LM2512ASM/NOPB [TI]
具有可选抖动和查找表的 Mobile Pixel Link (MPL-1) 24 位 RGB 显示接口串行器 | NZK | 49 | -30 to 85;
| 型号： | LM2512ASM/NOPB |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 具有可选抖动和查找表的 Mobile Pixel Link (MPL-1) 24 位 RGB 显示接口串行器 | NZK | 49 | -30 to 85 驱动 接口集成电路 驱动程序和接口 |
| 文件： | 总28页 (文件大小：1092K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LM2512A
www.ti.com
SNLS269B –AUGUST 2007–REVISED MAY 2013
LM2512A Mobile Pixel Link (MPL-1), 24-Bit RGB Display Interface Serializer with Optional
Dithering and Look Up Table
Check for Samples: LM2512A
1
FEATURES
DESCRIPTION
The LM2512A is a MPL Serializer (SER) that
performs a 24-bit to 18-bit Dither operation and
serialization of the video signals to Mobile Pixel link
(MPL) levels on only 3 or 4 active signals. An optional
Look Up Table (Three X 256 X 8 bit RAM) is also
provided for independent color correction. 18-bit
Bufferless or partial buffer displays from QVGA (320
x 240) up to VGA (640 x 480) pixels can utilize a 24-
bit video source.
2
•
24-bit RGB Interface Support up to 640 x 480
VGA Format
•
•
Optional 24 to 18-bit Dithering
Optional Look Up Table for Independent Color
Correction
•
•
MPL-1 Physical Layer
SPI Interface for Look Up Table Control and
Loading
The interconnect is reduced from 28 signals to only 3
or 4 active signals with the LM2512A and companion
deserializer easing flex interconnect design, size
constraints and cost.
•
•
•
•
Low Power Consumption & Powerdown State
Level Translation Between Host and Display
Optional Auto Power Down on STOP PCLK
Frame Sequence Bits Auto Resync upon Data
or Clock Error
The LM2512A SER resides by the application,
graphics or baseband processor and translates the
wide parallel video bus from LVCMOS levels to serial
Mobile Pixel Link levels for transmission over a flex
cable (or coax) and PCB traces to the DES located
near or in the display module.
•
•
1.6V to 2.0V Core / Analog Supply Voltage
1.6V to 3.0V I/O Supply Voltage Range
SYSTEM BENEFITS
When in Power_Down, the SER is put to sleep and
draws less than 10μA. The link can also be powered
down by stopping the PCLK (DES dependant) or by
the PD* input pins.
•
•
•
•
•
Dithered Data Reduction
Independent RGB Color Correction
24-bit Color Input
The LM2512A provides enhanced AC performance
over the LM2512. It implements the physical layer of
the MPL-1 and uses a single-ended current-mode
transmission.
Small Interface, Low Power and Low EMI
Intrinsic Level Translation
Typical 3 MD Lane Application Diagram - Bridge Chip
LM2512A Serializer
MPL-1 Deserializer
MD0
MD1
MC
D
Apps
Processor
---
Graphics
Processor
---
R[7:0]
G[7:0]
B[7:0]
VS
HS
DE
R[5:0]
G[5:0]
B[5:0]
VS
HS
DE
i
t
h
e
r
P
2
S
RGB Display
VGA
PCLK
PCLK
Baseband
Processor
at 18-Bit Color Depth
MD2
S
P
I
Three
256 X
8
SPI_CSX
SPI_SCL
SPI_SDA
PD*
LUT
PLL
PD*
PD
[Supply, Configuration pins,
and bypass caps. and grounding not shown]
OUT*
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2013, Texas Instruments Incorporated
LM2512A
SNLS269B –AUGUST 2007–REVISED MAY 2013
www.ti.com
Pin Descriptions
No.
of Pins
Description
RGB Serializer
Pin Name
I/O, Type(1)
MPL SERIAL BUS PINS
MD[2:0]
MC
3
1
O, MPL
O, MPL
MPL Data Line Driver
MPL Clock Line Driver
SPI INTERFACE and CONFIGURATION PINS
SPI_CSX
1
1
1
I,
SPI_Chip Select Input
SPI port is enabled when: SPI_CSX is Low, PD* is High, and PCLK is static.
LVCMOS
SPI_SCL
I,
SPI_Clock Input
LVCMOS
SPI_SDA/HS
IO,
Multi-function Pin:
LVCMOS
If SPI_CSX is Low, this is the SPI_SDA IO signal. Default is Input. Pin will be an
output for a SPI Read transaction.
See HS description below also.
PD*
1
I,
Power Down Mode Input
LVCMOS
SER is in sleep mode when PD* = Low, SER is enabled when PD* = High
In PD*=L - Sleep mode: SPI interface is OFF, Register settings are RESET, and
LUT data is retained.
RES1
TM
1
1
I,
Reserved 1 - Tie High (VDDIO) only available on NZK0049A package
LVCMOS
I,
Test Mode
LVCMOS
L = Normal Mode, tie to GND
H = Test Mode (Reserved)
NC
1
NA
Not Connected - Leave Open; only on NZK0049A package
VIDEO INTERFACE PINS
PCLK
1
I,
Pixel Clock Input
LVCMOS
Video Signals are latched on the RISING edge.
R[7:0]
G[7:0]
B[7:0]
24
I,
RGB Data Bus Inputs – Bit 7 is the MSB.
LVCMOS
VS
SPI_SDA/HS
DE
1
1
1
I,
Vertical Sync. Input
LVCMOS
This signal is used as a frame start for the Dither block and is required. The
VS signal is serialized unmodified.
IO,
LVCMOS
Multi-function Pin:
Horizontal Sync. Input (when SPI_CSX = High)
See SPI_SDA description above also.
I,
Data Enable Input
LVCMOS
POWER/GROUND PINS
VDDA
1
1
3
Power
Power
Power
Power Supply Pin for the PLL (SER) and MPL Interface.
1.6V to 2.0V
VDD
Power Supply Pin for the digital core.
1.6V to 2.0V
VDDIO
Power Supply Pin for the parallel interface I/Os.
