Gennum Corporation GA3204 Datasheet
V
B
OUT
V
REG
IN
GND1
SDA
B
OUT
B
IN
C2
GA3204
C1
80n
81n
92n
81n
45k5
R3
R4
R6
R5
CONTROL
10k
RECT.
V
B
3k3
REG.
48k
48k
11k
13k1
12k
1
X
- B
- A
- C
24 dB / Oct
BAND SPLIT
FILTER
High Frequency
Expander/Compressor
Low Frequency
Expander/Compressor
R
AGC_IN
R
H
R
L
R8
R7
C4
C3
92k
92k
185k
185k
460k
184k
8n5
C8
R2
GP523
7n4
C5
C6
8n
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
1M
2M
83n
C14
MS
GND2
R1
64k
10
5
2
3
4
1
7
6
89
42k8
85k6
C7
0µ14
All resistors in ohms, all capacitors in farads, unless otherwise stated.
FEATURES
• DynamEQ
®
II flexibility
• six programmable parameters
• four memories
• 24dB/oct state variable filter
• twin average detectors
• handles high input levels
• 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)
PRELIMINARY DATA SHEET
Multimemory Programmable
DynamEQ®II - GA3204
DESCRIPTION
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.
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 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.
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”.
BLOCK DIAGRAM
Document No. 522 - 17 - 03
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
Revision Date: June 2000
GA3204
2
522 - 17 - 03
GA3204
GENNUM CORPORATION
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
PARAMETER VALUE
Supply Voltage 2VDC
Power Dissipation 25 mW
Operating Temperature Range -10° C to 40° C
Storage Temperature Range -20° C to 70° C
PAD CONNECTIONS
All conditions and parameters remain as shown in the Test Circuit unless otherwise specified in the CONDITIONS column.
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.
CAUTION
ELECTROSTATIC
SENSITIVE DEVICES
DO NOT OPEN PACKAGES OR HANDLE
EXCEPT AT A STATIC-FREE WORKSTATION
1 2 3 4 5
V
REG
IN GND2 GND1 MS
10 9 8 7 6
SDA B
IN
B
OUT
V
B
OUT
RETEMARAPLOBMYSSNOITIDNOCNIMPYTXAMSTINU
tnerruCdirbyH I
PMA
-593085Aµ
egatloVmuminiMbV1.1--V
noitrotsiDcinomraHlatoTDHTV
NI
zHk1taVBd04-=-6.01%
tupnIelbawollAmumixaMhtiwDHTDHT
M
V
NI
R,VBd32-=
CV
k74= Ω -201%
esioNderrefeRtupnINRIretlifdethgiewA-3-Vµ
SMR
niaGmetsySlatoTA
V
V
NI
VBd09-=447405Bd
egatloVrotalugeRV
GER
I
DAOL
Aµ03=0980390001Vm
CGA
dlohserhTrewoLHT
OL
5.88-5.48-5.08-VBd
dlohserhTreppUHT
IH
63-23-82-VBd
egnaRniaGnoisserpmoC
∆A
VBd09-(niaG
NI
VBd03-(niaG-)
NI
)5.635.935.24Bd
noisserpmoCniniaGmetsySA
06
V
NI
VBd06-=629223Bd
oitaRnoisserpmoCmuminiMPMC
1:1
V
NI
;VBd04-otVBd06-,zHk3=
51paT-6R;51paT-3R
9.00.11.1oitaR
oitaRnoisserpmoCmumixaMPMC
1:4
V
NI
;VBd04-otVBd06-,zHk3=
0paT-6R;0paT-3R
6.30.43.4oitaR
emiTrotceteDegarevAtsaF
tnatsnoC
τ
TSAF
-8- sm
emiTrotceteDegarevAwolS
tnatsnoC
τ
WOLS
-081-sm
RETLIF
ycneuqerFrevossorCmumixaMƒ
_CXAM
-1R0paT39.3- zHk
ycneuqerFrevossorClanimoNƒ
_CMON
R1 7paT-5.19.13.2zHk
ycneuqerFrevossorCmuminiMƒ
_CNIM
-1R51paT-9.04.1zHk
etaRffolloRretliF -42- tco/Bd
BdnaAEGATS
)B(niaGpooLnepOA
LOB_
-25- Bd
)A(ecnadepmItupnIR
NI
86.0121kΩ
EGATSTUPTUO
niaGegatSA
C
V
NI
VBd09-=7911Bd
leveLtuptuOmumixaMOPMV
NI
R,VBd52-=
TXECV
k122=02-81-61-VBd
egnaROPM
∆ OPM
R5 R,0paTot51paT-
TXECV
k122=6.116.316.51Bd
ecnatsiseRtuptuOR
TUO
-42-kΩ
3
522 - 17 - 03
GA3204
GENNUM CORPORATION
Fig. 1 Test Circuit
50k
2µ2
3k9
R
VC
V
B
116k
C2
GA3204
C1
80n
81n
92n
81n
R3
R4
R6
R5
CONTROL
10k
RECT.
V
B
3k3
REG.
48k
48k
11k
13k1
12k
1
X
- B
- A
- C
24 dB / Oct
BAND SPLIT
FILTER
High Frequency
Expander/Compressor
Low Frequency
Expander/Compressor
R
AGC_IN
R
H
R
L
R8
R7
C4
C3
8n5
C8
R2
GP523
7n4
C5
C6
8n
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
1M
2M
83n
C14
R1
10
5
2
3
4
1
7
6
8
9
42k885k6
C7
0µ14
45k5
92k
92k
185k
185k
460k
184k
64k
All resistors in ohms, all capacitors in farads unless otherwise stated.
Fig. 2 Typical Application Circuit
V
B
R
VC
100kΩ LOG
V
B
Any
Knowles or
Microtronic
microphone
Any
Knowles
class D
integrated
receiver
2µ2
C2
GA3204
C1
80n
81n
92n
81n
R3
R4
R6
R5
CONTROL
10k
RECT.
V
B
3k3
REG.
48k
48k
11k
13k1
12k
1
X
- B
- A
- C
24 dB / Oct
BAND SPLIT
FILTER
High Frequency
Expander/Compressor
Low Frequency
Expander / Compressor
R
AGC_IN
R
H
R
L
R8
R7
C4
C3
8n5
C8
R2
GP523
7n4
C5
C6
8n
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
1M
2M
83n
C14
R1
10
5
2
3
4
1
7
6
89
42k8
85k6
C7
0µ14
45k5
92k
92k
185k
185k
460k
184k
64k
All resistors in ohms, all capacitors in farads, unless otherwise stated.
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