MITSUMI
NTSC
PAL Converter MM1130
NTSC
PAL Converter
Monolithic IC MM1130
Outline
This is an NTSC/PAL signal switching IC.
In PAL conversion mode, a frequency-converted (fc=4.43MHz) NTSC format chroma signal is phase
converted (R-Y axis component is inverted) every 1 hour by shifting burst signal phase by 45°.
Circuit configuration includes VCO (horizontal sync), VCXO (phase conversion carrier), phase conversion
circuit, switches, amps, etc.
Features
1. PAL conversion with phase conversion performed
2. Two possible phase conversion carriers : crystal oscillation and external input
3. No adjustments
4. Four possible mode selections by CTL and EXT pins
Package
SDIP-22A (MM1130XD)
Applications
1. VCR
Block Diagram
MITSUMI
NTSC
PAL Converter MM1130
Pin Description
Pin no.
1
Pin name
chroma IN
Function
Inputs chroma signal
Internal equivalent circuit diagram
2
CTL
Mode setting pin
3
C.SYNC IN
Inputs composite sync
signal
4
LP2
Time constant connection
pin for H. SYNC APC loop
LPF
5
R
H. SYNC APC feedback pin
6
C2
Pin for connecting H.
SYNC APC free run
frequency setting capacitor
7
BGP ADJ
Fine tuning of position for
sampling burst signal. Use
open.
MITSUMI
NTSC
PAL Converter MM1130
Pin no.
8
Pin name
OUT
Function
Amp output pin
Internal equivalent circuit diagram
9
EXT
Mode setting pin
10
AMP IN
Amp input pin
11
12
GND1
CONV.
OUT
GND pin
Multiplication circuit output
pin
13
V
CC
XT1
V
CC
pin.
Inputs 5V.
Carrier (2fsc) oscillation
circuit output pin
14
15
XT2
Carrier (2fsc) input pin
MITSUMI
NTSC
PAL Converter MM1130
Pin no.
16
Pin name
C1
Function
Carrier APC phase shift pin
Internal equivalent circuit diagram
17
LP1
Time constant connection
pin for carrier APC loop
LPF
18
PS IN2
Carrier APC input pin. Pin
18 input signal burst signal
and carrier signal are
phase locked.a
19
PS IN1
Burst signal phase input
pin during PAL
conversion.
20
S2
Phase shift circuit output
pin. Signal is Pin 21 output
inverted.
21
S1
Phase shift circuit output
pin. Signal is Pin 20 output
inverted.
22
GND2
GND pin
MITSUMI
NTSC
PAL Converter MM1130
Absolute Maximum Ratings
Item
Storage temperature
Operating temperature
Power supply voltage
Allowable loss
(Ta=25°C)
Symbol
T
STG
T
OPR
V
CC
max.
Pd
Ratings
-40~+125
-20~+75
7
600
Units
°C
°C
V
mW
Electrical Characteristics
Item
(Except where noted otherwise, Ta=25°C, V
CC
=5.0V, SW13 : b)
Measurement
circuit
Measurement conditions
Min. Typ. Max. Units
4.7
0.8
-1.0
-5
-1.0
-1.0
-1.0
-1.0
130.0
98.5
235.6
342.6
5.0 5.3
V
29.0 40.0 mA
V
P-P
0
0
0
0
0
0
135.0
103.5
240.6
347.6
1.0
5
1.0
1.0
1.0
1.0
140.0
108.5
245.6
352.6
dB
deg
dB
dB
dB
dB
deg
deg
deg
deg
dB
dB
dB
dB
deg
deg
deg
deg
mV
µS
µS
µS
Symbol
Operating power supply voltage
V
CC
13
SW2, 9, 13 : a, no input
Consumption current
I
CC
Dynamic range
D
Slew mode (SW2 : b, SW9 : a, V
IN
1=SG1, V
IN
3=SG2)
Gain
Gt
8
1
Phase difference
θt
8
2
PAL conversion mode Hn (SW2 : a, SW9 : a, V
IN
1=SG1, V
IN
3=SG2) 3
Burst gain
G1bt
8
1
Red gain
G1r
8
1
Green gain
G1g
8
1
1
Blue gain
G1b
8
Burst phase
θ1bt
8
Red phase
θ1r
8
Green phase
θ1g
8
Blue phase
θ1b
8
PAL conversion mode Hn+1 (SW2 : a, SW9 : a, V
IN
1=SG1, V
IN
3=SG2) 3
Burst gain
G2bt
8
1
Red gain
G2r
8
1
Green gain
G2g
8
1
1
Blue gain
G2b
8
Burst phase
θ2bt
8
Red phase
θ2r
8
Green phase
θ2g
8
Blue phase
θ2b
8
(SW2 : a, SW9 : a, V
IN
1=SG1, V
IN
3=SG2)
4
DC step
V
8
BGP timing
t1
8
5
5
BGP width
t2
8
Hn/Hn+1 switching timing
t3
8
5
VCO (SW2 : a, SW9 : a, V
IN
1 : N0)
Free-running frequency
fo1
6
V
IN
3 : GND
Acquisition range
fc1
6
V
IN
3 : SG3 6
VCXO (SW2 : b, SW9 : b)
*
*
*
*
*
*
*
*
*
*
*
*
-1.0 0
1.0
-1.0 0
1.0
-1.0 0
1.0
-1.0 0
1.0
-145.0 -135.0 -125.0
-113.5 -103.5 -93.5
-250.6 -240.6 -230.6
-357.6 -347.6 -337.6
3.5
3.7
-0.6
4.3
4.5
0.2
40
5.1
5.3
1.0
*
*
*
*
*
14.2 15.7 17.2 kHz
1.5
kHz
8.86 8.86 8.86
MHz
6438 7238 8038
400
Hz
-20
0.7
0.7
1.4
1.4
2.1
2.1
dB
V
V
Free-running frequency
fo2
14
V
IN
1 : No, V
IN
3 : 5.0V
V
IN
1 : SG4, V
IN
3 : SG2
Acquisition range
fc2
14
(SW2 : b, SW9 : b, V
IN
1=SG5, V
IN
3=SG3)
Carrier leak
V
C
1
12
Control pin input resistance (V
IN
1=SG1, V
IN
3=SG2)
CTL pin switching voltage
EXT pin switching voltage
Vt1
Vt2
3
9
*
7
*
8
Lower pin 3 from 5V.
Voltage when pin 8 switches.
Lower pin 9 from 5V.
Voltage when pin 8 switches.
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