www.fairchildsemi.com ML6426 High Bandwidth Triple Video Filters with Buffered Outputs for RGB or YUV Features General Description • 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, and 36MHz 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 0.4º differential phase on all channels 0.8% total harmonic distortion on all channels • 2kV ESD protection 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, and 36MHz. Each channel contains a 4thorder 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 150Ω load. All channels have a gain of 2 (6dB) at 1VP-P input levels. Block Diagram 2 5 6 7 8 9 12 4 VCCO VCC RINA/YINA RINB/YINB MUX TRANSCONDUCTANCE ERROR AMP GINA/UINA GIN/UINB – TRANSCONDUCTANCE ERROR AMP + – A/B MUX + – 4th-ORDER FILTER B ×2 4th-ORDER FILTER C ×2 ROUT/YOUT GOUT/UOUT 13 11 0.5V MUX TRANSCONDUCTANCE ERROR AMP ×2 0.5V MUX BINA/VINA BINB/VINB + 4th-ORDER FILTER A BOUT/VOUT 10 0.5V 1 SYNCIN 16 ML6426-1 DISABLE GNDO GND 15 14 3 ML6426-2 ML6426-3 ML6426-4 ML6426-5 ML6426-15 Filter A 6.7MHz 12MHz 24MHz 30MHz 36MHz 15MHz Filter B 6.7MHz 12MHz 24MHz 30MHz 36MHz 15MHz Filter C 6.7MHz 12MHz 24MHz 30MHz 36MHz 15MHz REV. 3A August 2004 ML6426 DATA SHEET Pin Configuration ML6426 16-Pin Narrow SOIC (S16N) A/B MUX 1 16 SYNC IN RINA/YINA 2 15 DISABLE GND 3 14 GNDO VCC 4 13 ROUT/YOUT RINB/YINB 5 12 VCCO GINA/UINA 6 11 GOUT/UOUT GINB/UINB 7 10 BOUT/VOUT BINA/VINA 8 9 BINB/VINB TOP VIEW Pin Description PIN 2 NAME FUNCTION 1 A/B MUX Logic input pin to select between Bank <A> and Bank <B> video inputs. This pin is internally pulled high. 2 RINA/YINA Unfiltered analog R- or Y-channel input for Bank <A>. Sync must be provided at SYNC IN pin. 3 GND Analog ground 4 VCC Analog 5V supply 5 RINB/YINB Unfiltered analog R- or Y-channel input for Bank <B>. Sync must be provided at SYNC IN pin. 6 GINA/UINA Unfiltered analog G- or U-channel input for Bank <A>. Sync must be provided at SYNC IN pin. 7 GINB/UINB Unfiltered analog G- or U-channel input for Bank <B>. Sync must be provided at SYNC IN pin. 8 BINA/VINA Unfiltered analog B- or V-channel input for Bank <A>. Sync must be provided at SYNC IN pin. 9 BINB/VINB Unfiltered analog B- or V-channel input for Bank <B>. Sync must be provided at SYNC IN pin. 10 BOUT Analog B or V-channel output 11 GOUT Analog G or U-channel output 12 VCCO 5V power supply for output buffers 13 ROUT Analog R or Y-channel output 14 GNDO Analog ground 15 DISABLE Disable/Enable pin. Turns the chip off when logic high. Internally pulled low. 16 SYNC IN Input for an external H-sync logic signal for filter channels. CMOS level input. Active High. REV. 3A August 2004 DATA SHEET 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. Parameter Min. Max. Unit VCC –0.3 7 V Junction