M66238FP データシートの表示（PDF） - MITSUBISHI ELECTRIC
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M66238FP Datasheet PDF : 11 Pages
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MITSUBISHI 〈DIGITAL ASSP〉
M66238FP
STANDARD CLOCK GENERATOR WITH PLL FREQUENCY SYNTHESIZER
TIMING REQUIREMENTS (Ta=0 to 70°C, Vcc=5V±5%, GND=0V)
Symbol
Parameter
Conditions
tw(CS)
tsu(CS-SCK)
th(SCK-CS)
tw(SCK)
tsu(SIN-SCK)
th(SCK-SIN)
fin
fiDUTY
tw(TR)
tr
tf
CS width
CS set up time
CS hold time
SCK width
SIN set up time
SIN hold time
Clock input frequency
Clock input duty
Trigger input "H" pulse width
Clock input rising time
Clock input falling time
Limits
Unit
Min.
Typ.
Max.
1
µs
50
ns
50
ns
25
ns
25
ns
25
ns
7
12
MHz
40
60
%
200
ns
5
ns
5
ns
SWITCHING CHARACTERISTICS (Ta=0 to 70°C, Vcc=5V±5%, GND=0V)
Symbol
Parameter
Conditions
fvco
VCO oscillation frequency
fout
Synchronous output frequency
∆t
Synchronous accuracy (jitter)
tss(CKO)
Synchronous clock output start
tss(CKOB) Synchronous clock reversible output start
tss(PULSE) One-shot pulse output start
tsp(CKO)
Synchronous clock output stop
tsp(CKOB) Synchronous clock reversible output stop
tw(PULSE) One-shot pulse output width
foDUTY(CKO) Synchronous clock output duty
foDUT(CKOB) Synchronous clock reversible output duty
(Notes)
• tp=1/fout, tlp=tp ! (100 – fvcoduty)/100
• The n value of one-shot pulse output width is set in the register.
CL=15pF
MEASUREMENT CIRCUIT
Min.
25
n • tp–10
40
40
Limits
Typ.
Max.
50
50
±3
tlp+200
tlp+200
tlp+200
40
40
n • tp+10
60
60
Unit
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
%
%
Input
VCC
Output
PG
ZO
Tested
element
CL
• Waveform for switching test
Input pulse level XIN: 0 to Vcc, TR: 0 to 3V
Input pulse rising time: 3 ns
Input pulse falling time: 3 ns
Zo: 50Ω
Decision voltage Input voltage XIN: Vcc/2, Tr: 1.3V
Output voltage All outputs: Vcc/2
• Electrostatic capacitance: CL includes floating capacitance
of connection and probe input capacitance.
9
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