FIN24AC_07 FAIRCHILD [Fairchild Semiconductor], FIN24AC_07 Datasheet

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FIN24AC_07

Manufacturer Part Number
FIN24AC_07
Description
22-Bit Bi-Directional Serializer/Deserializer
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
© 2005 Fairchild Semiconductor Corporation
FIN24AC Rev. 1.0.3
FIN24AC
Features
Applications
Ordering Information
Pb-Free package per JEDEC J-STD-020B. BGA and MLP packages available in tape and reel only.
µSerDes
– Multiple power-down modes
– AC coupling with DC balance
– -90dBm EMI when using CTL in lab conditions
– Minimized shielding
– Minimized EMI filter
– Minimum susceptibility to external interference
– LCD, cell phone, digital camera, portable gaming,
Low power for minimum impact on battery life
100nA in standby mode, 5mA typical operating
conditions
Cable reduction: 25:4 or greater
Bi-directional operation 50:7 reduction or greater
Differential signaling:
Up to 22 bits in either direction
Up to 20MHz parallel interface operation
Voltage translation from 1.65V to 3.6V
Ultra-small and cost-effective packaging
High ESD protection: >8kV HBM
Parallel I/O power supply (V
1.65V to 3.6V
Micro-controller or pixel interfaces
Image sensors
Small displays
Order Number
FIN24ACGFX
FIN24ACMLX
using a near field probe
printer, PDA, video camera, automotive
TM
is a trademark of Fairchild Semiconductor Corporation.
22-Bit Bi-Directional Serializer/Deserializer
Package
Number
BGA042
MLP040
DDP
) range between
Pb-Free
Yes
Yes
42-Ball Ultra Small Scale Ball Grid Array (USS-BGA),
JEDEC MO-195, 3.5mm Wide
40-Terminal Molded Leadless Package (MLP), Quad,
JEDEC MO-220, 6mm Square
General Description
The FIN24AC µSerDes™ is a low-power Serializer/
Deserializer (SerDes) that can help minimize the cost
and power of transferring wide signal paths. Through the
use of serialization, the number of signals transferred
from one point to another can be significantly reduced.
Typical reduction is 4:1 to 6:1 for unidirectional paths.
For bi-directional operation, using half duplex for multiple
sources, it is possible to increase the signal reduction to
close to 10:1. Through the use of differential signaling,
shielding and EMI filters can also be minimized, further
reducing the cost of serialization. The differential signal-
ing is also important for providing a noise-insensitive sig-
nal that can withstand radio and electrical noise sources.
Major reduction in power consumption allows minimal
impact on battery life in ultra-portable applications. A
unique word boundary technique assures that the actual
word boundary is identified when the data is deserial-
ized. This guarantees that each word is correctly aligned
at the deserializer on a word-by-word basis through a
unique sequence of clock and data that is not repeated
except at the word boundary. A single PLL is adequate
for most applications, including bi-directional operation.
Package Description
www.fairchildsemi.com
January 2007
tm

Related parts for FIN24AC_07

FIN24AC_07 Summary of contents

Page 1

FIN24AC 22-Bit Bi-Directional Serializer/Deserializer Features ■ Low power for minimum impact on battery life – Multiple power-down modes – AC coupling with DC balance ■ 100nA in standby mode, 5mA typical operating conditions ■ Cable reduction: 25:4 or greater ■ ...

Page 2

Functional Block Diagram CKREF STROBE DP[21:22] DP[1:20] DP[23:24] CKP S1 S2 DIRI © 2005 Fairchild Semiconductor Corporation FIN24AC Rev. 1.0.3 Word PLL 0 Boundary Generator I cksint Serializer Control Serializer oe Deserializer Deserializer cksint Control WORD CK Generator Control Logic ...

Page 3

Terminal Description Terminal Name I/O Type DP[1:20] I/O DP[21:22] I DP[23:24] O CKREF IN STROBE IN CKP OUT DSO+ / DSI– DIFF-I/O DSO– / DSI+ CKSI+, CKSI– DIFF-IN CKSO+, CKSO– DIFF-OUT DIRI IN DIRO OUT V ...

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Connection Diagrams DP[10] DP[11] DP[12] DP[13] DP[14] DP[15] DP[16] Figure 2. Terminal Assignments for MLP (Top View (Top View) © 2005 Fairchild Semiconductor Corporation FIN24AC Rev. 1.0.3 ...

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Control Logic Circuitry The FIN24AC has the ability to be used as a 24-bit Seri- alizer or a 24-bit Deserializer. Pins S1 and S2 must be set to accommodate the clock reference input frequency range of the serializer. Table 1 ...

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Serializer Operation Mode The serializer configurations are described in the following sections. The basic serialization circuitry works essentially the same in these modes, but the actual data and clock streams differ depending on if CKREF is the same as the ...