Temperature 150 °C >2000 V GND – 0.3 VCC + 0.3 V –65 150 °C Lead Temperature (Soldering, 10 sec) 260 °C Thermal Resistance (θJA) 100 °C/W Max. Unit 0 70 °C 4.5 5.5 V ESD Analog and Digital I/O Storage Temperature Range Operating Conditions Parameter Min. Temperature Range VCC Range Electrical Characteristics Unless otherwise specified, VCC = 5V±10%, TA = Operating Temperature Range (Note 1) Symbol Parameter Conditions Min Typ Max Units General ICC Supply Current No Load (VCC = 5.5V) 52 80 mA AV Low Frequency Gain (R, G, B) VIN = 100mVP-P at 100KHz 5.34 6.0 6.65 dB VOUT Output Level during Sync (R, G, B,) Output Capability DURING SYNC 0.7 0.9 1.2 V tCLAMP Clamp Response Time Settled to Within 10mV, CIN = 0.1µF VI RL = 150Ω, AC-coupled@1MHz 2 VP-P 10 ms Input Signal Dynamic Range (R, G, B,) AC Coupled 1.4 VP-P OS Peak Overshoot (R, G, B,) 2VP-P Output Pulse 4.3 % CL Output Load Capacitance (R, G, B,) All Outputs Output Load Drive Capability, per Pin (YUV or RGB Outputs) One Load is 150Ω 2 loads dG Differential Gain (R, G, B,) All Outputs at fC/2 0.4 % dφ Differential Phase (R, G, B,) All Outputs at fC/2 0.4 ° THD Output Distortion (R, G, B,) VOUT = 2VP-P at 1 MHz 0.8 % PSRR PSRR (R, G, B,) 0.5VP-P (100kHz) at VCC 35 dB ISC Output Short Circuit Current (R, G, B,) Note 2 120 mA VIH Input Voltage Logic High DISABLE, SYNC IN VIL Input Voltage Logic Low DISABLE, SYNC IN TMUX Input Mux Data Valid Time A/B Mux Pin Valid High or Low REV. 3A August 2004 35 2.5 pF V 1.0 2 V µs 3 ML6426 DATA SHEET Electrical Characteristics (continued) Unless otherwise specified, VCC = 5V±10%, TA = Operating Temperature Range (Note 1) Symbol Parameter Conditions Min Typ Max Units 4.8 MHz 6.7MHz Filter: ML6426-1 f1dB –1dB Bandwidth Flatness (R, G, B,) 25°C 4.0 fc –3dB Bandwidth Flatness (R, G, B,) 25°C 6.0 f0.8fc 0.8 x fC Attenuation fSB StopBand Rejection (All Channels ≥ 4 fC) fIN ≥ 4 fC, Note 3 NOISE Output Noise (R, G, B,) XTALK 6.7 MHz 1.5 dB –42 dB Fullband 1.0 mVRMS Crosstalk Input of 0.5VP-P at 1 MHz Between any two Channels –55 dB XTALK A/B MUX Crosstalk Input of 0.5VP-P at 3.58/4.43MHz –54 dB TPD Group Delay (R, G, B,) 100kHz 70 ns ∆TPD Group Delay Deviation from Flatness (R, G, B,) to 3.58MHz 4.0 ns to 4.43MHz 8.0 ns 9 ns –38 to 10MHz 12MHz Filter: ML6426-2 f1dB –1dB Bandwidth Flatness (R, G, B,) 25°C 7.8 9.2 MHz fc –3dB Bandwidth Flatness (R, G, B,) 25°C 10.8 12 MHz f0.8fc 0.8 x fC Attenuation fSB StopBand Rejection (All Channels ≥ 4 fC) fIN ≥ 4 fC, Note 3 1.2 dB –40 dB NOISE Output Noise (R, G, B,) Fullband 1 mVRMS XTALK Crosstalk Input of 0.5VP-P at 1 MHz Between any two Channels –55 dB XTALK A/B MUX Crosstalk Input of 0.5VP-P at 3.58/4.43MHz –54 dB TPD Group Delay (R, G, B,) 100kHz 40 ns ∆TPD Group