ISP1107 datasheet(11/19 Pages) PHILIPS

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Philips Semiconductors

ISP1107

Advanced USB transceiver

Objective speciﬁcation

Rev. 01 — 23 February 2000

11 of 19

9397 750 06899

11. Test information

V = 0 V for tPZH, tPHZ

V=Vreg(/3.3) for tPZL, tPLZ

(1) Complies with USB 1.1. For USB 2.0 a resistor of 39

Ω must be used.

Fig 8.

Load for enable and disable times.

Fig 9.

Load for VM, VP and RCV.

Load capacitance:

CL = 50 pF or 125 pF (full-speed mode, minimum or maximum timing)

CL = 200 pF or 600 pF (low-speed mode, minimum or maximum timing)

(1) Full-speed mode: connected to D

+, low-speed mode: connected to D−.

(2) Complies with USB 1.1. For USB 2.0 a resistor of 39

Ω must be used.

Fig 10. Load for D

+, D−.

handbook, halfpage

test point

Ω(1)

D.U.T.

500

Ω

50 pF

MBL142

handbook, halfpage

MGS968

25 pF

test point

D.U.T.

handbook, halfpage

MGS967

test point

15 k

Ω

+/D−

Vpu(3.3)

1.5 k

Ω(1)

Ω(2)

D.U.T.

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