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September 1999 PRELIMINARY
ML6426 High Bandwidth Triple Video Filters with Buffered Outputs for RGB or YUV
GENERAL DESCRIPTION
The ML6426 are a family of triple video filters with buffered outputs. There are several versions of the ML6426, each with different passband cut-off frequencies of 6.7MHz, 12MHz, 24MHz, 30MHz, 36MHz, and 48MHz. Each channel contains a 4th-order Butterworth lowpass reconstruction video filter. The filter is optimized for minimum overshoot and flat group delay and guaranteed differential gain and phase at the outputs of the integrated cable drivers. All input signals from DACs are AC coupled into the ML6426. All channels have DC restore circuitry to clamp the DC input levels during video H-sync, using an output feedback clamp. An external H-sync signal is required for this purpose. All outputs must be AC coupled into their loads. Each output can drive 2VP-P into a 150W load. All channels have a gain of 2 (6dB) at 1VP-P input levels.
FEATURES
s s
5V 10% operation RGB/YUV filters for ATSC Digital Television VESA Standard 2:1 Mux Inputs for multiple RGB/YUV inputs Triple Reconstruction Filter options for 6.7, 12, 24, 30, 36, and 48MHz to handle various line rates Multiple ML6426 outputs can be paralleled to drive RGB/YUV outputs at different frequencies for various line rates by means of Disable/Enable pin. 6dB drivers and sync tip clamps for DC restore DC restore with minimal tilt 0.4% differential gain on all channels 0.4 differential phase on all channels 0.8% total harmonic distortion on all channels 2kV ESD protection
s s
s
s s s
s
BLOCK DIAGRAM
12 VCCO RINA/YINA RINB/YINB GINA/UINA GIN/UINB BINA/VINA BINB/VINB MUX TRANSCONDUCTANCE ERROR AMP A/B MUX 1 SYNCIN 16 DISABLE 15 GNDO 14 GND 3
+ -
4 VCC
2 5 6 7 8 9
MUX TRANSCONDUCTANCE ERROR AMP MUX TRANSCONDUCTANCE ERROR AMP
+ - + -
4th-ORDER FILTER A 0.5V 4th-ORDER FILTER B 0.5V 4th-ORDER FILTER C 0.5V
x2
ROUT/YOUT
13
x2
GOUT/UOUT
11
x2
BOUT/VOUT
10
Filter A Filter B Filter C
ML6426-1 6.7MHz 6.7MHz 6.7MHz
ML6426-2 12MHz 12MHz 12MHz
ML6426-3 24MHz 24MHz 24MHz
ML6426-4 30MHz 30MHz 30MHz
ML6426-5 36MHz 36MHz 36MHz
ML6426-6 48MHz 48MHz 48MHz
1
ML6426
PIN CONFIGURATION
ML6426 16-Pin Narrow SOIC (S16N)
A/B MUX RINA/YINA GND VCC RINB/YINB GINA/UINA GINB/UINB BINA/VINA 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 SYNC IN DISABLE GNDO ROUT/YOUT VCCO GOUT/UOUT BOUT/VOUT BINB/VINB
TOP VIEW
PIN DESCRIPTION
PIN NAME FUNCTION PIN NAME FUNCTION
1
A/B MUX
Logic input pin to select between Bank and Bank video inputs. This pin is internally pulled high. Unfiltered analog R- or Y-channel input for Bank . Sync must be provided at SYNC IN pin. Analog ground Analog 5V supply Unfiltered analog R- or Y-channel input for Bank . Sync must be provided at SYNC IN pin.
8
BINA/VINA Unfiltered analog B- or V-channel input for Bank . Sync must be provided at SYNC IN pin. BINB/VINB Unfiltered analog B- or V-channel input for Bank . Sync must be provided at SYNC IN pin. Analog B or V-channel output Analog G or U-channel output 5V power supply for output buffers Analog R or Y-channel output Analog ground Disable/Enable pin. Turns the chip off when logic high. Internally pulled low. Input for an external H-sync logic signal for filter channels. CMOS level input. Active High.
2
RINA/YINA
9
3 4 5
GND VCC RINB/YINB
10 11 12 13 14 15 16
BOUT GOUT VCCO ROUT GNDO DISABLE SYNC IN
6
GINA/UINA Unfiltered analog G- or U-channel input for Bank . Sync must be provided at SYNC IN pin. GINB/UINB Unfiltered analog G- or U-channel input for Bank . Sync must be provided at SYNC IN pin.
