG ILOAD = 30µA 890 930 1000 mV AGC Lower Threshold THLO -88.5 -84.5 -80.5 dBV Upper Threshold THHI -36 -32 -28 dBV 35.5 38.5 41.5 dB 26 29 32 dB 0.9 1.0 1.1 Ratio 3.6 4.0 4.3 Ratio Compression Gain Range ∆A Gain (-90dBVIN) -Gain(-30dBVIN) System Gain in Compression A60 VIN = -60dBV VIN = 3kHz, -60dBV to -40dBV; R3 - Tap 15; R6 - Tap 15 VIN = 3kHz, -60dBV to -40dBV; R3 - Tap 0; R6 - Tap 0 Minimum Compression Ratio CMP1:1 Maximum Compression Ratio CMP4:1 Fast Average Detector Time Constant Slow Average Detector Time Constant τFAST - 8 - ms τSLOW - 180 - ms FILTER Maximum Crossover Frequency ƒC_MAX R1 - Tap 0 3 3. 9 - kHz Nominal Crossover Frequency ƒC_NOM R1 - Tap 7 1.5 1.9 2.3 kHz Minimum Crossover Frequency ƒC_MIN R1 - Tap 15 - 0. 9 1.4 kHz - 24 - dB/oct Filter Rolloff Rate STAGE A and B Open Loop Gain (B) AOL_B - 52 - dB Input Impedance (A) RIN 8 10.6 12 kΩ 7 9 11 dB VIN = -25 dBV, RVCEXT = 221k -20 -18 -16 dBV R5 - Tap 15 to Tap 0, RVCEXT = 221k 11.6 13.6 15.6 dB - 24 - kΩ OUTPUT STAGE Stage Gain Maximum Output Level MPO Range Output Resistance AC MPO ∆MPO VIN = -90 dBV ROUT All conditions and parameters remain as shown in the Test Circuit unless otherwise specified in the CONDITIONS column. GENNUM CORPORATION 2 522 - 17 - 05 VB 7 GA3204 C8 8n5 C14 7n4 C5 8n 3k3 45k5 R2 SLOW AVERAGE DETECTOR CONTROL R 2 42k8 85k6 1 RECT. X VB AGC_IN C2 81n 10k 12k 48k RH High Frequency Expander/Compressor 24 dB / Oct BAND SPLIT FILTER -A 3k9 185k GA3204 2µ2 R6 GP523 2M FAST AVERAGE DETECTOR REG. C1 81n 185k C6 83n 1M 1 R3 -B -C C4 RL 3 48k 11k 92n Low Frequency Expander/Compressor 4 6 13k1 50k C3 10 C7 80n 0µ14 R8 92k 5 R5 92k R1 R4 R7 64k 184k 460k 8 9 All resistors in ohms, all capacitors in farads unless otherwise stated. RVC 116k Fig. 1 Test Circuit VB 7 GA3204 C8 8n5 C14 7n4 C5 8n 1M 1 FAST AVERAGE DETECTOR REG. C1 81n R3 185k R6 185k GP523 C6 83n 2M SLOW AVERAGE DETECTOR 3k3 CONTROL 42k8 85k6 1 RECT. X 45k5 R2 Any Knowles or Microtronic microphone R 2 48k RH High Frequency C2 81n VB AGC_IN 10k -A 12k 24 dB / Oct BAND SPLIT FILTER Expander/Compressor -B VB -C C4 48k RL 3 92n 11k Low Frequency Expander / Compressor 4 6 13k1 C7 C3 10 2µ2 Any Knowles class D integrated receiver 0µ14 80n R5 92k R1 5 R8 92k 64k R4 184k R7 460k 9 All resistors in ohms, all capacitors in farads, unless otherwise stated. 