MOTOROLA MC145146DW2 4-bit data bus input pll frequency synthesizer Datasheet

Order this document
by MC145146–2/D
SEMICONDUCTOR TECHNICAL DATA
! !"
Interfaces with Dual–Modulus Prescalers
20
1
The MC145146–2 is programmed by a 4–bit input, with strobe and address
lines. The device features consist of a reference oscillator, 12–bit programmable reference divider, digital phase detector, 10–bit programmable divide–
by–N counter, 7–bit divide–by–A counter, and the necessary latch circuitry for
accepting the 4–bit input data.
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P SUFFIX
PLASTIC DIP
CASE 738
Operating Temperature Range: – 40 to 85°C
Low Power Consumption Through the Use of CMOS Technology
3.0 to 9.0 V Supply Range
Programmable Reference Divider for Values Between 3 and 4095
Dual–Modulus 4–Bit Data Bus Programming
÷ N Range = 3 to 1023, ÷ A Range = 0 to 127
“Linearized” Digital Phase Detector Enhances Transfer Function Linearity
Two Error Signal Options:
Single–Ended (Three–State)
Double–Ended
1
ORDERING INFORMATION
MC145146P2
MC145146DW2
BLOCK DIAGRAM
12–BIT ÷ R COUNTER
OSCout
D0
D1
D2
D3
A2
A1
A0
ST
L5
LATCH
CONTROL
CIRCUITRY
fR
LOCK
DETECT
L7
PHASE
DETECTOR A
LATCHES
L2
fin
L6
L3
Plastic DIP
SOG Package
PIN ASSIGNMENT
NOT RECOMMENDED FOR NEW DESIGNS;
PRODUCT TO BE PHASED OUT.
Closest equivalents are the MC145152–2, MC145170–1,
MC14519X series, and MC14520X series.
OSCin
DW SUFFIX
SOG PACKAGE
CASE 751D
20
D1
1
20
D2
D0
2
19
D3
fin
3
18
fR
VSS
4
17
φR
PDout
5
16
φV
VDD
6
15
fV
OSCin
7
14
MC
OSCout
8
13
LD
A0
9
12
ST
A1
10
11
A2
LD
PDout
fV
L4
10–BIT ÷ N COUNTER
L0
L1
PHASE
DETECTOR B
φV
φR
7–BIT ÷ A COUNTER
CONTROL LOGIC
MODULUS CONTROL (MC)
REV 2
1/98

Motorola, Inc. 1998
MOTOROLA
MC145146–2
1
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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
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Motorola was negligent regarding the design or manufacture of the part. Motorola and
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
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MC145146–2
2
◊
JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 141,
4–32–1 Nishi–Gotanda, Shagawa–ku, Tokyo, Japan. 03–5487–8488
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51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298
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MC145146–2/D
MOTOROLA
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