HMP8156 Просмотр технического описания (PDF) - Intersil

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производитель

HMP8156

NTSC/PAL Encoder

Intersil 

HMP8156

Electrical Specifications

PARAMETER

VAA = +5V ±5%, RSET = 124Ω, VREF_IN = 1.225V, Unless otherwise specified (Continued)

TEST CONDITION

MIN

TYP

MAX UNITS

CLK2 High Time, CLK2H

CLK2 Low Time, CLK2L

CLK to CLK2 Setup Time, CLKSU

CLK to CLK2 Hold Time, CLKH

AC PARAMETERS, PIXEL INTERFACE - OUTPUTS

13.6

-

20.3

ns

13.6

-

20.3

ns

6

-

-

ns

0

-

-

ns

Control Output Delay, TD

CLK2 to CLK Output Delay, CLKD

AC PARAMETERS, I2C INTERFACE

All AC and DC parameters meet the fast-mode I2C Bus Interface specification.

3

-

12

ns

0

-

12

ns

RESET* Pulse Width Low, TRES

4

-

-

CLK

Cycles

POWER SUPPLY CHARACTERISTICS

DAC PSRR at DC

Note 4

-

50

-

dB

Power Supply Range, VAA

Normal Supply Current, IAA

Power-Down Supply Current, IAA

Power Dissipation

Note 3

4.75

5.0

5.25

V

-

-

260

mA

-

-

750

µA

-

1100

1300

mW

NOTES:

2. Output level is dependent on the voltage on VREF, the value of RSET, and the load.

3. If using an external voltage reference, it is not powered down. The internal voltage reference is always powered down.

4. The supply voltage rejection is the relative variation of the full-scale output driving a 37.5Ω load for a ±0.5% supply variation:

PSRR = 20 x log (∆VAA/∆VOUT).

Typical Performance Curves

0.0

-5.0

-10.0

-15.0

-20.0

-25.0

-30.0

-35.0

-40.0

-45.0

-50.0

-55.0

-60.0

-65.0

-70.0

-75.0

-80.0

-85.0

-90.0

-95.0

-100.0

FIELD = 1 LINE = 47

AMPLITUDE (0dB = 714mVP-P)

BANDWIDTH 10kHz TO FULL

Wfm ---> PEDESTAL

NOISE LEVEL = -79.9dB RMS

1.0

2.0

3.0

4.0

5.0

AVERAGE

(MHz)

FIGURE 17. NOISE SPECTRUM (NTSC)

APL = 44.3%

SYSTEM LINE L 47 F1

ANGLE (DEG) 0.0

GAIN x1.000

0.000dB

525 LINE NTSC

BURST FROM SOURCE

SETUP 7.5%

FIGURE 18. NTSC COLOR BAR VECTOR SCOPE PLOT

26

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