September 1999 PRELIMINARY ML6426 High Bandwidth Triple Video Filters with Buffered Outputs for RGB or YUV GENERAL DESCRIPTION FEATURES 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. ■ 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 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. ■ 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 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. ■ 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 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 Filter A Filter B Filter C ML6426-1 6.7MHz 6.7MHz 6.7MHz DISABLE GNDO GND 15 14 3 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 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 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. 8 BINA/VINA Unfiltered analog B- or V-channel input for Bank <A>. Sync must be provided at SYNC IN pin. 2 RINA/YINA Unfiltered analog R- or Y-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. 3 GND Analog ground 10 BOUT Analog B or V-channel output 4 VCC Analog 5V supply 11 GOUT Analog G or U-channel output 5 RINB/YINB Unfiltered analog R- or Y-channel input for Bank <B>. Sync must be provided at SYNC IN pin. 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. 6 7 2 PIN GINA/UINA Unfiltered analog G- or U-channel input for Bank <A>. Sync must be provided at SYNC IN pin. GINB/UINB Unfiltered analog G- or U-channel input for Bank <B>. Sync must be provided at SYNC IN pin. November, 1999 NAME FUNCTION 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. Storage Temperature Range ..................... –65°C to 150°C Lead Temperature (Soldering, 10 sec) ..................... 260°C Thermal Resistance (qJA) .................................... 100°C/W VCC ................................................................................ –0.3V to 7V Junction Temperature .............................................. 150°C ESD ..................................................................... >2000V Analog and Digital I/O ........... GND –0.3V to VCC + 0.3V Temperature Range ....................................... 0°C to 70°C VCC Range ................................................... 4.5V to 5.5V OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS Unless otherwise specified, VCC = 5V±10%, TA = Operating Temperature Range (Note 1) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS 52 80 mA GENERAL ICC Supply Current No Load (VCC=5.5V) AV Low Frequency Gain (R, G, B) VIN= 100mVP-P at 100KHz 5.34 6.0 6.65 dB Output Level during Sync (R, G, B,) DURING SYNC 0.7 0.9 1.1 V Output Capability RL = 150W, AC-coupled@1MHz Clamp Response Time Settled to Within 10mV, CIN = 0.1µF 10 ms VI 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 150W 2 loads dG Differential Gain (R, G, B,) All Outputs at fC/2 0.4 % df Differential Phase (R, G, B,) All Outputs at fC/2 0.4 º T HD 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 