FMS6408MTC143X_NL [FAIRCHILD]
Video Amplifier, 3 Channel(s), 1 Func, PDSO14, LEAD FREE, TSSOP-14;
| 型号： | FMS6408MTC143X_NL |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Video Amplifier, 3 Channel(s), 1 Func, PDSO14, LEAD FREE, TSSOP-14 驱动器 |
| 文件： | 总9页 (文件大小：248K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
FMS6408
Triple Video Filter Driver for RGB and YUV Signals
Features
Description
• 7.6MHz 5th order RGB/YUV/YC CV filters
• 50dB stopband attenuation at 27MHz on all outputs
• Better than 0.5dB flatness to 4.2MHz on all outputs
• No external frequency selection components or clocks
• AC coupled inputs and AC or DC coupled outputs
• Supports both NTSC and PAL luminance bandwidth
• Continuous time low pass filters for video anti-aliasing
or reconstruction applications
The FMS6408 provides three video signal paths including a
two-input mux, a video filter and a 6dB gain output driver.
The filter bandwidth supports RGB and YUV signals in
either NTSC or PAL formats.
The video filters approximate a 5th order Butterworth low
pass characteristic optimized for minimum overshoot and
flat group delay to provide excellent image quality. Four
different peaking options are available. The video filters can
be bypassed if desired.
• <1% differential gain with 0.5° differential phase on
all channels
• Integrated DC restore circuitry with low tilt
In a typical application, the RGB or YUV DAC outputs are
AC coupled into the filters through the input mux. All
channels have DC restore circuitry to clamp the DC input
levels during video sync. The clamp pulse derived from the
selectedY input controls three independent feedback clamps.
All outputs are capable of driving 2Vpp, AC or DC coupled,
into either a single (150Ω) or dual (75Ω) video load. The
FMS6408 clamp levels can be factory programmed forYUV
/RGB (250mV for all channels), YC / YPbPr (250mV on
channel 1 and 1.125V on channels 2 and 3) or YC CV
(250mV on channels 1 and 3 and 1.125V on channel 2).
Applications
• Cable set top boxes
• Satellite set top boxes
• Terrestrial set top boxes
• DVD players
• Personal Video Recorders (PVR)
• Video On Demand (VOD)
Functional Block Diagram
INMUX (A/B)
BYPASS (BYPASS/FILTER)
Y
Y
OUT
6dB
INA
8MHz
*
Y
INB
gM
250mV
Sync Processing
U
U
OUT
6dB
INA
INB
8MHz
*
U
gM
250mV or
1.125V *
V
V
V
OUT
6dB
INA
INB
8MHz
*
gM
250mV or
1.125V *
* Factory Selected Clamp
and Peaking Levels
REV. 2C August 31, 2004
DATA SHEET
FMS6408
Electrical Specifications
(TC = 25˚C, Vi = 1Vpp, VCC = 5.0V, all inputs AC coupled with 0.1µF, all outputs AC coupled with 220µF into 150Ω,
referenced to 400kHz, 0dB peaking option; unless otherwise noted)
Symbol Parameter
Conditions
Min Typ Max Units
1
ICC
Supply Current
VCC no load
52
86
mA
Vpp
V
Vi
Input Voltage Max
1.4
1
Vil
Digital Input Low
Bypass, A_NB
Bypass, A_NB
YUV/RGB/CV Inputs
PbPr/C Inputs
DC
0
0.8
1
Vih
Digital Input High
2.0
VCC
V
2
VCLAMP
Clamp Voltage
250
1.125
-40
mV
V
PSRR
Power Supply Rejection Ratio
dB
AC Electrical Specifications
(TC = 25˚C, Vi = 1Vpp, VCC = 5.0V, all inputs AC coupled with 0.1µF, all outputs AC coupled with 220µF into 150Ω,
referenced to 400kHz, 0dB peaking option; unless otherwise noted)
Symbol Parameter
Conditions
Min Typ Max Units
1
APB
Passband Response
4.2MHz
-0.5
5.6
0
5.9
0.3
0.7
1.2
1.6
7.6
52
dB
dB
dB
dB
dB
dB
MHz
dB
%
1