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Serializer Operation Mode Serializer Operation: (Figure 6), DIRI = 1, No CKREF CKSI DP[1:24] WORD n-1 STROBE DSO CKS0 No Data Figure 6. Serializer Timing Diagram Using Provided Bit Clock (No CKREF) © 2005 ...

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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 ...

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Embedded Word Clock Operation The FIN24AC sends and receives serial data source synchronously with a bit clock. The bit clock has been modified to create a word boundary at the end of each data word. The word boundary has been ...

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From – Serializer From Control + To – Deserializer Figure 10. Bi-Directional Differential I/O Circuitry PLL Circuitry The CKREF input signal is used to provide a reference to the PLL. The PLL generates internal timing signals capa- ble of ...

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Application Mode Diagrams CKREF_M STROBE_M DP[1:12]_M Master Device Operating as a Serializer DIR = “1” “0” Figure 11. Simplified Block Diagram for Unidirectional Serializer and Deserializer Figure 11 shows basic operation when a pair of SerDes ...

Page 12

Base Unit LCD Unit VSYNC/HSYNC Camera Unit GPIO Figure 13. Multiple Units, Unidirectional Signals in Each Direction Figure 13 shows a half-duplex connectivity diagram. This connectivity allows for two unidirectional data streams to be sent across a single pair of ...

Page 13

Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera- ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi- tion, ...

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DC Electrical Characteristics Values are provided for over-supply voltage and operating temperature ranges, unless otherwise specified. Symbol Parameter LVCMOS I/O V Input High Voltage IH V Input Low Voltage IL V Output High Voltage OH V Output Low Voltage OL ...

Page 15

Power Supply Currents Symbol Parameter V Serializer Static DDA I DDA1 Supply Current V Deserializer Static DDA I DDA2 Supply Current V Serializer Static Supply DDS I DDS1 Current V Deserializer Static Supply DDS I DDS2 Current V Power-Down Supply ...

Page 16

Symbol Parameter f Maximum Serial Data Rate MAX t DP Setup to STROBE STC ( Hold to STROBE HTC (n) f CKREF Frequency Relative to REF Strobe Frequency SERIALIZER AC ELECTRICAL CHARACTERISTICS t Transmitter Clock Input to TCCD ...

Page 17

Control Logic Timing Controls Symbol Parameter t , Propagation Delay PHL_DIR t DIRI-to-DIRO PLH_DIR Propagation Delay PLZ PHZ DIRI-to- Propagation Delay PZL PZH DIRI-to- Deserializer Disable Time: PLZ PHZ S0 or ...

Page 18

AC Loading and Waveforms Input Figure 14. Differential CTL Output DC Test Circuit DP[1:12] 666h CKREF CKS0- CKS0 Note: The “worst-case” test pattern produces a maximum toggling of ...

Page 19

AC Loading and Waveforms Setup Time t STC STROBE DP[1:12] Hold Time STROBE DP[1:12] Data Setup: MODE0 = “0” or “1”, MODE1 = “1”, SER/DES = “1” Figure 19. Serial Setup and Hold Time Data Valid CKP Data DP[1:12] t ...

Page 20

AC Loading and Waveforms t S_DS CKSI- V DIFF=0 CKSI+ DSI DIFF=0 ID DSI- Figure 25. Differential Input Setup and Hold Times t TPPLD0 CKREF CKS0 Note: CKREF Signal can be stopped either HIGH or LOW. Figure ...

Page 21

Tape and Reel Specification Dimensions are in millimeters unless otherwise noted. BGA Embossed Tape Dimension ±0.1 ±0.1 ±0.05 Package 3.5 x 4.5 TBD TBD 1.55 Note: 10. ...

Page 22

Tape and Reel Specification Dimensions are in millimeters unless otherwise noted. MLP Embossed Tape Dimension ±0.1 ±0.1 ±0.05 Package 5.35 5.35 1. ...

Page 23

Physical Dimensions Dimensions are in millimeters unless otherwise noted. 2X 0.10 C TERMINAL A1 CORNER INDEX AREA (QA CONTROL VALUE) 1.00 MAX 0. SEATING PLANE Figure 31. Pb-Free, 42-Ball, Ultra Small Scale Ball Grid Array (USS-BGA), ...

Page 24

Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. Figure 32. Pb-Free, 40-Terminal, Molded Leadless Package (MLP), Quad, JEDEC MO-220, 6mm Square © 2005 Fairchild Semiconductor Corporation FIN24AC Rev. 1.0.3 (DATUM A) 24 www.fairchildsemi.com ...

Page 25

Fairchild Semiconductor Corporation FIN24AC Rev. 1.0.3 25 www.fairchildsemi.com ...

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