7
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ML6426
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. VCC ................................................................................ -0.3V to 7V Junction Temperature .............................................. 150C ESD ..................................................................... >2000V Analog and Digital I/O ........... GND -0.3V to VCC + 0.3V Storage Temperature Range ..................... -65C to 150C Lead Temperature (Soldering, 10 sec) ..................... 260C Thermal Resistance (qJA) .................................... 100C/W
OPERATING CONDITIONS
Temperature Range ....................................... 0C to 70C VCC Range ................................................... 4.5V to 5.5V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VCC = 5V10%, TA = Operating Temperature Range (Note 1)
SYMBOL GENERAL ICC AV V OUT Supply Current Low Frequency Gain (R, G, B) Output Level during Sync (R, G, B,) Output Capability t CLAMP VI OS CL Clamp Response Time Input Signal Dynamic Range (R, G, B,) Peak Overshoot (R, G, B,) Output Load Capacitance (R, G, B,) Output Load Drive Capability, per Pin (YUV or RGB Outputs) dG df T HD PSRR ISC V IH VIL T MUX Differential Gain (R, G, B,) Differential Phase (R, G, B,) Output Distortion (R, G, B,) PSRR (R, G, B,) Output Short Circuit Current (R, G, B,) Input Voltage Logic High Input Voltage Logic Low Input Mux Data Valid Time No Load (VCC=5.5V) VIN= 100mVP-P at 100KHz DURING SYNC RL = 150W, AC-coupled@1MHz Settled to Within 10mV, CIN = 0.1F AC Coupled 2VP-P Output Pulse All Outputs One Load is 150W All Outputs at fC/2 All Outputs at fC/2 VOUT = 2VP-P at 1 MHz 0.5VP-P (100kHz) at VCC Note 2 DISABLE, SYNC IN DISABLE, SYNC IN A/B Mux Pin Valid High or Low 2 2.5 1.0 2 0.4 0.4 0.8 35 120 5.34 0.7 2 10 1.4 4.3 35 52 6.0 0.9 80 6.65 1.1 mA dB V VP-P ms VP-P % pF loads % % dB mA V V s PARAMETER CONDITIONS MIN TYP MAX UNITS
6.7MHz FILTER: ML6426-1 f1dB fc f0.8fc fSB NOISE XTALK XTALK -1dB Bandwidth Flatness (R, G, B,) -3dB Bandwidth Flatness (R, G, B,) 0.8 x fC Attenuation StopBand Rejection (All Channels 4 fC) Output Noise (R, G, B,) Crosstalk A/B MUX Crosstalk fIN 4 fC, Note 3 Fullband Input of 0.5VP-P at 1 MHz Between any two Channels Input of 0.5VP-P at 3.58/4.43MHz -38 25C 25C 4.0 6.0 4.8 6.7 1.5 -42 1.0 -55 -54 7.3 MHz MHz dB dB mVRMS dB dB
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ML6426
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER 6.7MHZ FILTER: ML6426-1 (continued) T PD DT PD Group Delay (R, G, B,) Group Delay Deviation from Flatness (R, G, B,) 100kHz to 3.58MHz to 4.43MHz to 10MHz 2MHz FILTER: ML6426-2 f 1dB fc f0.8fc fSB NOISE XTALK XTALK T PD DT PD -1dB Bandwidth Flatness (R, G, B,) -3dB Bandwidth Flatness (R, G, B,) 0.8 x fC Attenuation StopBand Rejection (All Channels 4 fC) Output Noise (R, G, B,) Crosstalk A/B MUX Crosstalk Group Delay (R, G, B,) Group Delay Deviation from Flatness (R, G, B,) fIN 4 fC, Note 3 Fullband Input of 0.5VP-P at 1 MHz Between any two Channels Input of 0.5VP-P at 3.58/4.43MHz 100kHz to 3.58MHz to 4.43MHz to 10MHz 24MHz FILTER: ML6426-3 f 1dB fc f0.8fc fSB NOISE XTALK XTALK T PD DT PD -1dB Bandwidth Flatness (R, G, B,) -3dB Bandwidth Flatness (R, G, B,) 0.8 x fC Attenuation StopBand Rejection (All Channels 4 fC) Output Noise (R, G, B,) Crosstalk A/B MUX Crosstalk Group Delay (R, G, B,) Group Delay Deviation from Flatness (R, G, B,) fIN 4 fC, Note 3 Fullband Input of 0.5VP-P at 1 MHz Between any two Channels Input of 0.5VP-P at 3.58/4.43MHz 100kHz to 3.58MHz to 4.43MHz to 10MHz 30MHz FILTER: ML6426-4 f 1dB fc f0.8fc fSB NOISE -1dB Bandwidth Flatness (R, G, B,) -3dB Bandwidth Flatness (R, G, B,) 0.8 x fC Attenuation StopBand Rejection (All Channels 4 fC) Output Noise (R, G, B,) fIN 4 fC, Note 3 Fullband 25C 25C 15.3 27 18 30 1.7 -40 1.0 33 MHz MHz dB dB mVRMS 25C 25C 13.6 21.6 16 24 1.7 -40 1.0 -55 -54 22 1 1 2 26.4 MHz MHz dB dB mVRMS dB dB ns ns ns ns 25C 25C 7.8 10.8 9.2 12 1.2 -40 1 -55 -54 40 1 1 7 13.2 MHz MHz dB dB mVRMS dB dB ns ns ns ns 70 4.0 8.0 9 ns ns ns ns
(Continued)
CONDITIONS MIN TYP MAX UNITS
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ML6426
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER 30MHz FILTER: ML6426-4 (Continued) XTALK XTALK T PD DT PD Crosstalk A/B MUX Crosstalk Group Delay (R, G, B,) Group Delay Deviation from Flatness (R, G, B,) 36MHz FILTER: ML6426-5 f1dB fc f0.8fc fSB NOISE XTALK XTALK T PD DT PD -1dB Bandwidth Flatness (R, G, B,) -3dB Bandwidth Flatness (R, G, B,) 0.8 x fC Attenuation StopBand Rejection (All Channels 4 fC) Output Noise (R, G, B,) Crosstalk A/B MUX Crosstalk Group Delay (R, G, B,) Group Delay Deviation from Flatness (R, G, B,) 48MHz FILTER: ML6426-6 f1dB fc f0.8fc fSB NOISE XTALK XTALK T PD DT PD -1dB Bandwidth Flatness (R, G, B,) -3dB Bandwidth Flatness (R, G, B,) 0.8 x fC Attenuation StopBand Rejection (All Channels 4 fC) Output Noise (R, G, B,) Crosstalk A/B MUX Crosstalk Group Delay (R, G, B,) Group Delay Deviation from Flatness (R, G, B,) fIN 4 fC, Note 3 Fullband Input of 0.5VP-P at 1 MHz Between any two Channels Input of 0.5VP-P at 3.58/4.43MHz 100kHz to 10MHz to 40MHz 25C 25C 25.5 43.2 30 48 1.2 -40 1.0 -55 -54 16 0.5 2 52.8 MHz MHz dB dB mVRMS dB dB ns ns ns fIN 4 fC, Note 3 Fullband Input of 0.5VP-P at 1 MHz Between any two Channels Input of 0.5VP-P at 3.58/4.43MHz 100kHz to 10MHz to 30MHz 25C 25C 17 32.4 20 36 2 -40 1.0 -55 -54 17 0.5 4 39.6 MHz MHz dB dB mVRMS dB dB ns ns ns Input of 0.5VP-P at 1 MHz Between any two Channels Input of 0.5VP-P at 3.58/4.43MHz 100kHz to 10MHz to 27MHz -55 -54 18 0.5 2 dB dB ns ns ns
(Continued)
CONDITIONS MIN TYP MAX UNITS
Note 1. Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions. Note 2. Sustained short circuit protection limited to 10 seconds. Note 3. 38dB is based on tester noise limits.
