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TDA1581 Datasheet(PDF) 5 Page - NXP Semiconductors |
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TDA1581 Datasheet(HTML) 5 Page - NXP Semiconductors |
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5 / 14 page  March 1992 5 Philips Semiconductors Preliminary specification Decoder for traffic warning (VWF) radio transmissions TDA1581T LIMITING VALUES In accordance with the Absolute Maximum System (IEC134). CHARACTERISTICS Vp = 8.5 V; Tamb = +25 °C; measured at nominal input signal: ViSK = 8 mV, f = 57 kHz amplitude modulated with fm = 34.95 Hz and m = 60% for ‘BK-traffic area C’ signal; or with fm = 125 Hz and m = 30% for DK signal. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VP = V7-20 supply voltage pin 7 −− 15 V V2; 3-20 switch output voltage pins 2 or 3 −0.5 − 15 V I2; 3 switch output current pins 2 or 3 −10 − 5mA V15-20 signal input voltage pin 15 −0.5 − VP V I15 signal input current pin 15 −−−10 mA Ptot total power dissipation −− 800 mW Tstg storage temperature range −55 − +150 °C Tamb operating ambient temperature range −30 − +80 °C SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VP supply voltage pin 7 7.5 − 10 V IP supply current pin 7 − 615 mA SK amplifier/decoder Zi input impedance f ≤ 57 kHz 60 −− k Ω Vi(p-p) input voltage (peak-to-peak value) 2 −− V ViSK input voltage at start of gain control Vo9BK = −3 dB − 2.4(1) − mV Gv9-15 voltage gain V9BK / V15SK − 44(1) − dB ∆Gv9-15 gain spread −−±2dB ∆Gv gain control range 40 −− dB Vo9BK controlled output voltage − 440 − mV Vo9DK − 220 − mV BK circuit Vo5BKon switch-on threshold level pin 3 high-Z 600 670 750 mV switch hysteresis 3 3.5 4 dB V4-20off BK switch threshold level for BK-off (SK-off) (typ. value = 0.21V8-20) pin 3 conducting 0.8 0.88 0.97 V SK output (pin 3) I3 permitted load current −− 0.5 mA V3-20sat saturation voltage I3 = 1.5 mA −− 0.35 V V3-20 rejection voltage I3 <5 µA18 −− V V o5BKon V o5BKoff ---------------------- |
Similar Part No. - TDA1581 |
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Similar Description - TDA1581 |
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