BTK1A Datasheet, PDF (5/18 Pages) Agere Systems – Dual Differential Transceivers BTK1A and BTM1A

Data Sheet
October 2001
Dual Differential Transceivers
BTK1A and BTM1A
Electrical Characteristics (continued)
Table 5. Receiver Voltage and Current Characteristics
For variation in minimum VOH and maximum VOL over the temperature range, see Figure 10.
TA = −40 °C to +125 °C.
Parameter
Symbol
Min
Typ
Max
Unit
Output Voltages VCC = 4.5 V:
Low, IOL = 8.0 mA*
VOL
—
—
0.5
V
High, IOH = −400 µA
VOH
2.4
—
—
V
Enable Input Voltages:
Low, VCC = 5.5 V
VIL*
—
—
0.7
V
High, VCC = 4.5 V
VIH*
2.0
—
—
V
Clamp, VCC = 4.5 V, II = –5.0 mA
VIK
—
—
−1.0
V
Minimum Differential Input Voltages, VIH – VIL:^†
−0.80 V < VIH < 7.2 V, −1.2 V < VIL < 6.8 V
VTH*
—
0.1
0.20
V
Input Offset Voltage
VOFF

0.03
0.05
V
Output Currents, VCC = 5.5 V:
Off-state (high Z), VO = 0.4 V
IOZL
—
—
–20
µA
Off-state (high Z), VO = 2.4 V
Short Circuit
IOZH
—
IOS^‡
–25
—
20
µA
—
–100
mA
Enable Input Currents, VCC = 5.5 V:
Low, VIN = 0.4 V
IIL
—
—
–400
µA
High, VIN = 2.7 V
IIH
—
—
20
µA
Reverse, VIN = 5.5 V
IIH
—
—
100
µA
Differential Input Currents, (BTK1A):
Low, VIN = –1.2 V
IIL
—
—
−1.0
mA
High, VIN = 7.2 V
IIH
—
—
1.0
mA
Differential Input Impedance (BTM1A):
Connected Between RI and RI
R1
—
110
—
Ω
* 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.
Agere Systems Inc.
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