Datasheet

Electrical Characteristics
182
March 5 2007 − June 2011SCPS154C
11.8 Thermal Information
THERMAL METRIC
†
XIO2200A
UNITS
THERMAL METRIC
†
ZGW (176 PINS)
UNITS
θ
JA
Junction−to−ambient thermal resistance 39.2
θ
JCtop
Junction−to−ambient (top) thermal resistance 8.9
θ
JB
Junction−to−board thermal resistance 20.1
°C/W
Ψ
JT
Junction−to−top charactaerization parameter 0.3
°C/W
Ψ
JB
Junction−to−board characterization parameter 20.4
θ
JCbot
Junction−to−case (bottom) thermal resistance N/A
†
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
11.9 Switching Characteristics for 1394a PHY Port Driver
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Jitter, transmit Between TPA and TPB ±0.15 ns
Skew, transmit Between TPA and TPB ±0.1 ns
t
r
TP differential rise time, transmit 10% to 90%, at 1394 connector 0.5 1.2 ns
t
f
TP differential fall time, transmit 90% to 10%, at 1394 connector 0.5 1.2 ns
11.10 Electrical Characteristics Over Recommended Operating Conditions (1394a PHY
Port Receiver)
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Z
Differential impedance
Drivers disabled
4 7 kΩ
Z
ID
Differential impedance Drivers disabled
4 pF
Z
Common mode impedance
Drivers disabled
20 kΩ
Z
IC
Common-mode impedance Drivers disabled
24 pF
V
TH-R
Receiver input threshold voltage Drivers disabled −30 30 mV
V
TH-CB
Cable bias detect threshold. TPBx
cable inputs
Drivers disabled 0.6 1 V
V
TH+
Positive arbitration comparator
threshold voltage
Drivers disabled 89 168 mV
V
TH−
Negative arbitration comparator
threshold voltage
Drivers disabled −168 −89 mV
V
TH-SP200
Speed signal threshold
TPBIAS−TPA common mode voltage, drivers
disabled
49 131 mV
V
TH-SP400
Speed signal threshold
TPBIAS−TPA common mode voltage, drivers
disabled
314 396 mV
V
Differential input voltage
Cable inputs, during data reception 118 260
mV
V
ID
Differential input voltage
Cable inputs, during arbitration
168 265
mV
V
Common mode input voltage
TPB cable inputs, source power node 0.4706 2.515
V
V
IC
Common-mode input voltage
TPB cable inputs, nonsource power node
†
0.4706 2.015
V
†
For a node that does not source power, see IEEE Std 1394a-2000.
Not Recommended for New Designs