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| AN2458SH Color Encoder IC (NTSC/PAL) for CCD Video Camera s Overview The AN2458SH is a color encoder IC for NTSC/ PAL-compatible CCD video camera. It outputs chroma signal after modulation of inputted R-Y and B-Y color difference signals with subcarrier signals. Unit:mm 1 24 0.5 s Features * Compatible with NTSC and PAL * Carrier leak adjustment available * Built-in blanking circuit * Color phase adjustment available * Improved temperature characteristics of color phase shift (within 5C) 12 13 0.20.1 0.10.1 0.650.1 0.1 0.15 + 0.05 - (0.5) 5.50.3 7.50.3 24-Pin SSOP Package (SSOP024-P-0300) s Block Diagrams VREF 24 R-Y IN 23 22 NC R-Y OFF 21 HUE R-Y SC Cont. BF IN 20 19 18 DC. Cont. C 17 BLK. IN 16 15 NC BLK VCC 14 CP2. IN 13 VREF DC Cont. Clamp MOD + CP2 Lim. BLK BLK MOD GC VCC CP2 Clamp CP2 MOD GC + HUE + NC 1 2 3 4 5 6 7 8 9 10 11 12 B-Y IN GND B-Y OFF B-Y SC 90. ADJ HUE.C HUE. BURST CR LEVEL NC CHROMA HUE.R OUT 0.650.1 1.50.2 6.50.3 s Absolute Maximum Ratings Parameter Supply voltage Supply current Power dissipation Operating ambient temperature Storage temperature Note 1) Note 1) Symbol VCC ICC Rating 5.5 25 120 -20 to +75 -55 to +125 Unit V mA mW C C PD Topr Tstg Note 1) Ta=25C except operating ambient temperature and storage temperature. s Recommended Operating Range (Ta=25C) Parameter Operating supply voltage range Symbol VCC Range 4.6V to 5.0V s Electrical Characteristics (Ta=252C) Parameter Supply current CP2 threshold 1 CP2 threshold 2 BLK threshold Terminal voltage Pin5 Terminal voltage Pin11 Terminal voltage Pin20 R-Y GAIN B-Y GAIN CHROMA CLIP BLK CONTROL BURST GC (1) BURST GC (2) BURST GC (3) BURST PHASE (1) BURST PHASE (2) Symbol ICC VTH (CP2-1) VTH (CP2-2) VTH (BLK) V5 V11 V20 GV1 GV2 GV3 GV4 GV5 GV6 GV7 1 2 Condition VCC=4.8V, VREF=1.8V VCC=4.8V, VREF=1.8V VCC=4.8V, VREF=1.8V VCC=4.8V, VREF=1.8V VCC=4.8V, VREF=1.8V diffrence from VREF VCC=4.8V, VREF=1.8V VCC=4.8V, VREF=1.8V diffrence from VREF VCC=4.8V, VREF=1.8V 250mVP-P input VCC=4.8V, VREF=1.8V 250mVP-P input VCC=4.8V, VREF=1.8V 600mVP-P input VCC=4.8V, VREF=1.8V 250mVP-P input BLK=3VOP VCC=4.8V, VREF=1.8V V9=VREF VCC=4.8V, VREF=1.8V V9=VREF0.5V VCC=4.8V, VREF=1.8V V9=VREF-0.5V VCC=4.8V, VREF=1.8V V19=VREF+0.5V VCC=4.8V, VREF=1.8V V19=VREF-0.5V min 12.0 1.5 2.0 1.9 -100 1.8 -100 480 -7.0 0.5 300 290 1.5 -6.0 -45 0 typ 16.0 1.8 2.4 2.2 0 2.3 0 600 -5.5 3.0 600 350 3.0 -4.5 -30 15 max 20.0 2.1 2.8 2.5 100 2.8 100 720 -3.5 4.5 900 430 4.5 -2.5 -15 30 Unit mA V V V mV V mV mVP-P dB dB mVP-P mVP-P dB dB deg deg s Application Circuit VREF (typ.1.8V) BLK (BLan King) IN BF (Burst Flag) IN CP2 (Clamp Pulse) IN 27k HUE 50kB 47F 16.3V + 10kB 6400 10k + 0.047 F 22H VCC 100F 16.3V (typ.4.8V) 1k 24 23 22 21 20 19 18 17 16 15 14 13 R-Ysig.IN 0.22F 1 B-Ysig.IN 0.22F 10k 10kB 6800 SC90IN 1500 0.001 F 6400 27k SC0IN 1 k *10pF 22 k 1k 22 k 2 3 4 AN2458SH 5 6 7 8 9 10 11 12 6800 0.001 F 1500 50kB 90.Adj. 50kB Burst Level Chroma Level 1k BPF 1k CHROMA OUT * The phase-shift capacitor is typically 10 pF for both NTSC and PAL. s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 GND N. C. Subcarrier (0) OFF Subcarrier(0) input 90adjustment Phase-shift capacitor Phase-shift capacitor Burst amplitude adjustment Pin name Color difference (B-Y) input Pin No. Pin name 13 Clamp pulse input 14 VCC (4.8V typ.) 15 N. C. 16 Blanking pulse input 17 DC playback capacitor 18 Burst flag input 19 Phase adjustment 20 Subcarrier (90/270) input 21 Subcarrier (90/270) OFF 22 N. C. 23 Color difference (R-Y) input 24 VREF (1.8V typ.) 10 N. C. 11 Chroma plus burst output 12 Phase-shift resistors Request for your special attention and precautions in using the technical information and semiconductors described in this material (1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: * Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. * Any applications other than the standard applications intended. (4) The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company. Please read the following notes before using the datasheets A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. Due to modification or other reasons, any information contained in this material, such as available product types, technical data, and so on, is subject to change without notice. Customers are advised to contact our semiconductor sales office and obtain the latest information before starting precise technical research and/or purchasing activities. B. Panasonic is endeavoring to continually improve the quality and reliability of these materials but there is always the possibility that further rectifications will be required in the future. Therefore, Panasonic will not assume any liability for any damages arising from any errors etc. that may appear in this material. C. These materials are solely intended for a customer's individual use. Therefore, without the prior written approval of Panasonic, any other use such as reproducing, selling, or distributing this material to a third party, via the Internet or in any other way, is prohibited. 2001 MAR |
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