MC145146P-2 Datasheet, PDF (1/2 Pages) Motorola, Inc – 4 BIT DATA BUS INPUT BUS INPUT PLL FREQUENCY SYNTHESIZER

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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by MC145146–2/D
4-Bit Data Bus Input
PLL Frequency Synthesizer
Interfaces with Dual–Modulus Prescalers
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 program-
mable 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.
• 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
NOT RECOMMENDED FOR NEW DESIGNS;
PRODUCT TO BE PHASED OUT.
Closest equivalents are the MC145152–2, MC145170–1,
MC14519X series, and MC14520X series.
OSCin
OSCout
D0
D1
D2
D3
A2
A1
A0
ST
fin
BLOCK DIAGRAM
12–BIT ÷ R COUNTER
L5
L6
L7
fR
LOCK
DETECT
LATCH
CONTROL
CIRCUITRY
LATCHES
L2
L3 L4
10–BIT ÷ N COUNTER
L0
L1
7–BIT ÷ A COUNTER
PHASE
DETECTOR A
PHASE
DETECTOR B
MC145146-2
20
1
P SUFFIX
PLASTIC DIP
CASE 738
20
1
DW SUFFIX
SOG PACKAGE
CASE 751D
ORDERING INFORMATION
MC145146P2 Plastic DIP
MC145146DW2 SOG Package
PIN ASSIGNMENT
D1 1
D0 2
fin 3
VSS 4
PDout 5
VDD 6
OSCin 7
OSCout 8
A0 9
A1 10
20 D2
19 D3
18 fR
17 φ_R
16 φ_V
15 fV
14 MC
13 LD
12 ST
11 A2
LD
PDout
fV
φ_V
φ_R
CONTROL LOGIC
MODULUS CONTROL (MC)
REV 2
1/98
©_MOMo_Tto_Oro_Rla,_OIn_Lc._A1998
MC145146–2
1