MM1109 [MITSUMI]
No-adjustment Sync Separator Monolithic IC; 没有调整同步分离器单片IC
| 型号： | MM1109 |
| 厂家： | 
MITSUMI ELECTRONICS, CORP. |
| 描述： | No-adjustment Sync Separator Monolithic IC |
| 文件： | 总5页 (文件大小：129K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
No-adjustment Sync Separator MM1109
MITSUMI
No-adjustment Sync Separator
Monolithic IC MM1109
Outline
This IC is the same as MM1108, a no-adjustment sync separator IC, with the addition of a composite sync
output pin.
Features
1. Low current consumption
2. Open collector output
4.4mA typ.
3. Built-in 3V regulator handles power supply ripple
4. Built-in capacitor for vertical sync separation
5. Time from vertical signal to H. SYNC output re-sync reduced (relative to LVA519)
6. Supports both PAL and NTSC formats
7. Sync separation level can be adjusted with external constants
8. Composite sync signal output pin
Package
SIP-9B (MM1109XS)
Applications
1. TV
2. VCR
3. VCR with camera
Equivalent Circuit Diagram
No-adjustment Sync Separator MM1109
MITSUMI
Pin Description
Pin no.
Pin name
Internal equivalent circuit diagram
Function
Power supply voltage pin. Impresses 5V.
1
2
VCC
VCC integration pin
SC
Free run frequency determined by external
capacitor between Pin 2 and GND, and external
resistor between Pin 3 and GND.
VCO input pin
3
4
VCO
Pin 4 output is input via external loop filter.
Phase comparator output pin.
LPF
GND
5
6
GND
Signal input pin
VIN
Inputs video signal.
V. SYNC output pin
Outputs vertical sync signal separated from
input video signal.
7
8
9
V.SYNC
C.SYNC
H.SYNC
C. SYNC output pin
Outputs composite signal separated from input
video signal.
H. SYNC output pin
Outputs horizontal sync signal synchronized to
input video signal, except for vertical feedback
interval. For no signal, outputs free run
frequency horizontal sync signal.
No-adjustment Sync Separator MM1109
MITSUMI
(Ta=25°C)
Absolute Maximum Ratings
Item
Symbol
Ratings
-40~+125
Units
°C
Storage temperature
Operating temperature
Power supply voltage
Allowable loss
TSTG
TOPR
-20~+75
°C
VCC max.
Pd
7
V
1100
mW
CC
(Except where noted otherwise, Ta=25°C, V =5.0V, SW1=a, SW2=a)
Electrical Characteristics
Measurement
Item
Symbol
Measurement conditions
Min. Typ. Max. Units
circuit
VCC
Operating power supply voltage VCC
4.5 5.0 5.5
V
Consumption current
Minimum sync separation
operating current
Id
ISEPA
fO
Id
SW1 : b
4.4 7.0 mA
IIN
SW1 : c, VR1 : H
L
1
15
14.7 15.7 16.7 kHz
2.1 2.7 kHz
30
60 uA
*
Free-running frequency
Horizontal sync signal
acquisition range
TP1
TP1
SW1 : b
VIN : signal 1, 15.73kHz
fCAP
SW2 : b
*2 *3
H. sync pulse width
tW1
td1
TP1
TP1
TP1
TP1
TP2
TP2
TP2
TP2
TP3
TP3
TP3
TP3
VIN : signal 1, 15.73kHz
4
4
4
4
4.3 4.7 5.1 uS
-0.3 0.2 0.7 uS
*
H. sync delay time
VIN : signal 1, 15.73kHz
VIN : signal 1, 15.73kHz
VIN : signal 1, 15.73kHz
*
*
*
H. sync output voltage L
H. sync output voltage H
V. sync pulse width
VL1
VH1
tW2
td2
0.2 0.4
4.8 5.0
V
V
VIN : staircase wave 1VP
VIN : staircase wave 1VP
VIN : staircase wave 1VP
VIN : staircase wave 1VP
VIN : staircase wave 1VP
VIN : staircase wave 1VP
VIN : staircase wave 1VP
VIN : staircase wave 1VP
-
-
-
-
-
-
-
-
P
P
P
P
P
P
P
P
5
140 200 260 uS
6.0 10.0 20.0 uS
*
*
*
*
*
*
*
*
V. sync delay time
5
5
5
6
6
6
6
V. sync output voltage L
V. sync output voltage H
C. sync pulse width
VL2
VH2
tW3
tD3
0.2 0.4
4.8 5.0
V
V
4.0 4.4 4.8 uS
0.3 0.6 0.9 uS
C. sync delay time
C. sync output voltage L
C. sync output voltage H
VL3
VH3
0.2 0.4
4.8 5.0
V
V
Notes :
1 Minimum sync separation operating current measurement
*
*
Given SW1 : c, change VR1 from high to low, and measure current flowing on IIN when TP2 output
switches from high to low.
2 Signal 1 : Rectangular wave signal with 0.3V amplitude and pulse width 4.7µS
Signal 1 waveform
4.7uS
3 Measuring horizontal sync signal pull-in range
*
Given SW1 : a and SW2 : b, with TP1 waveform not synchronized to signal 1, adjust VR2 so that
they are synchronized. Next, switch SW1 to b, and measure TP1 output free run frequency. The
horizontal signal pull-in range is the smaller of the measured value and the difference from
15.73kHz.
No-adjustment Sync Separator MM1109
MITSUMI
4
H. SYNC measurement
*
Signal 1
tw1
VH1
VL1
TP1 waveform
td1
5
V. SYNC measurement
*
Input video signal
(Horizontal sync
signal portion)
VH2
VL2
tw2
TP2 waveform
td2
6
C. SYNC measurement
*
Input video signal
(Horizontal sync
signal portion)
tw3
VH3
VL3
TP3 waveform
td3
Measuring Circuit
No-adjustment Sync Separator MM1109
MITSUMI
Application Circuits
Application Circuit 1
Application Circuit 2
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