LMX2320TM National Semiconductor, LMX2320TM Datasheet - Page 12
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LMX2320TM
Manufacturer Part Number
LMX2320TM
Description
IC FREQ SYNTH 2.0GHZ 20-TSSOP
Manufacturer
National Semiconductor
Series
PLLatinum™r
Type
PLL Frequency Synthesizerr
Datasheet
1.LMX2325TM.pdf
(22 pages)
Specifications of LMX2320TM
Pll
Yes
Input
CMOS, TTL
Output
CMOS
Number Of Circuits
1
Ratio - Input:output
1:1
Differential - Input:output
Yes/No
Frequency - Max
2GHz
Divider/multiplier
Yes/No
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-TSSOP
Frequency-max
2.5GHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
*LMX2320TM
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LMX2320TM
Manufacturer:
TI/NSC
Quantity:
5 510
Company:
Part Number:
LMX2320TMC
Manufacturer:
NS
Quantity:
148
www.national.com
Functional Description
SERIAL DATA INPUT TIMING
Notes:
Parenthesis data indicates programmable reference divider data.
Data shifted into register on clock rising edge.
Data is shifted in MSB first.
Test Conditions:
The Serial Data Input Timing is tested using a symmetrical waveform around V
V
Phase Characteristics
In normal operation, the FC pin is used to reverse the
polarity of the phase detector. Both the internal and any
external charge pump are affected.
Depending upon VCO characteristics, FC pin should be set
accordingly:
When FC is set HIGH or OPEN CIRCUIT, the monitor pin of
the phase comparator input, f
divider output, f
programmable divider output, f
PHASE COMPARATOR AND INTERNAL CHARGE PUMP CHARACTERISTICS
Notes:
Phase difference detection range: −2 to +2
The minimum width pump up and pump down current pulses occur at the D
FC = HIGH
CC
= 2.7V and 2.6V
When VCO characteristics are like (1), FC should be set
HIGH or OPEN CIRCUIT;
When VCO characteristics are like (2), FC should be set
LOW.
r
. When FC is set LOW, f
@
V
CC
= 5.5V.
p
out
.
, is set to the reference
(Continued)
out
is set to the
o
pin when the loop is locked.
CC
12
/2. The test waveform has an edge rate of 0.6 V/ns with amplitudes of 2.2V
VCO Characteristics
DS012339-23
DS012339-21
DS012339-22
@