MM1093PF [MITSUMI]
4fsc Clock Generator; 4fsc的时钟发生器
| 型号： | MM1093PF |
| 厂家： | 
MITSUMI ELECTRONICS, CORP. |
| 描述： | 4fsc Clock Generator |
| 文件： | 总7页 (文件大小：176K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
4fsc Clock Generator MM1093
MITSUMI
4fsc Clock Generator
Monolithic IC MM1093
Outline
This IC generates a clock used for driving the CCD that configures a comb filter for Y/C separation, or for
sampling A/D and D/A converters that configure a digital comb filter.
It has a built-in subcarrier oscillator (3.58MHz or 4.43MHz) synchronized to the input chroma signal, and a
clock oscillator that is 4 times the latter. MM1093ND and NF are available for NTSC format, and MM1093PD
and PF for PAL format.
Features
1. Built-in fsc synchronized to input chroma signal and 4fsc oscillators
2. Reduced number of external parts due to 1 pin VCXO
3. +5V single power supply
Package
SOP-16A (MM1093NF, MM1093PF)
DIP-16B (MM1093ND, MM1093PD)
Applications
1. TV
2. VCR
Equivalent Circuit Diagram
4fsc Clock Generator MM1093
MITSUMI
Pin Description
Pin no.
1
Pin name
Chroma input
Equivalent Circuit Diagram
Pin Description
Chroma signal input pin
2
ACC filter
ACC filter pin
3
APC1 filter
fsc APC circuit filter pin
4
X'tal
VCXO circuit X'tal pin
5
6
7
GND1
GND2
fsc GND pin
4fsc GND pin
fsc output
Outputs subcarrier synchronized to input
chroma signal
NTSC : 3.579545MHz
PAL : 4.433619MHz
4fsc Clock Generator MM1093
MITSUMI
8
9
NC
NC pin
Oscillator R
Connects to resistor that determines 4fsc VCO
free run frequency
10
11
12
VCC1
VCC2
Oscillator C
fsc power supply pin
4fsc power supply in
Connects to capacitor that determines 4fsc
VCO free run frequency
13
APC2 filter
4fsc APC circuit filter pin
Outputs a 4 signal sychronized to input
chroma signal.
14
4fsc output
4fsc Clock Generator MM1093
MITSUMI
15
Burst gate filter
This pin creates burst gate pulse.
16
Composite input
Composite signal input pin
(Ta=25°C)
Absolute Maximum Ratings
Item
Symbol
Ratings
Units
°C
Storage temperature
Operating temperature
Power supply voltage
Allowable loss
TSTG
TOPR
-40~+125
-20~+75
°C
VCC max.
Pd
7
V
350
mW
4fsc Clock Generator MM1093
MITSUMI
(Except where noted otherwise, Ta=25°C, VCC=5.0V, SG1, SG2 : no signal, SW1 : A)
Measurement
Electrical Characteristics
Item
Symbol
Measurement conditions
Min. Typ. Max. Units
circuit
VCC
-
Operating power supply voltage
Consumption current
Sync separation circuit
VCC
ICC
4.7 5.0 5.3
V
24 32 mA
SG2 : 1VP
SG1 : separate chroma signal
SW1 : B
-
P staircase wave
1
*
Sync separation level
VS
TP3
TP1
40
80 120 mV
5
*
PLL circuit
ACC input amplitude range
APC1 frequency
acquisition range
VCO1 free run frequency deviation
SG1 : separate chroma signal *2 *5
VIN
fC
15
560 mV
P-P
SG1 : sine wave 143mVP
-P
400
Hz
SG2 : 1VP
-P staircase wave
3
*
f0
4
-
250
0
250 Hz
*
TP2
TP3
SG1 : separate chroma signal
fSC output level
VO1
0.8 1.0 1.2 VP
-P
SG2 : 1VP
-
P staircase wave
5
*
*
SG1 : separate chroma signal
SG2 : 1VP P staircase wave
fSC output duty
4fSC circuit
DO1
45 50 55 %
-
5
SG1 : separate chroma signal
SG2 : 1VP P staircase wave
SW1 : B
4fSC output level
VO2
DO2
Lfsc
-
0.8 1.0 1.2 VP
-P
5
*
SG1 : separate chroma signal
SG2 : 1VP P staircase wave
SW1 : B
4fSC output DT
-
45
50
55
%
5
*
SG1 : separate chroma signal
SG2 : 1VP P staircase wave
SW1 : B
fSC leakage
-
50
dB
5
*
Notes:
1 Sync separation level
*
Measure the level where SG1 input signal and TP3 output signal synchronize when 1VP
-P staircase wave
sync signal level is raised from 0V.
SG2 : 1VP P staircase wave
-
1VP-P
VS
Hsync
2 ACC input amplitude range
*
*
Defined as separate chroma signal burst signal amplitude that can be input to chroma input.
3 APC1 frequency pull-in range
Defined as the smaller of the differences when input signal frequency is changed from high to fO and from
low to fo when TP2 output is not synchronized to SG1 input signal and when it is synchronized.
4 VCO1 free run frequency deviation
*
*
Defined as the difference between TP2 output signal frequency and fO.
5 The standard for the separate chroma signal is burst signal 143mVP P.
-
4fsc Clock Generator MM1093
MITSUMI
Measuring Circuit
Notes:
1 NTSC : R=5.6k
*
PAL : 4.3k
2 Recommended crystal oscillator
*
Tokyo Dempa, TR-49 or equivalent
NTSC : 3.579545MHz
PAL : 4.433619MHz
3 Use part with precision within 5ꢀ and temperature characteristic
CH.
*
*
4 R and C change according to board floating capacitance, etc.
Select R and C so that Pin 13 voltage is approximately 2V for VCO
lock. Also, C should be 4PF or higher, and R should be 3.3kΩ or
higher.
4fsc Clock Generator MM1093
MITSUMI
Application Circuits
Notes:
1 NTSC : R=5.6k
*
*
PAL : R=4.3k
2 Recommended crystal oscillator
Tokyo Dempa, TR-49 or equivalent
NTSC : 3.579545MHz
PAL : 4.433619MHz
3 Use part with precision within 5ꢀ and temperature characteristic
CH.
*
*
4 R and C change according to board floating capacitance, etc.
Select R and C so that Pin 13 voltage is approximately 2V for VCO
lock. Also, C should be 4PF or higher, and R should be 3.3kΩ or
higher.
5 BPF Reference circuit
*
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