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SN74LVC1G3157DBVR 数据表(PDF) 6 Page - Texas Instruments |
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SN74LVC1G3157DBVR 数据表(HTML) 6 Page - Texas Instruments |
6 / 30 page SN74LVC1G3157 SCES424H – JANUARY 2003 – REVISED MAY 2012 www.ti.com Analog Switch Characteristics TA = 25°C FROM TO PARAMETER TEST CONDITIONS VCC TYP UNIT (INPUT) (OUTPUT) 1.65 V 300 Frequency 2.3 V 300 RL = 50 Ω, fin = sine wave response(1) A or Bn Bn or A MHz (see Figure 6 ) 3 V 300 (switch on) 4.5 V 300 1.65 V –54 2.3 V –54 Crosstalk(2) RL = 50 Ω, fin = 10 MHz (sine wave) B1 or B2 B2 or B1 dB (between switches) (see Figure 7 ) 3 V –54 4.5 V –54 1.65 V –57 Feed through CL = 5 pF, RL = 50 Ω, 2.3 V –57 attenuation(2) A or Bn Bn or A fin = 10 MHz (sine wave) dB 3 V –57 (switch off) (see Figure 8 ) 4.5 V –57 3.3 V 3 CL = 0.1 nF, RL = 1 MΩ Charge injection(3) S A pC (see Figure 9 ) 5 V 7 1.65 V 0.1 VI = 0.5 Vp-p, RL = 600 Ω, 2.3 V 0.025 Total harmonic A or Bn Bn or A fin = 600 Hz to 20 kHz (sine wave) % distortion 3 V 0.015 (see Figure 10 ) 4.5 V 0.01 (1) Adjust fin voltage to obtain 0 dBm at output. Increase fin frequency until dB meter reads –3 dB. (2) Adjust fin voltage to obtain 0 dBm at input. (3) Specified by design Switching Characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figure 5 and Figure 11) VCC = 1.8 V VCC = 2.5 V VCC = 3.3 V VCC = 5 V FROM TO ± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V PARAMETER UNIT (INPUT) (OUTPUT) MIN MAX MIN MAX MIN MAX MIN MAX tpd (1) A or Bn Bn or A 2 1.2 0.8 0.3 ns ten (2) 7 24 3.5 14 2.5 7.6 1.7 5.7 S Bn ns tdis (3) 3 13 2 7.5 1.5 5.3 0.8 3.8 tB-M (4) 0.5 0.5 0.5 0.5 ns (1) tpd is the slower of tPLH or tPHL. The propagation delay is calculated RC time constant of the typical on-state resistance of the switch and the specified load capacitance when driven by an ideal voltage source (zero output impedance). (2) ten is the slower of tPZL or tPZH. (3) tdis is the slower of tPLZ or tPHZ. (4) Specified by design 6 Submit Documentation Feedback Copyright © 2003–2012, Texas Instruments Incorporated Product Folder Link(s): SN74LVC1G3157 |
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