HDMP-1638 Datasheet, PDF (7/19 Pages) Agilent(Hewlett-Packard) – Gigabit Ethernet Transceiver Chip with Dual Serial I/O and Differential PECL Clock Inputs

7
HDMP-1638 (TRx)
Absolute Maximum Ratings
T_A = 25 °C, except as specified. Operation in excess of any one of
these conditions may result in permanent damage to this device.
Symbol
Parameter
Units Min. Max.
V_CC
Supply Voltage
V
V_IN,TTL TTL Input Voltage
V
V_{IN,HS_IN} HS_IN Input Voltage
V
I_O,TTL TTL Output Source Current mA
T_stg
Storage Temperature
°C
T_j
Junction Temperature
°C
-0.5
5.0
-0.7 V_CC+2.8
2.0
V_CC
13
-65 +150
0
+150
HDMP-1638 (TRx)
Guaranteed Operating Rates
T_A = 0 °C to +70 °C, V_CC = 3.15 V to 3.45 V
Parallel Clock Rate
(MHz)
Min.
Max.
Serial Baud Rate
(MBaud)
Min.
Max.
124.0
126.0
1240
1260
HDMP-1638 (TRx)
Transceiver Reference Clock Requirements
T_A = 0 °C to +70 °C, V_CC = 3.15 V to 3.45 V
Symbol
Parameter
f
Nominal Frequency (for Gigabit Ethernet Compliance)
F_tol
Frequency Tolerance
Symm
Symmetry (Duty Cycle)
Units Min. Typ. Max.
MHz
125
ppm -100
+100
%
40
60