LMX3305 National Semiconductor, LMX3305 Datasheet - Page 6

• Manufacturer Part Number: LMX3305
• Description: Triple Phase Locked Loop for RF Personal Communications
• Manufacturer: National Semiconductor

www.national.com
Charge Pump Current Specification Definitions
I1 = CP sink current at V
I2 = CP sink current at V
I3 = CP sink current at V
I4 = CP source current at V
I5 = CP source current at V
I6 = CP source current at V
1. I
2. I
3. I
V = Voltage offset from positive and negative rails. Dependent on VCO tuning range relative to V
[
[|I2| − |I5|] / [
[|I2
1
Do
Do-sink
Do
⁄
2
*
@
vs V
vs T
{|I1| − |I3|}] / [
temp| − |I2
vs I
A
Do
= Charge Pump Output Current magnitude variation vs Temperature =
Do-source
= Charge Pump Output Current magnitude variation vs Voltage =
1
⁄
2
*
{|I2| + |I5|}]
@
1
⁄
2
25˚C|] / |I2
= Charge Pump Output Current Sink vs Source Mismatch =
*
Do
Do
Do
{|I1| + |I3|}]
Do
Do
Do
= V
= V
= V
= V
= V
= V
*
P
P
/2
100%
− V
@
P
P
/2
25˚C|
− V
*
100% and [
*
100% and [|I5
1
⁄
2
*
{|I4| − |I6|}] / [
@
temp| − |I5
1
⁄
2
*
@
{|I4| + |I6|}]
25˚C|] / |I5
6
*
@
100%
25˚C|
*
100%
CC
and ground. Typical values are between 0.5V and 1.0V.
DS101361-4