Data Sheet, Rev. 3
June 2001
FW802A Low-Power PHY
IEEE
Two-Cable Transceiver/Arbiter Device
Electrical Characteristics
Table 3. Analog Characteristics
Parameter
Supply Voltage
Differential Input Voltage
Test Conditions
Source power node
Cable inputs, 100 Mbits/s operation
Cable inputs, 200 Mbits/s operation
Cable inputs, 400 Mbits/s operation
Cable inputs, during arbitration
TPB cable inputs,
speed signaling off
TPB cable inputs,
S100 speed signaling on
TPB cable inputs,
S200 speed signaling on
TPB cable inputs,
S400 speed signaling on
TPB cable inputs,
speed signaling off
TPB cable inputs,
S100 speed signaling on
TPB cable inputs,
S200 speed signaling on
TPB cable inputs,
S400 speed signaling on
TPA, TPB cable inputs,
100 Mbits/s operation
TPA, TPB cable inputs,
200 Mbits/s operation
TPA, TPB cable inputs,
400 Mbits/s operation
Between TPA and TPB cable inputs,
100 Mbits/s operation
Between TPA and TPB cable inputs,
200 Mbits/s operation
Between TPA and TPB cable inputs,
400 Mbits/s operation
—
Symbol
V
DD—SP
V
ID—100
V
ID—200
V
ID—400
V
ID—ARB
V
CM
V
CM—SP—100
V
CM—SP—200
V
CM—SP—400
V
CM
V
CM—NSP—100
V
CM—NSP—200
V
CM—NSP—400
—
—
—
—
—
—
V
TH
+
Min
3.0
142
132
100
168
1.165
1.165
0.935
0.532
1.165
1.165
0.935
0.532
—
—
—
—
—
—
89
Typ
3.3
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Max
3.6
260
260
260
265
2.515
2.515
2.515
2.515
2.015
2.015
2.015
2.015
1.08
0.5
0.315
0.8
0.55
0.5
168
Unit
V
mV
mV
mV
mV
V
V
V
V
V
V
V
V
ns
ns
ns
ns
ns
ns
mV
Common-mode Voltage
Source Power Mode
Common-mode Voltage
Nonsource Power Mode*
Receive Input Jitter
Receive Input Skew
Positive Arbitration
Comparator Input
Threshold Voltage
Negative Arbitration
Comparator Input
Threshold Voltage
Speed Signal Input
Threshold Voltage
Output Current
TPBIAS Output Voltage
Current Source for
Connect Detect Circuit
—
V
TH
−
–168
—
–89
mV
200 Mbits/s
400 Mbits/s
TPBIAS outputs
At rated I/O current
—
V
TH—S200
V
TH—S400
I
O
V
O
I
CD
45
266
–5
1.665
—
—
—
—
—
—
139
445
2.5
2.015
76
mV
mV
mA
V
µA
* For a node that does not source power (see Section 4.2.2.2 in
IEEE
1394-1995 Standard).
Agere Systems Inc.
13
AGERE [ AGERE SYSTEMS ]