1.6V to 3.0V
VSSA
VSS
1
1
4
Ground
Ground
Ground
Ground Pin for PLL (SER) and MPL interface
Ground Pin for digital core. For SN40A package, this is the large center pad.
VSSIO
Ground Pin for the parallel interface I/Os. For NJM0040A package, this is the large
center pad.
(1) Note: I = Input, O = Output, IO = Input/Output. Do not float input pins.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
2
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Product Folder Links: LM2512A
LM2512A
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SNLS269B –AUGUST 2007–REVISED MAY 2013
(1)(2)
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VDDA
Supply Voltage (VDD
Supply Voltage (VDDIO
)
−0.3V to +2.2V
−0.3V to +2.2V
−0.3V to +3.3V
−0.3V to (VDDIO +0.3V)
−0.3V to VDDA
+150°C
)
)
LVCMOS Input/Output Voltage
MPL Output Voltage
Junction Temperature
Storage Temperature
ESD Ratings:
−65°C to +150°C
≥±2 kV
HBM - JESD22−A114C std.
MM - JESD22−A115−A std.
CDM - JESD22−C101−C std.
NZK0049A Package
≥±200V
≥±500V
Maximum Package Power Dissipation Capacity
at 25°C
2.5 W
NJM0040A Package
3.2 W
Derate NZK0049A Package above 25°C
Derate NJM0040A Package above 25°C
25 mW/°C
26 mW/°C
(1) “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be specified. They are not meant to imply
that the device should be operated at these limits. The tables of “Electrical Characteristics” specify conditions for device operation.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
RECOMMENDED OPERATING CONDITIONS
Min
1.6
1.6
7.5
5
Typ
Max
2.0
3.0
22.5
15
Units
V
Supply Voltage
VDDA to VSSA and VDD to VSS
VDDIO to VSSIO
1.8
V
PClock Frequency (4X)
PClock Frequency (6X)
MC Frequency
MHz
MHz
MHz
°C
30
90
Ambient Temperature
−30
25
85
ELECTRICAL CHARACTERISTICS
Over recommended operating supply and temperature ranges unless otherwise specified.(1)(2)
Symbol
MPL
Parameter
Conditions
Min
3.947IB
0.711 IB
−2
Typ
Max
Units
IOLL
IOMS
IOLH
IB
Logic Low Current (5X IB)
Mid Scale Current
5.0 IB
3.0 IB
1.0 IB
190
6.842IB
1.368 IB
+2
µA
µA
µA
µA
µA
Logic High Current (1X IB)
Current Bias
IOFF
MPL Leakage Current
VMPL = 0V
LVCMOS (1.6V to 3.0V Operation)
VIH
VIL
Input Voltage High Level
Input Voltage Low Level
Input Hysteresis
0.7 VDDIO
GND
VDDIO
V
V
0.3 VDDIO
VHY
IIN
100
0
mV
µA
V
Input Current
−1
+1
VOH
VOL
Output Voltage High Level
Output Voltage Low Level
SPI_SDA
IOH = −1 mA
IOL = 1 mA
0.7 VDDIO
VSSIO
VDDIO
0.2 VDDIO
V
SUPPLY CURRENT
(1) Typical values are given for VDDIO = 1.8V and VDD = VDDA = 1.8V and TA = 25°C.
(2) Current into a device pin is defined as positive. Current out of device pins is defined as negative. Voltages are referenced to Ground
unless otherwise specified.
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ELECTRICAL CHARACTERISTICS (continued)
Over recommended operating supply and temperature ranges unless otherwise specified.(1)(2)
Symbol
IDD
Parameter
Conditions
Min
Typ
Max
Units
Total Supply Current -
Enabled(3)
MC = 80 MHz,
VDDIO
0.02
0.07
mA
Checkerboard Pattern
VDD/VDDA
3 MD Lane(4)
5.4
0.01
4.1
9.0
mA
mA
mA
mA
MC = 60 MHz,
Checkerboard Pattern
2 MD Lane
VDDIO
VDD/VDDA
Supply Current -Enabled
MC = 60 MHz,
Pseudo-Random
Pattern
VDDIO
0.02
VDD/VDDA
3.7
mA
2 MD Lane
IDDZ
Supply Current—Disable
Power Down Modes
Ta = 25°C
PD* = L
VDDIO
<1
<1
<1
<1
2
5
2
5
µA
µA
µA
µA
VDD/VDDA
VDDIO
Stop Clock
VDD/VDDA
(3) For IDD tests - input signal conditions are: (swing, edge, freq, DE = H, VS = L, HS = L, RGB Checkerboard Pattern: AAAAAA-555555)
(4) Total Supply Current Conditions: checkerboard data pattern, 20MHz PCLK (3MDs), TYP VDDIO = VDDA = VDD = 1.8V, MAX VDDIO =
3.0V, MAX VDDA = VDD = 2.0V.
SWITCHING CHARACTERISTICS
Over recommended operating supply and temperature ranges unless otherwise specified.(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
PARALLEL BUS TIMING
tSET
Set Up Time
Hold Time
SER Inputs Figure 1
5
5
ns
ns
tHOLD
SERIAL BUS TIMING
(2) (3)
tDVBC
Serial Data Valid before Clock SER Data Pulse Width Figure 2,
Edge
0.38
0.38
UI
UI
tDVAC
Serial Data Valid after Clock
Edge
POWER UP TIMING
t0
Bias Up Time
See Figure 9
PCLK
cycles
200
200
20
t1
MC Pulse Width LOW
MC Pulse Width HIGH
MC Pulse LOW
PCLK
cycles
t2
PCLK
cycles
t3
PCLK
cycles
8
t4
MC Pulse LOW - SER PLL
Lock Counter
PCLK
cycles
600
tPZXclk
Enable Time - Clock Start
PCLK to MCOUT Figure 4
See(4)
MPL POWER OFF TIMING
tPAZ
Disable Time to Power Down
Disable Time - Clock Stop
See(5)
15
ms
tPXZclk
PCLK to MCOUT Figure 3
PCLK
cycles
2
SPI INTERFACE
(1) Typical values are given for VDDIO = 1.8V and VDD = VDDA = 1.8V and TA = 25°C.
