MC145422P Freescale Semiconductor, Inc, MC145422P Datasheet
MC145422P
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MC145422P Summary of contents
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... Audible Feedback Applications REV 2 9/95 MOTOROLA Motorola, Inc. 1995 Order this document by MC145422/D MC145422 MC145426 P SUFFIX PLASTIC DIP 22 CASE 708 1 DW SUFFIX SOG PACKAGE 24 CASE 751E 1 ORDERING INFORMATION MC145422P Plastic DIP MC145426P Plastic DIP MC145422DW SOG Package MC145426DW SOG Package MC145422 MC145426 1 ...
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MC145422 — MASTER (PLASTIC PACKAGE ref 2 21 LO1 LO2 RE1 TDC/RDC SI1 6 SO1 7 16 CCI SI2 ...
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MC145422 MASTER UDLT BLOCK DIAGRAM LO1 + 1 – 1 LO2 CCI MSI LI * — SE controlled latch MC145426 SLAVE UDLT BLOCK DIAGRAM + 1 LO1 LO2 – POWER– PD DOWN CONTROL X2 OSC X1 LI ...
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ABSOLUTE MAXIMUM RATINGS (Voltage Referenced Rating Symbol DC Supply Voltage V DD – Voltage, Any Pin Current, Any Pin (Excluding Operating Temperature Storage Temperature ...
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ANALOG CHARACTERISTICS ( Parameter Modulation Differential Amplitude ( 440 Ω) Modulation Differential DC Offset Demodulator Input Amplitude (See Note) Demodulator Input lmpedance NOTE: The input level into ...
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CLK, TDC, RDC, RE1, CCI, MSI MSI VD, SO1, SO2 TDC Tx MC145422 MC145426 6 SWITCHING WAVEFORMS t w(H) t w(L) 90% 50% 10 Figure 1. 70% t PHL 70% Figure 2. 70% t PLH 70% ...
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TE1, RE1, MSI TDC, RDC TDC, RDC, CLK Rx TE1 (MC145426) OR MSI (MC145422) SI1, SI2 MOTOROLA SWITCHING WAVEFORMS (continued) 70% t su3 70% Figure 4. 70% 30% t su5 t h1 70% 70% 30% 30% Figure 5. t su6 ...
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TE1 CLK RE1 t P3 70% CLK 70 70% CLK MC145422 MC145426 8 SWITCHING WAVEFORMS (continued) 70 70% Figure 7. 70% Figure 8. SO1, SO2 TE1 Figure 9. 30 70% 30% t ...
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MC145422 MASTER UDLT PIN DESCRIPTIONS V DD Positive Supply Normally Negative Supply This pin is the most negative supply pin, normally ref Reference Output This pin is the output of the internal reference ...
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Rx Receive Data Voice data is clocked into the UDLT from this pin on the falling edges of TDC/RDC under the control of RE1. RE1 Receive Data Enable 1 Input A rising edge on this pin will enable data on ...
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Tx Transmit Data Output This is a standard B–series CMOS output. Voice data is output on this pin on the rising edges of CLK while TE1 is high and is high impedance when TE1 is low. X1 Crystal Input A ...
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V supply and can be driven by TTL or CMOS logic. MASTER OPERATION In the master, data from the linecard is loaded into the re- ceive register each frame from the Rx pin ...
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MSI CCI/TDC/RDC TE1 Tx RE1 Rx VALID SI1, SI2 SO1, SO2 VD DEMODULATOR SYNC TRANSFER RECEIVE REGISTER TO MODULATION BUFFER, LATCH VALID DATA PIN, OUT (INTERNAL) LATCH SI1, SI2. TWO CCI CLOCKS LATER, TRANSFER RECEIVE REGISTER TO MODULATION BUFFER, START ...
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DEMODULATOR SYNC (INTERNAL) CLK (128 kHz) INTERNAL 2.048 MHz FROM XTAL TE1 RE1 VOICE Tx DON’T CARE Rx SI1, SI2 SO1, SO2 VD TRANSFER DEMODULATION BUFFER TO TRANSMIT REGISTER, GENERATE ENABLES, LATCH SI1, SI2, OUTPUT Tx, SO1, SO2, OUTPUT VALID ...
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Both the Differential–Phase Shift Keying and the Modified Differential–Phase–Shift Keying waveforms are shown in Figures 12 thru 14. The DPSK encodes data as phase rever- sals of a 256 kHz carrier indicated by a 180 phase shift ...
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MASTER Figure 14. Typical Signal Waveforms at Demodulator MC145422 MC145426 16 SLAVE BIT PATTERN — 1010101000 BIT PATTERN — RANDOM MOTOROLA ...
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Figure 15. Typical Multichannel Digital Line Card MOTOROLA MC145422 MC145426 17 ...
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MC145422 MC145426 18 Figure 16. Basic Digital Telset MOTOROLA ...
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MOTOROLA MC145426 MC145502 Figure 17. Full–Featured Digital Telset MC145422 MC145426 19 ...
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–A– 24X 0.010 (0.25 –T– SEATING PLANE G 22X Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation ...