Motorola MC13077DW, MC13077P Datasheet

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The MC13077 is a high quality RGB/YUV to NTSC/PAL encoder with
Composite Video and S–Video outputs. The IC integrates the color
difference and luma matrix circuitry, chroma modulators, subcarrier
oscillator, and logic circuitry to encode component video into a composite
video signal compatible with the NTSC/P AL standards. The IC operates off a
standard + 5.0 V supply and typically requires less than 75 mA, making it
useful in PC environments. The high degree of integration saves board
space and cost, as only passive external components are required for
operation. The IC is manufactured using Motorola’s MOSAIC process and
is available in a 20 pin DIP or SOIC package.

• Single 5.0 V Supply

• Composite Output

• S–Video Outputs

• P AL/NTSC Switchable

• P AL Squarewave Output

• P AL Sequence Resettable

• Internal/External Burst Flag

• Digitally Determined Modulator Axes

• Subcarrier Reference Drive Selectable

Order this document by MC13077/D



ADVANCED

PAL/NTSC ENCODER

SEMICONDUCTOR

TECHNICAL DATA

20

1

DW SUFFIX

PLASTIC PACKAGE

CASE 751D

(SO–20L)

PLASTIC PACKAGE

20

P SUFFIX

CASE 738

1

4x fsc Xtal/

4x fsc Input

14.32/

17.73
20 p

3.58/4.43 MHz
In/ PLL Off

Red In

1.0

µ

Green In

1.0

µ

Blue In

1.0

µ

12

13

14

V

CC
1

4x f

sc

Oscillator

8

45

PLL

LPF

Off

9

Color

Difference

Y

out

R–Y

and

B–Y

Luma

Matrix

Sync

Y

in

10 15 16

Luma Delay

1.2 k

1.2 k

°

R–Y Burst Flag

B–Y Burst Flag

B–Y

Clamp

Simplified Block Diagram

Divide by Four

Ring Counter

0

°

B–Y
Clamp

90

R–Y

Clamp

°

R–Y
Clamp

H/2

R

H

sync

Latch

Sync
Input

Divide by 512

Countdown

Decoder

H

Luma

Clamp

Sync In/

Sync Sep

MC13077DW
MC13077P

PAL

F/F

576

Luma
Clamp

ORDERING INFORMATION

Operating

Device

Gnd

11

Temperature Range

TA = 0° to +70°C

3.58/

4.43

Latch

Burst

Flag

Adjust

PAL/

NTSC

Switch

Chroma Out

Chroma In

18

19

17
20

4

3

2

Plastic DIP

Burst Flag
Out/Force Burst
Flag

PAL Squarewave
Out/ Force NTSC

Chroma

1.0 k
BPF

4.7 n

Chroma

75

S–Video
Luma

S–Video

75

Comp
Video

75

Package

SO–20L

1.1 k

MOTOROLA ANALOG IC DEVICE DATA

 Motorola, Inc. 1996 Rev 2

1

MC13077

MAXIMUM RATINGS

Rating Symbol Value Unit

Supply Voltage V
Storage Temperature T
Operating Junction Temperature T
Operating Ambient Temperature T

CC
stg

J

A

RECOMMENDED OPERATING CONDITIONS

Characteristic Min Typ Max Unit

Supply Voltage 4.5 5.0 5.5 Vdc
Sync Input Threshold Equivalent (See Figure 2) – 1.4 – Vdc

Pulse Width – 4.5 – 5.5 – µs
R, G, B Input (Amplitude for 100% Saturated Video) – 0.7 – Vpp
R–Y Input Amplitude at Pin 16 (for 100% Saturated Video) – 490 – mVpp

B–Y Input Amplitude at Pin 15 (for 100% Saturated Video) – 350 –
Y Input Amplitude (without sync) at Pins 12, 13, 14 (for 100% Saturated Video) – 700 –
Y Input Amplitude (with sync) at Delay Line – 1.0 – Vpp

External 4x Subcarrier Input to Pin 8 (If crystal is not used) – 300 – mVpp
External Subcarrier Input to Pin 9 – 0.10 to 3.0 – Vpp

Lock Range (with 4x Subcarrier Crystal specified) at Subcarrier Frequency – ± 400 – Hz
Burst Flag Input Threshold (Pin 18) – 2.5 – Vdc

NTSC/PAL Select (Pin 19) Vdc

PAL Switching Amplitude: High – 4.0 –

PAL Switching Amplitude: Low – 1.1 –

NTSC Select Threshold – 0.4 –

6.0 V

– 65 to +150 °C

+150 °C

0 to + 70 °C

ELECTRICAL CHARACTERISTICS (T

Characteristic Pin Min Typ Max Unit

Supply Current (150 Ω Load on Output Pins) 1 55 70 85 mA
Color Burst Amplitude 250 300 350 mVpp