8 RVC 100kΩ LOG Fig. 2 Typical Application Circuit GENNUM CORPORATION 3 522 - 17 - 05 VB = 1.3V 7 GA3204 C8 8n5 C14 7n4 C5 8n 1M REG. C1 81n 2µ2 3k3 45k5 R2 VIN = -80dBV 3k9 CONTROL R6 185k 85k6 42k8 GP523 C6 83n 2M SLOW AVERAGE DETECTOR 1 RECT. X VB RAGC_IN C2 81n 2 FAST AVERAGE DETECTOR 185k GA3204 1 R3 48k RH 10k -A 12k High Frequency Expander/Compressor 24 dB / Oct BAND SPLIT FILTER Pink 3 Noise Generator -B -C RL 4 6 50k C7 C3 80n 0µ14 R8 92k 5 C4 92n Low Frequency Expander/Compressor 13k1 10 to programmer 11k 48k R5 92k R1 R4 R7 64k 184k 460k 9 8 All resistors in ohms, all capacitors in farads, unless otherwise stated. Fig. 3 Characterization Circuit (Used to generate typical curves) Table of Defaults R1 - Tap 7 R2 - Tap 15 R3 - Tap 0 R4 - Tap 13 R5 - Tap 0 R6 - Tap 0 R7 - Tap 7 R8 - Tap 0 - + BATTERY MICROPHONE + 5 MS 6 OUT 4 GND1 7 VB 3 GND2 8 BOUT 2 IN 9 BIN 1 VREG 10 SDA 2µ2 +RECEIVER TO PROGRAMMER Fig. 4 Typical Assembly Diagram GENNUM CORPORATION 4 522 - 17 - 05 TYPICAL PERFORMANCE CURVES -20 ƒ = 4 kHz R1 - Tap 15 50 48 R6 - Tap 0 40 36 GAIN (dB) -40 -50 R6 - Tap 15 -60 32 28 GA3204 OUTPUT LEVEL (dBV) VIN = -80dBV 44 -30 24 20 -70 16 -80 12 8 4 -90 -100 0 -90 -80 -70 -60 -50 -40 -30 -20 0 1 2 3 6 7 8 9 10 11 12 13 14 15 Fig. 6 High Frequency Gain (Compression Ratio Adjustment) 50 48 ƒ = 1 kHz R1 - Tap 0 5 R6 RESISTOR TAPS (Tap 0 - 0kΩ, Tap 15 - 185kΩ) INPUT LEVEL (dBV) Fig. 5 I/O Transfer Function for Different Compression Ratios (High Frequency Channel) -20 4 R3 - Tap 0 VIN = -80dBV 44 -30 36 GAIN (dB) OUTPUT LEVEL (dBV) 40 -40 -50 R3 - Tap 15 -60 32 28 24 20 16 -70 12 -80 8 4 -90 -100 -90 -80 -70 -60 -50 -40 -30 0 -20 0 3 4 5 6 7 8 9 10 11 12 13 14 15 Fig. 8 Low Frequency Gain (Compression Ratio Adjustment) 50 50 R3 - Tap 0 VIN = -80dBV R1 - Tap 0 R6 - Tap 0 VIN = -80dBV 40 40 30 GAIN (dB) GAIN (dB) 2 R3 RESISTOR TAPS (Tap 0 - 0kΩ, Tap 15 - 185kΩ) INPUT LEVEL (dBV) Fig. 7 I/O Transfer Function for Different Compression Ratios (Low Frequency Channel) R1 - Tap 15 20 30 R1 - Tap 15 R1 - Tap 0 20 10 10 0 20 1 100 1k 10k 0 20k FREQUENCY (Hz) 100 1k 10k 20k FREQUENCY (Hz) Fig. 9 Frequency Response for Different Crossover Frequency Steps GENNUM CORPORATION 20 Fig. 10 Frequency Response for Different Crossover Frequency Steps 5 522 - 17 - 05 50 10k 40 GAIN (dB) R3 - Tap 0 R1 - Tap 13 30 20 10 0 R6 - Tap 0 R1 - Tap 13 100 20 1k 10k 1k 500 20k VIN = -80dBV GA3204 CROSSOVER FREQUENCY (Hz) VIN = -80dBV 0 1 2 3 FREQUENCY (Hz) 4 5 6 7 8 9 10 11 12 13 14 15 R1 RESISTOR TAPS (Tap 0 - 0kΩ, Tap 15 - 64kΩ) Fig. 11 Crossover Frequency