(2) 1 UI is the serial data MD pulse width = 1 / 8xPCLK (3 MD lanes), 1 UI is the serial data MD pulse width = 1 / 12xPCLK (2 MD lanes)
(3) This is a functional parameter and is specified by design or characterization.
(4) Enable Time is a complete MPL start up comprised of t0 + t1 + t2 + t3 + t4.
(5) Specified functionally by the IDDZ parameter. See also Figure 10.
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SNLS269B –AUGUST 2007–REVISED MAY 2013
SWITCHING CHARACTERISTICS (continued)
Over recommended operating supply and temperature ranges unless otherwise specified.(1)
Symbol
tACC
tOHR
Parameter
Conditions
Min
Typ
Max
Units
SPI Data Active (SDA_device) See Figure 16
0
50
ns
SPI Data Tri-State
(SDA_device)
0
50
ns
RECOMMENDED INPUT TIMING REQUIREMENTS (PCLK AND SPI)
Over recommended operating supply and temperature ranges unless otherwise specified.
(1)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
PIXEL CLOCK (PCLK)
fPCLK
Pixel Clock Frequency
3 MD Lane, (4X)
7.5
5
22.5
15
MHz
MHz
%
2 MD Lane, (6X)
PCLKDC
tT
Pixel Clock Duty Cycle
Transition Time
30
2
50
>2
70
See(2)(3)
See(4) (3)
ns
tSTOPpclk
Clock Stop Gap
PCLK
cycles
4
2
SPI INTERFACE
fSCLw
fSCLr
ts0
SCL Frequency
WRITE
READ
10
MHz
MHz
ns
6.67
CSX Set Time
SI Set Time
60
30
30
35
60
35
60
ts1
See Figure 15
ns
th1
SI Hold Time
ns
tw1h
SCL Pulse Width High
WRITE
READ
WRITE
READ
ns
ns
See Figure 15,
Figure 16
tw1l
SCL Pulse Width Low
ns
ns
tr
SCL Rise Time
SCL Fall Time
SI Hold Time
5
5
ns
tf
ns
t0H
th0
tw2
See Figure 15
30
65
ns
CSX Hold Time
CSX OFF Time
ns
100
ns
(1) Typical values are given for VDDIO = 1.8V and VDD = VDDA = 1.8V and TA = 25°C.
(2) Maximum transition time is a function of clock rate and should be less than 30% of the clock period to preserve signal quality.
(3) This is a functional parameter and is specified by design or characterization.
(4) This is the minimum time that the PCLK needs to be held off for in order for the device to be reset. Once PCLK is reapplied, a PLL Lock
is required and start up sequence before video data is serialized.
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TIMING DIAGRAMS
VS
HS
PCLK
tSET
tHOLD
Data,
DE
Figure 1. Input Timing for RGB Interface
MC
MDn
tDVBC tDVAC
tDVBC
tDVAC
Figure 2. Serial Data Valid
PCLKser
Active MC
MC
OUT
MC OFF
t
PXZclk
Figure 3. Stop PClock Power Down
PCLKser
MC
OUT
active MC
MC OFF
t
PZXclk
Figure 4. Stop PClock Power Up
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SNLS269B –AUGUST 2007–REVISED MAY 2013
CSX
(host)
SCL
(host)
t
0HR
SDA
(host)
A0
t
SDA
ACC
D6
SDA
(device)
D7
D5
D4
D3
D2
D1
D0
Figure 5. SPI Interface
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SNLS269B –AUGUST 2007–REVISED MAY 2013
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FUNCTIONAL DESCRIPTION
The LM2512A is a Mobile Pixel Link (MPL) Serializer that serializes a 24-bit RGB plus three control signals (VS,
HS, and DE) to two or three MPL MD lines plus the serial clock MC. Two options are provided: 24-bit RGB data
dithering to 18 bits, and an optional Look Up Table. The three 256 X 8-bit RAMs may also be used and is
controlled via a 3-wire SPI interface. The LM2512A is compatible with certain discrete MPL Deserializers and
also Display Drivers with integrated MPL Deserializers (i.e. FPD95320).
LM2512A
R[7:0]
MD0
MD1
MC
MD0
MD1
MC
L
A
T
C
H
G[7:0]
B[7:0]
D
I
T
H
E
R
/
P
2
S
F
I
F
O
VS, HS, DE
PCLK
MD2
MD2
SPI_CSX
S
P
I
SPI_SDA
SPI_SCL
PD*
Three X 256 X 8
Look Up Table
I
/
F
PLL
TM
PCLK
S/D*
Figure 6. General LM2512A Block Diagram
BUS OVERVIEW
The LM2512A is a multi-lane MPL Serializer that supports a 24-bit RGB source interface. The MPL physical layer
is purpose-built for an extremely low power and low EMI data transmission while requiring the fewest number of
signal lines. No external line components are required, as termination is provided internal to the MPL receiver. A
maximum raw throughput of 480 Mbps (3-lane raw) is possible with this chipset. The MPL interface is designed
for use with common 50Ω to 100Ω lines using standard materials and connectors. Lines may be microstrip or
stripline construction. Total length of the interconnect is expected to be less than 20cm.
LM2512A
MPL-1 DES
MD0
MD1
MC
MD2
SER
DES
GND
Figure 7. Three MD Lane MPL Interface
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SERIAL BUS TIMING
Data valid is relative to both edges of a RGB transaction as shown in Figure 8. Data valid is specified as: Data
Valid before Clock, Data Valid after Clock, and Skew between data lines should be less than 500ps.
MC
MD0
MDn
Figure 8. Dual Link Timing
SERIAL BUS PHASES
There are three bus phases on the MPL serial bus. These are determined by the state of the MC and MD lines.
The MPL bus phases are shown in Table 1.
The LM2512A supports MPL Level 0 Enhanced Protocol with a Class 0 PHY.
