PIN DESCRIPTION

Pin N

°

Name

Function

Description

1

SCL

Serial Clock for I

Data input (no pull down - capability)

2

SDA

Serial Data for I

Data input and output (pull down - capability for acknowledge

and data reply)

3

VRET

Vertical Reset Input

Vertical Synchronization Signal from STV2118A

4

REG

Control Pin for Regulator

Output for controlling the ext. series regulator transistor

Supply Voltage Scanning

Supply voltage of scanning part, connected with external series

regulator transistor

6

LPF

Loop Filter for PLL

7

CVERT

Vertical AGC Capacitor

Regulation of vertical saw tooth amplitude

8

GND

Ground

Ground

9

BREATH

Breathing Input

Input voltage = 1 to 7.8V = vertical size compensation

10

HFLY

Horizontal Flyback Input

Voltage input for horizontal flyback, polarity positive

11

OBLK

Oversize Blanking Signal

Oversize blanking output :

- open collector output : high ohmic = blanking

- low (transistor saturated) = no blanking

12

EWIN

East-West Input

Input of the error amplifier for the East-West modulator

13

EWOUT

East-West Output

Output of the error amplifier for the East-West modulator

(current output, biasing directly the darlington output transistor)

14

FROUT

Output for Frame Amplifier

Output of transconductance amplifier, pin has to be connected

to the inverting input of the vertical power amplifier

15

SENSP

Sense Input, Positive

Input of internal resistor bridge for sensing the vertical

deflection YOKE current

16

SENSM

Sense Input, Negative

Input of internal resistor bridge for sensing the vertical

deflection YOKE current

STV2145

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