AVLF
∆AVHF
Low Frequency Gain (All Channels) at 400kHz
6.2
Delta High Frequency at 5MHz
0dB Peaking Option
3
(All Channels)
0.4dB Peaking Option
0.9dB Peaking Option
1.3dB Peaking Option
All Channels
fC
-3dB Bandwidth
1
fSBh
Stopband Rejection (All Channels)
Differential Gain
at 27MHz
48
dG
All Channels
0.2
0.5
0.2
75
dθ
Differential Phase
All Channels
°
THD
SNR
HDIST
VDIST
tpd
Total Harmonic Distortion
at 3.58MHz
%
SNR All Channels (NTC7 Weighted) 4.2MHz Lowpass, 100kHz Highpass
dB
%
Line-Time Distortion
18µs, 100 IRE Bar
130 Lines, 18µs, 100 IRE Bar
400kHz
TBD
TBD
65
Field-Time Distortion
%
Propagation Delay (All Channels)
Group Delay (All Channels)
tpdSkew Between Any 2 Channels
ns
GD
to 3.58MHz (NTSC)
at 400kHz
14
ns
tSKEW
AV(match)
TCLAMP
XTALK
2
ns
1
Channel Gain Matching
400kHz
0
5
%
Clamp Response Time (All Channels) Settled to 10mV, Initial Condition 0V
5
ms
dB
dB
MHz
Crosstalk (Channel-to-Channel)
at 1.0MHz
-65
-85
25
INMUXISO Input Mux Isolation
at 1.0MHz
f1dBWB
Bypass Mode -1dB Bandwidth
1.4Vpp Output All Channels
Notes
1. 100% tested at 25°C.
2. Mode selection for YUV/RGB vs. PbPr/YC vs. YC CV operation based on factory programming
3. Peaking Options boost gain by 0dB, 0.4dB, 0.9dB, or 1.3dB from 4.2MHz to 5MHz based on factory programming
2
REV. 2C August 31, 2004
FMS6408
DATA SHEET
Factory Programming Options (See Ordering Information Table on Page 9 for current options)
Part Name
Part Number
Clamping
Mode
Peaking
Mode (dB)
YOUT Level UOUT Level VOUT Level
(mV)
250
250
250
250
250
250
250
250
250
250
250
250
(V)
(V)
1.125
1.125
1.125
1.125
250
FMS6408-1
FMS6408-2
FMS6408-3
FMS6408-4
FMS6408-5
FMS6408-6
FMS6408-7
FMS6408-8
FMS6408-9
FMS6408MTC141_NL
FMS6408MTC142_NL
FMS6408MTC143_NL
FMS6408MTC144_NL
FMS6408MTC145_NL
FMS6408MTC146_NL
FMS6408MTC147_NL
FMS6408MTC148_NL
FMS6408MTC149_NL
YPbPr/YC
YPbPr/YC
YPbPr/YC
YPbPr/YC
YUV/RGB
YUV/RGB
YUV/RGB
YUV/RGB
YC/CV
0
1.125
1.125
1.125
1.125
250
0.4
0.9
1.3
0
0.4
0.9
1.3
0
250
250
250
250
250
250
1.125
1.125
1.125
1.125
250
FMS6408-10 FMS6408MTC1410_NL
FMS6408-11 FMS6408MTC1411_NL
FMS6408-12 FMS6408MTC1412_NL
YC/CV
0.4
0.9
1.3
250
YC/CV
250
YC/CV
250
Note
These factory programming options allow a single die to be configured for multiple operating modes.
Absolute Maximum Ratings (beyond which the device may be damaged)
Parameter
Min
-0.3
-0.3
Max
Units
VCC
6
V
V
Analog and Digital
VCC + 0.3
50
Output Current Any One Channel (Do not exceed)
Input Source Resistance (RS)
mA
Ω
300
Note
Functional operation under any of these conditions is NOT implied. Performance and reliability are guaranteed only if operating
conditions are not exceeded.
Reliability Information
Parameter
Min
Typ
Max
+150
+150
+300
Units
°C
Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10s)
-65
°C
°C
θ
Thermal Resistance ( ),
JEDEC Standard Multi-layer Test Boards, Still Air
90
°C/W
JA
Recommended Operating Conditions
Parameter
Min
0
Typ
Max
70
Units
°C
Temperature Range
VCC Range
+4.75
+5.0
+5.25
V
REV. 2C August 31, 2004
3
DATA SHEET
FMS6408
Typical Performance Characteristics
(TC = 25˚C, Vi = 1Vpp, VCC = 5.0V, all inputs AC coupled with 0.1µF, all outputs AC coupled with 220µF into 150Ω,
referenced to 400kHz, 0dB peaking option; unless otherwise noted)
SD Frequency Response
SD Group Delay vs. Frequency
60
40
20
0
10
0
2
1
1
-10
-20
-30
Mkr
Freq.
