參數(shù)資料
型號(hào): LMX2331LSLB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: XO, clock
英文描述: PLLatinum⑩ Low Power Dual Frequency Synthesizer for RF Personal Communications
中文描述: PLL FREQUENCY SYNTHESIZER, 2000 MHz, QCC24
封裝: CSP-24
文件頁(yè)數(shù): 16/21頁(yè)
文件大?。?/td> 496K
代理商: LMX2331LSLB
Functional Description
(Continued)
SERIAL DATA INPUT TIMING
PHASE COMPARATOR AND INTERNAL CHARGE PUMP CHARACTERISTICS
DS012806-10
Note 1:
Parenthesis data indicates programmable reference divider data.
Data shifted into register on clock rising edge.
Data is shifted in MSB first.
Note 2:
t
cs
= Data to Clock Set-Up Time
t
CH
= Data to Clock Hold Time
t
CWH
= Clock Pulse Width High
t
CWL
= Clock Pulse Width Low
t
ES
= Clock to Load Enable Set-Up Time
t
EW
= Load Enable Pulse Width
Th V
CC
/2. The test waveform has an edge rate of 0.6 V/ns with
Test Conditions:
CC
= 2.7V and 2.6V
@
V
CC
= 5.5V.
DS012806-11
Notes:
Phase difference detection range: 2
π
to +2
π
The minimum width pump up and pump down current pulses occur at the D
o
pin when the loop is locked.
R16 = HIGH
www.national.com
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