HI20206 Просмотр технического описания (PDF) - Intersil

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HI20206

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

Intersil 

HI20206

Test Circuits (Continued)

OBSERVE DATA

WAVEFORM WITH

AN OSCILLOSCOPE

( RIN = 1MΩ

BW = 200MHz

D1 ~ D8

8 (R)

8 (G)

HI20206

39 - 42

1~4

37

35

330 51

1m

COAXAL CABLE

COAXAL

CABLE

50

5 ~ 12

33

330 51

COAXAL

CABLE

50

ROUT

OBSERVE WITH

AN OSCILLOSCOPE

GOUT

(RIN = 1MΩ

BW = 200MHz

COAXAL CABLE (1m) 1.2K

8 (B)

13 ~ 20

31

330 51

COAXAL

CABLE

50

BOUT

50

47

(TTL)

CLK

21

29

VSET

26

+

-

25

33µF

12.5K

1/2

DIVIDER

f = 35MHz

TTL LEVEL

22

1.2K

COAXIAL CABLE (1m)

47

50

OBSERVE CLK WITH

AN OSCILLOSCOPE

( RIN = 1MΩ

BW = 200MHz

PULSE GENERATOR

8082A (YHP)

f = 35MHz

TTL LEVEL RECTANGULAR WAVE

D

PULSE GENERATOR

8082A (YHP)

AGND DGND AVCC DVCC

DELAY

ADJUSTMENT

FIGURE 4. SET-UP TIME, HOLD TIME, AND RISE AND FALL TIME TEST CIRCUITS

f = 7MHz

TTL LEVEL

RECTANGULAR WAVE

1/2

DIVIDER

MCLK

f = 14MHz

TTL LEVEL

RECTANGULAR WAVE

D1 ~ D8

39 - 42

1~4

37

8 (R)

5 ~ 12

8 (G)

ROUT

35

GOUT

33

8 (B)

13 ~ 20

BOUT

31

30, 32

34, 36

29 AVCC

VSET

26 +

-

25

33µF

21

22

CLK

HI20206

50Ω

EXIT

FET

PROBE

P6202 (TEKTRONIX)

12.5K

Measuring Method, in case the measuring crosstalk of G → R:

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

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

3. 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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