Agere Systems Inc.

7

Data Sheet

January 1999

BDG1A, BDP1A, BDGLA, BPNGA, BPNPA, and

Quad Differential Drivers

Test Conditions

Parametric values specified under the Electrical Char-

acteristics and Timing Characteristics sections for the

data transmission driver devices are measured with the

following output load circuits.

BDG1A, BPNGA, BDGLA, BPPGA (Gates A & B)

12-2271F

BDP1A, BPNPA, BPPGA (Gates C & D)

12-2271.bC

Figure 4. Driver Test Circuit

12-2640.aF

Note: Surges can be applied simultaneously, but never in opposite

polarities.

Figure 5. Lightning-Surge Testing Configuration

(BPNGA, BPNPA, and BPPGA)

Output Characteristics

Figure 6 illustrates typical driver output characteristics.

Included are load lines for two typical termination con-

figurations.

12-2269F

A. Output Current vs. Output Voltage for Loads

Shown in C and D (BDG1A, BDP1A, BPNGA,

BPNPA, and BPPGA)

12-2818aC

B. Output Current vs. Output Voltage for Loads

Shown in C and D (BDGLA)

12-2270F

C. Y Load

12-2271F

D.

π Load

Figure 6. Driver Output Current vs. Voltage

Characteristics

DO(+)

DO(–)

200

Ω

200

Ω

100

Ω

DO

DO

100

Ω

DUT

+

–

110

Ω

110

Ω

+

–

+5 V

+60 V

SURGE

10

µs

DURATION

1 ms

REPITITION

+60 V

SURGE

10

µs

DURATION

1 ms

REPETITION

10

20

30

40

Y LOAD

π LOAD

OUTPUT VOLTAGE (V)

10

20

30

40

Y LOAD

π LOAD

OUTPUT VOLTAGE (V)

DO

60

Ω

60

Ω

90

Ω

DO

DO(+)

DO(–)

200

Ω

200

Ω

100

Ω