cxd1944r Sony Electronics, cxd1944r Datasheet - Page 6

• Manufacturer Part Number: cxd1944r
• Description: Ieee1394 3-port 200mbps Cable Transceiver/arbiter
• Manufacturer: Sony Electronics

Recommended Operating Conditions
Electrical Characteristics
Driver
Differential output voltage
Common mode current
Speed signal common mode current
Common mode voltage when driver is off
NOTES:
1. For output current, all source current is positive (+) and sink current is negative (–).
2. Common mode current is the average value of the currents output from TPB+ and TPB–. The same applies to TPA+ and TPA–.
Supply voltage
High level input
Low level input
Differential input
Differential input
Differential input
Common input
Common input
Differential input jitter
Differential input skew
Differential input jitter
Differential input skew
Output current
Item
(1)
Item
(2)
V
V
V
V
V
V
V
V
JTT100
SKW100
JTT200
SKW200
I
I
OH
O
Symbol
DD
IH
IL
ID-100
ID-200
ID-ARB
CM-100
CM-200
/I
OL
(2)
XRESET, LPS, LREQ, CTL0
XRESET, LPS, LREQ, CTL0
Cable input, 100Mbps
Cable input, 200Mbps
Cable input, Arbitration
TpB Cable input, 100Mbps or
speed signaling off
TpB Cable input, 200Mbps,
speed signaling on
Cable input, 100Mbps
Between TpA and TpB, 100Mbps
Cable input, 200Mbps
Between TpA and TpB, 200Mbps
SYSCLK, CTL0, CTL1, D0, D1,
D2, D3, CMC/LKON
TB1, TB2, TB3
(2)
Symbol
V
I
I
V
CM
CM-SP
OD
OFF
Conditions
55
Driver on, speed signaling off –0.40
200Mbps speed signaling on
Driver off, speed signaling off
–6–
load
Conditions
0.8V
1.165
0.935
–1.3
Min.
±12
142
132
171
3.0
DD
–4.84
Min.
172
Typ.
3.3
Typ.
0.2V
2.515
2.515
±1.08
±0.80
±0.50
±0.55
Max.
9.68
260
260
260
3.6
–2.53
Max.
0.22
265
20
DD
CXD1944R
Unit
Unit
mV
mV
mV
mA
mA
mV
mA
mA
mV
ns
ns
ns
ns
V
V
V
V
V