4301M30-I THAT Corporation, 4301M30-I Datasheet

Op Amps Analog Dynamics Processor SO-30

4301M30-I

Manufacturer Part Number
4301M30-I
Description
Op Amps Analog Dynamics Processor SO-30
Manufacturer
THAT Corporation
Datasheet

Specifications of 4301M30-I

Common Mode Rejection Ratio (min)
100 dB
Input Voltage Range (max)
+/- 13.5 V
Input Offset Voltage
4 mV
Input Bias Current (max)
400 pA
Output Current (typ)
100 uA
Operating Supply Voltage
+/- 12 V
Supply Current
12 mA
Maximum Power Dissipation
700 mW
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Supply Voltage (max)
15 V
Supply Voltage (min)
7 V
Package / Case
SO-30
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
T H A T
19
20
1
·
·
·
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“THAT Analog Engine,” combines in a single IC
all the active circuitry needed to construct a
wide range of dynamics processors. The 4301
includes
tially-controlled
RMS-level sensor and three general- purpose
opamps.
age-sensitive control ports. Dynamic range ex-
ceeds 115 dB, and THD is typically 0.003% at 0
dB gain. In the 4301A, the VCA is selected for
low THD at extremely high levels. The RMS de-
tector provides accurate rms-to-dc conversion
over an 80 dB dynamic range for signals with
THAT 4301 Dynamics Processor, dubbed
The VCA provides two opposing-polarity, volt-
High-Performance Voltage
Controlled Amplifier
High-Performance RMS-Level
Detector
Three General-Purpose Opamps
Wide Dynamic Range: >115 dB
Low THD: <0.03%
Low Cost
DIP & Surface-Mount Packages
+
-
OA1
THAT4301
Figure 1. Block Diagram (pin numbers are for DIP only)
IN
IT
2
RMS
18
a
FEATURES
THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA
VCC
high-performance,
11
Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com
CT
OUT
C o r p o r a t i o n
5
VCA,
17
Document 600069 Rev. 03 Copyright © 2009, THAT Corporation
4
IN
EC-
GND VEE
a
9
VCA
log-responding
10
SYM
14
EC+
OUT
exponen-
8
13
Description
6
+
+
-
OA3
OA2
-
crest factors up to 10. One opamp is dedicated
as a current-to-voltage converter for the VCA,
while the other two may be used for the signal
path or control voltage processing.
trol and logarithmic detector response — “deci-
bel-linear”
mathematics of designing the control paths of
dynamics processors. This makes it easy to de-
sign audio compressors, limiters, gates, ex-
panders, de-essers, duckers, noise reduction
systems and the like. The high level of integra-
tion ensures excellent temperature tracking be-
tween
minimizing the external parts count.
12
7
The combination of exponential VCA gain con-
·
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15
16
Compressors
Limiters
Gates
Expanders
De-Essers
Duckers
Noise Reduction Systems
Wide-Range Level Meters
the
APPLICATIONS
VCA
response
Compliant
Compliant
IC Dynamics Processor
Model
4301A
4301A
RoHS
RoHS
4301
4301
THAT Analog Engine
Table 1. Ordering Information
and
THAT 4301, 4301A
the
4301AP20-I
4301P20-I
4301AP20
DIP Pkg
20 pin
---
simplifies
detector,
30 pin DMP
4301M30-I
(SO) Pkg
4301M30
while
---
---
the
®

Related parts for 4301M30-I

4301M30-I Summary of contents

Page 1

... OUT + Compliant EC Compliant + OA2 - THAT Analog Engine ® IC Dynamics Processor THAT 4301, 4301A — simplifies the and the detector, while 20 pin 30 pin DMP Model DIP Pkg (SO) Pkg 4301 RoHS 4301P20-I 4301M30-I 4301A RoHS 4301AP20-I --- 4301 --- 4301M30 4301A 4301AP20 --- Table 1. Ordering Information ...

Page 2

... THD 1. All specifications subject to change without notice. 2. Unless otherwise noted, T =25° Test circuit is the VCA section only from Figure 2. THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com SPECIFICATIONS +18 V Power Dissipation (P -18 V ...

Page 3

... Filtering Time Constant Output Temp. Coefficient o Output Current I OUT 4. Except as noted, test circuit is the RMS-Detector section only from Figure 2. THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com (Cont’d.) 3 4301 Conditions Min Typ ...

Page 4

... C7 100n C8 C3 100n 47uF -15V R6 10K0 1% C6 22uF THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com (Cont’d) OA1 Conditions Min Typ Max Min ±0.5 ±6 — — — 150 500 — ...

Page 5

... N 0.51 Min. 0.02 Min. O 2.8 Min. 0.11 Min. P 0.25 +0.15 -0.05 0.01 +0.006 -0.002 Figure 3. Plastic dual in-line package outline THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com SO Pin Pin Name VCA In 5 OA1 Out ...

Page 6

... Figure 7. VCA 1kHz THD+Noise vs. Input, +15 dB Gain Figure 9. VCA THD vs. Frequency Gain, 1Vrms Input Figure 11. Departure from Ideal Detector Law vs. Level THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com Representative Data Figure 6. VCA 1kHz THD+Noise vs. Input, -15 dB Gain Figure 8. VCA 1kHz THD+Noise vs. Input Gain Figure 10. RMS Output vs. Input Level, 1 kHz & ...

Page 7

... The voltage is usually ap- plied via an external trim potentiometer (R THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com Theory of Operation 2), which is adjusted for minimum signal distortion at unity (0 dB) gain ...

Page 8

... However, a 15% mismatch will not significantly increase ripple-induced distortion THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com in dynamics processors over that caused by signal ripple alone. 2) The time constant of the 4301’ ...

Page 9

... More information on this compressor design, along with suggestions for converting it to soft-knee operation, is given in AN100, Basic Compressor Limiter Design. The designs in AN100 are based on THAT Corporation’s 2150-Series VCAs and 2252 RMS Detector, but are readily adaptable to the 4301 with only minor modifications. In fact, the circuit presented here is functionally identical to the hard-knee circuit published in AN100. THAT Corporation ...

Page 10

... RMS detector output drive the output of OA tive. This forward biases CR , closing the feedback 2 THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com loop such that the junction the threshold detector) sits at -(R the circuit of Figure 14, this is –2 RMS ...

Page 11

... The threshold of compression may be varied over a ±30 dB range from about –46 dBV to +14 dBV. The compression ratio THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com may be varied from 1:1 (no compression) to ¥:1. ...

Page 12

... Page 12 THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA Tel: +1 (508) 478-9200; Fax: +1 (508) 478-0990; Web: www.thatcorp.com Notes Copyright © 2009, THAT Corporation Document 600069 Rev 03 ...

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