Table 1. Link Phases(1)
Name
MC State
MDn State
Phase Description
Pre-Phase
A, or LU
O
Post-Phase
OFF (O)
0
0LHL
A
0
000L
X
Link is Off
LU
A or O
O
LINK-UP (LU)
Active (A)
Start Up Pulse
Streaming Data
LU
(1) Notes on MC/MD Line State:
0 = no current (off)
L = Logic Low—The higher level of current on the MC and MD lines
H = Logic High—The lower level of current on the MC and MD lines
X = Low or High
A = Active Clock
SERIAL BUS START UP TIMING
In the Serial Bus OFF phase, SER line drivers for MDs and MC are turned off such that zero current flows over
the MPL lines. On the SER side, when the PD* input pin is de-asserted (driven High), or with PD* = High and the
PCLK is turned on, the SER will power up its bias block during t0.
The SER will next drive the MC line to the logic Low (5I current) state for 200 PCLK cycles (t1). The DES devices
detects the current flowing in the MC line, and powers up its analog circuit blocks (or alternately is controlled by
its PD* input pin - device specific).
The SER then drives the MC line to a logic High (1I current) for 20 PCLK cycles (t2). On the MC low-to-high
transition, the DES samples the current and optimizes it current sources to match that of the drivers.
The MC is now driven to a logic Low (5I current) for 8 PCLK cycles (t3).
Next the SER PLL is locked to the PCLK. A hold off counter of 600 PCLK cycles is used to hold off until the PLL
has locked and is stable (t4). At this point, streaming RGB information is now sent across the MPL link.
Link-Up is shown in Figure 9. The MC and MDn signals are current waveforms. Data at the DES output will
appear a latency delay later.
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Link
Off
Bus
Phase
Link-Up
active
PD*
(SER)
PD*
(DES)
PCLK
(SER)
PCLK remains ON
t0
t1
t2
t3
t4
MC-out (SER)/
MC-in (DES)
MDn-out
(SER)/MDn-in
(DES)
Figure 9. MPL Power Up Timing
OFF PHASE
In the OFF phase, MPL transmitters are turned off with zero current flowing on the MC and MDn lines. Figure 10
shows the transition of the MPL bus into the OFF phase. If an MPL line is driven to a logical Low (high current)
when the OFF phase is entered it may temporarily pass through as a logical High (low current) before reaching
the zero line current state. The link may be powered down by asserting both the SER’s and DES’s PD* input pins
(Low) or by stopping the PCLK (DES dependant). This causes the devices to immediately put the link to the OFF
Phase and internally enter a low power state.
Bus
Phase
Active
Power-Off
O = (0*I)
H = ( 1*I)
MC
L = (5*I)
1
O = (0*I)
H = ( 1*I)
MDn
L = (5*I)
Current Waveforms
Figure 10. Bus Power Down Timing
RGB VIDEO INTERFACE
The LM2512A is transparent to data format and control signal timing. Each PCLK, RGB inputs, HS, VS and DE
are sampled on the rising edge of the PCLK. A PCLK by PCLK representation of these signals is duplicated on
the opposite device after being transferred across the MPL Level-0 interface.
The LM2512A can accommodate a wide range of display formats. QVGA to VGA can be supported within the
2MHz to 20 MHz PCLK input range.
The 24-bit RGB (R0-7, G0-7, B0-7) color information is dithered to 18 bits then serialized, followed by the control
bits VS (VSYNC), HS (HSYNC), DE (Data Enable) and PE (Odd Parity) and Frame Sequence (F[1:0]) bits.
The default configuration is for 2 MD lanes plus the MC. Via the SPI Interface, the Serializer can be configured
for a 3 MD Lane configuration.
When transporting color depth below 24-bit, the 24-bit protocol can be used by offsetting the color data. The
LSBs of the RGB are not used and data is offset toward the upper (MSB) end of the bit fields. Unused inputs
should be tied off.
At a maximum PCLK of 20 MHz (3MDs), a 80MHz MC clock is generated. The data lane rate uses both clock
edges, thus 160Mbps (raw) are sent per MD lane.
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MC
MD0
R0
R2
R4
R1
R3
R5
G0
G2
G4
G1
G3
G5
B0
B2
B4
B1
B3
B5
VS
DE
F0
HS
PE
F1
R0
R2
R4
MD1
MD2
Figure 11. 24-bit to 18-bit Dithered, 3 MD Lane, RGB Transaction
MC
MD1
MD2
R0
R2
R1
R3
R4
G0
R5
G1
G2
G4
G3
G5
B0
B2
B1
B3
B4
VS
B5
HS
DE
F0
PE
F1
R0
R2
Figure 12. 24-bit to 18-bit Dithered, 2 MD Lane (Default), RGB Transaction (NOTE MD1 and MD2)
Serial Payload Parity Bit
Odd Parity is calculated on the RGB bits, control (VS, HS, and DE) bits and F0, F1 bits and then sent from the
SER to the DES via the serial PE bit. This is included for compatibility with certain MPL Deserializers.
Synchronization Detect and Recovery
If a data error or clock slip error occurs over the MPL link, the RGB MPL Deserializer can detect this condition
and recover from it. The method chosen is a data transparent method, and has very little overhead because it
does not use a data expansion coding method. For the Dithered 18-bit color transaction, it uses two bits that are
already required in the 4 MC cycle transaction. Total overhead for each pixel is 3/24 or 12.5%.
The LM2512A MPL RGB Serializer simply increments the two bit field F[1:0] on every pixel (MPL frame)
transmitted. Therefore every four MPL frames, the pattern will repeat. It is very unlikely that this pattern would be
found within the payload data, and if it were found, the probability that it would repeat for many frames becomes
infinitely small. This code is used by the MPL Deserializer to detect any frame alignment problems and quickly
recover.
The RGB MPL Deserializer, upon a normal power up sequence, starts in the proper synchronization. If
synchronization is lost for any reason, it searches for the incrementing pattern. Once found, it resynchronizes the
output pixel data and timing signals. See MPL DES Datasheet for details on how the specific DES handles the
Frame Sequence.
