HDMP-1685A Datasheet, PDF (9/21 Pages) Agilent(Hewlett-Packard) – 1.25 Gbps Four Channel SerDes with 5-pin DDR SSTL-2 Parallel Interface

HDMP-1685A Absolute Maximum Ratings
T_A = 25°C, except as specified. Sustained operation at or beyond any of these conditions may result in long-term
reliability degradation or permanent damage, and is not recommended.
Symbol
Parameter
Units Min.
Max.
V_CC
Supply Voltage
V
–0.5
5.0
V_IN,LVTTL
RFCT LVTTL Input Voltage
V
–0.7
V_CC + 2.8
V_IN,SSTL
SSTL Input Voltage
V
–0.7
V_CC + 0.7
V_{IN,HS_IN}
T_stg
T_j
T_C
HS_IN Input Voltage (Differential)
Storage Temperature
Junction Temperature
Case Temperature
V
2.2
°C
–65
+150
°C
0
+125
°C
0
95
HDMP-1685A Guaranteed Operating Rates
T_A = 0°C to T_C = 85°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-1685A Reference Clock and Transmit Byte Clock Requirements
T_A = 0°C to T_C = 85°C, V_CC = 3.15 V to 3.45 V
Symbol
Parameter
f
Nominal Frequency
F_tol
Frequency Tolerance
Symm_RFC
Symmetry (Duty Cycle) Reference Clock
Symm_TC
Symmetry (Duty Cycle) Transmit Byte Clock
Units
MHz
ppm
%
%
Min.
Typ.
125
–100
40
40
Max.
+100
60
60
HDMP-1685A LVTTL I/O DC Electrical Specifications
T_A = 0°C to T_C = 85°C, V_CC = 3.15 V to 3.45 V
Symbol
Parameter
V_IH,LVTTL
LVTTL Input High Voltage Level,
Guaranteed High Signal for All Inputs
V_IL,LVTTL
LVTTL Input Low Voltage Level,
Guaranteed Low Signal for All Inputs
V_OH,LVTTL
V_OL,LVTTL
I_IH,LVTTL
I_IL,LVTTL
LVTTL Output High Voltage Level, I_OH = –400 µA
LVTTL Output Low Voltage Level, I_OL = 1 mA
Input High Current, V_IN = 2.4 V, V_CC = 3.45 V
Input Low Current, V_IN = 0.4 V, V_CC = 3.45 V
Units
V
V
V
V
µA
µA
Min.
Typ.
2
0
2.2
0
Max.
5.5
0.8
V_CC
0.5
40
–600
8