Line–to–Line Burst Amplitude Deviation – 7.0 25 mV
Start after leading edge of Sync: NTSC (3.579 MHz)

Start after leading edge of Sync: PAL (4.43 MHz)

Duration: NTSC (3.579 MHz)

Duration: PAL (4.43 MHz)

PAL Burst Phase: Line n

PAL Burst Phase: Line n+1

NTSC Burst Phase 170 180 190
Subcarrier Leakage in Black

White (100% white)

Composite Video Output (100% saturated output)

Sync Amplitude 240 281 320 mVpp
Line–to–Line Sync Amplitude Deviation (PAL) – 7.0 – mV
Luminance Amplitude Error – – 10 %
Line–to–Line Luminance Amplitude Deviation (PAL) 2 – 3.0 – mVpp
Chrominance Amplitude Error (@ 75 Ω – – 10 %
Line–to–Line Chroma Amplitude Deviation (PAL) load) – < 14 – mVpp
Chrominance Phase Error – – 10 Degrees
Line–to–Line Chrominance Phase Error (PAL) – < 5.0 –
Black Level (RGB at Black during Blanking Intervals) – 500 – mV
Sync Tip Clamp Level above Ground 120 200 280

= 25°C, VCC = 5.0 Vdc, test circuit of Figure 1.)

A

2 & 4

(@ 75 Ω

load)

2 & 4

(@ 75 Ω

load)

–
–
–

–
125
215

–

–

5.0 to 5.3

5.4 to 5.6
9

10
135
225

–
–

–
–
–

–
145
235

25
65

Cycles

Degrees

mV

µs

2

MOTOROLA ANALOG IC DEVICE DATA

MC13077

ELECTRICAL CHARACTERISTICS (continued) (T

= 25°C, VCC = 5.0 Vdc)

A

Characteristic Pin Min Typ Max Unit

Luma S–Video Output

Sync Amplitude 240 281 320 mVpp
Line–to–Line Sync Amplitude Deviation (PAL) 3 – 7.0 – mV
Luminance Amplitude Error (@ 75 Ω – – 10 %
Line–to–Line Luminance Amplitude Deviation (PAL) load) – 3.0 – mVpp
Black Level – 500 – mV
Sync Tip Clamp Level above Ground 120 200 280

Chroma S–Video Output

Chrominance Amplitude Error – – 10 %
Line–to–Line Chrominance Amplitude Deviation (PAL) 4 – < 14 – mVpp
Chrominance Phase Error (@ 75 Ω – – 10 Degrees
Black Level load) – 500 – mV

Figure 1. T est Circuit

G

1.0 µF

V

CC

1

4x Subcarrier In

1.0

µ

R

1.0

µ

G

1.0

µ

B

4x f

8

9

12

13

14

sc

Oscillator

45

°

PLL

LPF

Off

R–Y Burst Flag

B–Y Burst

Color

Difference

and

Luma

Matrix

10 15 16

Y

out

1.2 k

R–Y
B–Y

Sync

Luma Delay

1.2 k

Flag

Y

Clamp

in

Divide by Four

Ring Counter

0

°

B–Y

(B–Y) In
10 nF

90

R–Y

Clamp

°

H/2

(R–Y) In
10 nF

R

H

sync

Latch

Sync
Input

Sync In/
Sync Sep

Divide by 512

Countdown

Decoder

H

F/F PAL

Clamp

10 nF

Luma

576

Luma
Clamp

11

3.58/4.43

Switch

Ground

Latch

Burst

Flag

Adjust

PAL/

NTSC

Chroma Out

Chroma In

Burst Flag Out/

18

Force Burst Flag

PAL Squarewave

19

Out/Force NTSC

1.0 k

17
20

4

3

2

Chroma

1.0 nF

75

75

75

BPF

75

75

75

Chroma
S–Video

Luma
S–Video

Comp
Video

1.1 k

MOTOROLA ANALOG IC DEVICE DATA

3

Pin Symbol

1 V

CC

2 Comp

Video

Internal Equivalent

Schematic

Zo = 75

75

Ω

Ω

75

MC13077

PIN DESCRIPTIONS

Description Expected Waveforms

Supply Voltage + 5.0 Vdc ±10%
Composite Video output. The external

75 Ω series resistor determines the
impedance of the output. The output will

Ω

1.0

drive a 75 Ω load through a 75 Ω coax.

Ω

k

1.0 Vpp (75% Color Saturation),

1.23 Vpp (100% Color Saturation) at
the 75 Ω load.

3 Luma

S–Video

4 Chroma

S–Video

5 Luma

Clamp

6 Y

In

75

75

Ω

Ω

Zo = 75

Zo = 75

Luminance S–Video output. The external

Ω

75

Ω

Ω

75

Ω

1.4 V

75 Ω series resistor determines the
impedance of the output. The output will
drive a 75 Ω load through a 75 Ω coax.