Gain
Ref 400kHz 6dB
-20
-40
-60
1
2
3
6.91MHz -1dB BW
7.8MHz -3dB BW
-40
-50
27MHz
-43.24dB
1 = 7.6MHz (31.88ns)
fSBSD = Gain(ref) – Gain(3) = 49.24dB
3
400kHz
5
10
15
20
25
30
400kHz
5
10
15
20
25
30
Frequency (MHz)
Frequency (MHz)
SD Noise vs. Frequency
SD Differential Gain
-50
-60
0.2
0
NTSC
-70
-80
-0.2
-0.4
-0.6
-0.8
-90
-100
-110
-120
Min = -0.61
Max = 0.00
ppMax = 0.61
1st
2nd
3rd
4th
5th
6th
0
1.0
2.0
3.0
4.0
5.0
6.0
Frequency (MHz)
SD Differential Phase
Bypass Mode Frequency Response
0.05
0
7
6
VO = 1.4pp
5
4
3
2
1
0
1
-0.05
-0.10
-0.15
-0.20
2
Mkr Frequency
Gain
6dB
Ref 400kHz
Min = -0.13
Max = 0.00
ppMax = 0.13
1
2
28.75MHz -1dB BW
36.94MHz -3dB BW
1st
2nd
3rd
4th
5th
6th
400kHz
5
10 15 20 25 30 35 40 45
Frequency (MHz)
Bypass Mode Group Delay vs. Freq.
16
14
12
10
8
1
6
4
2
1 = 25MHz (8.99ns)
0
400kHz
5
10 15 20 25 30 35 40 45
Frequency (MHz)
4
REV. 2C August 31, 2004
FMS6408
DATA SHEET
Pin Configuration
Pin#
Pin
Type Description
Y
V
Y
1
2
3
4
5
6
7
14
13
12
11
10
9
INA
INA
INA
CC
1
Y
Input Y (Luminance) or Green input A, must be
connected to a signal which includes sync
INA
U
V
OUT
FMS6408
14-pin
TSSOP
2
3
4
5
U
V
Input U or Blue input A
INA
BYPASS
Input V or Red input A
INA
U
GND
OUT
GND
Input Must be tied to ground, do not float
Y
GND
INB
Y
Input Y (Luminance) or Green input B, must be
connected to a signal which includes sync
INB
U
V
INB
OUT
6
7
8
U
V
Input U or Blue input B
Input V or Red input B
INB
V
IN
(A/B)
MUX
8
INB
INB
IN
(A/B) Input Mux select, A = ‘1’, B = ‘0’, must be
externally tied high or low
MUX
9
V
Output V or Red output
OUT
10
11
12
GND
Input Must to be tied to ground, do not float
Output U or Blue output
U
OUT
BYPASS
(Bypass/Filter)
Input Filter bypass, BYPASS = ‘1’, FILTER = ‘0’,
must be externally tied high or low
13
14
Y
Output Y or Green output
Input +5V supply
OUT
V
CC
Sync processing is based on the Y/G input channel in all
operating modes.
Functional Description
Introduction
This product is a three channel monolithic continuous time
video filter designed for reconstructing YUV, YC CV or
RGB signals from a video D/A source. Inputs should be AC
coupled while outputs can be either AC or DC coupled.
The reconstruction filters approximate a 5th order Butter-
worth response optimized for minimum overshoot and flat
group delay. This provides a maximally flat response in
terms of delay and amplitude. Each of the three outputs is
capable of driving 2Vpp into 75Ω loads.
Inputs
The inputs will typically be driven by either a low impedance
source of 1Vpp or the output of a 75Ω terminated line driven
by the output of a current DAC. In either case, the inputs
must be capacitively coupled to allow the sync-detect and
DC restore circuitry to operate properly.
Outputs
The outputs are low impedance voltage drivers which can
handle either a single or dual load. A single load consists of
a 75Ω series termination resistor feeding a 75Ω terminated
line for a total load at the part of 150Ω. Even when two loads
are present (75Ω) the driver will produce a full 2Vpp signal
at its output pin. The driver can also be used to drive an AC
coupled single or dual load. When driving a dual load either
output will still function if the other output connection is
inadvertently shorted providing these loads are AC coupled.
