SP506 View Datasheet(PDF) - Exar Corporation

Part Name

Description

Manufacturer

SP506

5V Single Chip WAN Multi-Mode Serial Transceiver

Exar Corporation 

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

DRIVER A

OUTPUT B

DIFFERENTIAL VO+

OUTPUT 0V

VA –V B VO–

tSKEW = | tDPLH - tDPHL |

f ≥ 10MHz; tR ≤ 10 ns; tF ≤ 10ns

1.5V

VO 1/2VO

tPLH

tPHL

tDPLH

tDPHL

tR

1.5V

Figure 36. Driver Propagation Delays

1/2VO

tF

+3V

DECx or Tx_Enable

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

SP506_100_081208

SP506 Multi–Mode Serial Transceiver

13

© Copyright 2008 Exar Corporation

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