Datasheet MM1394 Datasheet (MITSMI)

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MITSUMI

NTSC/PAL Encoder MM1394

NTSC/PAL Encoder

Monolithic IC MM1394

Outline

This is an encoder IC that converts luminance signal Y, color difference signals R-Y and B-Y to composite
video signals and RGB signals.

Features

1. Operates on 5V single power supply

2. Low power consumption (265mW : video output ON)
(165mW : video output OFF)

3. Supports both NTSC and PAL formats

4. Built-in 75Ω drive output (RGB output, composite output)

5. BPF and DELAY filters built-in

6. Built-in oscillator for subcarrier

7. Built-in video output ON/OFF circuit

Package

SOP-24

Applications

1. Game equipment

2. Digital cameras

3. Other video equipment

MITSUMI

SOP-24

136924587101211

24 20 1723 21 19 18 1622 131415

Block Diagram

NTSC/PAL Encoder MM1394

Pin Assignment

1 GND1 9 NC 17

2 R-Y IN 10 SYNC IN 18 f0

3 B

4 Y+S

5 X' tal OUT 13 Iref 21 B OUT

6 X' tal IN 14 Vref 22 G OUT

7 NTSC/PAL 15 NC 23 R OUT

8 NC 16 NC 24 GND2

-

Y IN 11 NC 19 VCC2

IN 12 VCC1 20 VIDEO OUT

VIDEO

OUT

ON/OFF

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MITSUMI

NTSC/PAL Encoder MM1394

Pin Description

Pin no. Pin name Function Internal equivalent circuit diagram

1 GND1

2 R-YIN Input pins.

3 B

4 Y+S

-

YIN Maximum input voltage :

IN R

-

Y 1.00VP

B-Y 1.27VP

Y+S 1.00VP

-

P

-

P

-

P

(SYNC is 0.286VP

-

P)

DC level for clamp is 2.2V.

5 X' tal OUT Oscillator circuit output pin

6 X' tal in Subcarrier input pin

Input a 0.4~1.0V

P-P

sine wave.

7 NTSC/PAL Mode setting pin

NTSC : V

CC

PAL : PAL

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MITSUMI

NTSC/PAL Encoder MM1394

Pin no. Pin name Function Internal equivalent circuit diagram

8

NC OPEN

9

10 SYNC IN Composite sync signal

input pin

11 NC OPEN

12 VCC1

13 Iref

Determines internal

reference current.

Connect a 47kΩ resistor

between this pin and GND.

14 Vref Internal reference voltage

pin

Reference voltage : 4V

Connect a 10µF capacitor

between this pin and GND.

15

16

NC OPEN

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NTSC/PAL Encoder MM1394

Pin no. Pin name Function Internal equivalent circuit diagram

17 VIDEO OUT

Turns VIDEO output ON/OFF

ON/OFF VIDEO output ON : GND

OFF : V

CC

18 f0 Determines f0 for filter and

delay circuits.

NTSC : 20k

PAL : 16k

19 VCC2

Output stage power supply

20 VIDEO OUT Composite video signal

output pin

Can drive 75Ω load.

21 BOUT

22 GOUT RGB signal output pin

23 B

OUT

24 GND2 Output stage GND

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NTSC/PAL Encoder MM1394

Absolute Maximum Ratings

(Ta=25°C)

Item Symbol Ratings Units

Storage temperature T

Operating temperature T

Power supply voltage V

CC max. +7 V

Allowable loss Pd 450 mW

Recommended Operating Conditions

Item Symbol Ratings Units

Operating temperature T

Operating power supply V

Electrical Characteristics

Item

Consumption current 1 I

Consumption current 2 I

RGB output characteristics

R output voltage VR D
G output voltage VG C
B output voltage VB B
Rf characteristic fR D

Gf characteristic fG C SW (1, 1, 0, 0, 1, 0, 0)

Bf characteristic fB B

Red-1 level ratio

Red-1 phase

Red-2 level ratio

Red-2 phase

Green-1 level ratio

Green-1 phase

Green-2 level ratio

Green-2 phase

Blue-1 level ratio

Blue-1 phase

Blue-2 level ratio

Blue-2 phase

NTSC / PAL

Burst position td

Burst width tw

Carrier leak VL A V4 : SG6 V5 : SG8 30

Oscillation circuit

(Except where noted otherwise, Ta=25°C, VCC=5.0V)

Symbol

Measurement

pin

CC1

CC2

CL (R1)
CP (R1)
CL (R2)

CP (R2)
CL (G1)
CP (G1)
CL (G2)

A

CP (G2)

CL (B1)

CP (B1)

CL (B2)

CP (B2)

