SP508 View Datasheet(PDF) - Signal Processing Technologies

Part Name

Description

Manufacturer

SP508

Rugged 20Mbps, 8 Channel Multi-Protocol Transceiver with Programmable DCE/DTE and Termination Resistors

Signal Processing Technologies 

Output

Under

Test CL

500Ω

S1

VCC

S2

Figure 34. Driver Timing Test Load Circuit

Receiver

Output

Test Point

1KΩ

S1

VCC

CRL

1KΩ

S2

Figure 35. Receiver Timing Test Load Circuit

DRIVER +3V

INPUT 0V

A

DRIVER

OUTPUT B

DIFFERENTIAL VO+

OUTPUT 0V

VB – VA VO–

f > 10MHz; tR < 10ns; tF < 10ns

1.5V

tPLH

VO 1/2VO

tPHL

1.5V

tDPLH

tDPHL

tR

tSKEW = | tDPLH - tDPHL |

Figure 36. Driver Propagation Delays

1/2VO

tF

Mx or Tx_Enable +3V

0V

5V

A, B

VOL

VOH

A, B

0V

1.5V

tZL

2.3V Output normally LOW

2.3V Output normally HIGH

tZH

Figure 37. Driver Enable and Disable Times

1.5V

tLZ

0.5V

0.5V

tHZ

A–B

V0D2+

V0D2–

VOH

RECEIVER OUT

VOL

tSKEW = | tPHL - tPLH |

tPLH

f > 10MHz; tR < 10ns; tF < 10ns

0V

INPUT

OUTPUT

(VOH - VOL)/2

tPHL

0V

(VOH - VOL)/2

Figure 38. Receiver Propagation Delays

Date: 8/19/04

SP508 Enhanced WAN Multi–Protocol Serial Transceiver

17

© Copyright 2004 Sipex Corporation

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