U3661M Baseband Delay Line (64 ms) Application In TV sets, the integrated baseband delay line circuit is suitable for decoders with color-difference signal outputs Description The integrated delay line circuit U3661M is suitable for all chroma decoders with baseband color-difference outputs. It is suitable for PAL-, SECAM- and NTSC-signals as well. The U3661M contains two separate delay lines for processing (R–Y)-output and (B–Y)-output separately. The delay is performed by internally switched capacitors. On-chip postfiltering avoids the need for external filter components. A summing circuitry combines the information of adjacent TV-lines, thus giving an interpolated sum for the PAL-system, storing preceeding lines for the SECAMsystem and providing a comb-filtered output for NTSC-signals. Due to internally-generated timing, synchronization is easily done by feeding a line-frequent impulse (usually the SC-impulse) to the sync-input of the IC. Features D One line delay time, addition of delayed and D Line-locked by the sandcastle pulse non-delayed output signals D No crosstalk between SECAM color D Adjustment-free application, VCO without carriers (diaphoty) external components D Comb filtering functions for NTSC D Handles negative or positive color-difference color-difference signals input signals D Clamping of ac-coupled input signals D Correction of phase errors in the PAL system [±(R–Y) and ±(B–Y)] "(B–Y) 14 12 "(B–Y) 11 "(R–Y) 9 VDD1 10 GND1 VRef Clamping S+H Line memory + LPF "(R–Y) 16 Shift register S+H Clamping Line memory + LPF VRef 3 MHz Bias fSC VDD2 1 SC detector GND2 Control PLL Clock generator 3 5 94 8846 SC pulse Figure 1. Block diagram TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 1 (9) Preliminary Information U3661M Ordering Information ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin Description ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁ Extended Type Number U3661M-ADP U3661M-AFP Package DIP16 SO16 VDD2 1 16 Vi(R–Y) NC 2 15 NC GND2 3 14 Vi(B–Y) NC 4 13 NC SC 5 12 Vo(B–Y) NC 6 11 V0(R–Y) NC 7 10 GND1 NC 8 9 VDD1 Remarks Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol VDD2 NC GND2 NC SC NC NC NC VDD1 GND1 Vo (R–Y) Vo (B–Y) NC Vi (B–Y) NC Vi (R–Y) Function Supply voltage for digital part Not connected Ground for digital part Not connected Sandcastle-pulse input Not connected Not connected Not connected Supply voltage for analog part Ground for analog part ± (R–Y) output signal ± (B–Y) output signal Not connected ± (B–Y) input signal Not connected ± (R–Y) input signal 95 10649 Figure 2. Connection diagram Absolute Maximum Ratings Reference point Pin 3, 10, unless otherwise specified ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Á ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters Supply voltage (Pin 9) Supply voltage (Pin 1) Voltage on Pins 5, 11, 12, 14 and 16 Output current (Pin 11, Pin 12) Power dissipation Storage temperature range Electrostatic protection* for input/ output pins Symbol VDD1 VDD2 Vn Iout P Tstg Min. –0.5 –0.5 –0.5 Typ. –25 Max. +7 +7 VS 20 1.1 +150 500 Unit V V V mA W °C V * MIL standard 883D, method 3015.7 machine model (all power pins connected together) Operating Range ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ Thermal Resistance ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁ Parameters Supply voltage range (Pin 1, Pin 9) Ambient temperature range Symbol Vs Tamb Value 4.5 to 5.5 –10 to +70 Unit V °C Parameters Symbol RthJA Value 80 Unit K/W Junction ambient 2 (9) Preliminary Information TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 U3661M Electrical Characteristics VDD = 5.0 V, Tamb = 25°C, reference point, Pin 3 and Pin 10 connected together, sandcastle frequency of 15.625 kHz; unless otherwise specified ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ Á ÁÁÁ ÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ W ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁ ÁÁÁ ÁÁÁÁ ÁÁÁÁ Parameters Test Conditions / Pins DC-supply Pin 1, 9 Supply voltage (analog part) Pin 9 Supply voltage (digital part) Pin 1 Supply current (analog part) Pin 9 Supply