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ACT15530 数据表(PDF) 5 Page - Aeroflex Circuit Technology |
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ACT15530 数据表(HTML) 5 Page - Aeroflex Circuit Technology |
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5 / 15 page  Aeroflex Circuit Technology SCD15530 REV B 7/28/99 Plainview NY (516) 694-6700 5 AC Characteristics Sym Parameter Limits Figure 7: Encoder Electrical Characteristics Min Max Units fEC Encoder clock frequency 0 15 MHz fESC Send clock frequency 0 2.5 MHz tECR Encoder clock rise time - 8 ns tECF Encoder clock fall time - 8 ns fED Data rate 0 1.25 MHz tMR Master reset pulse width 150 - ns tE1 Shift clock delay - 125 ns tE2 Serial data setup time 75 - ns tE3 Serial data hold time 75 - ns tE4 Enable setup time 90 - ns tE5 Enable pulse width 100 - ns tE6 Sync setup time 55 - ns tE7 Sync pulse width 150 - ns tE8 Send data delay 0 50 ns tE9 Bipolar output delay - 130 ns 1. VDD = 5V ±10%, over full operating temperature range. 2. CL=50pF. Sym Parameter Limits Figure 8: Decoder Electrical Characteristics Min Typ Max Units fDC Decoder clock frequency 0 - 15 MHz tDCR Decoder clock rise time - - 8 MHz tDCF Decoder clock fall time - - 8 ns fDD Data rate 0 - 1.25 MHz tDR Decoder reset pulse width 150 - - ns tDRS Decoder reset setup time 75 - - ns tMR Master reset pulse width 150 - - ns tD1 Bipolar data pulse width tDC + 10 - - ns tD2 Sync transition span - 18tDC - ns tD3 One-Zero overlap - - tDC - 10 ns tD4 Short data transition span - 6tDC - ns tD5 Long data transition span - 12tDC - ns tD6 Sync delay (on) -20 - 110 ns tD7 Take data delay (on) 0 - 110 ns tD8 Serial data out delay - - 80 ns tD9 Sync delay (off) 0 - 110 ns tD10 Take data delay (off) 0 - 110 ns tD11 Valid word delay 0 - 110 ns 1. VDD = 5V ±10%, over full operating temperature range. 2. CL=50pF. 3. tDC = Decoder clock period = 1/fDC |
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