LMH0041SQ/NOPB National Semiconductor, LMH0041SQ/NOPB Datasheet - Page 20

• Manufacturer Part Number: LMH0041SQ/NOPB
• Description: IC DESERIALIZER SDI LVDS 48-LLP
• Manufacturer: National Semiconductor
• Series: LMH®r

Specifications of LMH0041SQ/NOPB

• Function: Deserializer
• Data Rate: 3Gbps
• Input Type: Serial
• Output Type: LVDS
• Voltage - Supply: 2.5V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LLP
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Package Type: LLP EP
• Rad Hardened: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Outputs: -
• Number Of Inputs: -
• Lead Free Status / Rohs Status: Compliant
• Other names: LMH0041SQTR

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04
05
06
07–0C Reserved
0D
0E
0F–1C Reserved
1D
1E-1F
GPIO_2
Configuration
GP Input
GP Output
DVB_ASI Idle_A When in DVB_ASI mode, idle characters are inserted into the datastream when there is no valid data
DVB_ASI Idle_B DVB_ASI idle character MSBs
Variant
Reserved
Bits
This register configures GPIO_2. Note, if this pin is to be used as an input, then the output must be
TRI-STATE (bit[0]=’0’) and if used as an output, then the input buffer must be disabled (bit[1]=’0’).
7:4
3:2
1
0
If any of the GPIO pins are configured as inputs, then reading from this register provides the values
on those input pins
7:3
2
1
0
If the GPIO ins are configured as General Purpose output pins, then writing to this register has the
effect of transferring the bits in this register to the output buffers of the GPIO pins.
7:3
2
1
0
to transmit. This character is recognized by the receiver. The default character is K28.5 but if desired
that can be redefined via this register pair
7:0
7:2
1:0
Reading from this register will return an 8 bit value which indicates which variant of the DES is being
addressed
7:6
5
4:3
2
1:0
Field
GPIO_0_mode
[3:0]
GPIO_0_ren
[1:0]
GPIO_0_sleep
z
GPout0 enable
Reserved
Reserved
Reserved
Reserved
Loop through
enable
mode
Reserved
Variant
R/W
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r
r
r
r
r
r
r
20
pin value This bit returns the state of the loop-through enable,
pin value Returns a two bit pattern which indicates the state that
Default
0000'b
01'b
0'b
1'b
83
2
Description
0000: GPout [2]register
0001:Always ON clock
0010: LVDS TX CLK
0011:CDR_CLK
all others: reserved
00: pullup and pulldown disabled
01: pulldown enabled
10: pullup enabled
11: Reserved
0: input buffer disabled
1: input buffer enabled
0: output TRI-STATE
1: output enabled
Input data on GPIO 2
Input data on GPIO 1
Input data on GPIO 0
Output data on GPIO 2
Output data on GPIO 1
Output data on GPIO 0
Data [7:0]
Data[9:8]
and defaults to the same as the state of the
Loopthru_EN pin
the device is in
00,01,10: Standard Video Mode
11: DVB_ASI Mode
returns the part type:
00: LMH0341
01: LMH0041/LMH0051
10:LMH0071
11:Reserved