參數(shù)資料
型號(hào): M66239FP
元件分類: 時(shí)鐘產(chǎn)生/分配
英文描述: OTHER CLOCK GENERATOR, PQFP144
封裝: 20 X 20 MM, 0.50 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù): 14/26頁
文件大?。?/td> 322K
代理商: M66239FP
M66239FP
Rev.1.00 Mar 16, 2005 page 19 of 23
Timing Requirements
(Ta = 0 to +50°C, Vcc = 3.15 to 3.46V, GND = 0V)
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
MCLK frequency
fMCLK
28
100
MHz
MCLK and SCLK clock duty
fDUTY
45
55
%
TR input pulse width
tw(TR)
500
ns
MCLK and SCLK input rising time
tr
5
ns
MCLK and SCLK input falling time
tf
5
ns
SDATA, SENABLE set-up time
tDS
5
ns
SDATA, SENABLE hold time
tDH
5
ns
SCLK frequency
fSCLK
20
MHz
Internal PLL lock up time
Tplllock
10
ms
RESET pulse width
tw(RESET)
1
s
CL = 10 pF
Switching Characteristics
(Ta = 0 to +50°C, Vcc = 3.15 to 3.46V, GND = 0V)
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Synchronizing precision (jitter)
t
±1.5
ns
Sync. clock CKO output start time
tss(CKO)
Sync. clock CKOB output start time
tss(CKOB)
tLp+50
ns
One-shot pulse output start time
tss(PULSE)
tLp+50
ns
Sync clock CKO output stop time
tsp(CKO)
Sync. clock CKOB output stop time
tsp(CKOB)
40
ns
One-shot pulse width
tw(PULSE)
2 tp–10
2 tp+10
ns
Sync. clock CKO output duty
foDUTY(CKO)
Sync. clock CKOB output duty
foDUTY(CKOB)
40
60
%
CL = 10 pF
Notes: 1. tp = 1/fIN, tLp = tp
× (100 – fDUTY)/100
2. Switching test waveform
Input pulse level MCLK: 0 to Vcc, TR: 0 to Vcc
Input clock rising time: 3 ns
Input clock falling time: 3 ns
Criteria Voltage MCLK: Vcc/2, TR: 1.3 V, Sync. clock: Vcc/2
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參數(shù)描述
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