CS4955-CQ Просмотр технического описания (PDF) - Cirrus Logic

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CS4955-CQ

NTSC/PAL Digital Video Encoder

Cirrus Logic 

CS4954 CS4955

1. CHARACTERISTICS AND SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS

AC & DC PARAMETRIC SPECIFICATIONS (AGND,DGND = 0 V, all voltages with respect to 0 V)

Parameter

Symbol

Min

Max

Units

Power Supply

VAA/VDD -0.3

6.0

V

Input Current Per Pin (Except Supply Pins)

-10

10

mA

Output Current Per Pin (Except Supply Pins)

-50

+50

mA

Analog Input Voltage

-0.3 VAA + 0.3

V

Digital Input Voltage

-0.3 VDD + 0.3

V

Ambient Temperature Power Applied

-55

+ 125

°C

Storage Temperature

-65

+ 150

°C

WARNING: Operating beyond these limits can result in permanent damage to the device. Normal operation is not

guaranteed at these extremes.

RECOMMENDED OPERATING CONDITIONS (AGND,DGND = 0 V, all voltages with respect to 0 V.)

Parameter

Power Supplies: Digital Analog

Operating Ambient Temperature

Symbol Min Typ Max

VAA/VDD 3.15 3.3 3.45

4.75 5.0 5.25

TA

0 + 25 + 70

Units

V

°C

Note: Operation outside the ranges is not recommended.

DC CHARACTERISTICS (TA = 25° C; VAA, VDD = 5 V; GNDA, GNDD = 0 V.)

Parameter

Symbol Min Typ

Digital Inputs

High level Input Voltage

V [7:0], PDAT [7:0], Hsync/Vsync/Field/CLKIN

VIH

2.2

-

High Level Input Voltage I2C

VIH 0.7 VDD -

Low level Input Voltage All Inputs

-

-0.3

-

Input Leakage Current

-

-10

-

Digital Outputs

High Level Output Voltage lo = -4 mA

VOH

2.4

-

Low level Output Voltage lo = 4 mA

VOL

-

-

Low Level Output Voltage SDA pin only, lo = 6mA

VOL

-

-

Output Leakage Current High -Z Digital Outputs

-

-10

-

Max Units

VDD+0.3 V

-

V

0.8

V

+10

µA

VDD

V

0.4

V

0.4

V

+ 10

µA

DS278PP4

5

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