OPTIONAL DITHERING FEATURE
The LM2512A is a 2 or 3-Lane MPL Serializer, 24-bit RGB input data (8-bits/color channel) is internally dithered
to 18-bits (6-bits/color channel) using a high-quality stochastic dithering process. This process has a "blue noise"
characteristic that minimizes the visibility of the dither patterns. The resulting data stream of 18-bit data is then
serialized and transmitted via MPL.
The Dither circuitry requires the VS control signal for proper operation. This signal is used to generate a
internal signal that marks the start of the (video) frame. The serializer samples and sends the VS information
unmodified.
Dithering parameters are controled by two registers. When the dithering is bypassed, only RGB[7:2] is serialized
and transmitted for 18-bit input RGB [5:0] (MSB aligned). RGB[1:0] should not be connected and the unsed input
should be tied low; do not leave input open.
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OPTIONAL LOOK UP TABLE AND SPI INTERFACE
Three 256 X 8-bit SRAMs provide a Look Up Table for independent color correction. The LUT is disabled by
default and also after a device PD* cycle. The PD* cycle can be entered via the PD* input pin directly, or by
stopping the PCLK. Before using the LUT, the SRAM must be loaded with its contents. If power is cycled to the
device, the LUT must be loaded again.
To enable the LUT:
1. Select/Unlock the LM2512A SPI Interface - Write FF’h to REG22 (16’h)
2. Write the LUT contents to the SRAM using Writes or Page Writes
3. Enable the LUT - Write a 01’h to REG0 (00’h)
4. De-Select/Lock the LM2512A SPI interface -Write 00’h to REG22 (16’h)
When waking up the LM2512A from the power down mode (PD*=L), the LUT needs to be enabled if it is desired.
Contents to the SRAM are still held and valid.
1. Select/Unlock the LM2512A SPI Interface - Write FF’h to REG22 (16’h)
2. Enable the LUT - Write a 01’h to REG0 (00’h)
3. Optional -select Lane Scale if not using default
4. De-Select/Lock the LM2512A SPI interface -Write a 00’h to REG22 (16’h)
If power is cycled to the device, the LUT SRAMs must be loaded again.
SPI Interface
The Serial Peripheral Interface (SPI) allows control over various aspects of the LM2512A, the Look Up Table
operation, and access to the three 256 x 8-RAM blocks. There are 9 defined registers in the device. Three SPI
transactions are supported, which are: 16-bit WRITE, PAGE WRITE, and a 16-bit READ. The SPI interface is
disabled when the device is in the sleep mode (via PCLK Stop or by PD* = L). The SPI interface may be used
when PD* = H.
16-bit WRITE
The 16-bit WRITE is shown in Figure 15. The SDA payload consists of a "0" (Write Command), seven address
bits and eight data bits. The CSX signal is driven Low, and 16-bits of SDA (data) are sent to the device. Data is
latched on the rising edge of the SCL. After each 16-bit WRITE, CSX must return HIGH.
Table 2. 16-bit WRITE – SPI
Bit
B15
0
B14
A6
B13
A5
B12
A4
B11
A3
B10
A2
B9
A1
B8
A0
B7
D7
B6
D6
B5
D5
B4
D4
B3
D3
B2
D2
B1
D1
B0
D0
SDA
16-bit READ
The 16-bit READ is shown in Figure 16. The SDA payload consists of a "1" (Read Command), seven address
bits and eight data bits which are driven from the device. The CSX signal is driven Low, and the host drives the
first 8 bits of the SDA ("1" and seven address bits), the device then drives the respective 8 bits of the data on the
SDA signal.
Table 3. 16-bit READ – SPI
Bit
B15
1
B14
A6
B13
A5
B12
A4
B11
A3
B10
A2
B9
A1
B8
A0
B7
B6
B5
B4
B3
B2
B1
B0
SDA
D7
D6
D5
D4
D3
D2
D1
D0
PAGE WRITE
The PAGE WRITE is shown in Figure 17. The SDA payload consists of a "0" (Write Command), seven address
bits of the start address and then the consecutive data bytes. 256 bytes maximum can be sent. The CSX signal
is driven Low, and the host drives the SDA signal with a "0" (Write Command), the seven start address bits and
the variable length data bytes. The Page Write is denoted by the CSX signal staying low while the data bytes are
streamed. Data is latched on the rising edge of the SCL.
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Table 4. PAGE WRITE
Bit
B15
B14
A6
B13
A5
B12
A4
B11
A3
B10
A2
B9
A1
B8
A0
B7
D7
B6
D6
B5
D5
B4
D4
B3
D3
B2
D2
B1
D1
B0
D0
SDA
0
(start address)
D6 D5
(Data Byte 0)
D7 D6
D7
D4
D3
D2
D1
D0
D5
D4
D3
D2
D1
D0
(Data Byte 1)
(Data Byte n, 256 max.)
There are three SPI Interface signals: CSX - SPI Chip Select, SCL - SPI Clock, and SDA - SPI Data. CSX and
SCL are inputs on the LM2512A. SDA is a bi-directional Data line and is an input for a WRITE and an output for
the READ_DATA portion of a READ operation. READs are optional and are not required. Due to the
Select/Unlock – De-Select/Lock feature of the device the SPI interface may be shared with the display driver.
Several connection configurations are possible. A couple examples are shown in Figure 13 and Figure 14.
LM2512A
CSX
SCL
SDA
CSX
SCL
SDI
C
O
N
N
DISPLAY DRIVER
FPD95320
HOST
SDO
Figure 13. LM2512A WRITE & READ to 3-signal SPI HOST
LM2512A
CSX
SCL
SDI
CSX
SCL
SDO
SDI
C
O
N
N
DISPLAY DRIVER
FPD95320
HOST
SDO
Figure 14. LM2512A WRITE only to 4-signal SPI HOST
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Table 5. LM2512A SPI Registers
Name
Addres Type(1) Description
Default
s
Command
0x00
R/W
Bit 0 = LUT Enable
00’h
0’b = LUT Disabled, 1’b = LUT Enabled
Bit 4 = Special Register Access
0’b = SRA Locked, 1’b = SRA Unlocked
For access to Registers 0x01, 0x08, 0x09, 0x0A, the Special Register Access bit
must be unlocked. Must write all 8 bits.
