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Programmable DynamEQ(R)II - GM3038
DATA SHEET
FEATURES * DynamEQ(R) II flexibility
DESCRIPTION
GM3038
* five programmable parameters * 24 dB/oct state variable filter * twin average detectors * handles high input levels * drives class D integrated receivers
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 GM3038 programmable hybrid is composed of a DynamEQ(R) II Wide Dynamic Range Compression signal processor and the ER102 controller memory chip. The hybrid incorporates 24 dB/oct filtering. 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. 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. 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 VDD
C6 022
C5 10n R5S R5 R5R R6R R6 4:1 5 RHI 4 RLO 3 600k R6S ER102
GM3038
VB 18
CSAD 7 1M
CFAD 2 1M
1:1A 1 53.5k
1:1B 6
1M
85.6k
VREG 7
VREG 8 C1 01 RTH 19 R3R
REGULATOR
SLOW AVERAGE DETECTOR
FAST AVERAGE DETECTOR
CONTROL
1
RECTIFIER
X
50k R3 150k 11 IN R
AGC_IN
VB 48k OUT -B -C 48k 8k4 15 MPO 16 BIN 17 BOUT R2 150k C7 022 4 BIN 3 BOUT R2R 20 C4 2 01 OUT
RH C2 IN 6 02 10k -A
24 dB / Oct BAND SPLIT FILTER
High Frequency Expander / Compressor
RL GND 8 VSS GND 9 10 AOUT SDA 5 SDA C3 01
Patent pending All resistors in ohms, all capacitors in farads unless otherwise stated.
12k 12 REC 13 RFC
Low Frequency Expander / Compressor
14k 14 R4 300k R4R FOUT
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: hipinfo@gennum.com
ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range VALUE / UNITS 2VDC 25 mW -10 C to 40 C -20 C to 70 C 16V
PAD CONNECTION VB OUT BOUT BIN GND VREG IN SDA
GM3038
Voltage on SDA pad 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 = 25C 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 Hybrid Current Minimum Voltage Total Harmonic Distortion THD with Maximum Allowable Input Input Referred Noise Total System Gain Regulator Voltage AGC Lower Threshold Upper Threshold Compression Gain Range System Gain in Compression Min. Compression Ratio
SYMBOL IAMP Vb THD THDM IRN AV VREG
CONDITIONS
MIN 1.1
TYP 370 0.6 2 3.0 49 930
MAX 530 1.25 10 52 1000
UNITS A V % % VRMS dB mV
VIN = -40dBV at 1kHz VIN = -23dBV, Rvc = 47k A Weighted Filter VIN = -90dBV ILOAD = 30A
46 890
THLO THHI A A60 CMP1 :1 Gain(-90dBVIN) -Gain(-30dBVIN) VIN =-60dBV VIN=3kHz, -60dBV to -40dBV, R5 - set 31; R6 - set 15
-91 -36 37.5 26
-87 -32 40.5 29
-83 -28 43.5 32
dBV dBV dB dB
0.9
1.0
1.1
Ratio
Max. Comp. Ratio
CMP4 :1
VIN =3kHz, -60dBV to -40dBV, R5 - set 0; R6 - set 0 3.6 4.0 10 220 4.3 Ratio ms ms
Fast Detector Time Constant Slow Detector Time Constant FILTER Maximum Crossover Frequency Nominal Crossover Frequency Minimum Crossover Frequency Filter Rolloff Rate
FAST SLOW
c_0 c_22 c_220 R4 - set 0 R4 - set 7 R4 - set 13
3.0 1.38 -
3.9 1.8 0.9 24
2.18 1.4 -
kHz kHz kHz dB/oct
521 - 62 - 04
2
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 = 25C 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
GM3038
PARAMETER STAGE A and B Open Loop Gain (B) Input Impedance (A) OUTPUT STAGE Stage Gain Max Output Level MPO Range Output Resistance
SYMBOL
CONDITIONS
MIN -
TYP 52 11
MAX 13
UNITS
AOL_B RIN
9
dB k
AC MPO MPO ROUT
VIN=-30dBV RVC=220k,VIN=-25dBV R2 - set 0 to set 11
7 -14.5 13 -
9 -12.5 15 24
11 -10.5 17 -
dB dBV dB k
All conditions and parameters remain as shown in the Test Circuit unless otherwise specified in the CONDITIONS column.
