Agere Systems Inc.
5
Data Sheet
October 2001
BTK1A and BTM1A
Dual Differential Transceivers
Electrical Characteristics
(continued)
Table 5. Receiver Voltage and Current Characteristics
For variation in minimum V
OH
and maximum V
OL
over the temperature range, see Figure 10.
T
A
=
40
°
C to +125
°
C.
* The input levels and difference voltage provide zero noise immunity and should be tested only in a static, noise-free environment.
Outputs of unused receivers assume a logic 1 level when the inputs are left open. (It is recommended that all unused positive inputs
be tied to the positive power supply. No external series resistor is required.)
Test must be performed one lead at a time to prevent damage to the device.
Parameter
Symbol
Min
Typ
Max
Unit
Output Voltages V
CC
= 4.5 V:
Low, I
OL
= 8.0 mA*
High, I
OH
=
400
μ
A
Enable Input Voltages:
Low, V
CC
= 5.5 V
High, V
CC
= 4.5 V
Clamp, V
CC
= 4.5 V, I
I
=
–
5.0 mA
Minimum Differential Input Voltages, V
IH
–
V
IL
:
0.80 V < V
IH
< 7.2 V,
1.2 V < V
IL
< 6.8 V
Input Offset Voltage
Output Currents, V
CC
= 5.5 V:
Off-state (high Z), V
O
= 0.4 V
Off-state (high Z), V
O
= 2.4 V
Short Circuit
Enable Input Currents, V
CC
= 5.5 V:
Low, V
IN
= 0.4 V
High, V
IN
= 2.7 V
Reverse, V
IN
= 5.5 V
Differential Input Currents, (BTK1A):
Low, V
IN
=
–
1.2 V
High, V
IN
= 7.2 V
Differential Input Impedance (BTM1A):
Connected Between RI and RI
V
OL
V
OH
—
2.4
—
—
0.5
—
V
V
V
IL
*
V
IH
*
V
IK
—
2.0
—
—
—
—
0.7
—
1.0
V
V
V
V
TH
*
V
OFF
—
0.1
0.03
0.20
0.05
V
V
I
OZL
I
OZH
I
OS
—
—
–
25
—
—
—
–
20
20
–
100
μA
μA
mA
I
IL
I
IH
I
IH
—
—
—
—
—
—
–
400
20
100
μA
μA
μA
I
IL
I
IH
—
—
—
—
1.0
1.0
mA
mA
R
1
—
110
—