Video:  Filter / Buffer products for DTV, Delay Lines, Shift Register Products

Plasma and LCD display technology and HDTV must work with multiple formats ranging from NTSC and PAL TV to HDTV formats.  The digital video signal filtering requirements vary for each format to prevent "ghosting" or other unwanted artifact from displaying. NPC video filter buffer products provide a high quality adjustable filter in various configurations to match these multiple formats. NPC video delay line and video shift registers are used to adjust video signal timing to align with other video signals or system clocks.

*HDTV TV and Flat Panel Displays  *Computer flat panel monitors *Video projection / DLP projectors  *Video professional equipment

Video Filter Buffers Device Number of output buffer Number of filter order Supply voltage [V] Features Package Datasheet SM5301A 3 5 4.5 to 5.5 Cutoff frequency variable fc=5.8MHz to 37MHz: setting by VFC(voltage) or RFC(resistance)  Output buffer gain switching function: 0/6dB 2-system input select function HSOP-28 (177KB) SM5301B 3 5 4.5 to 5.5 Cutoff frequency variable fc=5.8MHz to 37MHz: setting by VFC(voltage) or RFC(resistance)  Output buffer gain switching function: 0/6dB 2-system input select function Filter bypass mode(46MHz at 6dB) HSOP-28 (209KB) SM5302A 3 5 4.75 to 5.25 (analog) 3.0 to 5.5 (digital) I2C interface: Lowpass filter cutoff frequency linear control function.  fc=4.8MHz to 43MHz: 256 kinds of cutoff frequency adjustable using I2C.  Filter bypass mode (80MHz min).  Clamp/bias/direct-input select function for each input Output buffer gain switching function: 0/6dB.  2-system input select function Output sag compensation circuit built-in HSOP-28 (504KB) SM5304A 1 8 4.5 to 5.5 Cutoff frequency variable.  fc=2MHz to 10MHz: setting by RFC(resistance) Output buffer gain switching function: 0/6/12dB VSOP-8 (239KB) SM5306A 3 - 3.0 to 5.5 Frequency bandwidth: 20MHz (min).  Output buffer gain switching function: 0/6dB Output sag compensation circuit built-in VSOP-16 (180KB) SM5313A* 6 - 4.5 to 5.5 5-input/6-output video buffer with build-in Y/C MIX circuit. Lowpass filter cutoff frequency *Y1, YCMIX, C1 blocks: 6MHz fixed  *Y2, Cr, Cb blocks: Y2 = 12 MHz, Cr, Cb = 6MHz.  Output buffer gain= 6dB.  Channel-to-channel group delay error <10nsec HSOP-28   Delay Line Device Features Supply voltage [V] Package Datasheet SM5837A Variable-length 1H delay line 12-bit signal data I/O 31 to 2078-bit delay variable range 40MHz maximum operating frequency 4.75 to 5.25 LQFP-44 (75KB) FIFO Device Features Supply voltage [V] Package Datasheet SM5838A 5120 x 8-bit synchronous FIFO.  Variable-length delay (21 to 5120 bits) 33.3MHz high-speed operation.  Similar to the list below: (pin 8 and 5 are /RE, and RCK is disconnected) Replace: uPD42101  uPD42102  uPD42505  uPD485505  M66251  MSM514212 3.0 to 5.5 SOP-24 (160KB) *Preliminary