A V4 : SG6 V5 : SG8

STG

OPR

OPR
OPR 4.75~5.25 V

-

40~+125 °C

-

20~+75 °C

-

20~+75 °C

Measurement conditions

SW conditions Min. Typ. Max. Units

SW (S1,S2,S3,S4,S5,S6,S7)

V4 : SG6 V5 : SG8

SW (0, 0, 0, 0, 0, 0, 0)

V4 : SG6 V5 : SG8

SW (0, 0, 0, 0, 0, 1, 0)

V1 : SG3 V2 : SG4 V3 : SG5

SW (1, 0, 0, 0, 0, 0, 0)

0.64 0.71 0.78 V

V3 : SG2/SG1 V4 : SG6

R, B frequency response Va=2.0V

-

G frequency response Va=2.9V

*

2.62 2.92 3.21

2.62 2.92 3.21

2.46 2.56 2.66

2.46 2.74 3.02
231 241 251

2.46 2.74 3.02
109 119 129

1.87 2.08 2.29
337 347 357

1.87 2.08 2.29

V1 : SG3 V2 : SG4 V3 : SG5

SW (1, 0, 0, 0, 0, 0, 0)

V1, 2, 3 : no signal

*

6

0.4 0.6 0.75 µS

2.3 2.55 3.0 µS

SW (1, 0, 0, 0, 0, 0, 0) *7

23 33 43 mA

14 20 26 mA

P-P

3.0 dB

1

94 104 114

deg

deg

deg

deg

deg

31323

deg

mV

P-P

Gain Gain E V1, 2, 3 : no signal 8.5 9.5 10.5 dB

V4 : SG9 V5 : SG8

SW (1, 0, 0, 0, 0, 0, 0)Phase P 65 deg

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YL (W)

YL (G)

YL (R)

YL (B)

Y (S)

Input Conditions

NTSC/PAL Encoder MM1394

Symbol Signal

SG1 sine wave 0.7V

SG2 sine wave 0.7V

SG3 color bar R

P-P f=200kHz

P-P f=5kHz

-

Y signal 1VP

-

SG4 color bar B-Y signal 1.27VP

SG5 color bar Y+S signal 1VP

SG6 sine wave 0.5VP

SG7 sine wave 0.5V

SG8 0.8V

-

2.0V composite sync signal

SG9 sine wave 30mV

-

P f=3.58MHz

P-P f=4.43MHz

P-P f=4.43MHz

SG10 white signal 1161RE

0.500

SG3

SG4

0.0

0.0

0.714

-

0.421

-

0.443

0.421

-

0.214

0.252

-

0.079

0.636

SG5

0.126

SG8

0.0 0.0

-

0.286

2.0

4.5µS
84µS

P

-

P

0.054

-

P

Note 1 : *1 Frequency response is calculated at 20Log (5MHz output voltage/200kHz output 5MHz).

Note 2 :

Note 3 :

2 Luminance level measurement

*

3 Frequency response is calculated at 20Log (5MHz output voltage/200kHz output 5MHz).

*

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CL (b)

CL (r)

CL (bu)

CL (g)

CL (b)

CL (r)

CL (bu)

CL (g)

2

1

R-Y axis

B

-

Y axis

Burst-1

Burst-2

VIDEO OUT

t d

t w

Burst

EVEN

ODD

52.15µS

0.829V
(1161RE)

63.56µS

-

0.286V

SG10

4.88µS

NTSC/PAL Encoder MM1394

Note 4 :

Note 5 :

Note 6 :

4 Chroma signal measurement (NTSC mode)

*

Chroma level ratio is the ratio between each color signal level and burst signal level.
Each color phase is 180° from burst signal phase (given B-Y axis as 0°).

CL(r)

CL(b)
CL(g)

CL(b)

CL(bu)

CL(b)

5 Chroma signal measurement (PAL mode)

*

CL(R)= ————

CL(R)= ————

CL(R)= ————

Assume burst 135° side signal as color-1, and burst 225° side signal as color-2.
Phase measurement is done assuming the middle of burst-1 and burst-2 phase as 180° (given B­Y axis as 0°).

6 Burst signal

*

CL(R)= ————

CL(R)= ————

CL(R)= ————

CL(r)

CL(b)
CL(g)

CL(b)

CL(bu)

CL(b)

Note 7 :

Note 8 :

7 3.58MHz component level for RGB input no signal.

*

8 Input dynamic range measurement

*

Input the signal shown below and measure video output sync level. Sync level between

0.26~0.33V is acceptable.

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NTSC/PAL Encoder MM1394

Measuring Circuit

SW conditions : SW status in the circuit diagram below is SW (0,0,0,0,0,0,0).

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Application Circuits

NTSC mode

NTSC/PAL Encoder MM1394

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MITSUMI

Application Circuits

PAL mode

NTSC/PAL Encoder MM1394