All channels are clamped during the sync interval to set the
appropriate dc output level. Sync tip clamping greatly reduces
the effective input time constant allowing the use of small
low cost input coupling capacitors. The input will settle to
10mV in 2ms for typical DC shifts present in the video signal.
In most applications the input coupling capacitors are 0.1µF.
The inputs typically sink 1uA of current during active video.
For YUV signals, this translates into a 2mV tilt in a horizon-
tal line at the Y output. During sync, the clamp restores this
leakage current by sourcing an average of 20µA over the
clamp interval. Any change in the coupling capacitor values
will affect the amount of tilt per line. Any reduction in tilt
will come with an increase in settling time.
REV. 2C August 31, 2004
5
DATA SHEET
FMS6408
Typical Application Diagrams
+5V
0.1
uF
1.0
uF
0.1uF
0.1uF
0.1uF
1
14
13
12
Y
Y
V
CC
INA
INA
FMS6408
14L TSSOP
220uF
220uF
220uF
2
3
4
5
6
7
U
U
Y
OUT
INA
INA
INA
V
V
BYPASS
INA
11
GND
U
OUT
300k
10
0.1uF
0.1uF
0.1uF
Y
Y
GND
INB
INB
9
8
U
U
V
INB
INB
OUT
10k
V
V
IN
MUX
(A/B)
INB
INB
Figure 1. AC-CoupledYUV Line Driver with Single Video Loads
+5V
0.1
uF
1.0
uF
0.1uF
0.1uF
0.1uF
75 Video Cables
75
75
75
75
75
75
1
14
13
12
11
Y
Y
V
CC
INA
INA
75
75
75
75
75
75
FMS6408
14L TSSOP
2
U
U
Y
OUT
INA
INA
INA
3
4
5
6
7
V
V
BYPASS
INA
GND
U
OUT
300kΩ
0.1uF
0.1uF
0.1uF
10
Y
Y
GND
INB
INB
9
8
U
U
V
V
OUT
INB
INB
10kΩ
V
IN
(A/B)
INB
INB
MUX
Figure 2. DC-CoupledYUV Line Driver with Dual Video Loads
6
REV. 2C August 31, 2004
FMS6408
DATA SHEET
Application Notes
Pdiss (Y) = (5V - 1.55V) * 20.6mA = 71mW
Output Drive Capability
The average DC level for the U and V channels is set by the
clamp circuit to 1.125V. The signal will be symmetrical
about this voltage so:
The FMS6408 can drive dual 75Ω loads where each load
consists of a 75Ω resistor in series with a 75Ω termination
resistor in the driven device. This presents a 150Ω load to
the output so two similar loads in parallel look like 75Ω from
the output to ground. In some cases it may be desirable to
drive a single load on one or more outputs with a dual load
on the remaining outputs. This is an acceptable loading con-
dition but might cause a slight degradation in gain matching.
Iload (U) = 1.125V/75Ω = 15mA
The device dissipation due to this load will be the internal
voltage drop multiplied by the load current:
Pdiss (U) = (5V - 1.125V) * 15mA = 58.125mW
Since the U and V power dissipation are approximately the
same, the total dissipation due to the load can be estimated
by:
Device Power Dissipation
Pdiss (load) = P (Y) + 2 * P (U) = 71mW +
(2 * 58.125mW) = 187.55mW
The FMS6408 specifications provide a quiescent no-load
supply current of 52mA (typical). With a nominal 5V
supply, this results in a power dissipation of 260mW. The
overall power dissipation can be significantly affected by the
applied load, particularly in DC-coupled applications. In
order to calculate the total power dissipation the typical
output voltages and the loading must be known.
This will bring the typical total device power dissipation to
260mW (quiescent power) + 187.55mW (load power) or
447.55mW. It is advisable to calculate the highest possible
power dissipation using worst-case quiescent supply current
and the maximum allowable power supply voltage. This
result should be used when calculating the die temperature
rise with the supplied θJA, thermal resistance value.
The highest power dissipation will occur for YUV video sig-
nals that are DC-coupled into dual video loads. Refer to the
the diagram in Figure 3 below.
Field Time Distortion
In applications with AC-coupled outputs, the AC-coupling
capacitors will dominate the field time distortion. Perfor-
mance is specified with 220µF coupling capacitors; if better
performance is desired, the capacitors may be increased or
the outputs may be DC-coupled.
