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ML145506

PCM Codec–Filter Mono–Circuit

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Issue A

Legacy Device: Motorola MC145506

The ML145506 is a per channel codec–filter PCM mono–circuit. This

device performs the voice digitization and reconstruction, as well as the

band limiting and smoothing required for PCM systems. This device has

HCMOS compatible digital outputs and supplements the Lansdale

ML145502 – ML145505 series of PCM codec–filters. The ML145506 is

functionally similar to the ML145502. It is designed to operate in both

synchronous and asynchronous applications and contain an on–chip pre-

cision reference voltage. The ML145506 is offered in a 22–pin package

and has the capability of selecting from three peak overload voltages (2.5

V, 3.15 V, and 3.78 V).

This device maintains compatibility with Motorola’s family of

MC3419/MC33120 SLIC products.

The ML1455xx family of PCM codec–filter mono–circuits utilize

CMOS due to its reliable low–power performance and proven capability

for complex analog/digital VLSI functions.

ML145506 Features

• 22–Pin Package, HCMOS Output Version of ML145502

• Selectable Peak Overload Voltages (2.5 V, 3.15 V, 3.78 V)

• Push–Pull Analog Output with Gain Adjust

• 64 kHz to 4.1 MHz Transmit and/or Receive Data Clock Rate

• Operating Temperature Range TA = –40° to +85° C

Note: Lansdale lead free (Pb) product, as it

becomes available, will be identified by a part

number prefix change from ML to MLE.