3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver (Rev. C)

MAX32223-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVERSLLS408C – JANUARY 2000 – REVISED AUGUST 2002PARAMETER MEASUREMENT INFORMATIONGenerator(see Note B)50 ΩTEST CIRCUITRL3 VPWRDOWNRS-232OutputCL(see Note A)InputOutputSR(tr) 6Vt or t THL TLH3 V1.5 V1.5 V0 VtTHLtTLH3 V3 VVOH–3 V–3 VVOLVOLTAGE WAVEFORMSNOTES: A. CL includes probe and jig capacitance.B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.Figure 1. Driver Slew RateGenerator(see Note B)50 Ω3 VPWRDOWNRLRS-232OutputCL(see Note A)InputOutput3 V1.5 V 1.5 V0 VtPHLtPLHVOH50% 50%VOLTEST CIRCUITVOLTAGE WAVEFORMSNOTES: A. CL includes probe and jig capacitance.B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.Figure 2. Driver Pulse SkewGenerator(see Note B)50 ΩEN0 VOutputCL(see Note A)InputOutputtPHL1.5 V50%50%1.5 VtPLH3 V–3 VVOHVOLTEST CIRCUITVOLTAGE WAVEFORMSNOTES: A. CL includes probe and jig capacitance.B. The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.Figure 3. Receiver Propagation Delay Times6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265