4-37

Infrared Reflow Profile

t2 = 11.5 ± .5 MINS. (SOLDER JOINT)

0

TIME (t)

250

200

150

100

50

0

300

2

4

6

8

10

12

14

t1 = 8 ± 1 MINS. (SOLDER JOINT)

T (MAX.) = 250 °C OR 235 °C (+5-0) °C

ANY PART OF COMPONENT BODY

3.5 ± .5 MINS.

(SOLDER JOINT)

T > 120 °C FOR t

GREATER THAN 2.5 MINS.

(SOLDER JOINT)

dT/dt < 3 °C/SEC.

185 °C

Recommended Operating Conditions

Parameter

Symbol

Min.

Max.

Units

Conditions

Operating Temperature

0

°

70

°

C

Supply Voltage

4.5

5.5

V

Logic High Transmitter Input Voltage

2.5

5.5

V

Logic Low Transmitter Input Voltage

0.0

0.3

V

Logic High Receiver Input Irradiance

0.0036

500

For in-band signals*

(870 nm)

Logic Low Receiver Input Irradiance

0.3

LED (Logic High) Current Pulse

250

mA

For one metre links with

Amplitude

daylight filters

Receiver Set-up Time

10

ms

For full sensitivity after

transmitting

Signal Rate

2.4

116

Kp/s

Ambient Light

See IrDA Serial Infrared

Physical Layer Link Speci-

fication, Appendix A for

ambient levels. See Rx

TH+ section at the end

of this data sheet also.

*Note: An in-band optical signal is a pulse/sequence where the peak wavelength,

λp, is defined as 850 nm ≤ λp ≤ 900 nm, the pulse

repetition rate, PRR, is defined as 2.4 Kp/s

≤ PRR ≤ 115.2 Kp/s and the pulse width, PW, is defined as 1.6 s ≤ PW ≤ (3/16)/PRR.