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ML6426
FUNCTIONAL DESCRIPTION
The ML6426 is a triple monolithic continuous time video filter designed for reconstructing video signals from an YUV/RGB video D/A source. The ML6426 is intended for use in AC coupled input and output applications. The filters approximate a 4th-order Butterworth characteristic with an optimization toward low overshoot and flat group delay. All outputs are capable of driving 2VP-P into AC coupled 150W video loads, with up to 35pF of load capacitance. All outputs are capable of driving a 75W load at 1VP-P. All channels are clamped during sync to establish the appropriate output voltage swing range (DC restore). Thus the input coupling capacitors do not behave according to the conventional RC time constant. In most applications, the ML6426's input coupling capacitors are only 0.1F. An external CMOS compatible HSYNC pulse is required which is Active High on the SYNC IN Pin. See Figure 2. During sync, the feedback clamp sources/sinks current to restore the DC level. The net result is that the average input current is zero. Any change in the input coupling capacitors' value will linearly affect the clamp response times. Each channel is essentially tilt-free. Each input is clamped by a feedback amp which responds to the output during sync. The ML6426 is robust and stable under all stated load and input conditions. Bypassing both VCC pins directly to ground ensures this performance.
5V 12 VCCO RINA/YINA RINB/YINB GINA/UINA GINB/UINB BINA/VINA BINB/VINB MUX TRANSCONDUCTANCE ERROR AMP A/B MUX 1 SYNCIN SYNC IN 16 ACTIVE HIGH DISABLE 15
+ -
5V 4 VCC 220F 75 13
0.1F RIN
2 5 6 7 8 9
MUX TRANSCONDUCTANCE ERROR AMP MUX TRANSCONDUCTANCE ERROR AMP
+ - + -
4th-ORDER FILTER A 0.5V 4th-ORDER FILTER B 0.5V 4th-ORDER FILTER C 0.5V
x2
ROUT/YOUT
R
0.1F GIN
x2
GOUT/UOUT
220F 75 11
G
0.1F BIN
x2
BOUT/VOUT
220F 75 10
B
GNDO 14
GND 3
Figure 1. Typical Application Schematic
VIH = 2.5V VIL = 1.0V
50% x VSYNC IN
PWMIN = 2S
Figure 2. SYNC IN Pulse Width
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ML6426
TYPICAL APPLICATIONS
RECONSTRUCTION FILTER SELECTION FOR HDTV AND VGA SIGNAL FILTERING The filtering requirements for HDTV and VGA standards vary depending on the resolution of the image to be displayed, and its refresh rate. The actual refresh rate of the display is not necessarily the same as the transmission rate of the frames of images. Some formats use a frame rate of 30Hz, but the display of those formats cannot be scanned onto the CRT at 30Hz. Excessive large area flicker would result. Such kinds of flicker can be seen on a PAL display with its brightness set high. To avoid this, the video will need to be stored in a frame buffer. This buffer already exists in the MPEG decoder of HDTV systems, so there is no cost penalty. The buffer is read out at twice the rate as the frame rate for 30Hz systems, thus getting us a refresh rate of 60Hz. Similar things are done for the 24Hz frame rate formats to boost them to a 60Hz refresh rate.
PIXELS 1920 1280 704 640
P=progressive scan, I=interlaced scan
VERTICAL LINES 1080 720 480 480
ASPECT RATIO 16:9 16:9 16:9 and 4:3 4:3
PICTURE TRANSMISSION RATE 60I, 30P, 24P 60P, 30P, 24P 60P, 60I, 30P,24P 60P, 60I, 30P,24P
