MC145162 Motorola, MC145162 Datasheet - Page 14

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

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
MC145162 MC145162–1
14
AND f Rx ARE MUXED OUT AT PINS
IF TEST BIT IS SET TO 1, THE f Tx
In normal applications, the TxPS/f Tx and the RxPS/f Rx out-
RESPECTIVELY, FOR Rx/Tx
CHANNEL COUNTER TEST.
TxPS/f Tx AND RxPS/f Rx ,
Tx/Rx CHANNEL COUNTER TEST
RxPS / f Rx
TxPS / f Tx
f in –R
f in –T
CONTROL REGISTER IDENTIFIER = 1
D in
Figure 18. RF Buffer Sensitivity
1
f Rx
f Tx
TxPS
RxPS
0
TEST
of the transmit–channel counter and the receive–channel
counter multiplex out to TxPS/f Tx and RxPS/f Rx respectively.
The user can verify the divided–down output waveform asso-
ciated with the RF input level in the PLL circuitry implementa-
tion (Figure 18).
BIT
16–BIT Rx PROGRAMMABLE
16–BIT Tx PROGRAMMABLE
CHANNELS COUNTER
CHANNELS COUNTER
SELECT
DATA
AUX
CONTROL REGISTER
REF
OUT
3/
4
ENABLE
TxPD
ENABLE
RxPD
MOTOROLA
ENABLE
REF PD