V IH Input Voltage Logic High DISABLE, SYNC IN VIL Input Voltage Logic Low DISABLE, SYNC IN Input Mux Data Valid Time A/B Mux Pin Valid High or Low V OUT t CLAMP T MUX 2 VP-P 35 2.5 pF V 1.0 V 2 µs MHz 6.7MHz FILTER: ML6426-1 f1dB –1dB Bandwidth Flatness (R, G, B,) 25ºC 4.0 4.8 fc –3dB Bandwidth Flatness (R, G, B,) 25ºC 6.0 6.7 f0.8fc 0.8 x fC Attenuation 7.3 MHz 1.5 dB –42 dB StopBand Rejection (All Channels ³ 4 fC) fIN ³ 4 fC, Note 3 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 fSB November, 1999 –38 3 ML6426 ELECTRICAL CHARACTERISTICS SYMBOL (Continued) PARAMETER CONDITIONS MIN TYP MAX UNITS 6.7MHZ FILTER: ML6426-1 (continued) T PD DT PD Group Delay (R, G, B,) 100kHz 70 ns Group Delay Deviation from Flatness to 3.58MHz 4.0 ns (R, G, B,) to 4.43MHz 8.0 ns 9 ns MHz to 10MHz 2MHz FILTER: ML6426-2 f 1dB –1dB Bandwidth Flatness (R, G, B,) 25ºC 7.8 9.2 fc –3dB Bandwidth Flatness (R, G, B,) 25ºC 10.8 12 f0.8fc 0.8 x fC Attenuation 13.2 MHz 1.2 dB –40 dB 1 mVRMS StopBand Rejection (All Channels ³ 4 fC) fIN ³ 4 fC, Note 3 NOISE Output Noise (R, G, B,) Fullband 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 T PD Group Delay (R, G, B,) 100kHz 40 ns DT PD Group Delay Deviation from Flatness to 3.58MHz 1 ns (R, G, B,) to 4.43MHz 1 ns to 10MHz 7 ns MHz fSB 24MHz FILTER: ML6426-3 f 1dB –1dB Bandwidth Flatness (R, G, B,) 25ºC 13.6 16 fc –3dB Bandwidth Flatness (R, G, B,) 25ºC 21.6 24 f0.8fc 0.8 x fC Attenuation 26.4 MHz 1.7 dB StopBand Rejection (All Channels ³ 4 fC) fIN ³ 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 T PD Group Delay (R, G, B,) 100kHz 22 ns DT PD Group Delay Deviation from Flatness to 3.58MHz 1 ns (R, G, B,) to 4.43MHz 1 ns to 10MHz 2 ns MHz fSB 30MHz FILTER: ML6426-4 f 1dB –1dB Bandwidth Flatness (R, G, B,) 25ºC 15.3 18 fc –3dB Bandwidth Flatness (R, G, B,) 25ºC 27 30 f0.8fc fSB NOISE 4 0.8 x fC Attenuation 33 MHz 1.7 dB StopBand Rejection (All Channels ³ 4 fC) fIN ³ 4 fC, Note 3 –40 dB Output Noise (R, G, B,) Fullband 1.0 mVRMS November, 1999 ML6426 ELECTRICAL CHARACTERISTICS SYMBOL (Continued) PARAMETER CONDITIONS MIN TYP MAX UNITS 30MHz FILTER: ML6426-4 (Continued) 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 T PD Group Delay (R, G, B,) 100kHz 18 ns DT PD Group Delay Deviation from Flatness to 10MHz 0.5 ns (R, G, B,) to 27MHz 2 ns MHz 36MHz FILTER: ML6426-5 f1dB –1dB Bandwidth Flatness (R, G, B,) 25ºC 17 20 fc –3dB Bandwidth Flatness (R, G, B,) 25ºC 32.4 36 f0.8fc 0.8 x fC Attenuation 39.6 MHz 2 dB StopBand Rejection (All Channels ³ 4 fC) fIN ³ 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 T PD Group Delay (R, G, B,) 100kHz 17 ns DT PD Group Delay Deviation from Flatness to 10MHz 0.5 ns (R, G, B,) to 30MHz 4 ns MHz fSB 48MHz FILTER: ML6426-6 f1dB –1dB Bandwidth Flatness (R, G, B,) 25ºC 25.5 30 fc –3dB Bandwidth Flatness (R, G, B,) 25ºC 43.2 48 f0.8fc 0.8 x fC Attenuation 52.8 MHz 1.2 dB StopBand Rejection (All Channels ³ 