VB VB 1 VDD C6 022 C5 10n R5S R5 VB 18 CSAD 7 1M CFAD 2 1M 53.5k 7
22
GM3038 R5R R6R R6 4:1 5 RHI 4 RLO 3 600k R6S ER102
1:1A 1
1:1B 6
1M
85.6k
VREG 8 C1 01 RTH 19 R3R R3 C2 150k 11 IN
REGULATOR
SLOW AVERAGE DETECTOR
FAST AVERAGE DETECTOR
CONTROL
RECTIFIER
1 X VB 48k OUT -B -C 8k4 48k 15 MPO 16 BIN 17 BOUT R2 150k C7 022 4 BIN RVC 100k 3 BOUT R2R 20 C4 2 01 50k
50k R
AGC_IN
RH
3.9k
10k -A
6 02
24 dB / Oct BAND SPLIT FILTER
High Frequency Expander / Compressor
RL 8 VSS GND 9 10 AOUT SDA 5 SDA C3 01 R4R 12k 12 REC 13 RFC
Low Frequency Expander / Compressor
14k 14 R4 300k FOUT
Table of Defaults R2 - set 0 R3 - set 15 R4 - set 7 R5 - set 0 R6 - set 0
All resistors in ohms, all capacitors in farads unless otherwise stated
Fig. 1 Production Test Circuit
3
521 - 62 - 04
VB VB 1 VDD C6 022 C5 10n R5S R5 VB 18 CSAD 7 1M CFAD 2 1M 53.5k VREG 7 C1 01 RTH 19 R3R
Any Knowles or Microtronic microphone
GM3038 R5R R6R R6 4:1 5 RHI 4 RLO 3 600k R6S ER102
1:1A 1
1:1B 6
1M
GM3038
85.6k
VREG 8
REGULATOR
SLOW AVERAGE DETECTOR
FAST AVERAGE DETECTOR
CONTROL
RECTIFIER
1 X VB 48k OUT -B -C 8k4 48k 15 MPO 16 BIN 17 BOUT R2 150k C7 022 4 BIN 3 RVC BOUT R2R 20 C4 2 01 22
Any Knowles class D integrated receiver
VB
50k R3 R
AGC_IN
RH C2 150k 11 IN 10k -A
24 dB / Oct BAND SPLIT FILTER
High Frequency Expander / Compressor
IN 6
OUT
02 GND 8
RL VSS GND 9 10 AOUT 12k 12 REC 13 RFC
Low Frequency Expander / Compressor
14k R4 300k 14 FOUT
SDA 5
SDA C3 01 R4R
All resistors in ohms, all capacitors in farads, unless otherwise stated
100k LOG
Fig. 2 Typical Application Circuit
VB = 1.3V VB 1 VDD C6 022 C5 10n R5S R5 VB 18 CSAD 7 1M CFAD 2 1M 53.5k 7
22
GM3038 R5R R6R R6 4:1 5 RHI 4 RLO 3 600k R6S ER102
1:1A 1
1:1B 6
1M
85.6k
VREG 8 C1 01 RTH 19 R3R R3
REGULATOR
SLOW AVERAGE DETECTOR
FAST AVERAGE DETECTOR
CONTROL
RECTIFIER
1 X
50k R
AGC_IN
Table of Defaults R2 - set 0 R3 - set 15 R4 - set 15 R5 - set 31 R6 - set 15
RH
High Frequency Expander / Compressor
VB 48k OUT C4 2 01 50k
VIN = -80dBV
Pink Noise Generator
C2 6 02
150k 11 IN
10k -A
24 dB / Oct BAND SPLIT FILTER
-B
-C 8k4 48k
20
RL 8 VSS GND 9 10 AOUT 12k 12 REC 13 RFC
Low Frequency Expander / Compressor
14k 14 R4 300k FOUT 16 BIN 17 BOUT
15 MPO
to programmer
5
SDA C3 01 R4R
R2 150k C7 022 4 BIN RVC 100k 3 BOUT
R2R
All resistors in ohms, all capacitors in farads, unless otherwise stated
Fig. 3 Characterization Circuit (Used to generate typical curves)
521 - 62 - 04
4
RECEIVER
22
MICROPHONE
VOLUME CONTROL
TYPICAL PERFORMANCE CURVES
-20 -30
= 1kHz R4 - set 15
R5 - set 0
OUTPUT LEVEL (dBV)
-40 -50 R5 - set 31 -60 -70 -80 -90 -100 Used Settings 0 9 12 14 -90 - 80 -70 -60 -50 16 17 18 19 20 21 -40 -30 23 24 26 28 30 31 -20
GAIN (dB)
INPUT LEVEL (dBV)
Fig. 5 I/O Transfer Function for Different Compression Ratios (High Frequency Channel)
-20 -30
= 1kHz R4 - set 0
R6 - set 0
