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ML33111 Scheda tecnica(PDF) 2 Page - LANSDALE Semiconductor Inc. |
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ML33111 Scheda tecnica(HTML) 2 Page - LANSDALE Semiconductor Inc. |
2 / 12 page www.lansdale.com Page 2 of 12 Issue A LANSDALE Semiconductor, Inc. ML33111 PIN FUNCTION DESCRIPTION Name Pin Description Ground 1 Connect to a clean power supply ground. Compressor Output 2 Output of the compressor section. Compressor Input 3 Compressor input. The input impedance is nominally 10 k Ω. Nominal signal range is 1.0 mVrms to 1.0 Vrms in normal mode, and up to 0.8 Vrms in passthrough mode. Must be capacitor coupled to the signal source. Compressor Mute 4 A logic high mutes the compressor. A logic low permits normal operation and passthrough. Compressor Filter 5 Connect an external capacitor to filter the full wave rectifier’s output. This capacitor affects attack and decay times, and low frequency accuracy. Amplifier #1 6, 7 Inverting input (7) and output (6) of an op amp internally referenced to Vb. Passthrough 8 A logic high sets the gain of both expander and compressor to ≈ 0 dB, independent of input level. Amplifier #2 9, 10 Inverting input (9) and output (10) of an op amp internally referenced to Vb. Expander Filter 11 Connect an external capacitor to filter the full wave rectifier’s output. This capacitor affects attack and decay times, and low frequency accuracy. Expander Mute 12 A logic high mutes the expander. A logic low permits normal operation and passthrough. No Connect 13 This pin is not internally connected to anything. Expander Input 14 Expander input. The input impedance is nominally 10.9 k Ω. Nominal signal range is 10 mVrms to 316 mVrms in normal mode, and up to 1.0 Vrms in passthrough mode. Must be capacitor coupled to the signal source. Expander Output 15 Output of the expander section. VCC 16 Power supply. Connect to a power supply voltage in the range of 3.0 V to 7.0 V. Bypass capacitor should be provided at this pin. TRANSFER FUNCTIONS Vb 15 k Rectifier 40 k ∆ Gain Vout Vin Vout = 10 x Vin2 Expander Compressor Vb Rectifier ∆ Gain Vin Vout 10 k Compression Expansion 20 dB 10 dB 0 dB –10 dB – 20 dB – 30 dB – 40 dB 10 mV 31.6 mV 316 mV 1.0 V 100 mV 10 mV 1.0 mV (Voltages are rms) Vout 0.3162 x V in MAXIMUM RATINGS Rating Symbol Value Unit VCC Supply Voltage (Pin 16 – Pin 1) VCC – 0.5, +12 Vdc High Input Voltage (Pins 3, 4, 8, 12, 14) VIH VCC + 0.5 Vdc Low Input Voltage (Pins 3, 4, 8, 12, 14) VIL – 0.5 Vdc Output Source Current (Pins 2, 6, 10, 15) IO+ Self-limiting mA Output Sink Current (Pins 2, 6, 10, 15) IO– Self-limiting mA Storage Temperature Tstg – 65, +150 °C NOTE: Devices should not be operated at these limits. The “Recommended Operating Conditions” provides for actual device operation. |
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