Assume a video signal on the Y channel that averages 50%
luminance with an output voltage of 1.55V then calculate the
load current:
Iload (Y) = 1.55V/75Ω = 20.6mA
The device dissipation due to this load will be the internal
voltage drop multiplied by the load current:
+5V
75Ω Video Cables
75Ω
V
2.25V
1.55V
CC
75Ω
I
Y
0.85V
0.25V
75Ω
Y
OUT
Driver
+ VI
75Ω
-
Y
75Ω
1.825V
1.125V
0.425V
75Ω
I
U
75Ω
U
OUT
Driver
+ VI
75Ω
-
U
75Ω
1.825V
1.125V
0.425V
75Ω
I
V
75Ω
V
OUT
Driver
+ VI
75Ω
-
V
Figure 3. YUV Video Signals that are DC-Coupled into Dual Video Loads
REV. 2C August 31, 2004
7
DATA SHEET
FMS6408
Package Dimensions
7
6
– B –
MTC-14
e
N
5
(b)
2X E/2
MTC-14
8
1.0 DIA
SYMBOL
MIN
NOM
MAX
1.10
0.15
0.95
0.75
–
E1 E
c
c1
A
–
–
A1
A2
L
R
R1
b
0.05
0.85
0.50
0.09
0.09
0.19
0.19
0.09
0.09
0
–
0.90
0.60
–
–
–
0.22
–
–
1.0
b1
1
2 3
6
ddd C B A
SECTION AA
2X
e /2
9
N/2 TIPS
1.0
–
0.30
0.25
0.20
0.16
8
b1
c
ccc
D
c1
01
L1
aaa
bbb
ccc
ddd
e
A2
A
8
3
7
– A –
–
aaa C
1.0 REF
0.10
0.10
0.05
0.20
0.65 BSC
12 REF
12 REF
5.00
– C –
b
NX A1
(02)
(0.20)
M
bbb C B A
R1
02
03
D
– H –
R
GAGE
PLANE
4.90
4.30
5.10
4.50
E1
E
e
4.40
6.4 BSC
0.65 BSC
14
10
(03)
A
A
0.25
01
L
N
(L1)
NOTES:
1
2
3
4
5
All dimensions are in millimeters (angle in degrees).
Dimensioning and tolerancing per ASME Y14.5–1994.
Dimensions "D" does not include mold flash, protusions or gate burrs. Mold flash protusions or gate burrs shall not exceed 0.15 per side .
Dimension "E1" does not include interlead flash or protusion. Interlead flash or protusion shall not exceed 0.25 per side.
Dimension "b" does not include dambar protusion. Allowable dambar protusion shall be 0.08mm total in excess of the "b" dimension at maximum
material condition. Dambar connot be located on the lower radius of the foot. Minimum space between protusion and adjacent lead is 0.07mm
for 0.5mm pitch packages.
6
7
8
9
Terminal numbers are shown for reference only.
Datums – A – and – B – to be determined at datum plane – H – .
Dimensions "D" and "E1" to be determined at datum plane – H – .
This dimensions applies only to variations with an even number of leads per side. For variation with an odd number of leads per side, the "center"
lead must be coincident with the package centerline, Datum A.
10 Cross sections A – A to be determined at 0.10 to 0.25mm from the leadtip.
8
REV. 2C August 31, 2004
FMS6408
DATA SHEET
Ordering Information
Lead
Free
Output
Peaking
Pack
Qty
Model
Part Number
Mode
Package
Container
FMS6408
FMS6408
FMS6408
FMS6408
FMS6408MTC141_NL
FMS6408MTC141X_NL
FMS6408MTC143_NL
FMS6408MTC143X_NL
YUV/RGB
YUV/RGB
YUV/RGB
YUV/RGB
0dB
0dB
TSSOP-14
TSSOP-14
TSSOP-14
TSSOP-14
Tube
94
2500
94
Tape and Reel
Tube
0.9dB
0.9dB
Tape and Reel
2500
Temperature range for all parts: 0°C to +70°C.
Contact Fairchild for ordering information regarding other clamping and peaking options. Refer to the Factory Programming Options Table on
page 3 for a detailed description of available options.
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICES TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION
OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES
IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN
APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for
surgical implant into the body, or (b) support or sustain life, and (c) whose failure to per
form when properly used in accordance with instructions for use provided in the labeling,
can be reasonably expected to result in a significant injury of the user.
2. A critical component in any component of a life support device or system whose failure
to perform can be reasonably expected to cause the failure of the life support device or
system, or to affect its safety or effectiveness.
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© 2004 Fairchild Semiconductor Corporation
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