データシートサーチシステム |
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MC145446AFW データシート(PDF) 5 Page - Motorola, Inc |
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MC145446AFW データシート(HTML) 5 Page - Motorola, Inc |
5 / 14 page MC145446A MOTOROLA 5 DTMF RECEIVER CHARACTERISTICS (VCC = 5.0 V ± 10%, TA = – 20 to 70°C) Characteristic Symbol Conditions Min Typ Max Unit Input Impedance 50 — — k Ω Detect Signal Level (Each Tone) – 48 — 0 dBm Twist (High Group Tone/Low Group Tone – 10 — 10 dB Frequency Detect Band Width (Figure 4) ±1.5% ±2Hz — — — Frequency No–Detect Band Width (Figure 4) — — ± 3.5 % DTMF Detect Timing OFF to ON TCDON CD1 = 0, CD0 = 1 — 25 — ms CD1 = 1, CD0 = 0 — 30 — CD1 = 1, CD0 = 1 — 40 — ON to OFF TCDOFF CD1 = 0, CD0 = 1 — 25 — CD1 = 1, CD0 = 0 — 35 — CD1 = 1, CD0 = 1 — 25 — DEMODULATOR CHARACTERISTICS (VCC = 5.0 V ± 10%, TA = – 20 to 70°C) Characteristic Symbol Conditions Min Typ Max Unit Bit Bias ID Input Level = – 24 dBm S/N = 4 dB — 5 — % Bit Error Rate (CCITT Line Simulation, 511–Bit Pattern) BER S/N = 4 dB — 0.00001 — — SWITCHING CHARACTERISTICS (VCC = 5.0 V ± 10%, TA = – 20 to 70°C) Characteristic Symbol Timing Diagram Reference No. Min Typ Max Unit Input Pulse Width (H) E, SCK twh 1 50 — — ns Input Pulse Width (L) E, SCK twl 2 50 — — ns Clock Cycle tc 3 100 — — ns Input Rise Time tr 4 — — 2 µs Input Fall Time tf 5 — — 2 µs Recovery Time E to SCK trec 6, 18 50 — — ns Setup Time DATA to SCK tsu 7 50 — — ns R/W ↓ to DATA 9 100 — — ns R/W ↑ to DATA 12 50 — — ns Hold Time SCK to DATA th 8 50 — — ns E to R/W 10 50 — — ns DATA to R/W 14 50 — — ns R/W to DATA 15 50 — — ns Read Data Delay Time E to DATA td 13 — — 50 ns SCK to DATA 17 — — 50 ns Enable Minimum Interval twe 11 — — 450 ns Mode Switch Minimum Interval twm 16 — — 600 ns |
同様の部品番号 - MC145446AFW |
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同様の説明 - MC145446AFW |
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