afbr-r524z Avago Technologies, afbr-r524z Datasheet - Page 6

• Manufacturer Part Number: afbr-r524z
• Description: 50 Megabaud Versatile Link Fiber Optic Transmitter And Receiver For 1mm Pof
• Manufacturer: Avago Technologies

AFBR-T524Z Transmitter
The AFBR-T524Z transmitter incorporates a 650nm LED and integrated driver IC in a light gray, nonconductive plastic
Versatile Link housing. Its input data is compatible with TTL logic level. This transmitter can operate from 8MBd to 50MBd
with bi-phase encoded scheme using 1mm plastic optical fiber (POF).
Transmitter Electrical Characteristics
(T
Notes:
1. For 50% duty cycle data.
2. Standard TTL compatible input.
3. After a static 0 is received on Data In for t
4. After modulated data is received on Data In for t
Transmitter Optical Characteristics
(T
Notes:
5. Measured for 50% duty cycle data after 1meter 0.5 NA 1mm POF with polished connector end face using a large area detector.
6. Central wavelength is defined as:
7. Pulse width is measured at 50% threshold using a rising edge trigger and a worst case bi-phase test pattern.
8. Electrical input is bi-phase coded at 25Mbps (50MBd)
6
Parameter
Supply Current
Optical Power ON Delay
Optical Power OFF Delay
Input Voltage – Low
Input Voltage – High
Data Input Capacitance
Data Input Resistance
Parameter
Output Optical Power (Average),
Normal Power
Output Optical Power (Average), OFF
Extinction Ratio
Spectrum Central Wavelength
Rise Time (20%–80%)
Fall Time (20%–80%)
Pulse Width Variation
(Optical Power ON)
A
A
Ref: EIA/TIA standard FOTP-127/6.1, 1991
λ
= 0°C to +85°C, Vcc
= 0°C to +85°C, Vcc
c =
N
Σ P
i = 1
N
Σ P
i = 1
i
λ
i
i
;
T
T
= 5V ± 5%)
= 5V ± 5%)
OFF2
µs, the transmitter optical output power drops to a level below –50dBm.
Symbol
I
t
t
V
V
C
R
Symbol
P
P
ER
λ
t
t
PWV
ON2
CCT
ON2
OFF2
RT
FT
IL
IH
IN
N
S
c
IN
µs, the transmitter exits the “OFF” state to enter normal operating “ON” state.
Min
–0.3
2.0
2
Min
-8.5
10
635
18
Typical
Typical
-6
Max
40
7
50
0.8
Vcc+0.3
7
Max
-2
-50
670
6.0
6.0
22
Unit
mA
µs
µs
V
V
pF
kΩ
Unit
dBm
dBm
dB
nm
ns
ns
ns
Notes
1
4
3
2
2
Notes
5
6
7,8