HI1260JCQ Просмотр технического описания (PDF) - Intersil

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HI1260JCQ

Triple 8-Bit, 35 MSPS, RGB, 3-Channel D/A Converter

Intersil 

HI1260

Test Circuits and Waveforms (Continued)

OBSERVE DATA WAVEFORM

WITH AN OSCILLOSCOPE

( ) RIN = 1MΩ

BW = 200MHz

CO-AXIAL CABLE (1m)

50

47

HI1260

D1 - D8

8

(R)

8

(G)

8

(B)

39 - 42

44 - 47

1-8

9 - 16

19, 37, 43

(1m)

COAXIAL CABLE

33

330

51 COAXIAL

CABLE

31

330

51 COAXIAL

CABLE

29

330

27

51 COAXIAL

CABLE

ROUT

50

OBSERVE CLK WAVEFORM

WITH AN OSCILLOSCOPE

( ) GOUT

RIN = 1MΩ

BW = 200MHz

50

BOUT

50

(TTL)

1/2

DIVIDER

f = 35MHz

TTL LEVEL

PULSE GENERATOR

8082A (YHP)

VSET

24

12.5K

+

-

23

33µF

18

20

1.2K

COAXIAL CABLE (1m)

47

50

OBSERVE CLK WAVEFORM

WITH AN OSCILLOSCOPE

( ) RIN = 1MΩ

BW = 200MHz

f = 35 MSPS

TTL LEVEL RECTANGULAR WAVE

AGND DGND AVCC DVCC

D

PULSE GENERATOR

8082A (YHP)

DELAY ADJUSTMENT

FIGURE 4. SETUP TIME, HOLD TIME, AND RISE AND FALL TIME TEST CIRCUITS

f = 7MHz

TTL LEVEL

RECTANGULAR WAVE

1/2

DIVIDER

MCLK

f = 14 MSPS

TTL LEVEL

RECTANGULAR WAVE

D1 - D8 39 - 42

19, 37, 43

8 (R)

8 (G)

44 - 47

1-8

ROUT

33

GOUT

31

8 (B)

9 - 16

29 BOUT

28, 30, 32

34 - 36 27 AVCC

VSET

24

+

-

23

18

CLK

33µF

20

50Ω EXIT

FET

PROVE

P6202

(TEKTRONIX)

12.5K

HI1260

NOTES: The following notes cover the measurement methods in case the measuring crosstalk of G → R:

7. Apply the data to G only and measure the power of the frequency component of the data at ROUT.

8. Apply the data to R only and measure the power of the frequency component of the data at ROUT.

9. Take the difference of the above two powers. The unit is in dB.

FIGURE 5. CROSSTALK AMONG R, G AND B TEST CIRCUIT

SPECTRUM

ANALYZER

10-8

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