CPLL58-1600-2200 Datasheet, PDF (5/7 Pages) CRYSTEK CORPORATION – RF PLL Synthensizer

MICROWAVE
A Division of Crystek Corporation
CPLL58-1600-2200
0.582" × 0.800" SMD
ENVIRONMENTAL COMPLIANCE
Parameter
Conditions
Mechanical Shock
MIL-STD-883, Method 2002
Mechanical Vibration
MIL-STD-883, Method 2007
Solderability
MIL-STD-883, Method 1014
Resistance to Solvents
MIL-STD-883, Method 2016
Programming Guide for CPLL58-XXXX
Introduction
The CPLL58 uses a simple 3 wire interface to program four internal registers. See Figure 1.
CLOCK
DATA DB23 (MSB)
t₁
t₂
DB22
LE
t₃
t₄
DB2
DB1(CONTROL
DB0(LSB)
BIT C2)
(CONTROL BIT C1)
t₆
t₅
LE
Figure 1. Timing Diagram
There are four 24 bit registers that need to be programmed. Which register is written into is simply
controlled by Control Bits C1 and C2. Table I summarizes the Truth Table for Control Bits C1 and C2.
Control Bits
C2
C1
0
0
R Counter
Data Latch
0
1
N Counter (A and B)
1
0
Function Latch (Including Prescaler)
1
1
Initialization Latch
Table I. C2, C1 Truth Table
Page 5 of 7
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