Delay Deviation from Flatness (R, G, B,) to 3.58MHz 1 ns to 4.43MHz 1 ns to 10MHz 7 ns 24MHz Filter: ML6426-3 4 f1dB –1dB Bandwidth Flatness (R, G, B,) 25°C 13.6 16 MHz fc –3dB Bandwidth Flatness (R, G, B,) 25°C 21.6 24 MHz f0.8fc 0.8 x fC Attenuation 1.7 dB fSB StopBand Rejection (All Channels ≥ 4 fC) fIN ≥ 4 fC, Note 3 –40 dB NOISE Output Noise (R, G, B,) Fullband 1.0 mVRMS XTALK Crosstalk Input of 0.5VP-P at 1 MHz Between any two Channels –55 dB XTALK A/B MUX Crosstalk Input of 0.5VP-P at 3.58/4.43MHz -54 dB TPD Group Delay (R, G, B,) 100kHz 22 ns ∆TPD Group Delay Deviation from Flatness (R, G, B,) to 3.58MHz 1 ns to 4.43MHz 1 ns to 10MHz 2 ns REV. 3A August 2004 DATA SHEET ML6426 Electrical Characteristics (continued) Unless otherwise specified, VCC = 5V±10%, TA = Operating Temperature Range (Note 1) Symbol Parameter Conditions Min Typ Max Units 18 MHz 30MHz Filter: ML6426-4 f1dB –1dB Bandwidth Flatness (R, G, B,) 25°C 15.3 fc –3dB Bandwidth Flatness (R, G, B,) 25°C 27 f0.8fc 0.8 x fC Attenuation fSB StopBand Rejection (All Channels ≥ 4 fC) NOISE 30 MHz 1.7 dB fIN ≥ 4 fC, Note 3 -40 dB Output Noise (R, G, B,) Fullband 1.0 mVRMS XTALK Crosstalk Input of 0.5VP-P at 1 MHz Between any two Channels -55 dB XTALK A/B MUX Crosstalk Input of 0.5VP-P at 3.58/4.43MHz -54 dB TPD Group Delay (R, G, B,) 100kHz 18 ns ∆TPD Group Delay Deviation from Flatness (R, G, B,) to 10MHz 0.5 ns to 27MHz 2 ns 36MHz Filter: ML6426-5 f1dB –1dB Bandwidth Flatness (R, G, B,) 25°C 17 20 MHz fc –3dB Bandwidth Flatness (R, G, B,) 25°C 32.4 36 MHz f0.8fc 0.8 x fC Attenuation 2 dB fSB StopBand Rejection (All Channels ≥ 4 fC) fIN ≥ 4 fC, Note 3 –40 dB NOISE Output Noise (R, G, B,) Fullband 1.0 mVRMS XTALK Crosstalk Input of 0.5VP-P at 1 MHz Between any two Channels –55 dB XTALK A/B MUX Crosstalk Input of 0.5VP-P at 3.58/4.43MHz –54 dB TPD Group Delay (R, G, B,) 100kHz 17 ns ∆TPD Group Delay Deviation from Flatness (R, G, B,) to 10MHz 0.5 ns to 30MHz 4 ns 15MHz Filter: ML6426-15 f1dB –1dB Bandwidth Flatness (R, G, B,) 25°C 10.8 12.2 MHz fc –3dB Bandwidth Flatness (R, G, B,) 25°C 13.8 15 MHz f0.8fc 0.8 x fC Attenuation 1.2 dB fSB StopBand Rejection (All Channels ≥ 4 fC) fIN ≥ 4 fC, Note 3 –40 dB NOISE Output Noise (R, G, B,) Fullband 1.0 mVRMS XTALK Crosstalk Input of 0.5VP-P at 1 MHz Between any two Channels –55 dB XTALK A/B MUX Crosstalk Input of 0.5VP-P at 3.58/4.43MHz –54 dB TPD Group Delay (R, G, B,) 100kHz 40 ns ∆TPD Group Delay Deviation from Flatness (R, G, B,) to 3.58MHz 1 ns to 4.43MHz 1 ns to 10MHz 9 ns Notes 1. Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions. 2. Sustained short circuit protection limited to 10 seconds. 3. 