current (digital part) Pin 1 Power dissipation Color-difference input signals Pin 14, 16 Input signal (peak-to-peak value) Pin 16 ±(R–Y) PAL and NTSC ±(B–Y) PAL and NTSC Pin 14 ±(R–Y) SECAM Pin 16 ±(B–Y) SECAM Pin 14 Input resistance During clamping Input capacitance Input clamping voltage Non-color input level during clamping Color-difference output signals Pin 11, 12 Output signal Pin 11 (peak-to-peak value) ±(R–Y) All standards ±(B–Y) All standards Pin 12 Ratio of output amplitudes at equal input signals DC output voltage Pin 11, 12 Output resistance Pin 11, 12 Gain for PAL and NTSC Ratio Vo / Vi Gain for SECAM Ratio Vo / Vi Ratio of output signals for Vi 14,16 = 1.33 Vpp SECAM signals adjacent time samples at Pin 11 / Pin 12 constant input signals Noise voltage Vi 14,16 = 0, Rgen < 300 (RMS value) f = 10 kHz to 1 MHz, Pin 11, 12 Delay of delayed signals Delay of non-delayed signals Transient time of delayed 300 ns transient of SECAM input signal signal, Cload =22 pF, Pin 11, 12 Transient time of 300 ns transient of SECAM input non-delayed signal signal, Cload = 22 pF, Pin 11, 12 Sandcastle-pulse input Pin 5 Sandcastle frequency Top pulse voltage The leading edge of the burst-key pulse is used for timing Internal slicing level Input current Input capacitance TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 Symbol Min. Typ. Max. Unit VDD1 VDD2 IS1 IS2 P 4.5 4.5 5.0 5.0 3.5 1 30 5.5 5.5 8.0 2 60 V V mA mA mW Vi Vi Vi Vi R14, R16 C14 C16 V14 V16 0.525 0.665 1.05 1.33 1.0 1.0 2.0 2.0 40 10 V V V V k pF 1.45 V Vo Vo V11/V12 1.05 1.33 0 V V dB V11,12 R11,12 Gv Gv V(n)/ V(n+1) –0.4 3.0 5.5 –0.5 6.0 0 ±0.1 Vnoise td td ttr +0.4 63.94 ttr 64.0 65 550 V 400 6.5 +0.5 dB dB dB 1.2 mV 64.06 µs ns ns 350 ns fSC V5 14.0 3 15.625 17.0 Vs+0.7 kHz V Vslice I5 C5 V5–1.5 V5–1.25 V5–1.0 10 10 V µA pF 3 (9) Preliminary Information U3661M BGP SC-impulse H-pulse Internal clamping 0.3 ms 95 10355 1.6 ms Figure 3. Timing of internal clamping No higher than VS + 0.7 V BGP 1.6 V At least 1.6 V H V 95 10226 Figure 4. Restrictions to SC Pulse 4 (9) Preliminary Information TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 U3661M +12 V 560 W 10 W 5V1 10 W 47 mF 47 mF 22 nF 22 nF "(R–Y) Chroma decoder "(B–Y) 1 9 NC 94 8848 11 1 nF Baseband delay line 14 1 nF SC pulse "(R–Y) 2,4,6,7,8,13,15 16 "(B–Y) 12 3 5 10 *) *) Figure 5. Typical application circuit *) Depends on application (5 V - or 12 V SC pulse) Baseband delay line Baseband delay line 12 V SC-impulse 5 SC-impulse 10 kW SC in 5 SC in 5V 6.8 kW 95 10354 95 10227 Figure 6. Application with 12 V SC-pulse TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 Figure 7. Application with 5 V SC-pulse 5 (9) Preliminary Information U3661M Internal Pin Circuits 14,16 5 95 10356 95 10357 Figure 8. Color-difference signal inputs Figure 10. Sandcastle-pulse input 95 10359 11,12 1,9 ÁÁ 95 10358 Figure 9. Color-difference signal outputs Figure 11. Supply voltage VDD2, VDD1 6 (9) Preliminary Information TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 U3661M Package Information Package DIP16 20.0 max Dimensions in mm 19.8 max 7.82 7.42 4.8 max 0.5 min 6.4 max 3.3 1.64 1.44 0.58 0.48 0.39 max 9.75 8.15 2.54 17.78 Alternative 16 15 14 13 12 11 10 9 technical drawings according to DIN specifications 96 11709 1 2 3 4 5 6 7 8 Package DIP16 20.57 18.92 Dimensions in mm 7.87 7.37 3.81 3.05 0.76 0.13 0.89 0.38 3.81 3.05 1.60 0.64 0.58 0.38 1.65 1.14 6.60 6.10 0.38 0.20 0.81 2.79 2.29 9.40 7.62 technical drawings according to DIN specifications 96 11650 TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 7 (9) Preliminary Information U3661M Package Information Package SO16 Dimensions in mm 94 8875 8 (9) Preliminary Information TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 U3661M Ozone Depleting Substances Policy Statement It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances ( ODSs). The Montreal Protocol ( 1987) and its London Amendments ( 1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency ( EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423 TELEFUNKEN Semiconductors Rev. A1, 17-Jul-96 9 (9) Preliminary Information