ML145146 Datasheet, PDF (1/12 Pages) LANSDALE Semiconductor Inc. – 4-Bit Data Bus Input PLL Frequency Synthesizer

ML145146
4–Bit Data Bus Input PLL
Frequency Synthesizer
INTERFACES WITH DUAL–MODULUS PRESCALERS
Legacy Device: Motorola MC145146-2
The ML145146 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.
• Operating Temperature Range: TA – 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
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
20
1
P DIP 20 = RP
PLASTIC DIP
CASE 738
20
1
SOG 20 W = -6P
SOG PACKAGE
CASE 751D
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE
MOTOROLA
LANSDALE
P DIP 20
SOG 20W
MC145146P2 ML145146RP
MC145146DW2 ML145146-6P
Note: Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from ML to MLE.
LD
PDout
fV
φ_V
φ_R
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
CONTROL LOGIC
MODULUS CONTROL (MC)
Page 1 of 12
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