MAX9271GTJ+T Maxim Integrated, MAX9271GTJ+T Datasheet - Page 34

• Manufacturer Part Number: MAX9271GTJ+T
• Description: Serializers & Deserializers - Serdes 1.5Gbps 16Bit Coax/STP serializer
• Manufacturer: Maxim Integrated
• Type: Serializerr

Specifications of MAX9271GTJ+T

• Rohs: yes
• Data Rate: 1.5 Gbit/s
• Input Type: CMOS/LVCMOS
• Output Type: CML
• Number Of Inputs: 16
• Number Of Outputs: 1
• Operating Supply Voltage: 1.7 V to 3.6 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: TQFN-32
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT

In coax mode, OUT+ and OUT- are active. This enables
use as a 1:2 splitter
OUT+ to IN+ of the deserializer. Connect OUT- to IN- of
the second deserializer. Control-channel data is broad-
cast from the serializer to both deserializers and their
attached peripherals. Assign a unique device address to
send control data to one deserializer. Leave all unused
IN_ pins unconnected, or connect them to ground
through 50I and a capacitor for increased power-supply
rejection. If OUT- is not used, connect OUT- to AVDD
through a 50I resistor
at the serializer, and at each deserializer, only one FC
can communicate at a time. Disable one splitter control-
channel link to prevent contention. Use the DIS_REV_P or
DIS_REV_N register bits to disable a control-channel link.
Figure 31. 2:1 Coax-Mode Splitter Connection Diagram
Table 9. Configuration Input Map
Maxim Integrated
CONF1
High
High
High
Low
Low
Low
Mid
Mid
Mid
MAX9271
OUT+
OUT-
CONF0
High
High
High
Low
Low
Low
Mid
Mid
Mid
(Figure
(Figure
31). In coax mode, connect
(OUT+/OUT- OUTPUT TYPE)
32). When there are FCs
Coax-Mode Splitter
16-Bit GMSL Serializer with Coax or
Do not use
IN+
IN-
IN+
IN-
1 (coax)
1 (coax)
1 (coax)
1 (coax)
0 (STP)
0 (STP)
0 (STP)
0 (STP)
DESERIALIZER
DESERIALIZER
CXTP
GMSL
GMSL
CONF1 and CONF0 determine the power-up values
of the serial output type, the input data latch, and the
control-channel interface type
can be changed after power-up by writing to the appro-
priate register bits.
The serializer includes a sleep mode to reduce power
consumption. The device enters or exits sleep mode by
a command from a local FC or a remote FC using the
control channel. Set the SLEEP bit to 1 to initiate sleep
mode. The serializer sleeps immediately after setting
its SLEEP = 1. The OUT+ and OUT- serial outputs each
have a wake-up receiver to accept wake-up commands
from the attached deserializers. On power-up, the OUT+
Figure 32. Coax-Mode Connection Diagram
(PCLKIN LATCH EDGE)
Do not use
MAX9271
1 (falling)
1 (falling)
1 (falling)
1 (falling)
0 (rising)
0 (rising)
0 (rising)
0 (rising)
Configuration Inputs (CONF1, CONF0)
ES
OUT+
OUT-
STP Cable Drive
AVDD
(CONTROL-CHANNEL TYPE)
50I
(Table
0 (UART-to-I
0 (UART-to-I
0 (UART-to-I
0 (UART-to-I
MAX9271
1 (I
1 (I
1 (I
1 (I
Do not use
I2CSEL
9). These functions
2
2
2
2
C-to-I
C-to-I
C-to-I
C-to-I
IN+
IN-
DESERIALIZER
2
2
2
2
Sleep Mode
C/UART)
C/UART)
C/UART)
C/UART)
2
2
2
2
GMSL
C)
C)
C)
C)
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