GA3201 Programmable DynamEQ®II DATA SHEET DESCRIPTION FEATURES The GA3201 programmable hybrid is composed of a DynamEQ®II Wide Dynamic Range Compression signal processor and the GP522 controller memory chip. The hybrid incorporates 24dB/oct filtering. • six programmable parameters • 24dB/oct state variable filter 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. • twin average detectors • handles high input levels • drives class D integrated receivers The GA3201 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. thinSTAX™ PACKAGING Hybrid typical dimensions: 0.200 x 0.115 x 0.066in. (5.08 x 2.92 x 1.68mm) The output stage is designed as a preamplifier for the class D integrated receiver. VB 5 GA3201 R3 200k GP522 R6 200k C8 8n5 C6 83n CSAD VBAT C5 7n4 CFAD VREG 1 SLOW AVERAGE DETECTOR REGULATOR C1 VREG 81n RTH 1:1 FAST AVERAGE DETECTOR CONTROL 85k6 RLO 42k8 1 RECTIFIER X 3k3 49k5 RHI 4:1 2:1 1M 2M VB R AGC_IN R2 48k RH C2 IN 2 73n IN -A 10k 12k 24dB/oct BAND SPLIT FILTER -B 92n RL GND 3 48k 11k MPO 13k1 AOUT PGI REC BIN FOUT RFC BOUT R5 100k C3 C7 73n 0µ14 R1 4 OUT -C Low Frequency Expander / Compressor GND SDA 8 OUT C4 High Frequency Expander / Compressor R4 R7 200k 500k 69k5 All resistors on ohms, all capacitors in farads, unless otherwise stated. 7 6 BIN BOUT BLOCK DIAGRAM Revision Date: January 2002 Document No. 521 - 92 - 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] GA3201 • DynamEQ II flexibility ® PAD CONNECTION ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage IN GND GND 1.4 VDC Power Dissipation GA3201 VREG VALUE 1 25 mW Operating Temperature Range -10° C to 40° C Storage Temperature Range -20° C to 70° C 2 3 8 7 6 SDA BIN BOUT 3 5 4 CAUTION ELECTROSTATIC SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION VBAT OUT 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 - Tap15; (TH) R2 - Tap 0; (FC) R1 - Tap 8; (HP) R6 - Tap 0; (LP) R3 - Tap 0; (VC) R4 - Tap 0, R7 - Tap 0. PARAMETER Hybrid Current Minimum Voltage SYMBOL CONDITIONS IAMP Vb MIN TYP MAX UNITS - 395 580 µA 1.1 - - V Total Harmonic Distortion THD VIN = -40dBV at 1kHz - 0.6 1.0 % THD with Maximum Allowable Input THDM VIN = -23dBV, Rvc = 47kΩ - 2.0 10 % Input Referred Noise IRN Aweighted filter - 3.0 - µVRMS 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 Gain(-90dBVIN) -Gain(-30dBVIN) 35.5 38.5 41.5 dB A60 VIN =-60dBV 26 29 32 dB CMP1 :1 VIN=3kHz, -60dBV to -40dBV, 0.9 1.0 1.1 Ratio 3.6 4.0 4.3 Ratio Compression Gain Range System Gain in Compression Min. Compression Ratio ∆A R3 - Tap 15; R6 - Tap 15 Max. Comp. Ratio CMP4 :1 VIN =3kHz, -60dBV to -40dBV, R3 - Tap 0; R6 - Tap 0 Fast Average Detector Time Constant τFAST - 7.4 - ms Slow Average Detector Time Constant τSLOW - 166 - ms FILTER Maximum Crossover Frequency ƒc_max R1 - Tap 15 3.0 3.9 - kHz Nominal Crossover Frequency ƒc_nom R1 - Tap 8 1.5 1.9 2.3 kHz Minimum Crossover Frequency ƒc_min R1 - Tap 0 - 0.9 1.4 kHz - 24 - dB/oct Filter Rolloff Rate 521 - 92 - 04 2 ELECTRICAL CHARACTERISTICS continued Conditions: Supply Voltage VB = 1.3V, Frequency = 1kHz, Temperature = 25°C The programmable parameters are adjusted to the following set values unless otherwise specified. (MPO) R5 - Tap 15; (TH) R2 - Tap 0; (FC) R1 - Tap 8; (HP) R6 - Tap 0; (LP) R3 - Tap 0; (VC) R4 - Tap 0, R7 - Tap 0. PARAMETER SYMBOL CONDITIONS TYP MAX - - - STAGE A and B UNITS Open Loop Gain (B) AOL_B - 52 - dB Input Impedance (A) RIN 8.0 10.6 12 kΩ VIN=-30dBV 7.0 9.0 11 dB GA3201 MIN OUTPUT STAGE Stage Gain AC Max Output Level MPO VIN=-25dBV, RVCEXT=221k -20 -18 -16 dBV MPO Range ∆MPO R5 - Tap 15 to Tap 0, RVCEXT=221k 11.6 13.6 15.6 dB - 24 - kΩ Output Resistance ROUT All conditions and parameters remain as shown in the Test Circuit unless otherwise specified in the CONDITIONS column. VB 5 GA3201 R3 200k GP522 R6 200k C8 8n5 C6 83n CSAD VBAT C5 7n4 CFAD 1 SLOW AVERAGE DETECTOR REGULATOR C1 VREG 81n 2µ2 RTH 1:1 FAST AVERAGE DETECTOR CONTROL 85k6 R R2 RLO 42k8 1 RECTIFIER X 3k3 49k5 RHI 4:1 2:1 1M 2M VB AGC_IN 48k RH C2 2 3k9 73n IN -A 10k 12k 24 dB / Oct BAND SPLIT FILTER -B REC 11k MPO BOUT BIN FOUT RFC R5 100k C7 C3 73n 50k 48k 13k1 AOUT 4 92n Low Frequency Expander / Compressor GND PGI -C RL 3 SDA 8 OUT C4 High Frequency Expander / Compressor 0µ14 R1 R4 R7 200k 500k 69k5 6 7 All resistors in ohms, all capacitors in farads, unless otherwise stated. Fig. 1 Test Circuit RVC 116k 3 521 - 92 - 04 VB 5 GA3201 R3 200k GP522 R6 200k C8 8n5 C6 83n CSAD VBAT C5 7n4 CFAD 1:1 GA3201 1 SLOW AVERAGE DETECTOR REGULATOR C1 81n VREG RTH FAST AVERAGE DETECTOR CONTROL 85k6 49k5 RLO 42k8 1 RECTIFIER X 3k3 Any Knowles or Microtronic microphone RHI 4:1 2:1 1M 2M AGC_IN R2 48k RH C2 2 10k 12k OUT High Frequency Expander / Compressor 24 dB / Oct BAND SPLIT FILTER -A IN 73n -B 3 2µ2 11k MPO 13k1 C3 C7 73n 0µ14 R1 Any Knowles class D integrated receiver BOUT BIN FOUT RFC REC PGI OUT 92n RL Low Frequency Expander / Compressor AOUT C4 4 -C 48k GND 8 VB VB R R5 100k R4 R7 200k 500k 69k5 7 6 All resistors in ohms, all cpacitors in farads, unless otherwise shown. RVC Fig. 2 Typical Application Circuit 100k LOG VB = 1.3V 5 GA3201 R3 200k GP522 R6 200k C8 8n5 C6 83n CSAD VBAT C5 7n4 CFAD SLOW AVERAGE DETECTOR REGULATOR 1 C1 81n 2µ2 VREG RTH 1:1 FAST AVERAGE DETECTOR CONTROL 85k6 R R2 VIN = -80dBV RHI RLO 42k8 1 RECTIFIER X 3k3 49k5 4:1 2:1 1M 2M VB AGC_IN 48k RH C2 2 73n IN -A 10k 12k PINK NOISE GENERATOR 24 dB / Oct BAND SPLIT FILTER -B PGI TO PROGRAMMER REC MPO BIN FOUT RFC BOUT R5 100k C3 C7 73n 0µ14 R1 R4 R7 200k 500k 69k5 7 All resistors in ohms, all cpacitors in farads, unless otherwise shown. TABLE OF DEFAULTS R1 - Tap 8 R2 - Tap 0 R3 - Tap 0 R4 - Tap 2 521 - 92 - 04 Fig. 3 Characterization Circuit (Used to generate typical curves) R5 - Tap 15 R6 - Tap 0 R7 - Tap 23 4 50k 11k 13k1 AOUT 92n 48k Low Frequency Expander / Compressor GND 4 -C RL 3 8 OUT C4 High Frequency Expander / Compressor 6 BATTERY - + 2µ2 3 GND MICROPHONE 4 OUT +RECEIVER GA3201 3 GND 5 VBAT 6 BOUT 2 IN + 1 VREG 7 BIN 8 SDA TO PROGRAMMER Fig. 4 Typical Assembly Diagram TYPICAL PERFORMANCE CURVES -20 50 48 ƒ = 4 kHz R1 - Tap 0 R6 - Tap 0 40 36 -40 GAIN (dB) OUTPUT LEVEL (dBV) VIN = -80dBV 44 -30 -50 R6 - Tap 15 -60 32 28 24 20 16 -70 12 8 -80 4 -90 -100 -20 -90 -80 -70 -60 -50 -40 -30 0 0 -20 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R6 RESISTOR TAPS (Tap 0 - 0kΩ, Tap 15 - 200kΩ) Fig. 5 I/O Transfer Function for Different Compression Ratios (High Frequency Channel) Fig. 6 High Frequency Gain (Compression Ratio