38dB is based on tester noise limits. REV. 3A August 2004 5 ML6426 DATA SHEET Functional Description conventional RC time constant. In most applications, the ML6426's input coupling capacitors are only 0.1µF. An external CMOS compatible HSYNC pulse is required which is Active High on the SYNC IN Pin. See Figure 2. 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. 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. 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 150Ω video loads, with up to 35pF of load capacitance. All outputs are capable of driving a 75Ω load at 1VP-P. Each channel is essentially tilt-free. Each input is clamped by a feedback amp which responds to the output during sync. 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 The ML6426 is robust and stable under all stated load and input conditions. Bypassing both VCC pins directly to ground ensures this performance. 5V 0.1µF RIN 2 5 0.1µF GIN 6 7 0.1µF BIN 8 9 5V 12 4 VCCO VCC RINA/YINA RINB/YINB MUX TRANSCONDUCTANCE ERROR AMP GINA/UINA GINB/UINB – TRANSCONDUCTANCE ERROR AMP + – TRANSCONDUCTANCE ERROR AMP + – 4th-ORDER FILTER B ×2 4th-ORDER FILTER C ×2 ROUT/YOUT GOUT/UOUT BOUT/VOUT 220µF 75Ω R 220µF 75Ω G 220µF 75Ω B 13 11 0.5V MUX A/B MUX ×2 0.5V MUX BINA/VINA BINB/VINB + 4th-ORDER FILTER A 10 0.5V 1 SYNCIN SYNC IN ACTIVE HIGH 16 DISABLE GNDO GND 15 14 3 Figure 1. Typical Application Schematic VIH = 2.5V VIL = 1.0V 50% x VSYNC IN PWMIN = 2µS Figure 2. SYNC IN Pulse Width 6 REV. 3A August 2004 DATA SHEET 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. Table 1. HDTV / Advanced TV Applications: (From Table 10.3 from ATSC document A54) Pixels Vertical Lines Aspect Ratio Picture Transmission Rate 1920 1080 16:9 60I, 30P, 24P 1280 720 16:9 60P, 30P, 24P 704 480 16:9 and 4:3 60P, 60I, 30P, 24P 640 480 4:3 60P, 60I, 30P, 24P P=progressive scan, I=interlaced scan Picture Transmission Rate (Note 2) Display Refresh Rate (Note 2) Approximate Horizontal Rate Approximate Sample Clock Approximate Reconstruction Filter Cutoff Fairchild Filter to Use 1920 1080 30P, 24P 60Hz 70.6KHz 162MHz 81MHz N/A 1280 720 60P, 30P, 24P 60Hz 47.1KHz 60MHz 30MHz ML6426-5 ML6426-4 704 480 (Note 1) 60I 60Hz 15.7KHz 13.5MHz 6.75MHz ML6426-1 704 480 60P, 30P, 24P 60Hz 31KHz 27MHz 13.5MHz ML6426-2 ML6426-4 640 480 (Note 1) 60I 60Hz 15.7KHz 24.5MHz 12MHz ML6426-2 640 480 60P, 30P, 24P 60Hz 31KHz 12.27MHz 6MHz ML6426-1 (Note 3) Vertical Lines SMPTE Pixels Standard Table 2. Choosing the Correct Reconstruction Filter and Video Amplifier for TV Applications, ML6426 options P=progressive scan, I=interlaced scan, na = not available Notes 1. NTSC display rates, can be fed directly into NTSC encoder (set top box) 2. 60 Hz also includes 59.94Hz 3. Custom frequencies ranging ± 3 to 6MHz can be special cut to order REV. 3A August 2004 7 ML6426 DATA SHEET 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. 