4 fC) fIN ³ 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 T PD Group Delay (R, G, B,) 100kHz 16 ns DT PD Group Delay Deviation from Flatness to 10MHz 0.5 ns (R, G, B,) to 40MHz 2 ns fSB 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. November, 1999 5 ML6426 FUNCTIONAL DESCRIPTION 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 150W video loads, with up to 35pF of load capacitance. All outputs are capable of driving a 75W 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 conventional RC time constant. In most applications, the ML6426's input coupling capacitors are only 0.1µF. 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 + – A/B MUX + – 4th-ORDER FILTER B ×2 4th-ORDER FILTER C ×2 ROUT/YOUT GOUT/UOUT BOUT/VOUT 0.5V 1 SYNCIN SYNC IN 16 ACTIVE HIGH 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 November, 1999 220µF 75Ω R 220µF 75Ω G 220µF 75Ω B 13 11 0.5V MUX TRANSCONDUCTANCE ERROR AMP ×2 0.5V MUX BINA/VINA BINB/VINB + 4th-ORDER FILTER A 10 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 VERTICAL LINES ASPECT RATIO 1920 1280 704 640 1080 720 480 480 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 P=progressive scan, I=interlaced scan APPROXIMATE HORIZONTAL RATE APPROXIMATE SAMPLE CLOCK APPROXIMATE RECONSTRUCTION FILTER CUTOFF MICRO LINEAR FILTER TO USE (Note 3) 1920 1080 60I 60Hz 35.3KHz 81MHz 40.5MHz ML6426-6 1920 1080 30P, 24P 60Hz 70.6KHz 162MHz 81MHz N/A 1280 720 60Hz 47.1KHz 60MHz 30MHz 704 704 480 (Note 1) 480 60Hz 60Hz 15.7KHz 31KHz 13.5MHz 27MHz 6.75MHz 13.5MHz 640 640 480 (Note 1) 480 60P, 30P, 24P 60I 60P, 30P, 24P 60I 60P, 30P, 24P 60Hz 60Hz 15.7KHz 31KHz 24.5MHz 12.27MHz 12MHz 6MHz ML6426-5 ML6426-4 ML6426-1 ML6426-2 ML6426-4 ML6426-2 ML6426-1 DISPLAY REFRESH RATE (Note 2) PICTURE TRANSMISSION RATE (Note 2) SMPTE VERTICAL LINES SMPTE 274M PIXELS STANDARD Table 1: HDTV / Advanced TV Applications: (From Table 10.3 from ATSC document A54) 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 November, 1999 7 ML6426 (Continued) 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. 1024 768 1280 1024 1600 1200 XGA XGA XGA SXGA SXGA UXGA RECONSTRUCTION FILTER CUTOFF 600 SAMPLE CLOCK 800 VGA VGA VGA SVGA SVGA SVGA SVGA XGA HORIZONTAL RATE 480 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. REFRESH RATE (prog except noted) VERTICAL LINES 640 NAME PIXELS 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. USING THE ML6426 IN MULTIPLE RESOLUTIONS 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 25.175MHz 31.5MHz 31.5MHz 36MHz 40MHz 50MHz 49.5MHz 44.9MHz 12.5MHz 15.5MHz 15.5MHz 18MHz 20MHz 25MHz 25MHz 23MHz ML6426-2 ML6426-3 ML6426-3 ML6426-3 ML6426-3 ML6426-3 ML6426-3 ML6426-3 37.9kHz 56.5kHz 60kHz 80kHz 65MHz 75MHz 78.75MHz 135MHz 113MHz 166MHz 33MHz 37.5MHz 39.4MHz 68MHz 57MHz 83MHz ML6426-5 ML6426-5 ML6426-6 na na na MICRO LINEAR FILTER TO USE TYPICAL APPLICATIONS N/A = not available Table 3: Choosing the