HT8970 Holtek, HT8970 Datasheet
HT8970
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HT8970 Summary of contents
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... Surround mode: 90dB Applications Television Karaoke systems General Description The HT8970 is an echo/surround effect processor designed for various audio systems including karaoke, television, sound equipments, etc. The chip consists of a built-in pre-amplifier, VCO or Voltage Control OSC, 20Kb SRAM, A/D and D/A converters as well as delay time control logic ...
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... Pin Assignment Pad Assignment The IC substrate should be connected to VSS in the PCB layout artwork. Rev. 1.10 2 Chip size (mil) 2 HT8970 May 2, 2008 ...
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... OP2 input OP2 output Low pass filter 2 input Low pass filter 2 output Low pass filter 1 output Low pass filter 1 input Analog and positive power supply Analog reference voltage Analog ground 3 HT8970 Unit 688.300 652.050 755.050 951.700 951.700 951.700 951.700 951.700 951 ...
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... OMAX N Output Noise Voltage O PSRR Power Supply Rejection Ratio Functional Description The HT8970 is an echo/surround effect generator with built-in 20Kb SRAM. The chip provides two playing modes (echo and surround) and the playing function block diagrams are shown as follows. Surround mode R -f ...
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... Application Circuits Echo Mode Note: : Analog ground, When the value of the R increases, the range of the Delay time also increases. Please refer to the OSC R f Delay_time Cross table for the R OSC OSC Rev. 1.10 : Digital ground & Delay time values. OSC 5 HT8970 May 2, 2008 ...
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... Surround Mode Note: : Analog ground, : Digital ground When the value of the R increases, the range of the Delay time also increases. Please refer to the OSC R f Delay_time Cross table for the R OSC OSC Rev. 1.10 & Delay time values. OSC 6 HT8970 May 2, 2008 ...
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... Package Information 16-pin DIP (300mil) Outline Dimensions Symbol Rev. 1.10 Dimensions in mil Min. Nom. 745 240 125 125 16 50 100 295 335 0 7 HT8970 Max. 775 260 135 145 20 70 315 375 15 May 2, 2008 ...
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... SOP (300mil) Outline Dimensions Symbol Rev. 1.10 Dimensions in mil Min. Nom. 394 290 14 390 HT8970 Max. 419 300 20 413 104 May 2, 2008 ...
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... Product Tape and Reel Specifications Reel Dimensions SOP 16W (300mil) Symbol Description A Reel Outer Diameter B Reel Inner Diameter C Spindle Hole Diameter D Key Slit Width T1 Space Between Flange T2 Reel Thickness Rev. 1.10 Dimensions in mm 330 1 62 1.5 13.0 0.5 0.2 2 0.5 16.8+0.3 0.2 22.2 0.2 9 HT8970 May 2, 2008 ...
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... Carrier Tape Width P Cavity Pitch E Perforation Position F Cavity to Perforation (Width Direction) D Perforation Diameter D1 Cavity Hole Diameter P0 Perforation Pitch P1 Cavity to Perforation (Length Direction) A0 Cavity Length B0 Cavity Width K0 Cavity Depth t Carrier Tape Thickness C Cover Tape Width Rev. 1.10 Dimensions 0.2 12 0.1 1.75 0.1 7.5 0.1 1.5+0.1 1.5+0.25 4 0.1 2 0.1 10.9 0.1 10.8 0.1 3 0.1 0.3 0.05 13.3 10 HT8970 May 2, 2008 ...
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... Holtek s products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. Rev. 1.10 11 HT8970 May 2, 2008 ...