Table 1: HDTV / Advanced TV Applications: (From Table 10.3 from ATSC document A54)
APPROXIMATE RECONSTRUCTION FILTER CUTOFF
PICTURE TRANSMISSION RATE (Note 2)
SMPTE 274M
1920 1920
1080 1080 720 480 (Note 1) 480 480 (Note 1) 480
VERTICAL LINES
PIXELS
60I 30P, 24P 60P, 30P, 24P 60I 60P, 30P, 24P 60I 60P, 30P, 24P
60Hz 60Hz 60Hz 60Hz 60Hz 60Hz 60Hz
35.3KHz 70.6KHz 47.1KHz 15.7KHz 31KHz 15.7KHz 31KHz
81MHz 162MHz 60MHz 13.5MHz 27MHz 24.5MHz 12.27MHz
40.5MHz 81MHz 30MHz 6.75MHz 13.5MHz 12MHz 6MHz
ML6426-6 N/A ML6426-5 ML6426-4 ML6426-1 ML6426-2 ML6426-4 ML6426-2 ML6426-1
SMPTE
1280 704 704 640 640
P=progressive scan, I=interlaced scan, na = not available Note 1: NTSC display rates, can be fed directly into NTSC encoder (set top box) Note 2: 60 Hz also includes 59.94Hz Note 3: custom frequencies ranging 3 to 6MHz can be special cut to order
Table 2: Choosing the Correct Reconstruction Filter and Video Amplifier for TV Applications, ML6426 options
MICRO LINEAR FILTER TO USE (Note 3)
APPROXIMATE HORIZONTAL RATE
APPROXIMATE SAMPLE CLOCK
DISPLAY REFRESH RATE (Note 2)
STANDARD
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ML6426
TYPICAL APPLICATIONS
(Continued) USING THE ML6426 IN MULTIPLE RESOLUTIONS Several ML6426 devices can be used in parallel to construct a selectable filter selection block ranging from frequencies between 6.7 MHz to 50MHz. Each ML6426 can be individually controlled via the disable pin. In a parallel configuration, as shown in Figure 3 and 7, several ML6426 devices can be used and selected via general purpose I/O or other logic to perform the proper reconstruction filtering for the resolution of choice. This configuration allows for a minimum of bill of materials and reduces cost. Micro Linears ML6426 EVAL Kit demonstrates multi-resolution designs. Furthermore, since the ML6426 pin-out is identical for all the options, the filters can be interchanged. This allows for ease of product migration to integrate newer resolutions to filter and drive various DAC outputs at different sampling frequencies. Pixel clock rates for the output D/A converters can be roughly determined from the Table 1. Don't forget that the deflection system of a CRT display needs retrace time for the vertical and horizontal. This retrace time can vary from one design of an HDTV set to another, as it only involves tradeoffs between the frame buffer in the MPEG decoder and the CRT deflection system. Allowing for 10% retrace time for the vertical and 20% for the horizontal, the appropriate Reconstruction Filter is summarized in Table 2. For VGA or RGB monitors, the following resolutions can use the corresponding Reconstruction Filter and Video Amplifier as shown in Table 3. Figures 4, 5, and 6 show system diagrams when the ML6426 provides a good solution. Figure 7 provides a more detailed description for advanced TV applications using various resolutions for legacy video, SDTV, and HDTV.
RECONSTRUCTION FILTER CUTOFF
HORIZONTAL RATE
REFRESH RATE (prog except noted)
VERTICAL LINES
SAMPLE CLOCK
PIXELS
640
480
800
600
1024
768
VGA VGA VGA SVGA SVGA SVGA SVGA XGA XGA XGA XGA SXGA SXGA UXGA
1280 1600
N/A = not available
1024 1200
60Hz 72Hz 75Hz 56Hz 60Hz 72Hz 75Hz 43Hz Interlaced 60Hz 70Hz 75Hz 75Hz 60Hz 60Hz
31.5kHz 37.9kHz 37.5kHz 35.1kHz 37.9kHz 48.1kHz 46.9kHz 35.5kHz 37.9kHz 56.5kHz 60kHz 80kHz
