fin12a Fairchild Semiconductor, fin12a Datasheet

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fin12a

Manufacturer Part Number
fin12a
Description
Fin12a Mserdes Low Voltage 12-bit Bi-directional Serializer/deserializer With Multiple Frequency Ranges Preliminary
Manufacturer
Fairchild Semiconductor
Datasheet

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© 2005 Fairchild Semiconductor Corporation
FIN12AGFX
(Preliminary)
FIN12AMLX
FIN12A
PSerDes¥
Low Voltage 12-Bit Bi-Directional Serializer/Deserializer
with Multiple Frequency Ranges (Preliminary)
General Description
The FIN12A is a 12-bit serializer capable of running a par-
allel frequency range between 5MHz and 56MHz. The fre-
quency range is selected by the S1 and S2 control signals.
The bi-directional data flow is controlled through use of a
direction (DIRI) control pin. The devices can be configured
to operate in a unidirectional mode only by hardwiring the
DIRI pin. An internal PLL generates the required bit clock
frequency for transfer across the serial link. Options exist
for dual or single PLL operation dependent upon system
operational parameters. The device has been designed for
low power operation and utilizes Fairchild Low Power
LVDS interface. The device also supports an ultra low
power Power-Down mode for conserving power in battery
operated applications.
Ordering Code:
Pb-Free package per JEDEC J-STD-020B.
BGA and MLP packages available in Tape and Reel only.
P
Order Number
SerDes
¥
is a trademark of Fairchild Semiconductor Corporation.
Package Number
BGA042A
MLP032A
Pb-Free 42-Ball Ultra Small Scale Ball Grid Array (USS-BGA), JEDEC MO-195,
3.5mm Wide
Pb-Free 32-Terminal Molded Leadless Package (MLP), Quad, JEDEC MO-220, 5mm
Square
DS500889
Features
Low power consumption
Low power LVDS differential interface
LVCMOS parallel I/O interface
• 2 mA source/sink current
• Over-voltage tolerant control signals
I/O power supply range between 1.65V and 3.6V
Analog Power Supply range of 2.775V
Multi-Mode operation allows for a single device to
operate as Serializer or Deserializer
Internal PLL with no external components
Standby Power-Down mode support
Small footprint 32-terminal MLP packaging
Built in differential termination
Supports external CKREF frequencies between
5MHz and 56MHz
Serialized data rate up to 784Mb/s
Package Description
April 2005
Revised May 2005
www.fairchildsemi.com
Preliminary
5%

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fin12a Summary of contents

Page 1

... Low Voltage 12-Bit Bi-Directional Serializer/Deserializer with Multiple Frequency Ranges (Preliminary) General Description The FIN12A is a 12-bit serializer capable of running a par- allel frequency range between 5MHz and 56MHz. The fre- quency range is selected by the S1 and S2 control signals. The bi-directional data flow is controlled through use of a direction (DIRI) control pin ...

Page 2

Functional Block Diagram Connection Diagram www.fairchildsemi.com Terminal Assignments for MLP (Top View) 2 Preliminary ...

Page 3

... Other layout orientations may require that traces or cables cross. Control Logic Circuitry The FIN12A has the ability to be used as a 12-bit Serializer or a 12-bit Deserializer. Terminals S1 and S2 must be set to accommodate the clock reference input frequency range of the serializer ...

Page 4

Power-Down Mode Mode 0 is used for powering down and resetting the device. When both of the mode signals are driven to a LOW state the PLL and references will be disabled, differ- ential input buffers will be shut off, ...

Page 5

Serializer Operation Mode FIGURE 1. Serializer Timing Diagram (CKREF equals STROBE) FIGURE 2. Serializer Timing Diagram (CKREF does not equal STROBE) FIGURE 3. Serializer Timing Diagram Using Provided Bit Clock (No CKREF) (Continued) 5 Preliminary www.fairchildsemi.com ...

Page 6

Deserializer Operation Mode The operation of the deserializer is only dependent upon the data received on the DSI data signal pair and the CKSI clock signal pair. The following two sections describe the operation of the deserializer under two distinct ...

Page 7

... LVDS by sourcing and sinking a balanced current through the output pair. Like LVDS an input source termination resistor is required to develop a voltage at the differential input pair. The FIN12A device incorporates an internal ter- mination resistor on the CKSI receiver and a gated internal termination resistor on the DS input receiver. The gated ter- mination resistor insures proper termination regardless of direction of data flow ...

