HDMP-1637A Datasheet, PDF (7/16 Pages) Agilent(Hewlett-Packard) – Gigabit Ethernet SerDes Circuit with Differential PECL Clock Inputs

7
HDMP-1637A (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
V_CC
V_IN,TTL
V_{IN,HS_IN}
I_O,TTL
T_stg
T_j
Parameter
Supply Voltage
TTL Input Voltage
HS_IN Input Voltage
TTL Output Source Current
Storage Temperature
Junction Temperature
Units
V
V
V
mA
°C
°C
Min.
–0.5
–0.7
2.0
–65
0
Max.
5.0
V_CC + 2.8
V_CC
18
+150
+150
HDMP-1637A (TRx)
Guaranteed Operating Rates
T_A = 0°C to +70°C, V_CC = 3.15 V to 3.45 V
Parallel Clock Rate (MHz)
Serial Baud Rate (MBaud)
Min.
Max.
Min.
Max.
124.0
126.0
1240
1260
HDMP-1637A (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)
Unit
MHz
ppm
%
Min.
–100
40
Typ.
125
Max.
+100
60
HDMP-1637A (TRx)
DC Electrical Specifications
T_A= 0°C to +70°C, V_CC = 3.15 V to 3.45 V
Symbol
Parameter
Unit Min. Typ. Max.
V_IH,TTL TTL Input High Voltage Level, Guaranteed High Signal
V
2
5.5
for All Inputs
V_IL,TTL TTL Input Low Voltage Level, Guaranteed Low Signal for
V
0
0.8
All Inputs
V_OH,TTL TTL Output High Voltage Level, I_OH = -400 µA
V
V_OL,TTL TTL Output Low Voltage Level, I_OL = 1 mA
V
I_IH,TTL Input High Current (Magnitude), V_IN = 2.4 V, V_CC = 3.45 V µA
I_IL,TTL Input Low Current (Magnitude), V_IN = 0.4 V, V_CC = 3.45 V µA
I_CC,TRx[1,2] Transceiver V_CC Supply Current, T_A = 25°C
mA
2.2
V_CC
0
0.6
40
–600
200
Notes:
1. Measurement Conditions: Tested sending 1250 MBd PRBS 2⁷-1 sequence from a serial BERT with ± DOUT outputs biased with
150 Ω resistors.
2. Typical value specified with V_CC = 3.3 volts.