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| HT9170 |
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 HOLTEK
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6 page 
Symbol Parameter Test Conditions Min. Typ. Max. Unit VDD Conditions RL Load Resistance (GS) 5V ¾¾ 50 ¾ kW CL Load Capacitance (GS) 5V ¾¾ 100 ¾ pF VCM Common Mode Range 5V No load ¾ 3.0 ¾ VPP Steering Control tDP Tone Present Detection Time 5 16 22 ms tDA Tone Absent Detection Time ¾ 4 8.5 ms tACC Acceptable Tone Duration ¾¾ 42 ms tREJ Rejected Tone Duration 20 ¾¾ ms tIA Acceptable Inter-digit Pause ¾¾ 42 ms tIR Rejected Inter-digit Pause 20 ¾¾ ms tPDO Propagation Delay (RT/GT to DO) ¾ 811 ms tPDV Propagation Delay (RT/GT to DV) ¾ 12 ¾ms tDOV Output Data Set Up (DO to DV) ¾ 4.5 ¾ms tDDO Disable Delay (OE to DO) ¾ 300 ¾ ns tEDO Enable Delay (OE to DO) ¾ 50 60 ns Note: DO=D0~D3 HT9170 6 December 20, 1999 18 17 16 15 14 13 12 11 10 1 2 3 4 5 6 7 8 9 VD D RT / G T ES T DV D3 D2 D1 D0 OE VP VN GS VR EF (I N H ) (P W D N ) X1 X2 VSS HT 9 1 7 0 / B/ D 0. 1 m F 300k W V DD VS S 3. 579545M H z 100k W 100k W 0. 1 m F T one 20p F 20p F Figure 1. Test circuit |
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