CCD Delay Line Series MN3814, MN3814S NTSC CCD Video Signal Delay Elements Overview The MN3814 and MN3814S are 4 fSC CMOS CCD signal delay elements whose wide bandwidth and low noise make them ideal for video signal processing applications. They contain such components as a shift register clock driver, 906-stage CCD analog shift register, and resampling output amplifier. They sample the input using the supplied clock signal with a frequency of 14.32 MHz, four times the NTSC color signal subcarrier frequency, and after adding in the attached filter delay, produce independent delays of 1 H (the horizontal scan period). Features Pin Assignment MN3814 VBB 1 8 VDD1 XI 2 7 VSS VBIAS 3 6 VDD2 VO 4 5 VIN High-precision 1 H delay for video signal CMOS process for low power consumption (TOP VIEW) Low EMI levels from clock during driving DIP008-P-300 Low clock leakage, which allows use of simpler filters Applications 1 H delays of NTSC video signals, especially for: Comb filters Signal-to-noise ratio improvement Dropout compensation MN3814S VBB 1 18 N.C. N.C. 2 17 N.C. N.C. 3 16 VDD1 X1 4 15 VSS VBIAS 5 14 VDD2 VO 6 13 VIN N.C. 7 12 N.C. N.C. 8 11 N.C. N.C. 9 10 N.C. (TOP VIEW) SOP018-P-0300 1 MN3814, MN3814S CCD Delay Line Series VBIAS (5) 3 (14) 6 V DD2 (16) 8 VDD1 Block Diagram Bias circuit VIN 5 (13) Resampling output amplifier 906-stage CCD analog shift register øS ø1 ø2 øR (6) 4 VO øSH Clock driver VBB The numbers in parentheses are the pin numbers for the MN3814S. 2 (4) 2 7 (15) Waveform adjustment VSS Timing adjustment 1 (1) Substrate bias generator XI CCD Delay Line Series MN3814, MN3814S Pin Descriptions MN3814 Pin No. Symbol Pin Name 1 VBB 2 XI 14.32 MHz clock input Substrate connection 3 VBIAS Output amplifier control 4 VO Signal output 5 VIN Signal input 6 VDD2 9 volt power supply 7 VSS Ground 8 VDD1 5 volt power supply MN3814S Pin No. Symbol Pin Name 1 VBB Substrate connection 2 N.C. No connection 3 N.C. 4 XI 14.32 MHz clock input 5 VBIAS Output amplifier control 6 VO Signal output 7 N.C. No connection 8 N.C. No connection No connection 9 N.C. No connection 10 N.C. No connection 11 N.C. No connection 12 N.C. No connection 13 VIN Signal input 14 VDD2 9 volt power supply 15 VSS Ground 16 VDD1 5 volt power supply 17 N.C. No connection 18 N.C. No connection 3 MN3814, MN3814S CCD Delay Line Series Electrical Characteristics VDD1=5.0V, VDD2=9.0V, Vck=0.3VP-P (sine wave), Vin=0.5VP-P, fck=14.31818MHz, Ta=25˚C Parameter Power supply current (1) Symbol IDD1 Measurement Conditions Average current for 5 volt power min typ 26 max 50 Unit mA 10 25 mA supply Power supply current (2) IDD2 Average current for 9 volt power supply Signal bandwidth BW –3 dB for 200 kHz value Insertion gain IG fsig=200kHz 4.0 5.5 4 7 10 1 3 50 56 Total harmonic distortion THD fsig=200kHz Signal-to-noise ratio S/N Signal output (Vp-p)/noise output Clock leakage NC Clock fundamental component Delay time τD 63.33 VO pin output impedance ZO 250 MHz dB % dB (rms) –30 –15 dB output 4 µs 500 Ω CCD Delay Line Series MN3814, MN3814S Package Dimensions (Unit:mm) MN3814 DIP008-P-0300 9.6±0.4 5 1 4 3.45±0.30 4.8max. 0.7min. 3.3±0.2 6.4±0.2 8 2.54 +0.20 .05 0.25 -0 SEATING PLANE SOP018-P-0300 12.60±0.20 18 10 (1.22) 1.27 0.40±0.10 +0.10 0.15 -0.05 0 to 10° 0.30min. 1.90max. 9 1.50±0.20 1 7.70±0.30 5.50±0.20 1.10±0.20 0.10 +0.18 -0.10 MN3814 7.62±0.20 0 to 15° 0.5±0.1 1.3±0.1 SEATING PLANE 5