25.175MHz 31.5MHz 31.5MHz 36MHz 40MHz 50MHz 49.5MHz 44.9MHz 65MHz 75MHz 78.75MHz 135MHz 113MHz 166MHz
12.5MHz 15.5MHz 15.5MHz 18MHz 20MHz 25MHz 25MHz 23MHz 33MHz 37.5MHz 39.4MHz 68MHz 57MHz 83MHz
ML6426-2 ML6426-3 ML6426-3 ML6426-3 ML6426-3 ML6426-3 ML6426-3 ML6426-3 ML6426-5 ML6426-5 ML6426-6 na na na
Table 3: Choosing the Correct Reconstruction Filter and Video Amplifier for TV Applications, ML6426 options
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MICRO LINEAR FILTER TO USE
NAME
ML6426
GENERAL PURPOSE I/O
SELECT LOGIC
DISABLE/ENABLE LINES
5V 12 0.1F YIN/RIN 15 2 5 6 7 8 9 16 1 4 220F 13 ML6426-1 6.7MHz 11 220F 10 75 G/U
75
R/Y
0.1F UIN/GIN
220F 14 0.1F 3
75
B/V
VIN/BIN 12 15 2 5 6 7 8 9 16 1 4
SYNC IN
13 ML6426-2 12MHz 11 10
14
3
12 15 2 5 6 7 8 9 16 1
4
13 ML6426-5 36MHz 11 10
14
3
Figure 3. ATSC Digital Television Application
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ML6426
GRAPHIC PROCESSOR
FROM SAT OR CABLE
MPEG2 TRANSPORT AND DECODER
HDTV DECODER AND DISPLAY PROCESSOR
Y D/A ML6426 U V DIGITAL TV
Figure 4. Digital TV Receiver or HDTV Decoder Box
FROM CAMERA VCR
CV S-VIDEO ANALOG
VIDEO DECODER AND DISPLAY PROCESSOR
Y D/A RGB ML6426 U V RGB MONITOR
VIDEO ENCODER
YCrCb DIGITAL FROM DVD-ROM OR MEMORY
Figure 5. PC Graphics/Frame Grabber Editing Card
MRI, XRAY, ULTRASOUND, CT SCAN DSP DIGITAL YUV
D/A
ANALOG Y ML6426 U V MEDICAL IMAGING
Figure 6. PC MRI, XRAY, Ultrasound, CT Scan
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ML6426
5V GND C10 RINA/YINA R5 75 0.1F C2 1F C1 1F C9 0.1F FB1 FB2 GND
12
4
C 17 RINB/YINB R6 75 C 19 C 20 C 18
0.1F 2 RINA 0.1F 5 RINB
U1 ML6426-1
ROUT 13 C 41 220F
VCCO
VCC
4TH ORDER FILTER
R11 75
ROUT/YOUT
0.1F 6 GINA 0.1F 7 GINB
4TH ORDER FILTER
GOUT 11
C 42
220F
R12 75
GOUT/UOUT
C 21 C 22 GINA/UINA R7 75
0.1F 8 BINA 0.1F 9 BINB A/B 1 MUX 16 SYNC IN
4TH ORDER FILTER
BOUT 10
C 43
220F
R13 75
BOUT/VOUT
15 DISABLE
14 GNDO
C3 1F
GINB/UINB R8 75 C12 0.1F BINA/VINA R9 75 C 23 C 24 C 25 C 26 C 27 C 28 BINB/VINB R10 75 0.1F 2 RINA 0.1F 5 RINB 0.1F 6 GNA 0.1F 7 GNB 0.1F 8 BINA 0.1F 9 BINB 1 A/B MUX 16 SYNC IN C4 1F
R1 47k
12
VCCO
VCC
4
3 GND
C11 0.1F
U2 ML6426-3
15 DISABLE 14 GNDO 3 GND
ROUT GOUT BOUT
13 JP1 11 10 2 4 6 8 1 3 5 7 4
R2 47k
3 2 1
SWI
HYSYNC IN SW2 C 29 C 30 C 31 C 32 C 33 C 34
C14 0.1F
C6 1F
C5 1F
C13 0.1F
0
12
0.1F 2 RINA 0.1F 5 RINB 0.1F 6 GNA 0.1F 7 GNB 0.1F 8 BINA 0.1F 9 BINB 1 A/B MUX 16 SYNC IN
VCCO
VCC
4
U3 ML6426-4
15 DISABLE 14 GNDO 3 GND
ROUT GOUT BOUT
13 11 10
R3 47k
C16 0.1F
C8 1F
C7 1F
C15 0.1F
12 VCCO
C 35 C 36 C 37 C 38 C 39 C 40 0.1F 2 RINA 0.1F 5 RINB 0.1F 6 GNA 0.1F 7 GNB 0.1F 8 BINA 0.1F 9 BINB 1 A/B MUX 16 SYNC IN
VCC
4
UX ML6426-X
15 DISABLE 14 GNDO 3 GND
ROUT GOUT BOUT
13 11 10
R4 47k
Figure 7. Typical Applications Schematic
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ML6426
PERFORMANCE DATA
10 0 -10 AMPLITUDE (dB)
10 0 -10
AMPLITUDE (dB)
-20 -30 -40 -50 -60 -70 0.01
-20 -30 -40 -50 -60 -70 100k
0.1
1 FREQUENCY (MHz)
10
100
1M
10M
100M
FREQUENCY (MHz)
Figure 8. Passband Flatness all Outputs (Normalized) 6.7 MHz, ML6426CS-1
10 0 -10
AMPLITUDE (dB)
Figure 9. Passband Flatness all Outputs (Normalized) 12MHz, ML6426CS-2
10 0 -10 AMPLITUDE (dB) -20 -30 -40 -50 -60 -70 1M
-20 -30 -40 -50 -60 -70 1M
10M
100M
10M
100M
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 10. Passband Flatness all Outputs (Normalized) 24 MHz, ML6426CS-3
