ML145162 datasheet(14/24 Pages) LANSDALE

Part #	ML145162

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

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Manufacturer	LANSDALE [LANSDALE Semiconductor Inc.]

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LANSDALE Semiconductor, Inc.

ML145162

fin–R

16–BIT Rx PROGRAMMABLE

CHANNELS COUNTER

RxPS

RxPS / fRx

fRx

16–BIT Tx PROGRAMMABLE

CHANNELS COUNTER

fin–T

TxPS

TxPS / fTx

fTx

IF TEST BIT IS SET TO 1, THE fTx

AND fRx ARE MUXED OUT AT PINS

TxPS/fTx AND RxPS/fRx,

RESPECTIVELY, FOR Rx/Tx

CHANNEL COUNTER TEST.

CONTROL REGISTER IDENTIFIER = 1

REF PD

ENABLE

RxPD

ENABLE

TxPD

ENABLE

10

TEST

BIT

AUX

DATA

SELECT

CONTROL REGISTER

Din

REF

OUT

Figure 18. RF Buffer Sensitivity

3/

4

Tx/Rx CHANNEL COUNTER TEST

In normal applications, the TxPS/fTx and the RxPS/fRx out-

put pins indicate the power saving mode status. However, the

user can examine the Tx and Rx channel counter outputs by

setting the Test bit in the control register to 1. The final value

of the transmit–channel counter and the receive–channel count-

er multiplex out to TxPS/fTx and RxPS/fRx respectively. The

user can verify the divided–down output waveform associated

with the RF input level in the PLL circuitry implementation

(Figure 18).

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ML145162 Datasheet(PDF) 14 Page - LANSDALE Semiconductor Inc.

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