Correct Reconstruction Filter and Video Amplifier for TV Applications, ML6426 options 8 November, 1999 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 220µF 220µF 3 12 4 R/Y 11 10 14 75Ω 75Ω 75Ω G/U 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 November, 1999 9 ML6426 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 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 November, 1999 RGB MONITOR 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 C3 1µF 1µF C 26 C 27 C 28 BINB/VINB R10 75Ω ROUT U2 ML6426-3 GOUT 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 0.1µF 14 GNDO C 24 15 DISABLE C 23 VCCO R9 75Ω 12 BINA/VINA C11 4 C4 VCC C12 0.1µF BOUT 13 JP1 11 10 2 1 4 3 6 5 8 7 4 R2 47kΩ 3 2 SWI 1 1µF 1µF 12 SW2 C 32 C 33 C 34 0.1µF ROUT U3 ML6426-4 GOUT 3 GND 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 0 C13 14 GNDO 0.1µF C5 4 HYSYNC IN C6 VCC C14 BOUT 13 11 10 R3 47kΩ 1µF C 39 C 40 ROUT UX ML6426-X GOUT 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 BOUT 13 11 10 R4 47kΩ Figure 7. Typical Applications Schematic November, 1999 11 ML6426 10 10 0 0 –10 –10 AMPLITUDE (dB) AMPLITUDE (dB) PERFORMANCE DATA –20 –30 –40 –20 –30 –40 –50 –50 –60 –60 –70 0.01 0.1 10 1 –70 100k 100 1M 10 0 0 –10 –10 AMPLITUDE (dB) AMPLITUDE (dB) Figure 9. Passband Flatness all Outputs (Normalized) 12MHz, ML6426CS-2 10 –20 –30 –40 –20 –30 –40 –50 –50 –60 –60 10M –70 1M 100M 10M FREQUENCY (MHz) 0 0 –10 –10 AMPLITUDE (dB) AMPLITUDE (dB) 10 –20 –30 –40 –20 –30 –40 –50 –50 –60 –60 10M 100M 1G –70 10k 100k 1M 10M 100M 1G FREQUENCY (Hz) FREQUENCY (Hz) Figure 12. Passband Flatness all Outputs (Normalized) 36MHz, ML6426CS-5 12 Figure 11. Passband Flatness all Outputs (Normalized) 30 MHz, ML6426CS-4 10 1M 100M FREQUENCY (MHz) Figure 10. Passband Flatness all Outputs (Normalized) 24 MHz, ML6426CS-3 –70 100k 100M FREQUENCY (MHz) FREQUENCY (MHz) Figure 8. Passband Flatness all Outputs (Normalized) 6.7 MHz, ML6426CS-1 –70 1M 10M November, 1999 Figure 13. Passband Flatness all Outputs (Normalized) 48MHz, ML6426CS-6 ML6426 (Continuied) 0 0 –10 –10 –20 –20 –30 –30 AMPLITUDE (dB) AMPLITUDE (dB) PERFORMANCE DATA –40 –50 –60 –40 –50 –60 –70 –70 –80 –80 –90 –90 –100 0 10 20 30 40 50 60 70 80 –100 90 100 0 10 20 FREQUENCY (MHz) 10 8 8 6 GROUP DELAY DEVIATION (ns) GROUP DELAY DEVIATION (ns) 10 6 4 2 0 –2 –4 –6 60 70 80 90 100 4 2 0 –2 –4 –6 –8 0 –10 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7.0 0 1 2 FREQUENCY (MHz) 3 4 5 6 7 8 9 10 FREQUENCY (MHz) Figure 15. Group Delay Deviation of Passband, All Outputs ML6426CS-1 Figure 18. Group Delay Deviation of Passband, All Outputs ML6426CS-2 12 14 10 GROUP DELAY DEVIATION (ns) 12 GROUP DELAY DEVIATION (ns) 50 Figure 17. Frequency Response All Outputs ML6426CS-2 12 10 8 6 4 2 0 –2 8 6 4 2 0 –2 –4 –6 –4 –6 40 FREQUENCY (MHz) Figure 14. Frequency Response All Outputs ML6426-CS-1 –8 30 –8 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 