전자부품 데이터시트 검색엔진 |
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MC13109FTA 데이터시트(PDF) 9 Page - Motorola, Inc |
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MC13109FTA 데이터시트(HTML) 9 Page - Motorola, Inc |
9 / 28 page MC13109 9 MOTOROLA ANALOG IC DEVICE DATA ELECTRICAL CHARACTERISTICS (continued) Compressor/ALC/Tx Mute/Limiter (See Figure 5) The compressor analog gound is set to the half supply reference so the input and output swing capability will increase as the supply voltage increases. The “C In” input is ac coupled. The ALC (Automatic Level Control) provides a soft limit to the output signal swing as the input voltage increases slowly (i.e., a sine wave is maintained). The Limiter circuit limits rapidly changing signal levels by clipping the signal peaks. The ALC and/or Limiter can be disabled through the MPU serial interface. (Test Conditions: VCC = 2.6 V, fin = 1.0 kHz, TA = 25°C.) Characteristic Condition Input Pin Measure Pin Symbol Min Typ Max Unit Compressor 0 dB Gain Level Vin = –10 dBV, ALC disabled, Limiter disabled C In Lim Out G –3.0 –0.17 3.0 dB Compressor Gain Tracking Vin = –30 dBV, Output Relative to G C In Lim Out Gt –11 –10.23 –9.0 dB Vin = –50 dBV, Output Relative to G –23 –20.23 –17 Maximum Compressor Gain Vin –70 dBV C In Lim Out AVmax – 30 – dB Total Harmonic Distortion Vin –10 dBV, ALC disabled, Limiter disabled C In Lim Out THD – 0.5 – % Input Impedance – C In Lim Out Zin – 16 – k Ω Attack Time Ccap = 1.0 µF, Rfilt = 20 kΩ (see Appendix B) C In Lim Out ta – 3.0 – ms Release Time Ccap = 1.0 µF, Rfilt = 20 kΩ (see Appendix B) C In Lim Out tr – 13.5 – ms Expander to Compressor Crosstalk V (C In) = 0 Vrms, Vin = –10 dBV Rx Audio In Lim Out CT – – –40 dB Tx Data Mute Vin = –10 dBV, ALC disabled No popping detectable during Rx Mute transitions C In Lim Out Me – –70 – dB ALC Dynamic Range – C In Lim Out DR –24 – –2.5 dBV ALC Output Level Vin = –18 dBV C In Lim Out ALCout – –16 – dBV Vin = –2.5 dBV – –12 – Limiter Output Level ALC disabled C In Tx Out Vlim – 0.8 – Vpp |
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