MC1377P View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC1377P Datasheet PDF : 18 Pages
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MC1377
ELECTRICAL CHARACTERISTICS (VCC = 12 Vdc, TA = 25°C, circuit of Figure 7, unless otherwise noted.)
Characteristics
Pins
Symbol
Min
Typ
Max
VIDEO INPUT
R, G, B Input DC Levels
3, 4, 5
RGB
2.8
3.3
3.8
R, G, B Input for 100% Color Saturation
–
1.0
–
R, G, B Input: Resistance
R, G, B Input: Capacitance
Sync Input Resistance (1.7 V < Input < 8.2)
RRGB
8.0
10
17
CRGB
–
2.0
–
2
Sync
–
10
–
COMPOSITE VIDEO OUTPUT
Composite Output,
100% Saturation
(see Figure 8d)
Sync
Luminance
Chroma
Burst
9
CVout
–
0.6
–
–
1.4
–
–
1.7
–
–
0.6
–
Output Impedance (Note 1)
Rvideo
–
50
–
Subcarrier Leakage in Output (Note 2)
Vlk
–
20
–
NOTES: 1. Output Impedance can be reduced to less than 10 Ω by using a 150 Ω output load from Pin 9 to ground. Power supply current will
increase to about 60 mA.
2. Subcarrier leakage can be reduced to less than 10 mV with optional circuitry (see Figure 12).
Unit
Vdc
Vpp
kΩ
pF
kΩ
Vpp
Ω
mVpp
PIN FUNCTION DESCRIPTIONS
Symbol
Pin
Description
tr
1
External components at this pin set the rise time of the internal ramp function generator (see Figure 10).
Sync
2
Composite sync input. Presents 10 kΩ resistance to input.
R
G
B
–Yout
Vclamp
–Yin
CVout
ChromaIn
B–Yclamp
3
Red signal input. Presents 10 kΩ impedance to input. 1.0 Vpp required for 100% saturation.
4
Green signal input. Presents 10 kΩ impedance to input. 1.0 Vpp required for 100% saturation.
5
Blue signal Input. Presents 10 kΩ impedance to input. 1.0 Vpp required for 100% saturation.
6
Luma (–Y) output. Allows external setting of luma delay time.
7
Video Clamp pin. Typical connection is a 0.01 µF capacitor to ground.
8
Luma (–Y) input. Presents 10 kΩ input impedance.
9
Composite Video output. 50 Ω output impedance.
10
Chroma input. Presents 10 kΩ input impedance.
11
B–Y clamp. Clamps B–Y during blanking with a 0.1 µF capacitor to ground.
Also used with R–Y clamp to null residual color subcarrier in output.
R–Yclamp
12
R–Y clamp. Clamps R–Y during blanking with a 0.1 µF capacitor to ground.
Also used with B–Y clamp to null residual color subcarrier in output.
ChromaOut
13
Chroma output. 50 Ω output impedance.
VCC
14
Power supply pin for the IC; +12, ± 2.0 V, required at 35 mA (typical).
Gnd
15
Ground pin.
VB
Oscin
16
8.2 V reference from an internal regulator capable of delivering 10 mA to external circuitry.
17
Oscillator input. A transistor base presents 5.0 kΩ to an external subcarrier input, or is available for
constructing a Colpitts oscillator (see Figure 4).
Oscout
18
Oscillator output. The emitter of the transistor, with base access at Pin 17, is accessible for completing the
Colpitts oscillator. See Figure 4.
∅m
19
Quad decoupler. With external circuitry, R–Y to B–Y relative angle errors can be corrected. Typically,
requires a 0.01 µF capacitor to ground.
NTSC/PAL
Select
20
NTSC/PAL switch. When grounded, the MC1377 is in the NTSC mode; if unconnected, in the PAL mode.
MOTOROLA ANALOG IC DEVICE DATA
3
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