jsh-85l3aa1-10 ETC-unknow, jsh-85l3aa1-10 Datasheet - Page 4

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jsh-85l3aa1-10

Manufacturer Part Number
jsh-85l3aa1-10
Description
Fibre Channel Compliant 1310 Limiting Transceiver
Manufacturer
ETC-unknow
Datasheet
4
Notes

ported. Good impedance matching for the driver and receiver is required.


* Transmission lines should be 100 W differential traces. Vias and other transmission line discontinuities should be avoided. In order to meet the host ∆T output jitter and ∆R jit-
ter tolerance requirements it is recommended that the PHY has both transmitter pre-emphasis to equalize the transmitter traces and receiver equalization to equalize the receiver
traces. With appropriate transmitter pre-emphasis and receiver equalization, up to 8 dB of loss at 5 GHz can be tolerated.
** R5 and R6 are required when an Open Collector driver is used in place of CMOS or TTL drivers. 5 kW value is appropriate.
*** The value of R
capacitive loading at 100 kHz clock frequency.
Open Collector Driver
(RS0 Rx Rate Select)
(RS1 Tx Rate Select)
CMOS or TTL Driver
CMOS or TTL Driver
Power supply filtering components should be placed as close to the V
Receiver (Tx Fault)
PECL driver and receiver components will require biasing networks. Please consult application notes from suppliers of these components. CML I/O on the PHY are sup-
CMOS, TTL, or
Receiver (LOS)
Open Collector
Open Collector
SDA and SCL should be bi-directional open collector connections in order to implement serial ID in JDSU SFP+ transceiver modules.
(Tx Disable)
Bidirectional
Bidirectional
Mod_ABS
Power supply filter component values are provided on page 7.
R1/R2 and R3/R4 are normally included in the output and input of the PHY. Please check the application notes for the IC in use.
SDA
SCL
p
and R
q
10 kΩ
depend on the capacitive loading of these lines and the two wire interface clock frequency. See SFF-8431. A value of 10 kW is appropriate for 80 pF
Rq
10 kΩ
10 kΩ
Rp***
Figure 2
Vcc
***
Vcc
Vcc
Vcc
Vcc
R5 ∗∗
R6 ∗∗
Recommended application schematic for the 8 G SFP+ optical transceiver
Vcc
Vcc
Section 2
10 VeeR
1 VeeT
3 Tx Disable
4 SDA
5 SCL
6 MOD_ABS
2 Tx Fault
7 RS0
8 LOS
9 RS1
cc
pins of the host connector as possible for optimal performance.
8.5 G F IBRE CHANNEL COMPLIANT SFP+
1310 NM LIMITING TRANSCEI vER
VeeT 20
VeeT 17
VccT 16
VccR 15
VeeR 14
VeeR 11
RD+ 13
RD-
TD- 19
TD+ 18
12
Application Schematic
C3
C4
Z
*
= 100 Ω
C6
Z
*
Rx
= 100 Ω
Ry
C5
L1
L2
R1
R2
*
*
50 Ω
50 Ω
R4
50 Ω
R3
50 Ω
*
*
C2
Power Supply Filter
PECL Receiver
(RX DATA)
PECL Driver
(TX DATA)
C1
Vcc +3.3V
Input

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