Skew Buffers Generates copies High-speed clock inputs. Supports t
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PLL103-11
Skew Buffers
Generates copies High-speed clock inputs. Supports three SDRAM DIMMS synchronous clocks. Supports 2-wire serial interface with readback. duty cycle with jitter. Less than delay. Skew between outputs less than Tri-state testing. Frequency MHz. 3.0V-3.7V Supply range. Available 28-pin 300mil SOIC package.
CONFIGURATION
SDRAM0 SDRAM1 SDRAM2 SDRAM3 BUF_IN SDRAM4 SDRAM5 SDRAM12 VDD1 SDATA SDRAM11 SDRAM10 SDRAM9 SDRAM8 SDRAM7 SDRAM6 GND1 SCLK
PLL103-11
BLOCK DIAGRAM
SDRAM0 SDATA SCLK Control SDRAM2 SDRAM3 SDRAM4 SDRAM5 SDRAM6 BUF_IN SDRAM7 SDRAM8 SDRAM9 SDRAM10 SDRAM11 SDRAM12 SDRAM1
POWER GROUP
VDD: SDRAM (0:12) VDD1: Circuitry
GROUND GROUP
GND: SDRAM (0:12) GND1: Circuitry
SPECIFICATIONS
BUF_IN SDRAM outputs Delay: Output Slew: V/ns. Output Skew: ±250 Output Duty Cycle:
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
11/07/00 Page
PLL103-11
Skew Buffers
DESCRIPTIONS
Name
SDRAM (0:5) SDRAM (6:11) SDRAM BUF_IN SDATA SCLK VDD1 GND1
Number
2,3,6,7,10,11 18,19,22, 23,26,27 1,5,20,24,28 4,8,17,21,25
Type
SDRAM Byte0 Clock outputs. SDRAM Byte1 Clock outputs. SDRAM Byte2 Clock outputs.
Description
Input fanout buffers SDRAM (0:12). Serial data inputs serial interface port. 3.3V Power supply SDRAM buffer. 3.3V Power supply circuitry. Ground SDRAM buffer. Power supply circuitry.
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
11/07/00 Page
PLL103-11
Skew Buffers
CONFIGURATION SETTING
Address Assignment Slave Receiver/Transmitter Data Transfer Rate
Provides both slave write readback functionality Standard mode 100kbits/s This serial protocol designed allow both blocks write read from controller. bytes must accessed sequential order from lowest highest byte. Each byte transferred must followed acknowledge bit. byte transferred without acknowledged will terminate transfer. write read block both begins with master sending slave address write condition (0xD2) read condition (0xD3). Following acknowledge this address byte, Write Mode: Command Byte Byte Count Byte must sent master ignored slave, Read Mode: Byte Count Byte will read master then other Data Byte. Byte Count Byte default power-up (0x09).
Data Protocol
CONTROL REGISTERS
BYTE SDRAM(0:5) Clock Register (1=Enable, 0=Disable)
Pin#
Default
Description
SDRAM5 (Active/Inactive) SDRAM4 (Active/Inactive) Reserved Reserved SDRAM3 (Active/Inactive) SDRAM2 (Active/Inactive) SDRAM1 (Active/Inactive) SDRAM0 (Active/Inactive)
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
11/07/00 Page
PLL103-11
Skew Buffers
BYTE SDRAM(6:11) Clock Register (1=Enable, 0=Disable)
Pin#
Default
Description
SDRAM11 (Active/Inactive) SDRAM10 (Active/Inactive) SDRAM9 (Active/Inactive) SDRAM8 (Active/Inactive) Reserved Reserved SDRAM7 (Active/Inactive) SDRAM6 (Active/Inactive)
BYTE SDRAM12 Clock Register (1=Enable, 0=Disable)
Pin#
Default
Description
Reserved SDRAM12 (Active/Inactive) Reserved Reserved Reserved Reserved Reserved Reserved
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
11/07/00 Page
PLL103-11
Skew Buffers
ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings PARAMETERS
Supply Voltage Input Voltage, Output Voltage, Storage Temperature Ambient Operating Temperature
SYMBOL
MIN.
MAX.
UNITS
Exposure device under conditions beyond limits specified Maximum Ratings extended periods cause permanent damage device affect product reliability. These conditions represent stress rating only, functional operations device these other conditions above operational limits noted this specification implied.
AC/DC Electrical Specifications PARAMETERS
Input High Current Input Current Input High Voltage Input Voltage Input Frequency Input Capacitance
SYMBOL
CONDITIONS
=0V; with pull-up resistors =0V; with 100k pull-up resistors
MIN.
TYP.
MAX.
UNITS
-0.3 =3.3V; outputs loaded Logic Inputs 66MHz 100MHz 30pf; 66MHz 30pf; 100MHz Stopped, input
+0.3
Operating Supply Current
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
11/07/00 Page
PLL103-11
Skew Buffers
Output Buffer Electrical Specifications
Unless otherwise stated, power supplies 3.3V±5%, ambient temperature range 70°C
PARAMETERS
Output High Voltage Output Voltage Output High Current Output Current Output Impedance Output Impedance Rise Time Fall Time Skew Duty Cycle Propagation
SYMBOL
skew PROP PROPEN PROPDIS
CONDITIONS
(0.5) (0.5) 2.4V 0.4V
MIN.
TYP.
0.27 -115
MAX.
UNITS
0.95 0.95
1.33 1.33
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
11/07/00 Page
PLL103-11
Skew Buffers
PACKAGE INFORMATION
0.400 0.410 10.160 10.414
0.292 0.299 7.417 7.959
0.014 0.019 0.356 0.483 0.015 (0.381) 0.009 0.012 (0.229 0.305) 0.701 0.711 (17.81 18.06)
0.050 1.27 0.088 0.096 (2.235 2.438)
0.097 0.104 (2.464 2.642) 30-60 0.050 (1.27) 0.005 0.0115 (0.127 0.2921)
SOIC
ORDERING INFORMATION
part ordering, please contact Sales Department:
47745 Fremont Blvd., Fremont, 94538, Tel: (510) 492-0990 Fax: (510) 492-0991
PART NUMBER
order number this device combination following: Device number, Package type Operating temperature range
PLL103-11
PART NUMBER TEMPERATURATURE C=COMMERCIAL M=MILITARY I=INDUSTRAL PACKAGE TYPE S=SOIC
PhaseLink Corporation, reserves right make changes products specifications, both time without notice. information furnished PhaseLink believed accurate reliable. However, PhaseLink makes guarantee warranty concerning accuracy said information shall responsible loss damage whatever nature resulting from reliance upon this product. LIFE SUPPORT POLICY: PhaseLink's products authorized critical components life support devices systems without express written approval President PhaseLink Corporation.
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
11/07/00 Page
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