4301W20-U THAT

THAT Analog Engine IC Dynamics Processor THAT4301 FEATURES APPLICATIONS High-Performance Blackmer Compressors Voltage Controlled Amplifier Limiters High-Performance RMS-Level Gates Detector Expanders Three General-Purpose Opamps De-Essers Wide Dynamic Range: >115 dB Duckers Low THD: <0.03% Noise Reduction Systems Low Cost Wide-Range Level Meters DIP & Surface-Mount Packages Description THAT 4301 Dynamics Processor, dubbed converter for the VCA, while the other two may THAT Analog Engine, combines in a single IC be used for the signal path or control voltage pro- all the active circuitry needed to construct a wide cessing. range of dynamics processors. The 4301 in- The combination of exponential VCA gain cludes a high-performance, exponentially-con- control and logarithmic detector response trolled VCA, a log-responding RMS-level sensor decibel-linear response simplifies the math- and three general- purpose opamps. ematics of designing the control paths of dynam- The VCA provides two opposing-polarity, ics processors. This makes it easy to design voltage-sensitive control ports. Dynamic range audio compressors, limiters, gates, expanders, exceeds 115 dB, and THD is typically 0.003% at de-essers, duckers, noise reduction systems and 0 dB gain. The RMS detector provides accurate the like. The high level of integration ensures ex- rms-to-dc conversion over an 80 dB dynamic cellent temperature tracking between the VCA range for signals with crest factors up to 10. One and the detector, while minimizing the external opamp is dedicated as a current-to-voltage parts count. 18 11 17 14 13 12 20 pin 20 pin V C C 19 Model DIP SO S Y M - - Package Package O A 1 IN O U T O A 3 V C A + 20 + E C + E C - 15 T H AT 4 3 0 1 16 + R M S 1 IN O U T O A 2 - IT CT 4301 4301P20-U 4301W20-U G N D V E E 2 5 4 9 10 8 6 7 Figure 1. Block Diagram Table 1. Ordering Information THAT Corporation 45 Sumner Street Milford, Massachusetts 01757-1656 USA Tel: +1 508 478-9200 Fax +1 508 478-0990 Email: info thatcorp.com Web: www.thatcorp.com Copyright 2017, THAT Corporation Doc 600069 Rev 10 THAT4301 Analog Engine Page 2 of 12 Document 600069 Rev 10 IC Dynamics Processor 1,2 SPECIFICATIONS 3 Absolute Maximum Ratings (T =25C) A Positive Supply Voltage (V ) +18 V Power Dissipation (P ) (T = 75C) 700 mW CC D A Negative Supply Voltage (V ) -18 V Operating Temperature Range (T ) 0 to +70 C EE OP Supply Current (I ) 20 mA Storage Temperature Range (T ) -40 to +125 C CC ST Overall Electrical Characteristics Parameter Symbol Conditions Min Typ Max Units Positive Supply Voltage V +7 +15 V CC Negative Supply Voltage V -7 -15 V EE Positive Supply Current I 12 18 mA CC Negative Supply Current I -12 -18 mA EE 4 VCA Electrical Characteristics Parameter Symbol Conditions Min Typ Max Units Input Bias Current I No Signal 30 400 pA B(VCA) Input Offset Voltage V No Signal 4 15 mV OFF(VCA In) Input Signal Current I or I 175 750 Arms IN(VCA) OUT(VCA) Gain at 0V Control G E = E = 0.000V -0.4 0.0 +0.4 dB 0 C+ C Gain-Control Constant T = 25C (T 55C) A CHIP -60 dB < gain < +40dB E /Gain (dB) E & SYM 6.4 6.5 6.6 mV/dB C+ C+ E /Gain (dB) E -6.4 -6.5 -6.6 mV/dB C- C- Gain-Control TempCo E / T Ref T = 27C +0.33 %/C C CHIP CHIP Gain-Control Linearity -60 to +40 dB gain 0.5 2 % Off Isolation E =SYM=-375mV, E =+375mV 110 115 dB C+ C- Output Offset Voltage Change V R = 20k OFF(OUT) out 0 dB gain 1 3 mV +15 dB gain 2 10 mV +30 dB gain 5 25 mV Gain Cell Idling Current I 20 A IDLE Output Noise e 20 Hz - 20 kHz n(OUT) Rout = 20k 0 dB gain -96 -94 dBV +15 dB gain -85 -83 dBV Total Harmonic Distortion THD V = 0 dBV, 1 kHz IN 0 dB gain 0.003 0.007 % 1. All specifications are subject to change without notice. 2. Unless otherwise noted, TA=25C, VCC=+15V, VEE=-15V VCASYM adjusted for min THD 1V, 1 kHz, 0 dB gain. 3. If the device is subjected to stress above the Absolute Maximum Ratings, permanent damage may result. Sustained operation at or near the Absolute Maximum Ratings conditions is not recommended. In particular, like all semiconductor devices, device reliability declines as operating temperature increases. 4. Test circuit is the VCA section only from Figure 2. 5. 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 Email: info thatcorp.com Web: www.thatcorp.com Copyright 2017, THAT Corporation All rights reserved.