FMS6151 Ultra-Portable Video Filter Driver Features
Description
■ 5th-Order 8MHz (SD) Filter
The FMS6151 low-cost integrated video filter is intended to replace passive LC filters and drivers in low-voltage portable video applications. The 5th-order filter provides better image quality compared to typical 2nd- and 3rdorder passive solutions.
■ Power Down to 25nA ■ DC-Coupled Input ■ AC- or DC-Coupled Output ■ DC-Coupled Output Eliminates AC-Coupling Cap ■ SAG Correction Reduces Size of AC-Coupling Cap
The FMS6151 is intended to be directly driven by a DCcoupled DAC output. The output can drive an AC- or DCcoupled doubly terminated coax (150Ω) load. DC-coupling the output removes the need for an expensive output coupling capacitor. If an AC-coupled output is needed, the SAG correction circuit can be used to reduce the AC output coupling capacitor value. Input DC levels are offset by approximately 100mV. This internal level shift is incorporated to prevent sync pulse clipping.
■ Fixed Gain of 6dB ■ Small, Lead-Free, MicroPak™ Packaging
Applications ■ Digital Still Cameras ■ Camera Phones ■ Personal Digital Assistants ■ Set Top Boxes ■ Digital Video Recorders
Offering SAG correction, 6dB fixed gain, and a 5th-order low-pass filter in a space-saving MicroPak™ package makes the FMS6151 well suited for space-sensitive applications, such as cellular phones and digital cameras.
Block Diagram Vcc = 2.5V to 3.6V
EN
+
VIN 8MHz, 5th order
VOUT
SAG
Figure 1. Block Diagram
Ordering Information Part Number
Operating Temperature Range
Package
Packaging Method
-40°C to +105°C
6-Lead MicroPak™
Reel
FMS6151L6X
© 2006 Fairchild Semiconductor Corporation FMS6151 • Rev. 1.0.6
www.fairchildsemi.com
FMS6151 — Ultra-Portable Video Filter Driver
June 2010
FMS6151 — Ultra-Portable Video Filter Driver
Pin Configuration
VIN
1
6
EN
FMS6151 GND
2
5
Vcc
SAG
3
4
VOUT
Figure 2. Pin Assignments
Pin Assignments Pin#
Pin Name
Type
Description
1
VIN
Input
Input video
2
GND
Input
Ground SAG
3
SAG
Input
4
VOUT
Output
5
VCC
Input
Positive power supply
6
EN
Input
Enable 0 = Disabled 1 = Enabled
© 2006 Fairchild Semiconductor Corporation FMS6151 • Rev. 1.0.6
Filtered video output
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Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.
Min.
Max.
Unit
DC Supply Voltage
Parameter
-0.3
6.0
V
Analog and Digital I/O
-0.3
+VCC +0.3
V
45
mA
Maximum Output Current, Do Not Exceed Electrostatic Discharge Protection Level
Human Body Model, JESD22-A114
6
Charged Device Model, JESD22-C101
2
kV
Reliability Information Parameter
Min.
Typ.
Junction Temperature Storage Temperature Range
-65
Thermal Resistance (θJA), JDEC Standard, Multi-layer Test Boards, Still Air
Max.
Unit
+150
°C
+150
°C
271
°C/W
Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings.
Parameter
Min.
Operating Temperature Range
-40
Supply Voltage Range
2.5
© 2006 Fairchild Semiconductor Corporation FMS6151 • Rev. 1.0.6
Typ. 2.7
Max.
Unit
+105
°C
3.6
V
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FMS6151 — Ultra-Portable Video Filter Driver
Absolute Maximum Ratings
TA = 25°C, VCC = 2.7V, Rs = 37.5Ω, AC-coupled output into 150Ω load, SAG pin connected to VOUT pin, unless otherwise noted. Symbol ICC VIN Vols PSRR
Parameter
Conditions
Supply Current(1)
VCC = 2.7V, No Load
Video Input Voltage Range
Referenced to GND
Output Level Shift(1)
VIN = 0V
Vols over power supply
VCC = 2.7V to 3.3V
ISH
Shut Down Current
Min.
