MM1389 [MITSUMI]
Pedestal Clamp 2-Input 1-Output 3-Circuit Video Switch; 底座钳2输入1输出3在线视频开关
| 型号： | MM1389 |
| 厂家： | 
MITSUMI ELECTRONICS, CORP. |
| 描述： | Pedestal Clamp 2-Input 1-Output 3-Circuit Video Switch |
| 文件： | 总7页 (文件大小：109K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Pedestal Clamp 2-Input 1-Output 3-Circuit Video Switch MM1389
MITSUMI
Pedestal Clamp 2-Input 1-Output 3-Circuit Video Switch
Monolithic IC MM1389
Outline
This is a video switch IC developed for use in video cameras, with 2-input and 1-output circuits. It has
pedestal clamp input, making it ideal for RGB and video signal switching,
Features
1. Pedestal clamp input
2. Low current consumption
3. Frequency response
12mA typ.(VCC5V)
10MHz typ. 0dB
4.5~12V
4. Operating power supply voltage
Package
SOP-16B (MM1389XF)
Applications
1. TV
2. VCR
3. Other video equipment
Block Diagram
Control input truth table
SW
OUT
IN2a
IN2b
IN2c
IN1a
IN1b
IN1c
L
H
Pedestal Clamp 2-Input 1-Output 3-Circuit Video Switch MM1389
MITSUMI
Pin Description
Pin no.
Pin name
Function
Internal equivalent circuit diagram
1
8
IN2a
IN2c
IN1c
IN1b
IN2b
IN1a
Input pin 2SWa
Input pin 2SWc
Input pin 1SWc
Input pin 1SWb
Input pin 2SWb
Input pin 1SWa
9
11
14
16
2
7
CTLa
CTLb
CTLc
Switching pin a
Switching pin b
Switching pin c
12
3
5
6
OUTa
OUTb
OUTc
Output pin SWa
Output pin SWb
Output pin SWc
4
GND
GND
GND pin 1
GND pin 2
15
10
CLAMP PULSE
Clamp pulse input pin
13
VCC
Power supply voltage pin
Pedestal Clamp 2-Input 1-Output 3-Circuit Video Switch MM1389
(Ta=25°C)
MITSUMI
Absolute Maximum Ratings
Item
Symbol
TSTG
Ratings
-40~+125
Units
°C
Storage temperature
Operating temperature
Power supply voltage
Allowable loss
TOPR
-25~+75
°C
VCC max.
Pd
15
V
350
mW
Recommended Operating Conditions
Item
Symbol
Ratings
Units
°C
Operating temperature
Operating voltage
TOPR
VOP
-25~+75
4.5~12.0
V
(Except where noted therwise, Ta=25°C, VCC=5.0V)
Electrical Characteristics
Item
Symbol
Measurement conditions
Refer to Measuring Circuit
Refer to Measuring Circuit
Refer to Measuring Circuit
Refer to Measuring Circuit
Refer to Measuring Circuit
Refer to Measuring Circuit
Refer to Measuring Circuit
Refer to Measuring Circuit
Refer to Measuring Circuit
Refer to Measuring Circuit
Min. Typ. Max. Units
12.0 17.0 mA
Consumption current
Voltage gain
ID
GV
FC
-
0.5
0
0
+0.5 dB
+1 dB
Frequency characteristic
-1
Dynamic range 1
Dynamic range 2
VD1
VD2
CT
1.40 1.65
0.80 0.95
VP
-
P
VP-
P
Crosstalk
-70
-
60
0.7
0.7
dB
V
Switch input voltage H
Switch input voltage L
Clamp pin input voltage H
Clamp pin input voltage L
VIH
2.1
2.1
VIL
V
VCTH
VCTL
V
V
VD1 : Positive dynamic range (from clamp level)
VD2 : Negative dynamic range (from clamp level)
Pedestal Clamp 2-Input 1-Output 3-Circuit Video Switch MM1389
MITSUMI
(Except where noted otherwise, VCC=5.0V, VC1=VCC, VC2=0V,
PULSE=VCC, C1~C6=0.1µF, impress VB=3.5V when S9 is 2)
