MC145173 查看數據表（PDF） - Motorola => Freescale

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MC145173

Dual-Band PLL Frequency Synthesizer with ADC and Frequency Counter

Motorola => Freescale 

tf

tr

90%

CLK 50%

10%

Dout

90%

50%

10%

tw

1/fclk

tPLH

tTLH

tw

tPHL

tTHL

Figure 2.

SWITCHING WAVEFORMS

VDD

ENB

50%

VSS

tPZL

tPLZ

Dout

50%

tPZH

tPHZ

Dout

50%

Figure 3.

VDD

VSS

HIGH

IMPEDANCE

10%

90%

HIGH

IMPEDANCE

VALID

VDD

Din

50%

VSS

tsu

th

VDD

CLK

50%

VSS

Figure 4.

VDD

ENB

50%

VSS

OUTPUT B,

OUTPUT C,

OUTPUT D

tPLH, tPHL

50%

Figure 6.

ENB

50%

tsu

CLK

50%

FIRST

CLK

tw(H)

VDD

VSS

th

trec

VDD

LAST

VSS

CLK

Figure 5.

ENB

OUTPUT A

OUTPUT A

50%

tPZL

50%

tPLZ

10%

Figure 7.

VDD

VSS

HIGH

IMPEDANCE

HIGH

IMPEDANCE

TEST POINT

DEVICE

UNDER

TEST

CL*

*Includes all probe and fixture capacitance.

Figure 8. Test Circuit

MC145173

6

DEVICE

UNDER

TEST

TEST POINT

5 kΩ

CL*

CONNECT TO VDD

WHEN TESTING tPLZ

AND tPZL.

CONNECT TO VSS

WHEN TESTING tPHZ

AND tPZH.

*Includes all probe and fixture capacitance.

Figure 9. Test Circuit

MOTOROLA

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