MC145162 Motorola, MC145162 Datasheet - Page 9

• Manufacturer Part Number: MC145162
• Description: 60 MHz and 85 MHz Universal Programmable Dual PLL Frequency Synthesizers
• Manufacturer: Motorola

MOTOROLA
REFERENCE FREQUENCY COUNTER
ENB
CLK
NOTE: ENB must be high during the serial transfer.
D in
IDENTIFIER = 0
Figure 9. Programming Format of the Auxiliary/Reference Frequency Counters
0
ENABLE
SERIAL PERIPHERAL
AUX
REF
INTERFACE PORT
NORMAL I/O PORT
USING
MCU
Figure 11. MCU Interface Using Normal I/O Ports with
USING
SELECT
MCU
Both D in and AD in for Faster Programming Time
Tx–0
FREQUENCY
REFERENCE
SELECT
SELECT
Figure 10. MCU Interface Using SPI
Rx–0
12–BITS REF FREQ
DIVIDE RATIO
REFERENCE
FREQUENCY
COUNTER
DATA
CLK
ENB
AD in
CLK
ENB
D in
D in
FREQUENCY
f R1
REFERENCE
S1
SELECT
AUX DATA BIT = 0
UNIVERSAL PLL
AUX DATA BIT = 1
UNIVERSAL PLL
f R1
S2
14–BITS AUX REF FREQ
FREQUENCY COUNTER
AUX REFERENCE
MC145162 MC145162–1
DIVIDE RATIO
DATA
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