afbr-820bz Avago Technologies, afbr-820bz Datasheet - Page 11

• Manufacturer Part Number: afbr-820bz
• Description: Twelve-channel Transmitter And Receiver Pluggable, Parallel-fiber-optic Modules
• Manufacturer: Avago Technologies

Receiver Electrical Characteristics*
The following characteristics are defined over the Recommended Operating Conditions unless otherwise noted. Typical
values are for Tc = 40°C, Vcc33 = 3.3 V and Vcc25 = 2.5 V.
Notes:
*
1. Max conditions include default output amplitude and de-emphasis programming.
2. Supply current includes that of all Vcc25 contacts. Max conditions include maximum output amplitude and de-emphasis programming.
3. Supply current includes that of all Vcc33 contacts. Max conditions include maximum output amplitude and de-emphasis programming.
4. Data outputs are CML compatible. Data Output Differential Peak to Peak Voltage Swing is defined as follows: 'V
5. Data Output Common Mode Voltage is defined as follows: V
6. These are unfiltered rise and fall times without de-emphasis measured between the 20% and 80% levels using a 500 MHz square wave test pattern.
7. This is the module response time from fall of Rx input to less than Rx input LOS threshold to squelch of Rx outputs.
8. This is the module response time from rise of Rx input to greater than Rx input LOS threshold to resumption of Rx outputs.
9. Deterministic Jitter, DJ, conforms to the dual-Dirac model where TJ(BER) = DJ + 2Q(BER)RJrms and RJrms is the width of the Gaussian component.
10. Total Jitter, TJ, defined for BER of 10
11. Eye Opening is defined as the unit interval less TJ for the same test pattern and conditions as TJ.
12. Measured over the range 100 MHz to 3.75 GHz with reference differential impedance of 100 :
13. Measured over the range 100 MHz to 3.75 GHz with reference common mode impedance 25 :
14. Measured over the range 100 MHz to 3.75 GHz with reference differential impedance 100 :
15. Power On Initialization Time is the time from when the supply voltages reach and remain within Recommended Operating Conditions to the time
16. Inter-Channel Skew is defined for the condition of equal amplitude, zero ps skew input signals.
11
Parameter
Power Consumption
Power Supply Current (Vcc25)
Power Supply Current (Vcc33)
Data Output Differential Peak-to-Peak
Voltage Swing (Zero De-emphasis)
Data Output Common Mode Voltage
Data Output Off State Differential Voltage
Data Output Off Common Mode Voltage
Output Rise/Fall time (20-80%)
LOS to Data Output Squelch Assert Time
Data Output Squelch De-assert Time
Reference Link Output Deterministic Jitter
Reference Link Output Total Jitter
Reference Link Output Eye Width
Differential Output Impedance
Differential Output Reflection Coefficient
Common Mode Output Reflection
Coefficient
CM to Differential Output Reflection
Coefficient
Power On Initialization Time
Inter-channel Skew
Rx Input-Output Latency
For control signal timing including Adr[2:0], IntL, ResetL, SCL and SDA see Control Characteristics: Transmitter/Receiver.
'V
to the test system are removed.
Impairments in measurements due to the test system are removed.
Here BER = 10
in the test signals due to the test system are removed from the measurement. All channels not under test are operating with similar test patterns
at an input signal 6 dB above maximum Receiver Sensitivity.
operating at 10 GBd with characteristics that are equivalent to that of an AFBR 810B transmitter module and maximum cable length operating per
the Recommended Operation Conditions as the test source. Effects of impairments in the test signals due to the test system are removed from the
measurement. All channels not under test are operating with similar test patterns.
when the module enables TWS access. The module at that point is fully functional.
DOH
= High State Differential Data Output Voltage and 'V
-12
. DJ is measured with the same conditions as TJ. The receiver output is measured with default de-emphasis. Effects of impairments
-12
, is measured at the 50% signal level using test pattern 2 defined in IEEE P802.3ae clause 52.9.1, or equivalent,
Symbol
'V
V
ΔV
V
t
t
t
S
S
S
t
SQ ON
SQ OFF
EYE LINK
PWR INIT
DD22
CC22
DC22
DO CM
DO OFF CM
DO pp
DO OFF
DO CM
DOL
= Low State Differential Data Output Voltage. Impairments in measurements due
= (V
Min
775
415
1.785
30
80
Doutp
+ V
Doutn
Typ
850
490
-10
-8
-35
)/2.
Max
2
670
200
925
565
2.540
20
Vcc25
80
80
300
35
70
120
500
150
600
Units
W
mA
mA
mVpp
V
mVpp
V
ps
Ps
Ps
ps
ps
ps
:
dB
dB
dB
ms
ps
ps
DO pp
= 'V
Reference
1
2
3
4, Figure 14,
100 : Load Full
Scale Setting
Default Ampli-
tude Setting
5, Figure 14,
Over Amplitude
Setting Range
6
7, Figure 22
8, Figure 22
9, Informative
10
11
Informative
12, Figure 3
13, Figure 3
14, Figure 3
15, Figure 18
16
Informative
DOH
- 'V
DOL
where