STV2145 datasheet(2/17 Pages) STMICROELECTRONICS

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PIN DESCRIPTION

Pin N

Name

Function

Description

SCL

Serial Clock for I

2C Bus

Data input (no pull down - capability)

SDA

Serial Data for I

2C Bus

Data input and output (pull down - capability for acknowledge

and data reply)

VRET

Vertical Reset Input

Vertical Synchronization Signal from STV2118A

REG

Control Pin for Regulator

Output for controlling the ext. series regulator transistor

5VCC

Supply Voltage Scanning

Supply voltage of scanning part, connected with external series

regulator transistor

LPF

Loop Filter for PLL

Loop filter for horizontal 2 x FLINE VCO

CVERT

Vertical AGC Capacitor

Regulation of vertical saw tooth amplitude

GND

Ground

BREATH

Breathing Input

Input voltage = 1 to 7.8V = vertical size compensation

HFLY

Horizontal Flyback Input

Voltage input for horizontal flyback, polarity positive

OBLK

Oversize Blanking Signal

Oversize blanking output :

- open collector output : high ohmic = blanking

- low (transistor saturated) = no blanking

EWIN

East-West Input

Input of the error amplifier for the East-West modulator

EWOUT

East-West Output

Output of the error amplifier for the East-West modulator

(current output, biasing directly the darlington output transistor)

FROUT

Output for Frame Amplifier

Output of transconductance amplifier, pin has to be connected

to the inverting input of the vertical power amplifier

SENSP

Sense Input, Positive

Input of internal resistor bridge for sensing the vertical

deflection YOKE current

SENSM

Sense Input, Negative

Input of internal resistor bridge for sensing the vertical

deflection YOKE current

STV2145

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