NE572N Philips Semiconductors, NE572N Datasheet
NE572N
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NE572N Summary of contents
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... TRACK TRIM B RECOV. CAP RECT RECOV. CAP ATTACK CAP A RECT OUT ATTACK CAP B G OUT THD TRIM THD TRIM GND NOTE package released in large SO (SOL) package only. ORDER CODE DWG # NE572D 0005 NE572N 0406 SA572D 0005 SA572F 0582 SA572N 0406 853-0813 90829 ...
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... Philips Semiconductors RF Communications Products Programmable analog compandor BLOCK DIAGRAM R1 (7,9) 6.8k (6,10) 500 (3,13) 270 (16) P.S. (8) DC ELECTRICAL CHARACTERISTICS Standard test conditions (unless otherwise noted 100mV at 1kHz 3. RMS SYMBOL PARAMETER V Supply voltage CC I Supply current CC V Internal voltage reference R Total harmonic distortion ...
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... Philips Semiconductors RF Communications Products Programmable analog compandor TEST CIRCUIT 2.2 F 6.8k (7, (2,14 BUFFER (4,12) 2.2 F 3.3k (3,13) V RECTIFIER AUDIO SIGNAL PROCESSING IC COMBINES VCA AND FAST AT- TACK/SLOW RECOVERY LEVEL SENSOR In high-performance audio gain control applications desirable to independently control the attack and recovery time of the gain control signal ...
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... Philips Semiconductors RF Communications Products Programmable analog compandor where 6. 140 280 ( where 6. 140 280 the differential output current of the gain O cell and I is the gain control current of the G gain cell. If all transistors Q through Q are of the 1 4 same size, equation (2) can be simplified to: ...
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... Philips Semiconductors RF Communications Products Programmable analog compandor + V REF A2 – Figure 2. Simplified Rectifier Schematic Q10 Q17 – 10k I R1 D11 D12 CA TRACKING TRIM Figure 3. Buffer Amplifier Schematic October 7, 1987 Buffer Amplifier REF In audio systems desirable to have fast attack time and slow recovery time for a tone burst input ...
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... Philips Semiconductors RF Communications Products Programmable analog compandor AVG ) OUT ( =140 A) 1 Both the resistors R and R are tied internal summing nodes 6.8k internal 1 resistor. The maximum input current into the gain cell can be as large as 140 A. This corresponds to a voltage level of 140 A 6 ...
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... Philips Semiconductors RF Communications Products Programmable analog compandor Basic Compressor Figure 5 shows the hook-up of the circuit as a compressor. The IC is put in the feedback loop of the OPA A . The system gain 1 expression is as follows OUT ( AVG ) and CDC form a DC feedback DC1 DC2 for A ...
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... Philips Semiconductors RF Communications Products Programmable analog compandor RMS COMPRESSION IN 3.0V 547.6MV 400MV 100MV 10MV 1MV 100 October 7, 1987 2 EXPANDOR OUT INPUT TO G AND RECT Figure 6. NE572 System Level 9 Product specification NE/SA572 REL LEVEL ABS LEVEL dB dBM +29.54 +11.76 +14.77 –3.00 +12.0 – ...