MAX9271GTJ+T Maxim Integrated, MAX9271GTJ+T Datasheet - Page 35

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MAX9271GTJ+T

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

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
wake-up receiver is enabled and the OUT- wake-up
receiver is disabled. Disable the wake-up receivers
(through ENWAKEP or ENWAKEN) if the devices are
disconnected or wake-up is not used in order to reduce
sleep mode current. If both wake-up receivers are disa-
bled, the device can only be woken up from the local
control channel. To wake up the device, send an arbitrary
control-channel command to the serializer. Wait 5ms for
the chip to power up and then write 0 to the SLEEP reg-
ister bit to make the wake-up permanent.
The serializer has a power-down mode that further
reduces power consumption compared to sleep mode.
Set PWDN low to enter power-down mode. In power-
down mode, the serial outputs are in high impedance.
Entering power-down resets the device’s registers.
Upon exiting power-down, the state of the GPIO1/BWS,
MS/HVEN, LCCEN, CONF0, CONF1, RX/SDA/EDC, and
TX/SCL/DBL pins are latched.
Table 10. Startup Procedure for Video-Display Applications
Maxim Integrated
NO.
1
2
3
4
5
6
7
FC connected to serializer.
Powers up.
Enables configuration link by
setting CLINKEN = 1 (if not enabled
automatically) and gets an acknowledge.
Waits for link to be established (~3ms).
Writes one link configuration bit (DRS,
BWS, or EDC) in the deserializer and
gets an acknowledge.
Writes corresponding serializer
link configuration bit and gets an
acknowledge.
Waits for link to be established (~3ms)
and then repeats steps 3 through 4 until
all serial link bits are configured.
Writes remaining configuration bits in
the serializer/deserializer and gets an
acknowledge.
Enables video link by setting SEREN = 1
and gets an acknowledge. Waits for link
to be established (~3ms).
µC
Power-Down Mode
16-Bit GMSL Serializer with Coax or
Sets all configuration inputs. If any
configuration inputs are available
on one end of the link but not on
the other, always connects that
configuration input low.
Powers up and loads default settings.
Establishes configuration link.
Configuration changed from default
settings.
Configuration changed from default
settings.
Begins serializing data.
SERIALIZER
The control channel can operate in a low-speed mode
called configuration link in the absence of a clock input.
This allows a microprocessor to program configuration
registers before starting the video link. An internal oscil-
lator provides the clock for the configuration link. Set
CLINKEN = 1 on the serializer to enable the configuration
link. The configuration link is active until the video link is
enabled. The video link overrides the configuration link
and attempts to lock when SEREN = 1.
Table 10
applications.
image-sensing applications. The control channel is avail-
able after the video link or the configuration link is estab-
lished. If the deserializer powers up after the serializer,
the control channel becomes unavailable until 2ms after
power-up.
lists the startup procedure for video-display
Table 11
STP Cable Drive
Link Startup Procedure
Sets all configuration inputs. If any
configuration inputs are available
on one end of the link but not on
the other, always connects that
configuration input low.
Powers up and loads default settings.
Locks to configuration link signal.
Configuration changed from default
settings (loss-of-lock occurs if BWS or
EDC changes).
Relocks to configuration link signal.
Configuration changed from default
settings.
Locks to serial link signal and begins
deserializing data.
lists the startup procedure for
DESERIALIZER
Configuration Link
MAX9271
35

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