Adjustment) ƒ = 1kHz R1 - Tap 15 50 48 R3 - Tap 0 VIN = -80dBV 44 -30 40 -40 36 GAIN (dB) OUTPUT LEVEL (dBV) 1 INPUT LEVEL (dBV) -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 1 2 3 4 5 6 7 8 9 10 11 12 INPUT LEVEL (dBV) R3 RESISTOR TAPS (Tap 0 - 0kΩ, Tap 15 - 200kΩ) Fig. 7 I/O Transfer Function for Different Compression Ratios (Low Frequency Channel) Fig. 8 Low Frequency Gain (Compression Ratio Adjustment) 5 13 14 15 521 - 92 - 04 50 50 GA3201 R6 - Tap 0 VIN = -80dBV R1 - Tap 15 40 40 30 30 GAIN (dB) GAIN (dB) R3 - Tap 0 VIN = -80dBV R1 - Tap 0 20 20 0 20 100 10k 1k 20k 20 100 Fig. 9 10k VIN = -80dBV CROSSOVER FREQUENCY (Hz) VIN = -80dBV 40 GAIN (dB) R3 - Tap 0 R1 - Tap 2 30 20 10 R6 - Tap 0 R1 - Tap 2 0 1k 500 20 100 1k 10k 20k 0 1 2 3 Fig. 11 OUTPUT THRESHOLD LEVEL (dBV) R6-Tap 0 R3-Tap 0 R2-Tap 0 -40 -50 R2-Tap 15 -60 -90 -80 -70 -60 -50 6 7 8 9 10 11 12 13 14 15 -40 -42 -46 -50 -54 -58 -62 -66 -70 -74 -78 -82 -86 -90 0 -40 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R2 RESISTOR TAPS (Tap 0 - 49.5kΩ, Tap 15 - 0kΩ) INPUT LEVEL (dBV) Fig. 13 I/O Transfer Function for Different Thresholds 521 - 92 - 04 5 Fig. 12 Crossover Frequency Adjustment Crossover Frquency Representation ƒ=1kHz -70 -100 4 R1 RESISTOR TAPS (Tap 0 - 69.5kΩ, Tap 15 - 0kΩ) FREQUENCY (Hz) -30 10k 20k Fig. 10 Frequency Response for Different Crossover Frequency Steps Frequency Response for Different Crossover Frquency Steps 50 -20 1k FREQUENCY (Hz) FREQUENCY (Hz) OUTPUT LEVEL (dBV) R1 - Tap 15 10 10 0 R1 - Tap 0 Fig. 14 Threshold Adjustment 6 15 -10 -10 -12 -14 -16 OUTPUT LEVEL (dBV) -30 R5 - Tap 0 -40 -50 -50 -40 -30 -18 -20 -22 -24 -26 -28 -30 -32 -34 -36 -38 -40 0 -20 GA3201 OUTPUT LEVEL (dBV) R5 - Tap 15 -20 1 2 3 INPUT LEVEL (dBV) 6 7 8 9 10 11 12 13 14 15 Fig. 16 MPO Adjustment 10 10 ƒ = 1kHz R4 - Tap 7 R7 - Tap 23 THD & NOISE (%) VIN = -40dBV R4 - Tap 7 R7 - Tap 23 THD & NOISE (%) 5 R5 RESISTOR TAPS (Tap 0 - 100kΩ, Tap 15 - 0kΩ) Fig. 15 I/O Transfer Function for Different MPO Steps 1 0.1 1.0k 0.1k 1 0.1 10k -80 -70 -60 -50 -40 FREQUENCY (Hz) INPUT LEVEL (dBV) Fig. 17 THD and Noise vs Frequency Fig. 18 THD and Noise vs Input 10 -30 -20 10 VIN = -40dBV ∆ = 200Hz R4 - Tap 7 R7 - Tap 23 ƒ = 4kHz ∆ = 200Hz R4 - Tap 7 R7 - Tap 23 IMD (%) 1 IMD (%) 4 1 0.1 0.1 3k 10k 0.01 -80 100k FREQUENCY (Hz) -70 -60 -50 -40 -30 -20 INPUT LEVEL (dBV) Fig. 20 Intermodulation Distortion (CCIF) vs Input Level Fig. 19 Intermodulation Distortion (CCIF) vs Frequency 7 521 - 92 - 04 60 PACKAGE DIMENSIONS R4 = 200kΩ 50 GA3201 GAIN (dB) R4 = 100kΩ R4 = 49kΩ 40 GA3201 xxxxxx R4 = 22kΩ 30 R4 = 10kΩ 20 10 20 100 1k 10k 20k FREQUENCY (Hz) Fig. 21 Frequency Response for Different R4 Values 0.071 MAX (1.80) 1 2 VREG IN 3 3 GND GND 0.115 (2.92) 8 SDA 7 BIN 6 5 4 BOUT VBAT OUT 0.200 (5.08) 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 0.0285 x 0.0400 (0.724 x 1.016). XXXXXX - work order number. This hybrid is designed for either point-to-point manual soldering or can be reflowed according to Gennum’s recommended reflow process (Information Note 521-45). 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 Compression Gain Range limits lowered by 1dB. 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. 521 - 92 - 04 8 Printed in Canada.