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. Fairchild’s 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. 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. Sample Clock Reconstruction Filter Cutoff Fairchild Filter to Use ML6426-2 VGA 72Hz 37.9kHz 31.5MHz 15.5MHz ML6426-3 480 VGA 800 1024 600 768 (Prog except noted) 12.5MHz 640 Refresh Rate 25.175MHz Name 31.5kHz Vertical Lines 60Hz Pixels Horizontal Rate Table 3. Choosing the Correct Reconstruction Filter and Video Amplifier for TV Applications, ML6426 options VGA 75Hz 37.5kHz 31.5MHz 15.5MHz ML6426-3 SVGA 56Hz 35.1kHz 36MHz 18MHz ML6426-3 SVGA 60Hz 37.9kHz 40MHz 20MHz ML6426-3 SVGA 72Hz 48.1kHz 50MHz 25MHz ML6426-3 SVGA 75Hz 46.9kHz 49.5MHz 25MHz ML6426-3 XGA 43Hz Interlaced 35.5kHz 44.9MHz 23MHz ML6426-3 XGA 60Hz 37.9kHz 65MHz 33MHz ML6426-5 XGA 70Hz 56.5kHz 75MHz 37.5MHz ML6426-5 80kHz 135MHz 68MHz na 1280 1024 SXGA 75Hz SXGA 60Hz 113MHz 57MHz na 1600 1200 UXGA 60Hz 166MHz 83MHz na N/A = not available 8 REV. 3A August 2004 DATA SHEET ML6426 GENERAL PURPOSE I/O SELECT LOGIC DISABLE/ENABLE LINES 5V 12 0.1µF YIN/RIN 0.1µF UIN/GIN 15 2 5 6 7 8 9 16 1 4 220µF 13 ML6426-1 6.7MHz R/Y 11 220µF 10 3 12 4 75Ω G/U 220µF 14 75Ω 75Ω B/V 0.1µF VIN/BIN SYNC IN 15 2 5 6 7 8 9 16 1 15 2 5 6 7 8 9 16 1 13 ML6426-2 12MHz 11 10 14 3 12 4 13 ML6426-5 36MHz 11 10 14 3 Figure 3. ATSC Digital Television Application REV. 3A August 2004 9 ML6426 DATA SHEET GRAPHIC PROCESSOR FROM SAT OR CABLE MPEG2 TRANSPORT AND DECODER Y HDTV DECODER AND DISPLAY PROCESSOR D/A U ML6426 DIGITAL TV V Figure 4. Digital TV Receiver or HDTV Decoder Box FROM CAMERA VCR CV S-VIDEO ANALOG Y VIDEO DECODER AND DISPLAY PROCESSOR RGB D/A ML6426 U RGB MONITOR V 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 10 REV. 3A August 2004 DATA SHEET ML6426 5V FB1 FB2 GND 0.1µF C2 C1 1µF 1µF C 18 0.1µF 2 RINA 0.1µF 5 RINB C 19 0.1µF 6 GINA C 20 0.1µF 7 GINB C 21 0.1µF 8 BINA C 22 0.1µF 9 BINB C 17 RINB/YINB VCCO 12 R5 75Ω C9 0.1µF 4 C10 RINA/YINA U1 ML6426-1 VCC GND ROUT 13 4TH ORDER FILTER C 41 220µF R11 75Ω ROUT/YOUT C 42 220µF R12 75Ω GOUT/UOUT C 43 220µF R13 75Ω BOUT/VOUT R6 75Ω 15 DISABLE 16 SYNC IN 3 GND A/B 1 MUX R7 75Ω BOUT 10 4TH ORDER FILTER 14 GNDO GINA/UINA GOUT 11 4TH ORDER FILTER R1 47kΩ GINB/UINB R8 75Ω C12 0.1µF C4 C3 1µF 1µF C11 0.1µF C 26 C 27 C 28 BINB/VINB R10 75Ω 4 ROUT U2 ML6426-3 GOUT BOUT 13 JP1 11 10 3 GND C 25 0.1µF 2 RINA 0.1µF 5 RINB 0.1µF 6 GNA 0.1µF 7 GNB 0.1µF 8 BINA 0.1µF 9 BINB 1 A/B MUX 16 SYNC IN 14 GNDO C 24 15 DISABLE C 23 VCCO R9 75Ω VCC 12 BINA/VINA 2 1 4 3 6 5 8 7 4 R2 47kΩ 3 2 SWI 1 C14 C6 C5 1µF 1µF 0 C13 HYSYNC IN C 33 C 34 ROUT U3 ML6426-4 