Typ.
Max.
Units
3.8
6.4
mA
1.2 50
200
Vpp 350
mV
40
dB
25
nA
Vil
Disabled Logic Low
Vih
Enabled Logic High(1)
tON
Enable Time
1.5
μs
tOFF
Disable Time
50
ns
0
(1)
0.8
VCC *0.6
V
VCC
V
AC Electrical Characteristics TA = 25°C, VCC = 2.7V, Rs = 37.5Ω, AC-coupled output into 150Ω load, SAG pin connected to VOUT pin, unless otherwise noted. Symbol
Parameter
AV
Gain
f1dB
-1dB Bandwidth(1)
(1)
Conditions DC
fc
-3dB Bandwidth
fSB
Attenuation(1) (Stopband Reject) 27MHz
Min.
Typ.
Max.
Units
6.0
6.2
6.4
5.0
6.7
MHz
8
MHz
40
47
dB
dB
DG
Differential Gain
0.5
%
DP
Differential Phase
0.5
°
78
dB
SNR
Signal-to-Noise Ratio
NTC-7 Weighting, 100kHz to 4.2MHz
Note: 1. 100% tested at 25°C.
© 2006 Fairchild Semiconductor Corporation FMS6151 • Rev. 1.0.6
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FMS6151 — Ultra-Portable Video Filter Driver
DC Electrical Characteristics
TA = 25°C, VCC = 2.7V, Rs = 37.5Ω, AC-coupled output into 150Ω load, SAG pin connected to VOUT pin, unless otherwise noted. 10
2.0 1
Gain (dB)
-10 -15 -20 -25
1.8 2
Mkr Frequency Ref 400kHz
-30 -35 -40 -45
Gain Error (%)
5 0 -5
Gain 6dB
1 2
6.7MHz 8.0MHz
-1dB BW -3dB BW
3
27MHz
-42dB
3
1.6 1.4 1.2 1.0 0.8
fSBSD = Gain(ref) – Gain(3) = 48dB
0.6 0
5
10
15
20
25
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
30
Frequency (MHz)
Temperature (°C)
Figure 3. Frequency Response
Figure 4. Gain Error vs. Temperature
3.0
2.5 2.0
Differential Gain (%)
Signal Amplitude (V)
Enable Pulse
2.0
1.0 Output
0
1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0
-1.0
NTSC without SAG
Min = -0.58 Max = 0.00 ppMax = 0.58
-2.5 -1
0
1
2
3
4
5
6
1st
2nd
3rd
4th
5th
6th
Time (µs)
Figure 5. Enable/Disable Response
Figure 6. Differential Gain
7.0
2.5
Differential Phase (deg)
6.0
Icc (mA)
5.0 4.0 3.0 2.0 1.0
2.0 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0
0
NTSC without SAG
Min = -0.58 Max = 0.12 ppMax = 0.70
-2.5 2.5
3.0
3.5
4.0
4.5
5.0
5.5
1st
2nd
3rd
4th
5th
6th
Vcc (V)
Figure 7. ICC vs. Supply Voltage
© 2006 Fairchild Semiconductor Corporation FMS6151 • Rev. 1.0.6
Figure 8. Differential Phase
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FMS6151 — Ultra-Portable Video Filter Driver
Typical Performance Characteristics
TA = 25°C, VCC = 2.7V, Rs = 37.5Ω, AC-coupled output into 150Ω load, SAG pin connected to VOUT pin, unless otherwise noted. 4.0
60 50
ISH (nA)
Icc (mA)
3.9 3.8 3.7
40 30 20
3.6
10
3.5
0 -40
-20
0
20
40
60
80
-40
Temperature (°C)
0
20
40
60
80
Temperature (°C)
Figure 9. Supply Current vs. Temperature
© 2006 Fairchild Semiconductor Corporation FMS6151 • Rev. 1.0.6
-20
Figure 10. Shutdown Current vs. Temperature
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FMS6151 — Ultra-Portable Video Filter Driver
Typical Performance Characteristics
SAG Correction SAG correction provides excellent performance with a small output coupling capacitor. It eliminates the 220μF 1000μF output coupling capacitors traditionally used. The traditional output circuit (220μF into 150Ω load) creates a single pole (-3dB) at 5Hz. Reducing this capacitor causes excessive phase shift, resulting in video field tilt that can prevent proper recovery of the synchronization signals.
