PM5345(1995) 데이터 시트보기 (PDF) - PMC-Sierra
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PM5345 Datasheet PDF : 2 Pages
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ERRATA
PMC-Sierra, Inc.
PM5345 S/UNI
SATURN USER NETWORK INTERFACE
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1. DC CHARACTERISTICS
Page 133:
VPOL
Output Low
Voltage
(PECL Only)
VTERM
- 1.5
-0.6
Volts
Note 6
Page 134:
6. The PECL output low voltage is specified relative to the termination
voltage at the end of the controlled impedance transmission line
(VTERM). It is recommended that this termination voltage and TAVD2
be connected to the same supply as illustrated in figures 1 and 2 of this
document.
6. The PECL output low voltage is specified relative to the termination
voltage (VTERM) as illustrated below:
Vcc
R1
Zo
R2
TXDO+/-,
TXD+/-
VTERM
Zo
Zo
TXDO+/-,
TXD+/-
R1 // R2 = Zo
VTERM = R2 * Vcc
(R1 + R2)
This specification is applicable when the S/UNI is operated as
illustrated in figures 1 and 2 (a 50Ω controlled impedance environment
with R1 = 59 Ω and R2 = 312 Ω).
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PMC-941105 Issue 3
2 of 2
May 5, 1995
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