SN75LBC773

GEOPORT

™ TRANSCEIVER

SLLS247C – FEBRUARY 1997 – NOVEMBER 1997

6

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

VI

II

IO

DY1

VO

CL

RL

DA1

VI

VO

VO

CL

CL

RL

RL

DY2

IO

IO

DZ2

II

DEN

DA2

NOTE A: CL = 50 pF

Figure 1. Single-Ended Driver DC Parameter Test Circuits

VI

VOD

DY2

DZ2

II

DA2

60

Ω

60

Ω

50 pF

IO

DEN

Figure 2. Differential Driver DC Parameter Test Circuit

VI

VOD

DY2

DZ2

DA2

60

Ω

60

Ω

15 pF

TEST CIRCUIT

VOC

1.5 v

1.5 v

VOC(PP)

VOC(SS)

3 V

0 V

0 V

VI

VOC

VOLTAGE WAVEFORM

DEN

NOTE A: Measured 3dB Bandwidth = 300 MHz

Figure 3. Differential Driver Common-Mode Output Voltage Test Circuit