Input Voltage The FMS6151 is intended to be directly driven by a DCcoupled DAC output. The input common-mode range of the FMS6151 is 1.2Vpp, ground referenced.
Enable/Shutdown The FMS6151 has a shutdown feature that disables the output and reduces the quiescent current to ~25nA. This feature is especially useful in portable applications, such as cellular phones, hand held gaming devices, and video cameras requiring video filtering and drive capability.
The FMS6151 SAG correction circuit provides a small amount of peaking, which provides compensation of the phase response, significantly reducing video field tilt. The SAG correction circuit allows decrease of the large 220μF output coupling capacitor. A 22μF is used for SAG correction and a 47μF is used for the output coupling capacitor; much smaller and cheaper than traditional circuit requirements.
Internal Level Shift The FMS6151 has an internal level-shift circuit to avoid sync tip clipping. The output signal is shifted 200mV toward the VCC rail to help prevent clipping. This offset is useful when DC coupled out or using SAG correction.
Output Configuration The FMS6151 output is a low-impedance voltage driver. It is capable of driving an AC- or DC-coupled single load. For more application information, please refer to FMS6151 Application Note, AN-8005.
© 2006 Fairchild Semiconductor Corporation FMS6151 • Rev. 1.0.6
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FMS6151 — Ultra-Portable Video Filter Driver
Application Information
2X 1.45
0.05 C
B 2X
(1 ) 0.05 C
(0 .2 54)
(0 .49) 5X
1.00
(0 .75)
P IN 1 ID E N T IF IE R 5
(0 .52) 1X
A
T O P V IE W 0 .5 5 M A X
(0 .30) 6X
P IN 1
0.05 C 0.05 0.00
RECOMMENED LAND PATTERN 0.05 C
C
D E T A IL A
0.25 0.15 6X
1 .0
0.10 0.05
0.45 0.35
0.10 0.00 6X C B A C
0.40 0.30
0.35 5X 0.25 0.40 5X 0.30 (0 .05) 6X
N otes:
0 .5 B O T T O M V IE W
(0 .13) 4X
0 .0 7 5 X 4 5 CHAM FER
D E T A IL A P IN 1 T E R M IN A L
1. C O N F O R M S T O JE D E C S T A N D A R D M 0-252 V A R IA T IO N U A A D 2 . D IM E N S IO N S A R E IN M ILL IM E T E R S 3 . D R A W IN G C O N F O R M S T O A S M E Y 14 .5 M -19 94 4 . F ILE N A M E A N D R E V IS IO N : M A C 06 A R E V 4 5 . P IN O N E ID E N T IF IE R IS 2X L E N G T H O F A N Y O T H E R L IN E IN T H E M A R K C O D E LA Y O U T .
Figure 11. 6-Lead MicroPak™ Package Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/.
© 2006 Fairchild Semiconductor Corporation FMS6151 • Rev. 1.0.6
www.fairchildsemi.com 8
FMS6151 — Ultra-Portable Video Filter Driver
Physical Dimensions
FMS6151 — Ultra-Portable Video Filter Driver
© 2006 Fairchild Semiconductor Corporation FMS6151 Rev. 1.0.6
www.fairchildsemi.com 9
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Fairchild Semiconductor: FMS6151L6X FMS6151L6X_F085
