8
AFBR-25x1CZ Receiver
The AFBR-25x1CZ receiver consists of a digitalizing IC with integrated photodiode to produce an output level that is
compatible with TTL logic. The integrated photodiode and the following amplier use a fully dierential approach with
an active and a passive area for an improved EMI performance. Within the specied ranges the AFBR-25x1CZ devices
support a BER <10E-9.
Receiver Electrical Characteristics
(T
A
= -40 °C to +85 °C, V
CC
= 3.3 V ± 5% or 5 V ± 5%)
Parameter Symbol Min Typical Max Unit Notes
Supply Current I
CC
6 10 mA 1
Data Output Voltage – Low V
OL
–0.3 0.4 V 2
Data Output Voltage – High V
OH
2.5 Vcc+0.3 V 2
Rise Time (10%–90%) t
R
10 ns 3
Fall Time (90%–10%) t
F
10 ns 3
Pulse Width Distortion PWD -30 30 ns 3, 4, 5, 6
Propagation Delay t
D
60 ns 3, 4
Propagation Skew t
skew
20 ns 3, 4, 7
Vcc level to deactivate POR V
POR_DEACT
2.8 V 1, 8
Vcc level to activate POR V
POR_ACT
2.6 V 1, 8
POR deactivate delay time t
POR_DEACT_DEL
100 µs 1, 8
Receiver Optical Characteristics
(T
A
= -40 °C to +85 °C, V
CC
= 3.3 V ± 5% or 5 V ± 5%)
Parameter Symbol Min Typical Max Unit Notes
Input Optical Power POF (Peak) P
IN
-24 1 dBm 9
Input Optical Power PCS (Peak) P
IN
-26 -2 dBm 10
Input Optical Power O-State POF P
IN_O
-40 dBm 9
Input Optical Power O-State PCS P
IN_O
-43 dBm 10
Optical Spectrum Range
λ
630 685 nm
Notes:
1. Typical values measured at 25°C and 5V
2. Standard TTL output.
3. Measured with RL =1MW and C
L
=20pF
4. Guaranteed only if optical input signal is generated by AFBR-15x9Z or AFBR-16x9Z, with ideal alignment to the photodiode using a 1mm POF
(NA=0.5).
5. Optical input of 5MBaud PRBS-7 pattern and 50 % duty cycle. Input rise time (10%-90%)<=20ns, Input fall time (90%-10%)<=20ns
6. Pulse width is measured at 50% threshold using a rising edge trigger and PRBS-7 pattern.
7. Only valid for same input signal characteristics and environmental conditions. Optical input power has to be >=-21dBm
8. Power-on reset (POR) is active below V
POR_DEACT
. Once V
POR_DEACT
is reached the POR remains active for t
POR_DEACT_DEL
. During power down POR
starts at V
POR_ACT
. Refer to gure 5 (next page).
9. Measured at the end of a 0.5m POF (1mm 0.5 NA) with a large area optical detector
10. Measured at the end of a 0.5m PCS (200µm, 0.37 NA) with a large area optical detector
