HDMP-1638G (TRx) Thermal and Power Temperature Characteristics
T = 0°C to +70°C, V = 3.15 V to 3.45 V
A
CC
Symbol
Parameter
Units
Typ.
Max.
[1,2]
P
Transceiver Power Dissipation, one Output Pair Open,
Parallel Data Has 5 Ones and 5 Zeroes.
mW
840
TBD
D, TRx
[1,2,3]
P
Transceiver Power Dissipation, Outputs Connected Per
Recommended Bias Terminations with Idle Pattern
mW
890
10
TBD
D, TRx
[4]
Q
Thermal Resistance, Junction to Case
°C/W
jc
Notes:
1. P is obtained by multiplying V by I and subtracting the power dissipated outside the chip at the high speed bias resistors.
D
CC
CC
2. Typical specified with V = 3.3 volts, maximum value specified with V = 3.45 volts.
CC
CC
3. Specified with high speed outputs biased with 150 Ω resistors and receiver TTL outputs driving 10 pF loads.
4. Based on independent package testing by Avago Technologies. Q for these devices is 48°C/W for the HDMP-1638G. Q is measured on a
ja
ja
standard 3x3” FR4 PCB in a still air environment. To determine the actual junction temperature in a given application, use the following: T =
J
T +(Q x Pd), where T is the case temperature measured on the top center of the package and P is the power being dissipated.
C
jc
C
D
I/ O Type Definitions
I/ O Type
I-TTL
O-TTL
HS_OUT
HS_IN
C
Definition
Input TTL, Floats High When Left Open
Output TTL
High Speed Output, ECL Compatible
High Speed Input
External Circuit Node
Power Supply or Ground
Positive ECL
S
PECL
HDMP-1638G (TRx) Pin Input Capacitance
Symbol
Parameter
Units
Typ.
Max.
C
Input Capacitance on TTL Input Pins
pF
1.6
INPUT
10
PMC-Sierra, Inc. - Not Recommended for New Designs
PMC [ PMC-SIERRA, INC ]
