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M-8888-01T Folha de dados(PDF) 9 Page - Clare, Inc. |
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M-8888-01T Folha de dados(HTML) 9 Page - Clare, Inc. |
9 / 14 page M-8888 www.clare.com 9 Rev. 1 AC Characteristics Parameter Symbol Min Typ* Max Units Receive signal conditions Valid input signal levels - -29 - +1 dBm (each tone of composite signal; Notes 1, 2, 3, 5, 6, 9) - 27.5 - 869 mV RMS Positive twist accept (Notes 2, 3, 6, 9) - - - 6 dB Negative twist accept (Notes 2, 3, 6, 9) - - - 6 dB Frequency deviation accept (Notes 2, 3, 5, 9) - ± 1.5% ± 2 Hz - - Nom. Frequency deviation reject (Notes 2, 3, 5) - ± 3.5% - - Nom. Third tone tolerance (Notes 2, 3, 4, 5, 9, 10) - - -16 - dB Noise tolerance (Notes 2, 3, 4, 5, 7, 9, 10) - - -12 - dB Dial tone tolerance (Notes 2, 3, 4, 5, 8, 9, 11) - - +22 - dB Call progress Lower frequency (@ -25 dBm) accept f LA - 320 - Hz Upper frequency (@ -25 dBm) accept f HA - 510 - Hz Lower frequency (@ -25 dBm) reject f LR - 290 - Hz Upper frequency (@ -25 dBm) reject f HR - 540 - Hz Receive timing Tone present detect time t DP 511 14 ms Tone absent detect time t DA 0.5 4 8.5 ms Tone duration accept (the Timing Diagrams on page 10) t REC -- 40 ms Tone duration reject (the Timing Diagrams on page 10) t REC 20 - - ms Interdigit pause accept (the Timing Diagrams on page 10) t ID -- 40 ms Interdigit pause reject (the Timing Diagrams on page 10) t DO 20 - - ms Delay St to b3 t PStb3 -13 - µs Delay St to RX O-RX3 t PStRX -8 - µs Transmit timing Tone burst duration (DTMF mode) t BST 50 - 52 ms Tone pause duration (DTMF mode) t PS 50 - 52 ms Tone burst duration (extended, call progress mode) t BSTE 100 - 104 ms Tone pause duration (extended, call progress mode) t PSE 100 - 104 ms Tone output High group output level (R L = 10 KΩ)VHOUT -6.1 - -2.1 dBm Low group output level (R L = 10 KΩ)VLOUT -8.1 - -4.1 dBm Pre-emphasis (R L = 10 KΩ)dBP 02 3 dB Output distortion (R L = 10 kΩ, 3.4 KHz bandwidth) THD - -25 - dB Frequency deviation (f = 3.5795 MHz) f D - ± 0.7 ± 1.5 % Output load resistance R LT 10 - 50 k Ω Microprocessor interface RD, WR low pulse width t CL 200 - - ns RD, WR high pulse width t CH 180 - - ns RD, WR rise and fall time t R, tF -- 25 ns Address hold time t AH 10 - - ns Address setup time t AS 23 - - ns Data hold time (read) t DHR 22 - - ns RD to valid data delay (200 pF load) t DDR - - 150 ns Data setup time (write) t DSW 45 - - ns Data hold time (write) t DHW 10 - - ns Input capacitance, D0-D3 C IN -5 - pF Output capacitance, IRQ /CP C/ OUT -5 - pF |
Nº de peça semelhante - M-8888-01T |
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Descrição semelhante - M-8888-01T |
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