Datasheet MM1024AF Datasheet (MITSMI)

MITSUMI

S Video Amplifier MM1024

S Video Amplifier

Monolithic IC MM1024

Outline

This is a video amp IC that supports S and also has border and superimpose functions.
Amp gain is as follows : 6dB for Y signal amplification, 10dB for C signal amplification and 6dB for composite

signal amplification. A 75Ω driver is built in.

Features

1. Supports S-VHS

2. Built-in superimpose function (character and border levels)

3. Built-in Y-C mix circuit

4. Vertical/horizontal sync signal output pin

5. Amp gain : 6dB for Y signal, 10dB for C signal and 6dB for composite signal

6. Built-in clamp circuit (for Y signal only)

7. 75Ω driver built in

8. Frequency response Y : 7MHz
C : 5MHz

9. Power supply voltage 4.7V~5.3V

Package

SOP-16A (MM1024AF)

Applications

1. TV

2. VCR

3. VCR with camera

4. Other video equipment

MITSUMI

Block Diagram

S Video Amplifier MM1024

Pin Description

Pin no. Pin name Function

1 R
2 C
3 PB
4 V
5 PB
6 Chroma mute input Chroma mute signal input pin
7 C
8 GND

9 SUG Anti-sag pin
10 V
11 Y
12 SUG Anti-sag pin
13 Character input Character input pin for superimpose
14 Bordering input Bordering input pin
15 Y
16 V

Integrates sync signal and inputs to Schmidt circuit

IN Chroma signal input pin for other than playback

SYNC OUT Vertical sync signal output pin

IN Chroma signal input pin for playback

HROMA OUT Chroma signal output pin

IDEO OUT Composite video signal output pin

OUT Y (luminance) signal output pin

RO VIDEO IN Luminance or video signal input pin

CC

Absolute Maximum Ratings

Item Symbol Ratings Units

Storage temperature T

Operating temperature T

Power supply voltage V

Allowable loss P

(Ta=25°C)

STG

OPR

CC max. 7 V

d 350 mW

-

40~+125 °C

-

20~+75 °C

MITSUMI

S Video Amplifier MM1024

Electrical Characteristics

Item

Operating power supply voltage

(Except where noted otherwise, Ta=25°C, VCC=5.0V, pulse level 0V, SW1 : A, SW2 :

Symbol

VCC VCC 4.7 5.0 5.3 V

Consumption current Id

Y amp output

Voltage gain G

V1 TP11

Differential gain DG1 TP10

Differential phase DP1 TP10

Frequency characteristic fc1 TP11

Video amp output

Voltage gain G

V2 TP8

Differential gain DG2 TP9

Differential phase DP2 TP9

Frequency characteristic fc2 TP8

Chroma amp

Voltage gain G

V3 TP7 SG

Frequency characteristic fc3 TP7

Crosstalk

Crosstalk 1 Y

Crosstalk 2 P

Crosstalk 3 P

Crosstalk 4 P

IN COUT CT1 TP7 SG

B YOUT

B YOUT CT3 TP11

B COUT CT4 TP7 SG

CT2 TP11 SG-2, sine wave, 0.2VP

Superimpose

Edge level Y V

Edge level V V

Character level Y V

Character level V V

EDY TP10

EDV TP9

CHY TP10

CHV TP9

Input threshold voltage

V

Bordering input

Character input V

Chroma mute input

TH1 TP13

TH2 TP12

TH3 TP5

V

Sync separation

V

Sync separation level

Schmitt trigger V

threshold voltage V

Vertical sync output voltage

SEPA TP14

TH4H
TH4L TP1, DC voltage, 5V L

V

VH

V

VL TP1, DC voltage, 0V H

Measurement

circuit

-

TP1

TP3

Measurement conditions Min. Typ. Max. Units

SG-1, SG-2, SG-3 : No signal

Measure with DC ammeter.

SG

-

1, sweep signal

1V

P-P, 0.1MHz

SG

-

1, staircase wave, 1VP

-

P

APL=10, 50, 90%

SG

-

1, staircase wave, 1VP

-

P

APL=10, 50, 90%

SG

-

1, sweep signal, 1VP

-

P

5MHz/0.1MHz *1

SG

-

1 sweep signal

1V

P-P, 0.1MHz

SG

-

1, staircase wave 1VP

-

P

APL=10, 50, 90%

SG

-

1, staircase wave, 1VP

-

P

APL=10, 50, 90%

SG

-

1 sweep signal 1VP

-

P

5MHz/0.1MHz *2

-

2, sine wave, 0.2VP

SG

-

2, sine wave, 0.2VP

-

P, 0.1MHz 9.0 10.0 11.0 dB

-

P

5MHz/0.1MHz *3

-

1, sine wave, 1.0VP

SG

-

3, sine wave, 0.2VP

SW2 : A

-

1, sine wave,0.2VP

-

P, 4MHz

-

P, 4MHz

-

P, 4MHz

3

*

-

P, 4MHz

*

*
*

2
3

4

SG-1, staircase wave (no chroma signal)

