Electrical and Optical Specifications (Cont’d.)
Parameter
Transceiver
Input Current
Supply Current
High
Low
Shutdown
Active
I
H
I
L
I
CC1
I
CC3
–1
0.01
–0.02
0.01
50
300
1
1
1
100
µA
µA
µA
µA
µA
V
I
≥
V
IH
0
≤
V
I
≤
V
IL
V
SD
≥
V
CC
– 0.5, T
A
= 25ºC
V
I(TxD)
≤
V
IL
, EI = 0
V
I(TxD)
≥
V
IL
, EI = 10 mW/cm
2
Symbol
Min.
Typ.
Max.
Units
Conditions
Idle (Standby) I
CC2
Notes:
3. An in-band optical signal is a pulse/sequence where the peak wavelength,
l
P
, is defined as 850 nm
≤
l
P
≤
900 nm, and the pulse characteristics are
compliant with the IrDA Serial Infrared Physical Layer Link Specification version 1.4.
4. For in-band signals 9.6 kbit/s to 115.2 kbit/s where 9
µW/cm
2
≤
EI
≤
500 mW/cm
2
.
5. Latency is defined as the time from the last TxD_IrDA light output pulse until the receiver has recovered full sensitivity.
6. Receiver Wake Up Time is measured from V
CC
power ON to valid RxD_IrDA output.
7. Transmitter Wake Up Time is measured from V
CC
power ON to valid light output in response to a TxD_IrDA pulse.
8. The Optical PW is defined as the maximum time which the IR LED will turn on; this is to prevent the long Turn On time for the IR LED.
IR ILED vs. VLEDA
300
250
200
100
IR Light Output Power (LOP) vs. ILED
80
LOP (mW/Sr)
ILED (mA)
60
150
100
50
0
1.5
40
20
0
2.0
2.5
3.0
3.5
4.0
0
50
100
150
ILED (mA)
200
250
300
VLEDA (V)
Figure 3. VLEDA vs. ILEDA at room temperature
for IR mode.
Figure 4. ILEDA vs. LED radiant intensity at room
temperature for IR mode.
RC ILED vs. VLEDA
350
300
250
200
150
100
50
0
1.50
1.75
VLEDA (V)
2.00
2.25
RC LIGHT OUTPUT POWER (LOP) vs. ILED
120
100
80
60
40
20
0
100 125 150 175 200 225 250 275 300 325
ILED (mA)
Figure 5. VLEDA vs. ILEDA at room temperature
for RC mode.
Figure 6. ILEDA vs. LED radiant intensity at room
temperature for RC mode.
7
LOP (mW/Sr)
ILED (mA)
AVAGO [ AVAGO TECHNOLOGIES LIMITED ]