10 0 -10
Figure 11. Passband Flatness all Outputs (Normalized) 30 MHz, ML6426CS-4
10 0 -10
AMPLITUDE (dB)
AMPLITUDE (dB)
-20 -30 -40 -50 -60 -70 100k
-20 -30 -40 -50 -60 -70 10k
1M
10M FREQUENCY (Hz)
100M
1G
100k
1M
10M
100M
1G
FREQUENCY (Hz)
Figure 12. Passband Flatness all Outputs (Normalized) 36MHz, ML6426CS-5
Figure 13. Passband Flatness all Outputs (Normalized) 48MHz, ML6426CS-6
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ML6426
PERFORMANCE DATA
0 -10 -20 -30 AMPLITUDE (dB) -40 -50 -60 -70 -80 -90 -100 0 10 20 30 40 50 60 70 80 90 100 AMPLITUDE (dB)
(Continuied)
0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 0 10 20 30 40 50 60 70 80 90 100
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 14. Frequency Response All Outputs ML6426-CS-1
12 10 GROUP DELAY DEVIATION (ns)
Figure 17. Frequency Response All Outputs ML6426CS-2
10 8 GROUP DELAY DEVIATION (ns) 6 4 2 0 -2 -4 -6 -8
8 6 4 2 0 -2 -4 -6 -8 0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7.0 FREQUENCY (MHz)
-10
0
1
2
3
4
5
6
7
8
9
10
FREQUENCY (MHz)
Figure 15. Group Delay Deviation of Passband, All Outputs ML6426CS-1
14 12 GROUP DELAY DEVIATION (ns) 10 8 6 4 2 0 -2 -4 -6 0 10 20 30 40 50 60 70 80 90 100
Figure 18. Group Delay Deviation of Passband, All Outputs ML6426CS-2
12 10 GROUP DELAY DEVIATION (ns) 8 6 4 2 0 -2 -4 -6 -8 0 10 20 30 40 50 60 70 80 90 100
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 16. Group Delay Deviation All band, All Outputs ML6426CS-1
Figure 19. Group Delay Deviation All Band, All Outputs ML6426CS-2
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ML6426
PERFORMANCE DATA
0 -10 -20 -30 AMPLITUDE (dB) -40 -50 -60 -70 -80 -90 -100 0 10 20 30 40 50 60 70 80 90 100
(Continuied)
0 -10 -20 -30
AMPLITUDE (dB)
-40 -50 -60 -70 -80 -90 -100 0 10 20 30 40 50 60 70 80 90 100
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 20. Frequency Response All Outputs ML6426CS-3
10 8 GROUP DELAY DEVIATION (ns)
Figure 23. Frequency Response All Outputs ML6426CS-4
10 8
4 2 0 -2 -4 -6 -8 -10 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25
GROUP DELAY DEVIATION (ns)
6
6 4 2 0 -2 -4 -6 -8 -10 0 4 8 12 16 20 24 28 32 36 40
Figure 21. Group Delay Deviation of Passband, All Outputs ML6426CS-3
12 10 GROUP DELAY DEVIATION (ns)
FREQUENCY (MHz)
Figure 24. Group Delay Deviation of Passband, All Outputs ML6426CS-4
6 4 GROUP DELAY DEVIATION (ns) 2 0 -2 -4 -6 -8 -10 -12
FREQUENCY (MHz)
8 6 4 2 0 -2 -4 -6 -8 0 10 20 30 40 50 60 70 80 90 100
-14
0
10
20
30
40
50
60
70
80
90 100
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 22. Group Delay Dviation All Band, All Outputs ML6426CS-3
Figure 25. Group Delay Deviation All Band, All Outputs ML6426CS-4
14
November, 1999
ML6426
PERFORMANCE DATA
0 -10 -20 -30 AMPLITUDE (dB) -40 -50 -60 -70 -80 -90 -100 0 10 20 30 40 50 60 70 80 90 100 AMPLITUDE (dB)
(Continuied)
0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 0 12 24 36 48 60 72 84 96 108 120
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 26. Frequency Response All Outputs ML6426-CS-5
12 10 GROUP DELAY DEVIATION (ns)
Figure 29. Frequency Response All Outputs ML6426CS-6
10 8 GROUP DELAY DEVIATION (ns) 6 4 2 0 -2 -4 -6 -8
8 6 4 2 0 -2 -4 -6 -8 0 5 10 15 20 25 30 35 40 45 50
-10
0
5
10
15
20
25
