ML145162 データシートの表示（PDF） - LANSDALE Semiconductor Inc.

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ML145162

60 MHz and 85 MHz Universal Programmable Dual PLL Frequency Synthesizers CMOS

LANSDALE Semiconductor Inc. 

ML145162

LANSDALE Semiconductor, Inc.

REFERENCE FREQUENCY COUNTER

IDENTIFIER = 0

REFERENCE

FREQUENCY

SELECT

REFERENCE

FREQUENCY

COUNTER

DIVIDE RATIO

REFERENCE

FREQUENCY

SELECT

AUX

Din

0

REF

Tx–0

Rx–0

ENABLE SELECT SELECT

12–BITS REF FREQ

DATA

fR1

S1

fR1

S2

AUX REFERENCE

FREQUENCY COUNTER

DIVIDE RATIO

14–BITS AUX REF FREQ

DATA

CLK

ENB

NOTE: ENB must be high during the serial transfer.

Figure 9. Programming Format of the Auxiliary/Reference Frequency Counters

Din

MCU

USING

CLK

SERIAL PERIPHERAL

INTERFACE PORT

ENB

UNIVERSAL PLL

AUX DATA BIT = 0

Figure 10. MCU Interface Using SPI

ADin

MCU

Din

USING

NORMAL I/O PORT

CLK

ENB

UNIVERSAL PLL

AUX DATA BIT = 1

Figure 11. MCU Interface Using Normal I/O Ports with

Both Din and ADin for Faster Programming Time

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