THS7327 datasheet(6/26 Pages) TI

Part #	THS7327

Description	3-Channel RGBHV Video Buffer with I2C Control, Selectable Filters, Monitor Pass-Thru,2:1 Input MUX, and Selectable Input Bias Modes

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Manufacturer	TI [Texas Instruments]

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ELECTRICAL CHARACTERISTICS, V

A = VDD = 5 V

THS7327

SLOS502 – SEPTEMBER 2006

R

L = 150Ω || 5pF to GND for Monitor Output, 19kΩ || 8pF Load to GND for ADC Buffer, ADC Buffer Filter = 9MHz, SAG pin

shorted to Monitor Output Pin (unless otherwise noted)

TYP

OVER TEMPERATURE

PARAMETER

TEST CONDITIONS

0

°C to

–40

°C to

25

°C

25

°C

UNITS

MIN/MAX

70

°C

85

°C

AC PERFORMANCE

Filter Select = 9 MHz(1)

9

6.8/10.4

6.7/10.5

MHz

Min/Max

Filter Select = 16 MHz(1)

16

13.1/9.6

12.9/19.7

12.8/19.7

MHz

Min/Max

Buffer Output

Filter Select = 35 MHz(1)

35

28/40.5

27.8/41.3

27.7/41.3

MHz

Min/Max

Small-signal bandwidth

VO = 0.2 VPP

(–3 dB)

Filter Select = 75 MHz(1)

78

64/89

63.5/92.3

63.4/92.4

MHz

Min/Max

Filter Select = Bypass

500

MHz

Typ

MonitorOutput

500

MHz

Typ

Filter Select = 9 MHz

9

MHz

Typ

Filter Select = 16 MHz

16

MHz

Typ

Buffer Output

Filter Select = 35 MHz

35

MHz

Typ

Large-signal bandwidth

VO = 1 VPP

(–3 dB)

Filter Select = 75 MHz

78

MHz

Typ

Filter Select = Bypass

500

MHz

Typ

Monitor Output

VO = 2 VPP

425

MHz

Typ

Buffer Output

Filter Select = Bypass: VO = 1 VPP

1150

V/

µs

Typ

Slew rate

Monitor Output

VO = 2 VPP

1300

V/

µs

Typ

Filter Select = 9 MHz

56

ns

Typ

Filter Select = 16 MHz

31

ns

Typ

Buffer Output

Filter Select = 35 MHz

16

ns

Typ

Group delay at 100 kHz

Filter Select = 75 MHz

8

ns

Typ

Filter Select = Bypass

1.3

ns

Typ

Monitor Output

1.25

ns

Typ

Filter Select = 9 MHz: at 5.1 MHz

10.5

ns

Typ

Filter Select = 16 MHz: at 11 MHz

7.2

ns

Typ

Group delay variation

Buffer Output

with respect to 100 kHz

Filter Select = 35 MHz: at 27 MHz

4

ns

Typ

Filter Select = 75 MHz: at 54 MHz

2

ns

Typ

Filter Select = 9 MHz: at 5.75 MHz

0.4

-0.3/1.5

–0.35/1.55

–0.4/1.6

dB

Min/Max

Filter Select = 9 MHz: at 27 MHz

39

31

30.5

30

dB

Min

Filter Select = 16 MHz: at 11 MHz

0.5

-0.3/1.5

–0.35/1.55

–0.4/1.6

dB

Min/Max

Filter Select = 16 MHz: at 54 MHz

40

32

31.5

31

dB

Min

Attenuation with

Buffer Output (2)

respect to 100 kHz

Filter Select = 35 MHz: at 27 MHz

1

-0.3/2.7

-0.35/2.75

-0.4/2.8

dB

Min/Max

Filter Select = 35 MHz: at 74 MHz

27

19

18.5

18

dB

Min

Filter Select = 75 MHz: at 54 MHz

0.6

-0.3/1.8

–0.4/1.9

–0.45/2

dB

Min/Max

Filter Select = 75 MHz: at 148 MHz

25

17

16.5

16

dB

Min

Buffer Output

Filter Select = 9 MHz: NTSC/PAL

0.3/0.45

%

Typ

Differential gain

Monitor Output

NTSC/PAL

0.07/0.08

%

Typ

Buffer Output

Filter Select = 9 MHz: NTSC/PAL

0.45/0.5

°

Typ

Differential phase

Monitor Output

NTSC/PAL

0.07/0.08

°

Typ

Filter Select = 9 MHz

–61

dB

Typ

Filter Select = 16 MHz

–60

dB

Typ

Buffer Output

Total harmonic

Filter Select = 35 MHz

–57

dB

Typ

VO = 1 VPP

distortion

Filter Select = 75 MHz

–55

dB

Typ

f = 1 MHz

Filter Select = Bypass

–60

dB

Typ

Monitor Output

VO = 2 VPP

–60

dB

Typ

Filter Select = 9 MHz

80

dB

Typ

Filter Select = 16 MHz

77

dB

Typ

Buffer Output

Filter Select = 35 MHz

75

dB

Typ

Signal to noise ratio

(unified weighting)

Filter Select = 75 MHz

73

dB

Typ

Filter Select = Bypass(3)

66

dB

Typ

Monitor Output

See (3)

71

dB

Typ

(1)

The Min/Max values listed are specified by design only.

(2)

Performance guaranteed by design, characterization, and 3.3V testing only.

(3)

Bandwidth up to 100-MHz, No Weighting, Tilt Null

6

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