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MC145146P2 Datenblatt(PDF) 11 Page - LANSDALE Semiconductor Inc.

Teilenummer MC145146P2
Bauteilbeschribung  4?밄it Data Bus Input PLL Frequency Synthesizer
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Hersteller  LANSDALE [LANSDALE Semiconductor Inc.]
Direct Link  http://www.lansdale.com
Logo LANSDALE - LANSDALE Semiconductor Inc.

MC145146P2 Datenblatt(HTML) 11 Page - LANSDALE Semiconductor Inc.

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LANSDALE Semiconductor, Inc.
ML145146
www.lansdale.com
Page 11 of 12
Issue 0
CHOICE OF
REF. OSC.
FREQUENCY
(ON–CHIP OSC.
OPTIONAL)
CHOICE OF
REF. OSC.
FREQUENCY
(ON–CHIP OSC.
OPTIONAL)
}
}
}
}
FOR USE WITH EXTERNAL
PHASE DETECTOR (OPTIONAL)
FOR USE WITH EXTERNAL
PHASE DETECTOR (OPTIONAL)
LOCK DETECT
SIGNAL
LOCK DETECT
SIGNAL
RECEIVER LO.
443.325
443.950 MHz
(25 kHz STEPS)
8
OSCout
MOD
CONTROL
PDout
fR
fin
D3 D2 D1 D0 A2 A1 A0
ST
φR
φV
fV
LD
OSCin
VDD
VSS
7
5
3
17
16
14
6
4
7
8
6
4
19
20
1
2
11
10
9
12
18
15
13
ML145146
MOD
CONTROL
PDout
fR
fin
D3 D2 D1 D0 A2 A1 A0
ST
φR
φV
fV
LD
OSCin
VDD
VSS
ML145146
LOOP
FILTER
VCO
TRANSMITTER
MODULATION
AND 15.7 MHz
OFFSET
CHOICE OF DETECTOR
ERROR SIGNALS
ML12034 PRESCALER
TRANSMITTER SIGNAL
459.025 – 459.650 MHz
(25 kHz STEPS)
CHIP
SELECT TO
CONTROLLER
TO SHARED CONTROLLER BUS
19
20
1
2
11
10
9
12
3
14
16
17
5
CHIP
SELECT TO
CONTROLLER
TO SHARED CONTROLLER BUS
NOTES:
1. Reciever I.F = 10.7 MHz, low side injection.
2. Duplex operation with 5 MHz receive/transmit separation.
3. fR = 25 kHz, + R chosen to correspond with desired reference oscillator frequency.
4. Ntotal = 17,733 to 17,758 = N • P + A; N = 227, A = 5 to 30 for P = 64.
Figure 13. Synthesizer for UHF Mobil Radio Telephone Channels Demonstrates Use of the ML145146 in
Microprocessor/Microcomputer Controlled Systems Operating to Several Hundred MHz
NOTES:
1. Receiver 1st I.F. = 45 MHz, low side injection; Receiver 2nd I.F. = 11.7 MHz, low side injection.
2. Duplex operation with 45 MHz receive/transmit separation.
5. Only one implementation is shown. Various other configurations and dual–modulus prescaling values to ÷128/÷129 are possible.
3. fR = 7.5 kHz, + R = 1480.
4. Ntotal = N • 32 + A = 27,501 to 28,166: N = 859 to 880; A = 0 to 31.
Figure 14. 666 Channel, Computer Controlled, Mobile Radio Telephone Synthesizer for
800 MHz Cellular Radio Systems
OSCout
X3
RECEIVER
2ND, L.O.
33,300 MHZ
RECEIVER FIRST L.O.
825.030 844.980 MHZ
(30 KHz STEPS)
LOOP
FILTER
VCO
X4
X4
TRANSMITTER
MODULATION
TRANSMITTER SIGNAL
825.030 844.880 MHz
(30 kHz STEPS)
CHOICE OF DETECTOR
ERROR SIGNALS
MC10131
DUAL F/F
ML12011
÷8/÷9 PRESCALER
+32/+32 DUAL MODULUS PRESCALER


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