TDA9109A datasheet(10/47 Pages) STMICROELECTRONICS

10 / 47 page

TDA9109A

10/47

I2C READ/WRITE

Electrical Characteristics (VDD = 5V, Tamb =25°C)

Note: 1

See also I2C Bus Address Table.

SYNC PROCESSOR

Operating Conditions (VDD = 5V, Tamb =25°C)

Electrical Characteristics (VDD = 5V, Tamb =25°C)

Note: 2

TH is the Horizontal period.

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Units

I2C PROCESSOR (See 1)

Fscl

Maximum Clock Frequency

Pin 30

400

kHz

Tlow

Low period of the SCL Clock

Pin 30

1.3

µs

Thigh

High period of the SCL Clock

Pin 30

0.6

µs

Vinth

SDA and SCL Input Threshold

Pins 30, 31

2.2

VACK

Acknowledge Output Voltage on SDA

input with 3mA

Pin 31

0.4

I2C leak

Leakage current into SDA and SCL

with no logic supply

VDD =0

Pins 30, 31 = 5 V

µA

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Units

HsVR

Voltage on H/HVIN Input

Pin 1

MinD

Minimum Horizontal Input Pulses Du-

ration

Pin 1

0.7

µs

Mduty

Maximum Horizontal Input Signal Duty

Cycle

Pin 1

VsVR

Voltage on VSYNCIN

Pin 2

VSW

Minimum Vertical Sync Pulse Width

Pin 2

µs

VSmD

Maximum Vertical Sync Input Duty Cy-

cle

Pin 2

VextM

Maximum Vertical Sync Width on TTL

H/Vcomposite

Pin 1

750

µs

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Units

VINTH

Horizontal and Vertical Input Logic

Level (Pins 1, 2)

High Level

Low Level

2.2

0.8

RIN

Horizontal and Vertical Pull-Up Resis-

tor

Pins 1, 2

250

Ω

VoutT

Extracted Vsync Integration Time (%

of TH) on H/V Composite (see

C0 = 820pF

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