GOUT BOUT 13 11 10 3 GND C 32 14 GNDO C 31 0.1µF 2 RINA 0.1µF 5 RINB 0.1µF 6 GNA 0.1µF 7 GNB 0.1µF 8 BINA 0.1µF 9 BINB 1 A/B MUX 16 SYNC IN 15 DISABLE C 30 VCCO C 29 4 12 SW2 0.1µF VCC 0.1µF R3 47kΩ 1µF C 39 C 40 ROUT UX ML6426-X GOUT BOUT 13 11 10 3 GND C 38 14 GNDO C 37 0.1µF 2 RINA 0.1µF 5 RINB 0.1µF 6 GNA 0.1µF 7 GNB 0.1µF 8 BINA 0.1µF 9 BINB 1 A/B MUX 16 SYNC IN 0.1µF VCC C 36 VCCO C 35 C15 4 C7 1µF 12 C8 15 DISABLE C16 0.1µF R4 47kΩ Figure 7. Typical Applications Schematic REV. 3A August 2004 11 ML6426 DATA SHEET Performance Data 10 10 0 0 –10 AMPLITUDE (dB) AMPLITUDE (dB) –10 –20 –30 –40 –20 –30 –40 –50 –50 –60 –60 –70 0.01 0.1 10 1 –70 10k 100 FREQUENCY (MHz) 10 0 0 –10 –10 AMPLITUDE (dB) AMPLITUDE (dB) 10M 100M 1G Figure 9. Passband Flatness all Outputs (Normalized) 12 MHz, ML6426CS-2 10 –20 –30 –40 –20 –30 –40 –50 –50 –60 –60 10M 1M FREQUENCY (Hz) Figure 8. Passband Flatness all Outputs (Normalized) 6.7 MHz, ML6426CS-1 –70 1M 100k –70 1M 100M 10M 100M FREQUENCY (MHz) FREQUENCY (MHz) Figure 10. Passband Flatness all Outputs (Normalized) 24 MHz, ML6426CS-3 Figure 11. Passband Flatness all Outputs (Normalized) 30 MHz, ML6426CS-4 10 0 AMPLITUDE (dB) –10 –20 –30 –40 –50 –60 –70 100k 1M 10M 100M 1G FREQUENCY (Hz) Figure 12. Passband Flatness all Outputs (Normalized) 36MHz, ML6426CS-5 12 REV. 3A August 2004 DATA SHEET ML6426 12 10 GROUP DELAY DEVIATION (ns) 0 –10 –20 AMPLITUDE (dB) –30 –40 –50 –60 –70 –80 8 6 4 2 0 –2 –4 –6 –90 –8 –100 0 10 20 30 40 50 60 70 80 0 90 100 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7.0 FREQUENCY (MHz) FREQUENCY (MHz) Figure 14. Group Delay Deviation of Passband, All Outputs ML6426CS-1 14 0 12 –10 10 –20 8 –30 AMPLITUDE (dB) GROUP DELAY DEVIATION (ns) Figure 13. Frequency Response All Outputs ML6426-CS-1 6 4 2 –40 –50 –60 0 –70 –2 –80 –4 –90 –6 –100 0 10 20 30 40 50 60 70 80 0 90 100 10 20 Figure 15. Group Delay Deviation All band, All Outputs ML6426CS-1 40 50 60 70 80 90 100 Figure 16. Frequency Response All Outputs ML6426CS-2 10 12 8 10 GROUP DELAY DEVIATION (ns) GROUP DELAY DEVIATION (ns) 30 FREQUENCY (MHz) FREQUENCY (MHz) 6 4 2 0 –2 –4 –6 8 6 4 2 0 –2 –4 –6 –8 –8 –10 0 1 2 3 4 5 6 7 8 9 10 FREQUENCY (MHz) Figure 17. Group Delay Deviation of Passband, All Outputs ML6426CS-2 REV. 3A August 2004 0 10 20 30 40 50 60 70 80 90 100 FREQUENCY (MHz) Figure 18. Group Delay Deviation All Band, All Outputs ML6426CS-2 13 ML6426 DATA SHEET 10 8 GROUP DELAY DEVIATION (ns) 0 –10 –20 AMPLITUDE (dB) –30 –40 –50 –60 –70 –80 –90 6 4 2 0 –2 –4 –6 –8 –100 –10 0 10 20 30 40 50 60 70 80 90 100 0 2.5 5 FREQUENCY (MHz) 12 0 10 –10 8 –20 6 –30 AMPLITUDE (dB) GROUP DELAY DEVIATION (ns) Figure 20. Group Delay Deviation of Passband, All Outputs ML6426CS-3 4 2 0 –40 –50 –60 –2 –70 –4 –80 –6 –90 –8 –100 0 10 20 30 40 50 60 70 80 90 100 0 10 20 FREQUENCY (MHz) 30 40 50 60 70 80 90 100 FREQUENCY (MHz) Figure 21. Group Delay Deviation All Band, All Outputs ML6426CS-3 Figure 22. Frequency Response All Outputs ML6426CS-4 10 6 8 4 GROUP DELAY DEVIATION (ns) GROUP DELAY DEVIATION (ns) 10 12.5 15 17.5 20 22.5 25 FREQUENCY (MHz) Figure 19. Frequency Response All Outputs ML6426CS-3 6 4 2 0 –2 –4 –6 2 0 –2 –4 –6 –8 –10 –12 –8 –14 –10 0 4 8 12 16 20 24 28 32 36 40 FREQUENCY (MHz) Figure 23. Group Delay Deviation of Passband, All Outputs ML6426CS-4 14 7.5 0 10 20 30 40 50 60 70 80 90 100 FREQUENCY (MHz) Figure 24. Group Delay Deviation All Band, All Outputs ML6426CS-4 REV. 3A August 2004 DATA SHEET ML6426 12 –10 10 GROUP DELAY DEVIATION (ns) 0 –20 AMPLITUDE (dB) –30 –40 –50 –60 –70 –80 –90 8 6 4 2 0 –2 –4 –6 –100 –8 0 10 20 30 40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 40 45 50 FREQUENCY (MHz) FREQUENCY (MHz) Figure 25. Frequency Response All Outputs ML6426-CS-5 Figure 26. Group Delay Deviation of Passband, All Outputs ML6426CS-5 12 GROUP DELAY DEVIATION (ns) 10 8 6 4 2 0 –2 –4 –6 –8 0 10 20 30 40 50 60 70 80 90 100 FREQUENCY (MHz) Figure 27. Group Delay Deviation All band, All Outputs ML6426CS-5 REV. 3A August 2004 15 ML6426 DATA SHEET Mechanical Dimensions Package: S16N 16-Pin Narrow SOIC 0.386 - 0.396 (9.80 - 10.06) 16 0.148 - 0.158 0.228 - 0.244 (3.76 - 4.01) (5.79 - 6.20) PIN 1 ID 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) 16 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) REV. 3A August 2004 ML6426 DATA SHEET Ordering Information Model Part Number Cuttoff Freq Lead Free Package Container Pack Quantity ML6426 ML6426CS1 6.7MHz SOIC-16 (Narrow) Rail 48 ML6426 ML6426CS1X 6.7MHz SOIC-16 (Narrow) Reel 2500 ML6426 ML6426CS1X_NL 6.7MHz SOIC-16 (Narrow) Reel 2500 ML6426 ML6426CS2 12MHz SOIC-16 (Narrow) Rail 48 ML6426 ML6426CS2X 12MHz SOIC-16 (Narrow) Reel 2500 ML6426 ML6426CS3 24MHz SOIC-16 (Narrow) Rail 48 ML6426 ML6426CS3X 24MHz SOIC-16 (Narrow) Reel 2500 ML6426 ML6426CS4 30MHz SOIC-16 (Narrow) Raill 48 ML6426 ML6426CS4X 30MHz SOIC-16 (Narrow) Reel 2500 ML6426 ML6426CS4X_NL 30MHz SOIC-16 (Narrow) Reel 2500 ML6426 ML6426CS5 36MHz SOIC-16 (Narrow) Rail 48 ML6426 ML6426CS5X 36MHz SOIC-16 (Narrow) Reel 2500 ML6426 ML6426CS15 15MHz SOIC-16 (Narrow) Rail 48 ML6426 ML6426CS15X 15MHz SOIC-16 (Narrow) Reel 2500 Temperature range for all parts: 0°C to +70°C DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE 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 perform 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. www.fairchildsemi.com 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. © 2004 Fairchild Semiconductor Corporation