Page 8

PLL Circuitry The CKREF input signal is used to provide a reference to the PLL. The PLL will generate internal timing signals capable of transferring data at 14 times the incoming CKREF signal. The output of the PLL is a ...

Page 9

Application Mode Diagrams Modes Unidirectional Data Transfer FIGURE 8. Simplified Block Diagram for Unidirectional Serializer and Deserializer Figure 8 shows the basic operation diagram when a pair of SerDes is configured in an unidirectional operation mode. Master ...

Page 10

... Figure 11 shows an application for a camera interface for a flip phone using the FIN12A. For this application the refer- www.fairchildsemi.com (Continued) ence clock is generated on the baseband side of the flip and passed across the SerDes pair differentially ...

Page 11

Absolute Maximum Ratings Supply Voltage ( ALL Input/Output Voltage LVDS Output Short Circuit Duration Storage Temperature Range (T ) STG Maximum Junction Temperature ( Lead Temperature ( (Soldering, 4 seconds) ESD Rating Human Body ...

Page 12

Power Supply Currents Symbol Parameter I V Serializer Static All DP and Control Inputs DDA1 DDA Supply Current NOCKREF Deserializer Static All DP and Control Inputs DDA2 DDA Supply ...

Page 13

Serializer AC Electrical Characteristics Serializer Timing Characteristics Symbol Parameter t Differential Output Rise Time (20% to 80%) TLH t Differential Output Fall Time (80% to 20%) THL t DP[n] Setup to STROBE STC t DP[n] Hold to STROBE HTC t ...

Page 14

Control Logic Timing Controls Symbol Parameter t , Propagation Delay PHL_DIR DIRI LOW-to-HIGH or HIGH-to-LOW t DIRI-to-DIRO PLH_DIR t , Propagation Delay PLZ DIRI LOW-to-HIGH t DIRI-to-DP PHZ t , Propagation Delay PZL DIRI HIGH-to-LOW t DIRI-to-DP PZH t , ...

Page 15

AC Loading and Waveforms FIGURE 12. Differential LpLVDS Output DC Test Circuit FIGURE 14. “Worst Case” Serializer Test Pattern FIGURE 15. LpLVDS Output Load and Transition Times  Note A: For All input pulses ...

Page 16

AC Loading and Waveforms Setup: Mode0 “0” or “1”m MODE1 “1”, SER/DES FIGURE 17. Serial Setup and Hold Time Setup: DIRI “0”, CKSI and DS are Valid Signals FIGURE 19. Deserializer Data Valid Window Time and Clock Output Parameters Note: ...

Page 17

AC Loading and Waveforms FIGURE 23. Differential Input Setup and Hold Times Note: CKREF Signal can be stopped either HIGH or LOW FIGURE 25. PLL Loss of Clock Disable Time Note: CKREF must be active and PLL must be stable ...

Page 18

Tape and Reel Specification TAPE FORMAT for USS-BGA Dimensions are in millimeters Package 0.10 0.10 0.05 min 3.5 x 4.5 TBD TBD 1.55 1.5 Note: A0, B0, and K0 dimensions are determined with ...

Page 19

Tape and Reel Specification TAPE FORMAT for MLP Package Tape Designator Section Leader (Start End) MLX Carrier Trailer (Hub End) MLP Embossed Tape Dimension (Continued) Number Cavity Cavities Status 125 (typ) Empty 2500/3000 Filled 75 (typ) Empty 19 Preliminary Cover ...

Page 20

Physical Dimensions inches (millimeters) unless otherwise noted Pb-Free 42-Ball Ultra Small Scale Ball Grid Array (USS-BGA), JEDEC MO-195, 3.5mm Wide www.fairchildsemi.com Package Number BGA042A 20 Preliminary ...

Page 21

Physical Dimensions Physical Dimensions inches (millimeters) unless otherwise noted (Continued) inches (millimeters) unless otherwise noted (Continued) Pb-Free 32-Terminal Molded Leadless Package (MLP), Quad, JEDEC MO-220, 5mm Square Fairchild does not assume any responsibility for use of any circuitry described, no ...

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