ML145145 Datasheet, PDF (1/12 Pages) LANSDALE Semiconductor Inc. – 4-Bit Data Bus Input PLL Frequency Synthesizer

ML145145
4–Bit Data Bus Input PLL
Frequency Synthesizer
INTERFACES WITH SINGLE–MODULUS PRESCALERS
Legacy Device: Motorola MC145145-2
The ML145145 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, 14–bit programmable
divide–by–N 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
• Single Modulus 4–Bit Data Bus Programming
• ÷N Range = 3 to 16,383, ÷R Range = 3 to 4,095
• “Linearized” Digital Phase Detector Enhances
Transfer Function Linearity
• Two Error Signal Options:
Single–Ended (Three–State)
Double–Ended
REFout
BLOCK DIAGRAM
OSCin
OSCout
D0
D1
D2
D3
A0
A1
A2
ST
fin
12–BIT R COUNTER
LATCH 4 LATCH 5 LATCH 6
LOCK
DETECT
fR
LATCH
fV
CONTROL
CIRCUITRY
LATCHES
LATCH 0 LATCH 1 LATCH 2 L3
14–BIT N COUNTER
PHASE
DETECTOR
A
PHASE
DETECTOR
B
18
1
P DIP 18 = VP
PLASTIC DIP
CASE 707
20
1
SOG 20 = -6P
SOG PACKAGE
CASE 751D
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE
MOTOROLA
LANSDALE
P DIP 18
SOG 20
MC145145P1 ML145145VP
MC145145DW2 ML145145-6P
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
φ_V
φ_R
PIN ASSIGNMENTS
PLASTIC DIP
D1 1
D0 2
18 D2
17 D3
fin 3
VSS 4
VDD 5
OSCin 6
OSCout 7
A0 8
A1 9
16 REFout
15 φ_R
14 φ_V
13 LD
12 PDout
11 ST
10 A2
SOG PACKAGE
D1 1
D0 2
NC 3
fin 4
VSS 5
VDD 6
OSCin 7
OSCout 8
A0 9
A1 10
20 D2
19 D3
18 REFout
17 φ_R
16 φ_V
15 LD
14 PDout
13 ST
12 A2
11 NC
NC = NO CONNECTION
Page 1 of 12
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