6

Board Layout – Hole Pattern

The Avago transmitter and receiver hole pattern is com-

patible with other data link modules from other vendors.

The drawing shown in Figure 7 can be used as a guide in

the mechanical layout of your circuit board.

Regulatory Compliance

These data link modules are intended to enable com-

mercial system designers to develop equipment that

complies with the various international regulations

governing certification of Information Technology Equip-

ment. Additional information is available from your Avago

sales representative.

All HFBR-1119TZ LED transmitters are classified as

IEC-825-1 Accessible Emission Limit (AEL) Class 1 based

upon the current proposed draft scheduled to go into

effect on January 1, 1997. AEL Class 1 LED devices are con-

sidered eye safe. See Application Note 1094, LED Device

Classifications with Respect to AEL Values as Defined in the

IEC 825-1 Standard and the European EN60825-1 Directive.

The material used for the housing in the HFBR-1119TZ/-

2119TZ series is Ultem 2100 (GE). Ultem 2100 is recog-

nized for a UL flammability rating of 94V-0 (UL File Number

E121562) and the CSA (Canadian Standards Association)

equivalent (File

Number LS88480).

Figure 7. Recommended board layout hole pattern.

(7X) 2.54

.100

17.78

.700

7.62

.300

0.8 ± 0.1

.032 ± .004

(16X) ø

Ø 0.000 MA

–A–

TOP VIEW

UNITS = mm/INCH

Figure 8. Typical transmitter output optical spectral width (FWHM) vs.

transmitter output optical center wavelength and rise/fall times.

Figure 9. HFBR-2119TZ receiver relative input optical power vs. eye sampling

time position.

c – TRANSMITTER OUTPUT OPTICAL

CENTER WAVELENGTH – nm

140

100

1300

220

1320

60

180

0

8

3

1

0

8

2

1

1340

80

120

160

200

1360

TRANSMITTER

OUTPUT OPTICAL

RISE TIMES – ns

tr = 1.8 ns

tr = 1.9 ns

tr = 2.0 ns

tr = 2.1 ns

tr = 2.2 ns

HFBR-1119TZ TYPICAL TRANSMITTER TEST

RESULTS OF c,

AND tr ARE CORRELATED

AND COMPLY WITH THE ALLOWED SPECTRAL

WIDTH AS A FUNCTION OF CENTER WAVELENGTH

FOR VARIOUS RISE AND FALL TIMES.

EYE SAMPLING TIME POSITION – ns

4

2

-1

5

-0.5

0

5

.

1

5

.

1

-

0.5

1

3

1

CONDITIONS:

1. TA = 25 °C

2. VCC = 5 Vdc

3. INPUT OPTICAL RISE/FALL TIMES = 1.0/1.9 ns

4. INPUT OPTICAL POWER IS NORMALIZED

TO CENTER OF DATA SYMBOL

5. NOTES 11 AND 12 APPLY

0