1VP

-

P, TP13, pulse level, 5V

SG-1, staircase wave (no chroma signal)

1VP

-

P, TP13, pulse level, 5V

SG-1, staircase wave (no chroma signal)

1VP

-

P, TP12, 13, pulse level, 5V

SG-1, staircase wave (no chroma signal)

1VP

-

P, TP12, 13 pulse level 5V

SG-1, staircase wave (no chroma signal)

1V

P-P

, TP13, pulse level, L H *5

SG-1, staircase wave (no chroma signal)

1V

P-P

TP12, 13, pulse level, L H *5

SG-2, sine wave, 0.1V

P-P

, 4MHz

TP5, pulse level, L H *6

SG-1, staircase wave (no chroma signal) 1V

SG-1,

SYNC level, max min *7

TP1, DC voltage, 0V H

TP1, DC voltage, 5V L

P-P

8 1.9 2.1 2.3 V

*

8 1.1 1.3 1.5 V

*

9 4.8 5.0 V

*

9 0.2 0.4 V

*

25.0 33.0 mA

5.5 6.0 6.5 dB

1.0 3.0 %

1.0 3.0 deg

-

1.0 0 1.0 dB

5.5 6.0 6.5 dB

1.0 3.0 %

1.0 3.0 deg

-

1.0 0 1.0 dB

-

1.0 0 1.0 dB

-

36-30 dB

-

42-36 dB

-

42-36 dB

-

50-40 dB

0 5 10 IRE

0 5 10 IRE

60 65 70 IRE

60 65 70 IRE

0.7 1.4 2.1 V

0.7 1.4 2.1 V

0.7 1.4 2.1 V

55 110 165 mV

MITSUMI

S Video Amplifier MM1024

Notes :

1 1.Voltage gain GV1, GV2, GV3

*

Given SG-1 input as V1 and TP11 output signal as V2, G
The same applies for G

GV1=20LOG [dB]

2.Frequency response f
For the same conditions as the G
for 5MHz as V1, Fc1 is obtained as follows. The same applies for fc2 and fc3.

fc1=20LOG [dB]

2 Crosstalk YIN COUT CT1

*

Given TP14 input signal as V5 and TP7 output signal as V6, CT1 is obtained as follows.

C

T1=20LOG [dB]

3 Crosstalk PB, PB YOUT CT2, CT3

*

Give TP2 and TP4 input signals as V7, and TP11 output signal as V8, C
as follows.

V2 and GV3.

V2
V1

C1, fC2, fC3

V1 measurement, given TP11 output for 0.1MHz as V3, and

V4
V3

V6
V5

V1 is obtained as follows.

T2 and CT3 are obtained

C

T2=20LOG [dB]

1.When C is input to compare between Y
portion from crosstalk.

4 Crosstalk PB COUT CT4

*

Given TP4 input signal as V9 and TP7 output signal as V10, CT4 is obtained as follows.

C

T4=20LOG [dB]

5 Input threshold voltage Bordering input, character input VTH1, VTH2

*

For the same conditions as V
gradually. TP13 and TP12 pulse levels when bordering signal and character signal appear on
TP11 are, respectively, V

6 Input threshold voltage Chroma mute input VTH3

*

Gradually raise TP5 pulse level. TP5 pulse level when a sine wave is no longer output on TP7 is
V

TH3.

7 Sync separation level VSEPA

*

Gradually reduce SG-1 SYNC level from maximum to minimum. Measure the SYNC signal
level at TP14 when a sync separation signal is no longer output on TP15 to obtain V

V8
V7

IN COUT and CIN YOUT, subtract the 4dB amp

V10

V9

EDY and VCHY measurement, raise TP13 and TP12 pulse levels

TH1 and VTH2.

SEPA.

8 Schmidt trigger threshold level VTH4H, VTH4L

*

Impress external DC voltage on TP1 and gradually raise from 0V. TP1 level when TP3 level
goes from high to low is V
low to high is V

9 Vertical sync output voltage VVH, VVL

*

TP3 low level for TTH4H measurement is VVL, and TP3 high level for VTH4L is Vvh.

TH4L.

TH4H. Gradually lower from 5V. TP1 level when TP3 level goes from

MITSUMI

Measuring Circuit

S Video Amplifier MM1024

Application Circuits