MC145426 Motorola, MC145426 Datasheet - Page 14

• Manufacturer Part Number: MC145426
• Description: (MC145422 / MC145426) UNIVERSAL DIGITAL-LOOP TRANSCEIVER(UDLT)
• Manufacturer: Motorola

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DataSheet
4
MC145422 MC145426
14
U
2.048 MHz FROM XTAL
.com
SYNC (INTERNAL)
DEMODULATOR
CLK (128 kHz)
INTERNAL
SO1, SO2
SI1, SI2
RE1
TE1
VD
Rx
Tx
NOTE: 1. Slip between master and slave is taken up in this period.
DEMODULATION DATA TRANSFER TO
DEMODULATION BUFFER
VOICE
TRANSFER DEMODULATION BUFFER TO TRANSMIT REGISTER, GENERATE ENABLES,
LATCH SI1, SI2, OUTPUT Tx, SO1, SO2, OUTPUT VALID DATA, START 128 kHz CLOCK, START
MODULATION AFTER FOUR 256 kHz BAUD PERIODS.
DON’T CARE
Figure 11. Slave UDLT Timing
DON’T CARE
125 s
HIGH IMPEDANCE
VOICE
NOTE 1
MOTOROLA