Configuration(2)
0x01
R/W
Bit 4 = MPL Edge Rate
00’h
0’b = normal edge, 1’b = slow edge
All other bits reserved, must be written as 0s.
Red RAM Address
Red RAM Data
0x02
0x03
0x04
0x05
0x06
0x07
0x08
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Red Address
Red Data
00’h
XX’h
00’h
XX’h
00’h
XX’h
61’h
Green RAM Address
Green RAM Data
Blue RAM Address
Blue RAM Data
Green Address
Green Data
Blue Address
Blue Data
Dither Configuration1
Bit 0 - Dither Bypass
1’b = Bypass Dither, 0’b = Dither ON
Bit 1 - DE INV
(2)
1’b = Active Low DE, 0’b = Active High DE
Does not alter DE signal, dither block input only.
Bit 2 - VS INV
1’b = Active Low VS signal, 0’b = Active High VS signal.
Does not alter VS signal, dither block input only.
Bit 3 - Reserved
Bit 4 - Tempen0
1’b = Transposed Dither Pattern,
0’b = Even and odd frames use same dither pattern
Bit 5 - Tempen1
1’b = Temporal Dithering is Enabled, 0’b = Disabled
Bit 6 - Dith3 - Dither Amplitude
1’b = set to 3 bits, 0’b = set to 4 bits
Bit 7 - Reserved
Dither Configuration2
0x09
0x0A
R/W
W
Dither Parameter
Reserved, Default value recommended.
67’h
02’h
(2)
Lane Scale
Bit[2:0]
(2) (3)
000’b = Reserved
010’b = 2 MD Lanes (Default)
100’b = 3 MD Lanes
all others= Reserved
Reserved
0x0B-
0x15
na
R/W
na
Reserved
(4)
Device Select
(Unlock/Lock)
0x16
0xFF’h enables LM2512A SPI
All other values disables LM2512A SPI (0x00 to 0xFE)
00’h
Reserved
0x17-
0x7F
Reserved
(4)
(1) If a WRITE is done to a reserved bits, data should be all 0’s. If a READ is done to a reserved location, either 1’s or 0’s may be returned.
Mask reserved data bits.
(2) This register must be unlocked first through bit 4 of register 0.
(3) WRITE ONLY Register, read of this register is not supported.
(4) DO NOT write to Reserved Registers.
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SPI Timing
CSX
(host)
t
s0
t
t
t
t
f
w1H
w1L
r
th0
tw2
SCL
(host)
t
h1
t
s1
SDA
(host)
0
A6
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
Figure 15. 16-bit SPI WRITE
CSX
(host)
t
t
w2
h0
SCL
(host)
SDA
(host)
1
A6
A5
A4
A3
A2
A1
A0
t
ACC
t
0HR
SDA
(device)
D7
D6
D5
D4
D3
D2
D1
D0
Figure 16. 16-bit SPI READ
CSX
(host)
SCL
(host)
SDA
(host)
0
A6
A5
A0
D7
D1
D0
D7
D0
D7
D1
D0
Data Byte n
(256 maximum)
Data Byte 0
Data Byte 1
Figure 17. SPI PAGE WRITE
Power Up Sequence
The MPL Link must be powered up and enabled in a certain sequence for proper operation of the link and
devices. The following list provides the recommended sequence:
1. Apply Power (See Power Supply Section)
2. PD* Input should be held low until Power is stable and within specification and PCLK is driven to a static
level.
3. PD* is driven HIGH, SPI interface is now available.
4. To program the device via the SPI interface:
–
–
–
–
Select / Unlock the LM2512A, Write FF’h to REG 16’h
LUT registers are now accessible
If Lane Scale Register needs to be modified, this is accessed through bit 4 of the Command register.
A write to REG 16’h on any other value besides FF’h will de-select / lock the LM2512A’s SPI
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–
SPI Commands MUST be completed before the PCLK is active.
5. Condition the DES as required
6. Start PCLK, after the DES is calibrated and the SER PLL Locked, streaming data transmission will occur.
RGB888
MD0
MC
MD1
MC
FPD95320
LM2512A
VS
HS
MD1
MD2
DE
PCLK
PD*
HOST
CSX
SCL
SDO
SDI
SDI
SDO
Figure 18. Typical Application Connection Diagram
V
/V
DD DDA
V
DDIO
RST_N (PD*)
SPI
FPD95320
select, init_disp,
read_id,....
LM2512A
select,
configure
FPD95320
select,
sleep_out,....
MPL_PD_N
PCLK
PCLK is ON - static state, H or L
Start Up
Status
OFF
ON
Figure 19. Power Up Sequence
A typical connection diagram is shown in Figure 18. The LM2512A SPI is configured to support write only
transactions in this example. The FPD95320 can support both writes and reads on its SPI interface. Figure 19
shows a typical power up sequence using the shared SPI interface. Power is brought up first. The RST_N signal
is held low until power to the FPD95320 (not shown) and the LM2512A is stable and within specifications. Next
the RST_N signal is driven High, which allows access to the SPI interfaces. The PCLK should also be turned on
and held at a static level (High or Low). The FPD95320 is selected first via a write to register 16’h and the display
is initialized. Next a write of FF’h to register 16’h. This command will Lock the FPD95320 SPI interface and
Select / Unlock the LM2512A SPI interface. By default, the LM2512A powers up in 2 MD lanes with the Dither
and the LUT disabled. The Look-up Table - LUT is accessible by enabling bit 0 of the command register 00’h.
The Special Register Access - SRA are also accessible for lane scaling by enabling bit 4 of the command
register 00’h. To enable the LUT and unlock SRA, write of 11’h to register 00’h (see Table 5). To change to 3 MD
lanes, write of 04’h to register 0A’h. Next additional commands are sent to the FPD95320 by issuing a Unlock
command to the FPD95320 register 16’h which also de-selects / locks the LM2512A SPI. After the SPI
commands are completed, the MPL_PD_N signal is driven High to arm the Deserializer for the MPL start
sequence. The PCLK is started up, and the SER will calibrate the DES and lock to the incoming PCLK signal.
