6
Notes:
8. An in-band optical signal is a pulse/sequence where the peak wavelength, λp, is defined as 850 ≤ λp ≤ 900 nm, and the pulse characteristics are
compliant with the IrDA Serial Infrared Physical Layer Link Specification.
9. Logic Low is a pulsed response. The condition is maintained for duration dependent on pattern and strength of the incident intensity.
10. For in-band signals ≤ 115.2 kb/s where 3.6 μW/cm
2
≤ EI ≤ 500 mW/cm
2
.
11. For in-band signals at 1.15 Mb/s where 9.0 μW/cm
2
≤ EI ≤ 500 mW/cm
2
.
12. For in-band signals of 125 ns pulse width, 4 Mb/s, 4 PPM at recommended 400 mA drive current.
13. Pulse width specified is the pulse width of the second 500 kHz carrier pulse received in a data bit. The first 500 kHz carrier pulse may exceed
2 μs in width, which will not affect correct demodulation of the data stream. An ASK or DASK system using the HSDL-3602 has been shown to
correctly receive all data bits for 9 μW/cm
2
≤ EI ≤ 500 mW/cm
2
incoming signal strength. ASK or DASK should use the FIR channel enabled.
14. The wake up time is the time between the transition from a shutdown state to an active state, and the time when the receiver is active and ready
to receive infrared signals.
Electrical & Optical Specifications
Specifications hold over the Recommended Operating Conditions unless otherwise noted. Unspecified test condi-
tions can be anywhere in their operating range. All typical values are at 25C and 3.3 V unless otherwise noted.
Parameter
Symbol
Min.
Receiver
Receiver Data
Logic Low
V
OL
0
Output Voltage
Logic High
V
OH
V
CC
– 0.2 —
Viewing
2θ
1/2
30
Angle
Logic High Receiver Input
EI
H
0.0036
Irradiance
0.0090
Logic Low Receiver Input
EI
L
Irradiance
Receiver Peak Sensitivity
λ
P
Wavelength
Receiver SIR Pulse Width
tpw (SIR) 1
Receiver MIR Pulse Width
tpw (MIR) 100
Receiver FIR Pulse Width
tpw (FIR) 85
Receiver ASK Pulse Width
tpw (ASK)
Receiver Latency Time for FIR
t
L
(FIR)
Receiver Latency Time for SIR
t
L
(SIR)
Receiver Rise/Fall Times
t
r/f
(RXD)
Receiver Wake Up Time
t
W
Typ.
Max.
Units
Conditions
—
0.4
V
CC
V
V
I
OL
= 1.0 mA,
EI ≥ 3.6 μW/cm
2
,
θ
1/2
≤ 15
I
OH
= –20 μA,
EI ≤ 0.3 μW/cm
2
,
θ
1/2
≤ 15
500
500
0.3
mW/cm
2
For in-band signals
≤ 115.2 kb/s
[8]
mW/cm
2
0.576 Mb/s ≤ in-band
signals ≤ 4 Mb/s
[8]
μW/cm
2
For in-band signals
[8]
880
nm
1
40
20
25
4.0
500
165
190
50
50
100
μs
ns
ns
ns
μs
μs
μs
ns
μs
θ
1/2
≤ 15
[10]
, C
L
= 10 pF
θ
1/2
≤ 15
[11]
, C
L
= 10 pF
θ
1/2
≤ 15
[12]
, C
L
= 10 pF,
V
CC
= 3 to 3.6 V
θ
1/2
≤ 15
[12]
, C
L
= 10 pF,
V
CC
= 2.7 V
500 kHz/50% duty cycle
carrier ASK
[13]
[14]