Measuring Procedures
Switch state
Item
Symbol
Notes
S1 S2 S3 S4 S5 S6 S7 S8 S9 S10~S15
Consumption current
ID
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
2
2
1
2
2
2
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
1
2
2
2
2
2
2
2
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
1
1
1
1
1
1
1
1
2
1
1
2
2
3
3
1
1
2
2
3
3
1
1
2
2
3
3
1
1
2
2
3
3
1
2
3
1
2
3
1
2
3
1
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
Voltage gain
GV
1
1
1
1
1
Frequency
1
FC
characteristic
1
1
1
2
VD1: Positive
2
dynamic range (from
clamp level)
Dynamic
VD1
VD2
2
VD2: Negative
dynamic range (from
clamp level)
range 1, 2
2
2
2
1
1
1
Crosstalk
CT
1
1
1
1, 2
1, 2
1, 2
1, 2
1, 2
1, 2
1
Switch input
voltage H, L
VIH
VIL
Clamp pin input
voltage H, L
VCTH
VCTL
1
1
Pedestal Clamp 2-Input 1-Output 3-Circuit Video Switch MM1389
MITSUMI
(Except where noted otherwise, VCC=5.0V, V
C
1=VCC, V
C
2=0V, PULSE=VCC, C1~C6=0.1µF, impress V
Measurement conditions
B
=3.5V when S9 is 2)
Notes
Item
Symbol
Connect a DC ammeter to the VCC pin and measure. The
ammeter is shorted for subsequent measurements.
Consumption current
ID
Input a 2.0VP
GV from the following formula given TP1 voltage as V1 f=100kHz
and TP3 voltage as V2. V=2.0VP
GV=20Log (V2/V1) dB
-
P, 100kHz sine wave to SG, and obtain
Voltage gain
GV
-P
For the above G
V
measurement, given TP3 voltage for
is obtained from the following formula.
FC=20Log (V3/V2) dB
10MHz/100kHz
Frequency characteristic
Dynamic range 1, 2
FC
10MHz as V3, F
C
V=2.0VP
-P
Input a video signal to SG and a 5VP-P clamp pulse to PULSE.
Given input amplitude on the positive side of clamp level V
as V IN, and output amplitude as V OUT and negative side
input amplitude as V IN, and output amplitude as V
2 is obtained from the following formula.
C
D1
D1
VD1
VD2
D2
D2OUT
,
VD
<
VD1 : 20Log (VD1OUT/VD1IN) VD1IN for
-1dB
=
<
VD2 : 20Log (VD2OUT/VD2IN) VD2IN for
-1dB
=
Input a 2.0VP P, 4.43MHz sine wave to SG, and given
-
TP1 voltage as V4 and TP3 voltage as V5, CT is
obtained from the following formula.
CT=20Log (V5/V4) dB
f=4.43MHz
V=2.0VP
Crosstalk
CT
-P
Make S10, S12 and S14 1, and S11, S13 and S15 2.
Input a 2.0VP P, 100kHz sine wave to SG, and raise
-
VIH
gradually from VC1=0V. TP4 voltage when the SG
signal appears on TP2 is VIN. Next, reverse S10~S15
settings and lower gradually from VC1=VCC. TP4
voltage when the SG signal appears on TP2 is VIL.
Impress 4V on VB and raise gradually from
Switch input voltage H, L
Clamp pin input voltage H, L
VIL
VCTH
VCTL
PULSE=0V. TP11 voltage when less than 2.0V appears
on TP2 is VCTH. Lower from PULSE=VCC, and TP11
voltage when more than 2.2V appears on TP2 is VCTL
.
Pedestal Clamp 2-Input 1-Output 3-Circuit Video Switch MM1389
MITSUMI
Measuring Circuit
Pedestal Clamp 2-Input 1-Output 3-Circuit Video Switch MM1389
MITSUMI
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