Representation Fig. 12 Crossover Frequency Adjustment ƒ=1kHz OUTPUT THRESHOLD LEVEL (dBV) -20 R6-Tap 0 R3-Tap 0 OUTPUT LEVEL (dBV) -30 R2-Tap 15 -40 -50 R2-Tap 0 -60 -70 -100 -90 -80 -70 -60 -50 -46 -50 -54 -58 -62 -66 -70 -74 -78 -82 -86 -90 -40 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 INPUT LEVEL (dBV) R2 RESISTOR TAPS (Tap 0 - 0kΩ, Tap 15 - 45.5kΩ) Fig. 13 I/O Transfer Function for Different Thresholds Fig. 14 Threshold Adjustment -10 OUTPUT LEVEL (dBV) -20 -30 R5 - Tap 15 -40 -50 -50 -40 -30 -20 -16 -18 -20 -22 -24 -26 -28 -30 -32 -34 -36 -38 -40 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R5 RESISTOR TAPS (Tap 0 - 7.3kΩ, Tap 15 - 92kΩ) INPUT LEVEL (dBV) Fig. 15 I/O Transfer Function for Different MPO Steps GENNUM CORPORATION 15 -10 -12 -14 R5 - Tap 0 OUTPUT LEVEL (dBV) -40 -42 Fig. 16 MPO Adjustment 6 522 - 17 - 05 10 10 ƒ = 1 kHz R4 - Tap 13 R7 - Tap 7 THD & NOISE (%) 1 0.1 -80 0.1 1.0k 0.1k 1 10k -70 -60 -50 -40 -30 FREQUENCY (Hz) INPUT LEVEL (dBV) Fig. 17 THD and Noise vs Frequency Fig 18 THD and Noise vs Input Level -20 10 10 VIN = -40dBV ∆ = 200Hz R4 - Tap 13 R7 - Tap 7 ƒ = 4kHz ∆ = 200Hz R4 - Tap 13 R7 - Tap 7 IMD (%) 1 IMD (%) GA3204 THD & NOISE (%) VIN = -40dBV R4 - Tap 13 R7 - Tap 7 1 0.1 0.1 3k 10k 0.01 -80 100k -70 -60 -50 -40 -30 -20 FREQUENCY (Hz) INPUT LEVEL (dBV) Fig. 19 Intermodulation Distortion (CCIF) vs Frequency Fig. 20 Intermodulation Distortion (CCIF) vs Input Level 60 R = 200kΩ 50 R = 100kΩ GAIN (dB) R = 50kΩ 40 R = 25kΩ 30 R = 10kΩ 20 10 20 100 1k 10k 20k FREQUENCY (Hz) Fig. 21 Frequency Response for Different Feedback Resistor Values GENNUM CORPORATION 7 522 - 17 - 05 PACKAGE DIMENSIONS GA3204 GA3204 XXXXXX 0.115 (2.92) 0.200 (5.08) 0.065 MAX (1.65) 1 VREG 2 IN 3 GND2 4 GND1 5 MS 10 SDA 9 BIN 8 BOUT 7 VB 6 OUT 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 sizes 0.0285 x 0.0400 (0.724 x 1.016). XXXXXX - work order number. This hybrid is designed for either point-to-point manual soldering or it can be reflowed according to Gennum’s recommended reflow process (Information Note 521-45). REVISION NOTES: Compression Gain Range Limits lowered by 1dB. GENNUM CORPORATION For latest product information, visit www.gennum.com 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 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 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 1999 Gennum Corporation. All rights reserved. 8 Printed in Canada. 522 - 17 - 05