TSH346IDT STMicroelectronics, TSH346IDT Datasheet
TSH346IDT
Specifications of TSH346IDT
Available stocks
Related parts for TSH346IDT
TSH346IDT Summary of contents
Page 1
Triple video buffer/filter for HD video applications Features ■ 6th order filtering of 36 MHz ■ single-supply operation ■ Internal input DC level shifter ■ No input capacitor required ■ Three matched 6 dB amplifiers ■ ...
Page 2
Absolute maximum ratings and operating conditions 1 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings (AMR) Symbol V Supply voltage CC V Input voltage range in T Operating free air temperature range oper T Storage temperature std ...
Page 3
TSH346 2 Electrical characteristics Table single supply Symbol Parameter DC performance V Output DC shift DC I Input bias current ib R Input resistance in C Input capacitance in I Total supply current ...
Page 4
Electrical characteristics Figure 1. Filtering 10 0 -10 -20 -30 Vcc=5V -40 small signal Ω Load=150 -50 1M 10M Frequency (Hz) Figure 3. Distortion 1 MHz (HD) 0 Vcc=5V -10 F=1MHz -20 Ω Load=150 -30 -40 -50 HD2 -60 -70 ...
Page 5
TSH346 Figure 7. Gain vs. input amplitude 2.10 Vcc=5V Ω Load=150 2.05 2.00 1.95 1.90 0.0 0.2 0.4 0.6 0.8 Vin (Vp-p) Figure 9. Current consumption vs. supply 50 Vcc=5V no Load 0.0 0.5 1.0 ...
Page 6
Electrical characteristics Figure 13. Gain matching vs. temperature 5 Vcc=5V Ω Load=150 -40 - Temperature (°C) Figure 15. Isink vs. temperature 150 140 130 120 110 100 Vcc=5V 50 ...
Page 7
TSH346 Figure 19. VOL vs. temperature Vcc=5V Ω Load=150 30 -40 - Temperature (°C) Figure 20. Gain vs. temperature 2.20 2.15 2.10 2.05 2.00 1.95 1.90 Vcc=5V 1.85 Load=150 1. ...
Page 8
Power supply considerations and improvement of the PSRR 3 Power supply considerations and improvement of the PSRR Correct power supply bypassing is very important to optimize performance in low and high- frequency ranges. Bypass capacitors should be placed as close ...
Page 9
TSH346 Figure 22. Circuit for noise rejection improvement measurement +5 V Figure 23 shows how the power supply noise rejection evolves versus frequency depending on how carefully the power supply decoupling is achieved. Figure 23. Power supply noise rejection Power ...
Page 10
Using the TSH346 to drive YC, CVBS, YUV, YPbPr and RGB video components 4 Using the TSH346 to drive YC, C RGB video components Figure 24. Implementation of the video driver on output video DACs Reconstruction filtering Y Video LPF ...
Page 11
TSH346 Using the TSH346 to drive YC, CVBS, YUV, YPbPr and RGB video components Figure 25. Shapes of HD video signals coming from DACs including the synchronization tip (Y signal (2t) 300 mV 590 ns ( ...
Page 12
Using the TSH346 to drive YC, CVBS, YUV, YPbPr and RGB video components Figure 26. Flexible solution for SD and HD signals HD R DAC G DAC B DAC SD Y,G DAC Pb,B,C DAC Pr,R,C DAC SD C VBS DAC ...
Page 13
TSH346 Using the TSH346 to drive YC, CVBS, YUV, YPbPr and RGB video components 4.1 Output capacitor The output can be either DC- or AC-coupled, and can be directly connected to the line via a 75-Ω resistor (4) (Figure DC ...
Page 14
Package information 5 Package information In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ...
Page 15
TSH346 Figure 29. SO-8 package mechanical drawing Table 4. SO-8 package mechanical data Ref ccc Dimensions Millimeters Min. Typ. Max. 1.75 0.10 0.25 1.25 0.28 0.48 0.17 ...
Page 16
... Ordering information 6 Ordering information Table 5. Order codes Part number TSH346ID TSH346IDT 16/18 Temperature Package range -40°C to +85°C SO-8 TSH346 Packing Marking Tube TSH346I Tape & reel TSH346I ...
Page 17
TSH346 7 Revision history Table 6. Document revision history Date 29-May-2007 16-Dec-2008 Revision 1 Initial release. Added curves in Chapter 2: Electrical 2 Added all test limits in Revision history Changes characteristics. Table 3. 17/18 ...
Page 18
... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...