The device features fully programmable receive, transmit, reference, and
auxiliary reference counters accessed through an MCU serial interface. This
feature allows this device to operate in any CT-1 cordless phone application.
The device consists of two independent phase detectors for transmit and
receive loops. A common reference oscillator, driving two independent
reference frequency counters, provides independent reference frequencies for
transmit and receive loops. The auxiliary reference counter allows the user to
select an additional reference frequency for receive and transmit loops if
required.
Operating Voltage Range: 2.5 to 5.5 V
Operating Temperature Range: -40 to 75°C
Operating Power Consumption: 3.0 mA @ 2.5 V
Maximum Operating Frequency:
MC145162 - 60 MHz @ 200 mVpp, V DD = 2.5 V
MC145162-1 - 85 MHz @ 250 mVpp, V DD = 2.5 V
Three or Four Pins Used for Serial MCU Interface
Built-In MCU Clock Output with Frequency of Reference Oscillator ÷3/÷4
Power Saving Mode Controlled by MCU
Lock Detect Signal
On-Chip Reference Oscillator Supports External Crystals to 16.0 MHz
Reference Frequency Counter Division Range: 16 to 4095
Auxiliary Reference Frequency Counter Division Range: 16 to 16,383
Transmit Counter Division Range: 16 to 65,535
Receive Counter Division Range: 16 to 65,535