MM1394 [MITSUMI]
NTSC/PAL Encoder Monolithic IC MM1394; NTSC / PAL编码器单片IC MM1394
| 型号： | MM1394 |
| 厂家： | 
MITSUMI ELECTRONICS, CORP. |
| 描述： | NTSC/PAL Encoder Monolithic IC MM1394 |
| 文件： | 总11页 (文件大小：211K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NTSC/PAL Encoder MM1394
MITSUMI
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
NTSC/PAL Encoder MM1394
MITSUMI
Block Diagram
Pin Assignment
24 23 22 21 20 19 18 17 16 15 14 13
1
2
3
4
5
6
7
8
9 10 11 12
SOP-24
NC
1
2
3
4
5
6
7
8
GND1
9
17
18
19
20
21
22
23
24
VIDEO OUT ON/OFF
R-Y IN
10
11
12
13
14
15
16
SYNC IN
NC
f0
VCC2
B-Y IN
Y+S IN
VCC1
Iref
VIDEO OUT
B OUT
X' tal OUT
X' tal IN
Vref
NC
G OUT
NTSC/PAL
NC
R OUT
NC
GND2
NTSC/PAL Encoder MM1394
MITSUMI
Pin Description
Pin no.
Pin name
GND1
Function
Internal equivalent circuit diagram
1
2
3
4
R
-YIN
Input pins.
Maximum input voltage :
B-YIN
Y+SIN
R
B
-
-
Y 1.00VP
-P
Y 1.27VP
-P
Y+S 1.00VP
-P
(SYNC is 0.286VP
-P)
DC level for clamp is 2.2V.
5
6
7
X' tal OUT
Oscillator circuit output pin
X' tal in
Subcarrier input pin
Input a 0.4~1.0VP
sine wave.
-P
NTSC/PAL
Mode setting pin
NTSC : VCC
PAL : PAL
NTSC/PAL Encoder MM1394
MITSUMI
Pin no.
Pin name
Function
Internal equivalent circuit diagram
8
9
NC
OPEN
10
SYNC IN
Composite sync signal
input pin
11
12
13
NC
VCC1
Iref
OPEN
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
NTSC/PAL Encoder MM1394
MITSUMI
Pin no.
17
Pin name
Function
Internal equivalent circuit diagram
VIDEO OUT
ON/OFF
Turns VIDEO output ON/OFF
VIDEO output ON : GND
OFF : VCC
18
f0
Determines f0 for filter and
delay circuits.
NTSC : 20k
PAL : 16k
19
20
VCC2
Output stage power supply
Composite video signal
output pin
VIDEO OUT
Can drive 75Ω load.
21
22
23
BOUT
GOUT
BOUT
RGB signal output pin
24
GND2
Output stage GND
NTSC/PAL Encoder MM1394
MITSUMI
(Ta=25°C)
Absolute Maximum Ratings
Item
Symbol
Ratings
-40~+125
Units
°C
°C
V
mW
Storage temperature
Operating temperature
Power supply voltage
Allowable loss
TSTG
TOPR
VCC max.
