Mitsumi MM1394 Ntsc/pal encoder monolithic ic mm1394 Datasheet

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
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
1
GND1
9
NC
17
VIDEO OUT ON/OFF
2
R-Y IN
10
SYNC IN
18
f0
3
B-Y IN
11
NC
19
VCC2
4
Y+S IN
12
VCC1
20
VIDEO OUT
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
NTSC/PAL Encoder MM1394
MITSUMI
Pin Description
Pin no.
Pin name
Function
1
GND1
2
R-YIN
Input pins.
3
B-YIN
Maximum input voltage :
4
Y+SIN
R-Y 1.00VP-P
B-Y 1.27VP-P
Y+S 1.00VP-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 0.4~1.0VP-P
sine wave.
7
NTSC/PAL
Mode setting pin
NTSC : VCC
PAL : PAL
Internal equivalent circuit diagram
NTSC/PAL Encoder MM1394
MITSUMI
Pin no.
8
9
10
Pin name
NC
SYNC IN
Function
OPEN
Composite sync signal
input pin
11
NC
12
VCC1
13
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
Internal equivalent circuit diagram
NTSC/PAL Encoder MM1394
MITSUMI
Pin no.
Pin name
Function
17
VIDEO OUT
Turns VIDEO output ON/OFF
ON/OFF
VIDEO output ON : GND
OFF : VCC
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
23
BOUT
24
GND2
RGB signal output pin
Output stage GND
Internal equivalent circuit diagram
NTSC/PAL Encoder MM1394
MITSUMI
Absolute Maximum Ratings
(Ta=25°C)
Item
Storage temperature
Operating temperature
Power supply voltage
Allowable loss
Symbol
TSTG
TOPR
VCC max.
Pd
Ratings
-40~+125
-20~+75
+7
450
Units
°C
°C
V
mW
Ratings
-20~+75
4.75~5.25
Units
°C
V
Recommended Operating Conditions
Item
Operating temperature
Operating power supply
Electrical Characteristics
Symbol
TOPR
VOPR
(Except where noted otherwise, Ta=25°C, VCC=5.0V)
Measurement
pin
Item
Symbol
Consumption current 1
ICC1
Consumption current 2
ICC2
RGB output characteristics
R output voltage
G output voltage
B output voltage
Rf characteristic
VR
VG
VB
fR
D
C
B
D
Gf characteristic
fG
C
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
CL (R1)
CP (R1)
CL (R2)
CP (R2)
CL (G1)
CP (G1)
CL (G2)
CP (G2)
CL (B1)
CP (B1)
CL (B2)
CP (B2)
td
Burst width
tw
Carrier leak
VL
Phase
V1 : SG3 V2 : SG4 V3 : SG5
SW (1, 0, 0, 0, 0, 0, 0)
V3 : SG2/SG1 V4 : SG6
SW (1, 1, 0, 0, 1, 0, 0)
R, B frequency response Va=2.0V
G frequency response Va=2.9V
A
23
33
43
mA
14
20
26
mA
0.64 0.71 0.78 VP-P
-3.0
dB
2.92
104
2.92
2.56
2.74
241
2.74
119
2.08
347
2.08
13
3.21
114
3.21
2.66
3.02
251
3.02
129
2.29
357
2.29
23
V1 : SG3 V2 : SG4 V3 : SG5
V4 : SG6 V5 : SG8
6
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)
7
0.4
0.6
0.75
µS
2.3
2.55
3.0
µS
30
mVP-P
V1, 2, 3 : no signal
V4 : SG9 V5 : SG8
SW (1, 0, 0, 0, 0, 0, 0)
8.5
10.5
dB
*
A
Min. Typ. Max. Units
1
2.62
94
2.62
2.46
2.46
231
2.46
109
1.87
337
1.87
3
A
*
deg
deg
deg
deg
deg
deg
*
Oscillation circuit
Gain
Measurement conditions
SW conditions
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)
Gain
E
P
9.5
65
deg
NTSC/PAL Encoder MM1394
MITSUMI
Input Conditions
Symbol
Signal
SG1
sine wave 0.7VP-P f=200kHz
SG2
sine wave 0.7VP-P f=5kHz
SG3
color bar R-Y signal 1VP-P
SG4
color bar B-Y signal 1.27VP-P
SG5
color bar Y+S signal 1VP-P
SG6
sine wave 0.5VP-P f=3.58MHz
SG7
sine wave 0.5VP-P f=4.43MHz
SG8
0.8V-2.0V composite sync signal
SG9
sine wave 30mVP-P f=4.43MHz
SG10
white signal 1161RE
0.500
SG3
0.0
-0.079
-0.421
0.636
SG4
0.0
-0.421
0.714
0.443
SG5
-0.214
0.252
0.054
0.126
0.0
0.0
-0.286
2.0
SG8
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)
CL(R)= ————
CL(b)
CL (g)
CL (r)
CL (bu)
CL (b)
CL(g)
CL(R)= ————
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 BY axis as 0°).
*
R-Y axis
Burst-1
CL (g)
1
2
CL (r)
CL (bu)
B-Y axis
CL(r)
CL(R)= ————
CL(b)
CL(g)
CL(R)= ————
CL(b)
CL(bu)
CL(R)= ————
CL(b)
CL (b)
Burst-2
Note 6 : 6 Burst signal
*
VIDEO OUT
tw
td
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
MITSUMI
Measuring Circuit
NTSC/PAL Encoder MM1394
SW conditions : SW status in the circuit diagram below is SW (0,0,0,0,0,0,0).
MITSUMI
Application Circuits
NTSC mode
NTSC/PAL Encoder MM1394
MITSUMI
Application Circuits
PAL mode
NTSC/PAL Encoder MM1394
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