16. Group Delay Deviation All band, All Outputs ML6426CS-1 November, 1999 Figure 19. Group Delay Deviation All Band, All Outputs ML6426CS-2 13 ML6426 (Continuied) 0 0 –10 –10 –20 –20 –30 –30 AMPLITUDE (dB) AMPLITUDE (dB) PERFORMANCE DATA –40 –50 –60 –40 –50 –60 –70 –70 –80 –80 –90 –90 –100 0 10 20 30 40 50 60 70 80 –100 90 100 0 10 20 FREQUENCY (MHz) 8 8 6 6 GROUP DELAY DEVIATION (ns) GROUP DELAY DEVIATION (ns) 10 4 2 0 –2 –4 –6 –8 0 2.5 5 7.5 70 80 90 100 4 2 0 –2 –4 –6 –10 10 12.5 15 17.5 20 22.5 25 Figure 21. Group Delay Deviation of Passband, All Outputs ML6426CS-3 6 10 4 8 2 4 2 0 –2 –4 –6 4 8 12 16 20 24 28 32 36 40 Figure 24. Group Delay Deviation of Passband, All Outputs ML6426CS-4 12 6 0 FREQUENCY (MHz) GROUP DELAY DEVIATION (ns) GROUP DELAY DEVIATION (ns) 60 –8 FREQUENCY (MHz) 0 –2 –4 –6 –8 –10 –12 0 10 20 30 40 50 60 70 80 90 100 FREQUENCY (MHz) –14 0 10 20 30 40 50 60 70 80 90 100 FREQUENCY (MHz) Figure 22. Group Delay Dviation All Band, All Outputs ML6426CS-3 14 50 Figure 23. Frequency Response All Outputs ML6426CS-4 10 –8 40 FREQUENCY (MHz) Figure 20. Frequency Response All Outputs ML6426CS-3 –10 30 November, 1999 Figure 25. Group Delay Deviation All Band, All Outputs ML6426CS-4 ML6426 (Continuied) 0 0 –10 –10 –20 –20 –30 –30 AMPLITUDE (dB) AMPLITUDE (dB) PERFORMANCE DATA –40 –50 –60 –40 –50 –60 –70 –70 –80 –80 –90 –90 –100 0 10 20 30 40 50 60 70 80 –100 90 100 0 12 24 FREQUENCY (MHz) 10 8 8 6 GROUP DELAY DEVIATION (ns) GROUP DELAY DEVIATION (ns) 10 6 4 2 0 –2 –4 –6 72 84 96 108 120 4 2 0 –2 –4 –6 –8 0 5 10 15 20 25 30 35 40 45 –10 50 FREQUENCY (MHz) Figure 27. Group Delay Deviation of Passand, All Outputs ML6426CS-5 10 10 8 8 6 4 2 0 –2 –4 –6 5 10 15 20 25 30 35 40 45 50 Figure 30. Group Delay Deviation of Passand, All Outputs ML6426CS-6 12 6 0 FREQUENCY (MHz) GROUP DELAY DEVIATION (ns) GROUP DELAY DEVIATION (ns) 60 Figure 29. Frequency Response All Outputs ML6426CS-6 12 –8 48 FREQUENCY (MHz) Figure 26. Frequency Response All Outputs ML6426-CS-5 –8 36 4 2 0 –2 –4 –6 –8 0 10 20 30 40 50 60 70 80 90 100 FREQUENCY (MHz) –10 0 10 20 30 40 50 60 70 80 90 100 FREQUENCY (MHz) Figure 28. Group Delay Deviation All band, All Outputs ML6426CS-5 November, 1999 Figure 31. Group Delay Deviation All Band, All Outputs ML6426CS-6 15 ML6426 PHYSICAL 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) 0º - 8º 0.055 - 0.061 (1.40 - 1.55) 16 0.012 - 0.020 (0.30 - 0.51) SEATING PLANE November, 1999 0.004 - 0.010 (0.10 - 0.26) 0.015 - 0.035 (0.38 - 0.89) 0.006 - 0.010 (0.15 - 0.26) ML6426 ORDERING INFORMATION PART NUMBER CUT-OFF FREQUENCY TEMPERATURE RANGE PACKAGE ML6426CS-1 ML6426CS-2 ML6426CS-3 ML6426CS-4 ML6426CS-5 ML6426CS-6 ML6426CS-15 6.7MHz 12MHz 24MHz 30MHz 36MHz 48MHz 15MHz 0°C to 70°C 0°C to 70°C 0°C to 70°C 0°C to 70°C 0°C to 70°C 0°C to 70°C 0°C to 70°C 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 © 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