Once this is completed, video data transmission occurs and the link is ON.
Application Configurations
Many different application configurations are possible with the flexible LM2512A Serializer. These include:
•
•
•
LM2512A - 2 MD Lane to FPD95320 Display Driver
LM2512A - 2 MD Lane to LM2506 DES
LM2512A - 3 MD Lane - Reserved for future use
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Take care in reviewing the MPL signals and serial bit mapping to ensure proper connection between the devices.
MPL-1
DES
LM2512A
LM2512A
FPD95320,
DES
MPL-1
DES
MDO
MD1
MC
MDO
MD1
MC
MDO (NC)
MD1
MD0
MC
MD1
MC
MC
MD2
MD2
MD2
MD1
MD2
MD3 (NC)
Figure 20. Application Configurations
LM2512A OPERATION
POWER SUPPLIES
The VDD and VDDA (MPL and PLL) must be connected to the same potential between 1.6V and 2.0V. VDDIO
powers the logic interface and may be powered between 1.6V and 3.0V to be compatible with a wide range of
host and target devices.
VDD/VDDA should be powered ON at the same time as VDDIO or before. VDDIO then VDD/VDDA is not recommended.
BYPASS RECOMMENDATIONS
Bypass capacitors should be placed near the power supply pins of the device. Use high frequency ceramic
(surface mount recommended) 0.1 µF capacitors. A 2.2 to 4.7 µF Tantalum capacitor is recommended near the
SER VDDA pin for PLL bypass. Connect bypass capacitors with wide traces and use dual or larger via to reduce
resistance and inductance of the feeds. Utilizing a thin spacing between power and ground planes will provide
good high frequency bypass above the frequency range where most typical surface mount capacitors are less
effective. To gain the maximum benefit from this, low inductance feed points are important. Also, adjacent signal
layers can be filled to create additional capacitance. Minimize loops in the ground returns also for improved
signal fidelity and lowest emissions.
UNUSED/OPEN PINS
Unused inputs must be tied to the proper input level—do not float them.
PHASE-LOCKED LOOP
A PLL is enabled to generate the serial link clock. The Phase-locked loop system generates the serial data clock
at 4X or 6X of the input clock depending upon the number of MD Lanes selected. The MC rate is limited to 80
MHz for this enhanced Class 0 MPL PHY.
POWER DOWN/OFF CONFIGURATION / OPTIONS AND CLOCK STOP
The LM2512A (SER) can be controlled by it’s PD* input pin or via a auto power down mode that monitors the
PCLK input signal.
For PD* Input Power Down control, a GPO signal from the host is used to enable and disable the LM2512A and
the DES. The LM2512A is enabled when the PD* input is High and disabled when the PD* input is Low.
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When using the auto power down mode, the PD* input needs to be held High. When the PCLK is held static, the
SER will detect this condition and power down. When the PCLK is restarted, the SER powers up, The DES is
calibrated, and the PLL locks to the incoming clock signal. Once this is complete, video data transmission can
occur. See Figure 3, Figure 4, and Figure 9. The stopping of the pixel clock should be done cleanly. The
minimum clock stop gap should be at least 4 PCLK cycles wide. Floating of the PCLK input pin is not
recommended. Consult the MPL DES datasheet to determine requirements that the DES requires.
LM2512A vs LM2512
The following list provides the differences between the LM2512 and the enhanced LM2512A.
•
•
•
•
•
•
•
Increased Idata Current
Enhanced Current Matching
Enhanced MC Duty Cycle
2 MD Lane Default Configuration
Dither Off Default
LUT Default State (IDDZ
)
MPL Driver Edge Rate Control Option
APPLICATION INFORMATION
SYSTEM BANDWIDTH CALCULATIONS
For a HVGA (320 X 480) application with the following assumptions: 60 Hz +/−5% refresh rate, 10% blanking,
RGB666, and 2 MD Lanes and following calculations can be made:
Calculate PCLK - 320 X 480 X 1.1 X 60 X 1.05 = 10.6 MHz PCLK
Calculate MC rate - since the application is 2 MD lanes, PCLK X 6 is the MC rate or 63.87 MHz. Also check that
this MC rate does not exceed the MC maximum rate for the chipset.
Calculate MD rate - MPL uses both edges of the MC to send serialized data, thus data rate is 2X the MC rate, or
127.7 Mbps per MD lane in our example.
Calculate the application throughput - using 2 MD lanes, throughput is 2 X of the MD rate or 255.5 Mbps of raw
band width.
For a VGA (640 X 480) application with the following assumptions: 55 Hz +/−5% refresh rate, 10% blanking,
RGB666, and 3 MD Lanes and following calculations can be made:
Calculate PCLK - 640 X 480 X 1.1 X 55 X 1.05 = 19.5 MHz PCLK
Calculate MC rate - since the application is 3 MD lanes, PCLK X 4 is the MC rate or 78.1 MHz. Also check that
this MC rate does not exceed the MC maximum rate for the chipset.
Calculate MD rate - MPL uses both edges of the MC to send serialized data, thus data rate is 2X the MC rate, or
156 Mbps per MD lane in our example.
Calculate the application throughput - using 3MD lanes, throughput is 3X of the MD rate or 468 Mbps of raw
band width.
SYSTEM CONSIDERATIONS
When employing the MPL SER/DES chipset in place of a parallel video bus, a few system considerations must
be taken into account. Before sending video data to the display, the SER/DES must be ready to transmit data
across the link. The MPL link must be powered up, and the PLL must be locked and the DES calibrated.
FLEX CIRCUIT RECOMMENDATIONS
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The MPL lines should generally run together to minimize any trace length differences (skew). For impedance
control and also noise isolation (crosstalk), guard ground traces are recommended in between the signals.
