MC1451452 Datasheet, PDF (1/2 Pages) Motorola, Inc – 4-Bit Data Bus Inpu PLL Frequency Synthesizer

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MC145145–2/D
4-Bit Data Bus Input
PLL Frequency Synthesizer
Interfaces with Single–Modulus Prescalers
The MC145145–2 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, 14–bit programmable divide–
by–N 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
• 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
NOT RECOMMENDED FOR NEW DESIGNS;
PRODUCT TO BE PHASED OUT.
Closest equivalents are the MC145151–2, MC145170–1,
MC14519X series, and MC14520X series.
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
LD
fR
LATCH
fV
CONTROL
CIRCUITRY
LATCHES
LATCH 0 LATCH 1 LATCH 2 L3
14–BIT N COUNTER
PHASE
DETECTOR
A
PDout
PHASE
φ_V
DETECTOR
B
φ_R
MC145145-2
18
1
P SUFFIX
PLASTIC DIP
CASE 707
20
1
DW SUFFIX
SOG PACKAGE
CASE 751D
ORDERING INFORMATION
MC145145P2 Plastic DIP
MC145145DW2 SOG Package
PIN ASSIGNMENTS
PLASTIC DIP
D1 1
18 D2
D0 2
17 D3
fin 3
VSS 4
VDD 5
OSCin 6
OSCout 7
A0 8
16 REFout
15 φ_R
14 φ_V
13 LD
12 PDout
11 ST
A1 9
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
REV 2
1/98 TN98012200
©_MOMo_Tto_Oro_Rla,_OIn_Lc._A1998
MC145145–2
1