MITSMI MM1109XS Datasheet

MITSUMI

No-adjustment Sync Separator MM1109

No-adjustment Sync Separator

Monolithic IC MM1109

Outline

This IC is the same as MM1108, a no-adjustment sync separator IC, with the addition of a composite sync
output pin.

Features

1. Low current consumption 4.4mA typ.

2. Open collector output

3. Built-in 3V regulator handles power supply ripple

4. Built-in capacitor for vertical sync separation

5. Time from vertical signal to H. SYNC output re-sync reduced (relative to LVA519)

6. Supports both PAL and NTSC formats

7. Sync separation level can be adjusted with external constants

8. Composite sync signal output pin

Package

SIP-9B (MM1109XS)

Applications

1. TV

2. VCR

3. VCR with camera

Equivalent Circuit Diagram

MITSUMI

No-adjustment Sync Separator MM1109

Pin Description

Pin no. Pin name

Internal equivalent circuit diagram

Function

1 VCC

Power supply voltage pin. Impresses 5V.

2 SC

VCC integration pin
Free run frequency determined by external
capacitor between Pin 2 and GND, and external
resistor between Pin 3 and GND.

3 VCO

VCO input pin
Pin 4 output is input via external loop filter.

4 LPF

Phase comparator output pin.

5 GND

GND

6 VIN

Signal input pin
Inputs video signal.

7 V.SYNC

V. SYNC output pin
Outputs vertical sync signal separated from
input video signal.

8 C.SYNC

C. SYNC output pin
Outputs composite signal separated from input
video signal.

9 H.SYNC

H. SYNC output pin
Outputs horizontal sync signal synchronized to
input video signal, except for vertical feedback
interval. For no signal, outputs free run
frequency horizontal sync signal.