Commonly a Ground-Signal-Ground (GSGSGSG) layout is used. Locate fast edge rate and large swing signals
further away to also minimize any coupling (unwanted crosstalk). In a stacked flex interconnect, crosstalk also
needs to be taken into account in the above and below layers (vertical direction). To minimize any coupling
locate MPL traces next to a ground layer. Power rails also tend to generate less noise than LVCMOS so they are
also good candidates for use as isolation and separation.
The interconnect from the SER to the DES typically acts like a transmission line. Thus impedance control and
ground returns are an important part of system design. Impedance should be in the 50 to 100 Ohm nominal
range for the LM2512A. Testing has been done with cables ranging from 40 to 110 Ohms without error (BER
Testing). To obtain the impedance, adjacent grounds are typically required (1 layer flex), or a ground shield /
layer. Total interconnect length is intended to be in the 20cm range, however 30cm is possible at lower data
rates. Skew should be less than 500ps to maximize timing margins.
GROUNDING
While the LM2512A employs three separate types of ground pins, these are intended to be connected together
to a common ground plane. The separate ground pins help to isolate switching currents from different sections of
the integrated circuit (IC). Also required is a nearby signal return (ground) for the MPL signals. These should be
provided next to the MPL signals, as that will create the smallest current loop area. The grounds are also useful
for noise isolation and impedance control.
PCB RECOMMENDATIONS
General guidelines for the PCB design:
•
•
•
•
•
•
•
Floor plan, locate MPL SER near the connector to limit chance of cross talk to high speed serial signals.
Route serial traces together, minimize the number of layer changes to reduce loading.
Use ground lines as guards to minimize any noise coupling (specifies distance).
Avoid parallel runs with fast edge, large LVCMOS swings.
Also use a GSGSG pinout in connectors (Board to Board or ZIF).
DES device - follow similar guidelines.
Bypass the device with MLC surface mount devices and thinly separated power and ground planes with low
inductance feeds.
•
High current returns should have a separate path with a width proportional to the amount of current carried to
minimize any resulting IR effects.
CONNECTION DIAGRAM 49 NFBGA PACKAGE
Ball A1
A
B
C
D
E
F
G
1
2
3
4
5
6
7
Figure 21. TOP VIEW
(not to scale)
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Table 6. RGB SER Pinout
SER
A
1
B1
2
3
RES1
VS
4
5
MD2
MC
6
MD1
TM
7
MD0
PD*
R7
SPI_SDA/HS
NC
B
B2
B0
B3
VDDA
VSSA
VSSIO
B5
C
PCLK
VSSIO
B6
DE
SPI_CSX
VSSIO
R1
SPI_SCL
VDDIO
R4
D
VDDIO
B7
B4
R6
E
G5
R5
F
G0
G1
G4
VDD
VSSIO
G6
R0
R3
G
G2
G3
VSS
VDDIO
G7
R2
CONNECTION DIAGRAM 40 X2QFN PACKAGE
G2 11
G3 12
40 B0
SPI_SDA/
HS
39
LM2512ASN
TOP VIEW
40 Lead WQFN
6 mm x 6 mm x 0.4 mm
0.5 mm pitch
G4 13
G5 14
38 VS
37 DE
36
V
15
DD
V
DDA
(not to scale)
V
DDIO 16
G6 17
G7 18
R0 19
R1 20
35
V
SSA
34 MD2
33 MC
(DAP connection, center pad = GND)
32 MD1
31 MD0
Figure 22. TOP VIEW
(not to scale)
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REVISION HISTORY
Changes from Revision A (May 2013) to Revision B
Page
•
Changed layout of National Data Sheet to TI format .......................................................................................................... 20
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PACKAGE OPTION ADDENDUM
www.ti.com
2-May-2013
PACKAGING INFORMATION
Orderable Device
LM2512ASM/NOPB
LM2512ASMX/NOPB
LM2512ASN/NOPB
LM2512ASNX/NOPB
Status Package Type Package Pins Package
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Top-Side Markings
Samples
Drawing
Qty
(1)
(2)
(3)
(4)
ACTIVE
NFBGA
NFBGA
X2QFN
X2QFN
NZK
49
49
40
40
1000
Green (RoHS
& no Sb/Br)
SNAGCU
SNAGCU
CU SN
Level-3-260C-168 HR
Level-3-260C-168 HR
Level-3-260C-168 HR
Level-3-260C-168 HR
2512
ASM
ACTIVE
ACTIVE
ACTIVE
NZK
NJM
NJM
4500
250
Green (RoHS
& no Sb/Br)
2512
ASM
Green (RoHS
& no Sb/Br)
2512A
2500
Green (RoHS
& no Sb/Br)
CU SN
2512A
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a
continuation of the previous line and the two combined represent the entire Top-Side Marking for that device.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
2-May-2013
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
8-May-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
LM2512ASM/NOPB
LM2512ASMX/NOPB
LM2512ASN/NOPB
LM2512ASNX/NOPB
NFBGA
NFBGA
X2QFN
X2QFN
NZK
NZK
NJM
NJM
49
49
40
40
1000
4500
250
178.0
330.0
178.0
330.0
12.4
12.4
16.4
16.4
4.3
4.3
6.3
6.3
4.3
4.3
6.3
6.3
1.5
1.5
1.5
1.5
8.0
8.0
12.0
12.0
16.0
16.0
Q1
Q1
Q1
Q1
12.0
12.0
2500
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
8-May-2013
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SPQ
Length (mm) Width (mm) Height (mm)
LM2512ASM/NOPB
LM2512ASMX/NOPB
LM2512ASN/NOPB
LM2512ASNX/NOPB
NFBGA
NFBGA
X2QFN
X2QFN
NZK
NZK
NJM
NJM
49
49
40
40
1000
4500
250
213.0
367.0
213.0
367.0
191.0
367.0
191.0
367.0
55.0
35.0
55.0
38.0
2500
Pack Materials-Page 2
MECHANICAL DATA
NZK0049A
SLH49A (Rev D)
www.ti.com
MECHANICAL DATA
NJM0040A
SNA40A (Rev A)
www.ti.com
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