Pd
-20~+75
+7
450
Recommended Operating Conditions
Item
Symbol
Ratings
Units
°C
V
Operating temperature
Operating power supply
TOPR
VOPR
-20~+75
4.75~5.25
(Except where noted otherwise, Ta=25°C, VCC=5.0V)
Electrical Characteristics
Measurement conditions
Measurement
Item
Symbol
ICC1
SW conditions
SW (S1,S2,S3,S4,S5,S6,S7)
V4 : SG6 V5 : SG8
Min. Typ. Max. Units
pin
Consumption current 1
Consumption current 2
23
14
33
20
43 mA
26 mA
SW (0, 0, 0, 0, 0, 0, 0)
V4 : SG6 V5 : SG8
SW (0, 0, 0, 0, 0, 1, 0)
ICC2
RGB output characteristics
R output voltage
VR
VG
VB
fR
D
C
B
D
V1 : SG3 V2 : SG4 V3 : SG5
SW (1, 0, 0, 0, 0, 0, 0)
G output voltage
B output voltage
Rf characteristic
0.64 0.71 0.78 VP
-P
V3 : SG2/SG1 V4 : SG6
SW (1, 1, 0, 0, 1, 0, 0)
Gf characteristic
fG
C
-3.0
dB
R, B frequency response Va=2.0V
Bf characteristic
fB
B
G
frequency response Va=2.9V
1
*
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
CL (R1)
CP (R1)
CL (R2)
CP (R2)
CL (G1)
CP (G1)
CL (G2)
CP (G2)
CL (B1)
CP (B1)
CL (B2)
CP (B2)
2.62 2.92 3.21
94 104 114
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
deg
deg
deg
deg
deg
deg
A
Blue-2 level ratio
Blue-2 phase
NTSC / PAL
3
13
23
V1 : SG3 V2 : SG4 V3 : SG5
V4 : SG6 V5 : SG8
Burst position
td
0.4 0.6 0.75 µS
2.3 2.55 3.0 µS
A
A
Burst width
tw
SW (1, 0, 0, 0, 0, 0, 0)
V1, 2, 3 : no signal
V4 : SG6 V5 : SG8
SW (1, 0, 0, 0, 0, 0, 0)
6
*
Carrier leak
VL
30 mV
P-P
7
*
Oscillation circuit
Gain
Gain
E
P
V1, 2, 3 : no signal
V4 : SG9 V5 : SG8
SW (1, 0, 0, 0, 0, 0, 0)
8.5 9.5 10.5 dB
65 deg
Phase
NTSC/PAL Encoder MM1394
MITSUMI
Input Conditions
Symbol
SG1
SG2
SG3
SG4
SG5
SG6
SG7
SG8
SG9
SG10
Signal
sine wave 0.7VP P f=200kHz
sine wave 0.7VP P f=5kHz
color bar R Y signal 1VP
color bar B Y signal 1.27VP
color bar Y+S signal 1VP
-
-
-
-
-P
-P
-P
sine wave 0.5VP-P f=3.58MHz
sine wave 0.5VP-P f=4.43MHz
0.8V
sine wave 30mVP
white signal 1161RE
-2.0V composite sync signal
-P f=4.43MHz
0.500
SG3
SG4
0.0
-
0.079
-
0.421
0.636
0.0
0.714
-
0.214
-
0.421
0.443
0.252
0.054
0.126
SG5
SG8
0.0
0.0
-
0.286
2.0
4.5µS
84µS
Note 1 : 1 Frequency response is calculated at 20Log (5MHz output voltage/200kHz output 5MHz).
*
Note 2 : 2 Luminance level measurement
*
YL (W)
YL (G)
YL (R)
YL (B)
Y (S)
Note 3 : 3 Frequency response is calculated at 20Log (5MHz output voltage/200kHz output 5MHz).
*
NTSC/PAL Encoder MM1394
MITSUMI
Note 4 : 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)
g
CL(R)= ————
CL(b)
CL ( )
CL (r)
CL (bu)
CL(g)
CL(R)= ————
CL(b)
CL (b)
CL(bu)
CL(R)= ————
CL(b)
Note 5 : 5 Chroma signal measurement (PAL mode)
*
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 B-
Y axis as 0°).
CL(r)
CL(R)= ————
R Y axis
CL(b)
Burst-1
g
CL ( )
CL(g)
CL(R)= ————
CL(b)
CL(bu)
CL(R)= ————
CL(b)
CL (r)
1
2
CL (bu)
B-Y axis
CL (b)
Burst-2
Note 6 : 6 Burst signal
VIDEO OUT
*
t w
t d
Note 7 : 7 3.58MHz component level for RGB input no signal.
*
Burst
EVEN
ODD
Note 8 : 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.
52.15µS
0.829V
(1161RE)
SG10
-0.286V
4.88µS
63.56µS
NTSC/PAL Encoder MM1394
MITSUMI
SW conditions : SW status in the circuit diagram below is SW (0,0,0,0,0,0,0).
Measuring Circuit
NTSC/PAL Encoder MM1394
MITSUMI
Application Circuits
NTSC mode
NTSC/PAL Encoder MM1394
MITSUMI
Application Circuits
PAL mode
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