OUTPUT LEVEL (dBV)
-40 -50 -60 R6 - set 15 -70 -80 -90 -100
GAIN (dB)
-90
-80
-70
-60
-50
-40
INPUT LEVEL (dBV)
Fig. 7 I/O Transfer Function for Different Compression Ratios (Low Frequency Channel)
+
Fig. 4 Typical Assembly Diagram
-
+
BATTERY
48 44 40 36 32 28 24 20 16 12 8 4 0 0 2 4 6 8 48 44 40 36 32 28 24 20 16 12 8 4 0 -30 -20 0 1 2 3 4 5 6 7 8 9 VIN = -80dBV
+
GM3038
TO PROGRAMMER
VIN = -80dBV
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. 6 High Frequency Gain (Compression Ratio Adjustment)
10 11 12 13
14
15
R6 RESISTOR SET ON ER102 DIE
(set 0 - short, set 15- open)
Fig. 8 Low Frequency Gain (Compression Ratio Adjustment)
5
521 - 62 - 04
50 R6 - SET 0 VIN = -80 dBV 40 R4 - SET 0
50 R5 - SET 0 VIN = -80 dBV 40 R4 - SET 0
GAIN (dB)
30
GAIN (dB)
30 R4 - SET 15 20
GM3038
20
R4 - SET 15
10
10
0 20 100 1k 10k 20k
0 20 100 1k 10k 20k
FREQUENCY (kHz)
FREQUENCY (kHz)
Fig. 9 Frequency Response for Different Crossover Frequency Steps
Fig. 10 Frequency Response for Different Crossover Frequency Steps
50
10k
CROSSOVER FREQUENCY (kHz)
VIN = -80 dBV 40
VIN = -80dBV
GAIN (dB)
30
R6 - SET 0 R4 - set 13
20 R5 - SET 0 R4 - SET 13 10
1k
0 20 100 1k 10k 20k
500
0
1
2
3
4
5
6
7
8
9
10
11 12
13 14 15
FREQUENCY (kHz)
R4 RESISTOR SET ON ER102 DIE
(set 0 - short, set 15 - open)
Fig. 11 Crossover Frequency Representation for Step 13
Fig. 12 Crossover Frequency Adjustment
-30
OUTPUT LEVEL (dBV)
-40
R3 - SET 15
R3 - SET 0 -50
-60
-70 -100
OUTPUT THRESHOLD LEVEL (dBV)
R5 - SET 0 R6 - SET 0
= 1kHz
-60 -62 -64 -66 -68 -70 -72 -74 -76 -78 -80 -82 -84 -86 -88 -90 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
-90
-80
-70
-60
INPUT LEVEL (dBV)
R3 RESISTOR SET ON ER102 DIE
(set 0 - short, set 15 - open)
Fig. 13 I/O Transfer Function for Different Threshold Steps
Fig. 14 Threshold Adjustment
521 - 62 - 04
6
-10
R2 - SET 0
-10 -12 VIN -22 dBV
OUTPUT LEVEL (dBV)
-20
OUTPUT LEVEL (dBV)
-14 -16 -18 -20 -22 -24 -26 -28
-30 R2 - SET 11 -40
GM3038
-50 -50 -40 -30 -20
-30 0 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 k)
Fig. 15 I/O Transfer Function for Different MPO Steps
Fig. 16 MPO Adjustment
10 VIN = -40 dBV
10 = 1 kHz
THD & NOISE (%)
1
THD & NOISE (%)
1.0
0.1 0.1k 1.0k 10k
0.1 -80 -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 VIN = -40 dBV = 200 Hz
10 = 4 kHz = 200 Hz 1.0
IMD (%)
1.0
IMD (%)
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 RVC=100k RVC=47k
0.250 (6.35)
GAIN (dB)
40 RVC=22k 30 RVC=10k
GM3038
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.
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
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.
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. (c) Copyright April 1996 Gennum Corporation. All rights reserved.
521 - 62 - 04
8
GM3038
Printed in Canada.
XXXXXX

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