30
35
40
45
50
Figure 27. Group Delay Deviation of Passand, All Outputs ML6426CS-5
12 10 GROUP DELAY DEVIATION (ns)
FREQUENCY (MHz)
Figure 30. Group Delay Deviation of Passand, All Outputs ML6426CS-6
10 8 GROUP DELAY DEVIATION (ns) 6 4 2 0 -2 -4 -6 -8
FREQUENCY (MHz)
8 6 4 2 0 -2 -4 -6 -8 0 10 20 30 40 50 60 70 80 90 100
-10
0
10
20
30
40
50
60
70
80
90 100
FREQUENCY (MHz)
FREQUENCY (MHz)
Figure 28. Group Delay Deviation All band, All Outputs ML6426CS-5
Figure 31. Group Delay Deviation All Band, All Outputs ML6426CS-6
November, 1999
15
ML6426
PHYSICAL DIMENSIONS
Package: S16N 16-Pin Narrow SOIC
0.386 - 0.396 (9.80 - 10.06) 16
PIN 1 ID
0.148 - 0.158 0.228 - 0.244 (3.76 - 4.01) (5.79 - 6.20)
1 0.017 - 0.027 (0.43 - 0.69) (4 PLACES) 0.050 BSC (1.27 BSC) 0.059 - 0.069 (1.49 - 1.75) 0 - 8
0.055 - 0.061 (1.40 - 1.55)
0.012 - 0.020 (0.30 - 0.51)
SEATING PLANE
0.004 - 0.010 (0.10 - 0.26)
0.015 - 0.035 (0.38 - 0.89)
0.006 - 0.010 (0.15 - 0.26)
16
November, 1999
ML6426
ORDERING INFORMATION
PART NUMBER ML6426CS-1 ML6426CS-2 ML6426CS-3 ML6426CS-4 ML6426CS-5 ML6426CS-6 ML6426CS-15 CUT-OFF FREQUENCY 6.7MHz 12MHz 24MHz 30MHz 36MHz 48MHz 15MHz TEMPERATURE RANGE 0C to 70C 0C to 70C 0C to 70C 0C to 70C 0C to 70C 0C to 70C 0C to 70C PACKAGE 16-Pin Narrow SOIC (S16N) 16-Pin Narrow SOIC (S16N) 16-Pin Narrow SOIC (S16N) 16-Pin Narrow SOIC (S16N) 16-Pin Narrow SOIC (S16N) 16-Pin Narrow SOIC (S16N) 16-Pin Narrow SOIC (S16N)
Micro Linear Corporation 2092 Concourse Drive San Jose, CA 95131 Tel: (408) 433-5200 Fax: (408) 432-0295 www.microlinear.com
(c) Micro Linear 2000. is a registered trademark of Micro Linear Corporation. All other trademarks are the property of their respective owners. Products described herein may be covered by one or more of the following U.S. patents: 4,897,611; 4,964,026; 5,027,116; 5,281,862; 5,283,483; 5,418,502; 5,508,570; 5,510,727; 5,523,940; 5,546,017; 5,559,470; 5,565,761; 5,592,128; 5,594,376; 5,652,479; 5,661,427; 5,663,874; 5,672,959; 5,689,167; 5,714,897; 5,717,798; 5,742,151; 5,747,977; 5,754,012; 5,757,174; 5,767,653; 5,777,514; 5,793,168; 5,798,635; 5,804,950; 5,808,455; 5,811,999; 5,818,207; 5,818,669; 5,825,165; 5,825,223; 5,838,723; 5.844,378; 5,844,941. Japan: 2,598,946; 2,619,299; 2,704,176; 2,821,714. Other patents are pending. Micro Linear makes no representations or warranties with respect to the accuracy, utility, or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. No license, express or implied, by estoppel or otherwise, to any patents or other intellectual property rights is granted by this document. The circuits contained in this document are offered as possible applications only. Particular uses or applications may invalidate some of the specifications and/or product descriptions contained herein. The customer is urged to perform its own engineering review before deciding on a particular application. Micro Linear assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Micro Linear products including liability or warranties relating to merchantability, fitness for a particular purpose, or infringement of any intellectual property right. Micro Linear products are not designed for use in medical, life saving, or life sustaining applications. DS6426-01
November, 1999
17

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