M66238FP 查看數據表（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
OPERATING TIMING
1. Sync clock spike non-removal mode upon occur-
rence of trigger
1-1 Setting of trigger edge when D1=0
One-shot pulse start timing: 1st leading edge of CKO after
TR fall
One-shot pulse polarity: Negative pulse
One-shot pulse width:
16 cycles of CKO
CKO output dividing ratio: 1/2 division
An example set for the condition of address (A1, A0)=(1, 0),
data (D6, D5, D4, D3, D2, D1, D0)=(0, 1, 1, 0, 0, 0, 0) is
shown below. CKO is a clock output synchronized by TR and
PULSE is a one-shot pulse synchronized with the rise of
CKO.
Internal VCO
oscillator clock
tp=1/fvco
tlp
tw(TR)
TR
CKO
PULSE
tsp(CKO)
∆t
tss(CKO)
SPIKE
∆t
tss(PULSE)
tp=1/fout
tw(PULSE)
1-2 Setting of trigger edge when D1=1
One-shot pulse start timing: 1st leading edge of CKO after
TR rise (except the rise of a
spike which occurs when CKO
is stopped).
One-shot pulse polarity: Negative pulse
One-shot pulse width:
16 cycles of CKO
CKO output dividing ratio: 1/2 division
An example set for the condition of address (A1, A0)=(1, 0),
data (D6, D5, D4, D3, D2, D1, D0)=(0, 1, 1, 0, 0, 1, 0) is
shown below. CKO is a clock output synchronized by TR and
PULSE is a one-shot pulse synchronized with the rise of
CKO.
Internal VCO
oscillator clock
TR
CKO
PULSE
tp=1/fvco
tw(TR)
tsp(CKO)
∆t
tss(CKO)
∆t
SPIKE
tlp
tp=1/fout
tw(PULSE)
6
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