1.0

Ω

k

Chrominance S–Video output. The
external 75 Ω series resistor determines
the impedance of the output. The output

1.0

will drive a 75 Ω load through a 75 Ω

Ω

k

coax.

Luminance Output Clamp storage
capacitor. A 0.01 µF capacitor should be
connected from this pin to ground.

Luminance input from the delay line. The
delayed Luma from Pin 10 is applied at
this pin.

1.0 Vpp with sync (100% output) at the
75 Ω load.

885 mVpp (100% output) when at the
75 Ω load.

3.4 Vdc.

500 mVpp of Composite Luma when
100% saturated RGB inputs are applied.

7 Sync In/

Sync Sep

8 4x fsc Xtal

/4x fsc In

9 3.58/

4.43 MHz
In/PLL Off

4

10 k

400

10 k

gm

V

ref

2.0 V

gm

2.0 k

Composite Sync input. Negative going
sync should be applied at this pin. The
input has a threshold of 1.4 V .

V

Four times Subcarrier Frequency Crystal

CC

Oscillator pin. This pin provides for the
connection of the oscillator resonant
element. Pin may also be driven directly
with a 4x subcarrier signal.

External Subcarrier Input. This pin
provides an input to a Phase Detector and
PLL and allows phase–lock of the 4x
oscillator to an external subcarrier
reference. To disable the PLL, this pin
should be grounded. 400 Hz of pull–in and
lock–in range is possible with a crystal.

The peak voltage may not exceed VCC.
Minimum voltage should not be less than
0 V . See Figure 2 for input requirements.

300 to 600 mVpp 4x subcarrier input if
the pin is being externally driven.
Approximately 40 mVpp, if a crystal is
being used.

0.10 to 3.0 Vpp (AC coupled) of
subcarrier to phase–lock 4x oscillator or
grounded to disable the PLL.

MOTOROLA ANALOG IC DEVICE DATA

MC13077

PIN DESCRIPTIONS (continued)

Internal Equivalent

Pin Symbol

10 Y

Out

11 Gnd Ground Ground
12 Red

13 Green
14 Blue
15 B–Y

16 R–Y

In

In

In

Clamp

Clamp

Schematic

10 k

10 k

1.4 V

20 k

V

ref

See Pin 12 Green Video input. 0.7 Vpp AC coupled (100% Color Bars).
See Pin 12 Blue Video input. 0.7 Vpp AC coupled (100% Color Bars).

Luminance Delay Line Drive Output. A
delay should be inserted between this
pin and Pin 6 to match the delay incurred
by the Chroma.

Red Video input. 0.7 Vpp AC coupled (100% Color Bars).

B–Y Clamp storage capacitor. A 0.01 µF
capacitor should be connected from this
pin to ground, unless the pin is used as
an input.

R–Y Clamp storage capacitor. A 0.01 µF
capacitor should be connected from this
pin to ground, unless the pin is used as
an input.

Description Expected Waveforms

1.0 Vpp with sync
(100% saturated Color Bar output).

If not used as an input the pin is clamped
during sync to 2.4 Vdc. Can be used as a
B–Y input (AC coupled, 350 mVpp, 100%
color saturation). Burst Flag, if disabled
at Pin 18, must be inserted here with the
following signal levels; –170 mV (NTSC),
–121 mV (PAL).

If not used as an input the pin is clamped
during sync to 2.4 Vdc. Can be used as a
R–Y input (AC coupled, 490 mVpp, 100%
color saturation). Burst Flag, if disabled
at Pin 18, must be inserted here with the
following signal level; +121 mV for PAL.

17 Chroma

Out

18 Burst Flag

Out/Force
Burst Flag

19 PAL

Square–
wave
Out/Force
NTSC

20 Chroma

In

Internal

Burst

Flag

V

CC

10 k

V

1/2 V

2.0 V

CC

10 k

CC

10 k

1.4 V

Chroma Bandpass Drive Output. 2.8 Vpp (100% Color Bars)

Burst Flag Output Disable and Force pin.
If left unconnected, internally generated
color burst will appear at Pins 2 and 4.
Burst Flag will appear at this pin (18). If
grounded, the Burst Flag will be
disabled. If externally driven from
another source of burst flag, the internal
flags will be overriden.

PAL/NTSC system switch. If grounded,
the MC13077 will encode NTSC, and if
left open, PAL.

Chroma Bandpass input. Output from
chroma bandpass filter should be
applied at this pin.

1.8 Vpp burst flag pulses if unconnected.

In PAL mode, a PAL squarewave
appears at this pin, the phase of which
can be reset by momentarily forcing the
pin to ground during the high state of
the squarewave.

1.4 Vpp (100% Color Bars) with
bandpass filter and 1.0 kΩ matching
resistors.

MOTOROLA ANALOG IC DEVICE DATA

5