Skew Buffers Generate copies High-speed clock inputs. Supports fo
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PLL103-01
Skew Buffers
Generate copies High-speed clock inputs. Supports four 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. 48-pin SSOP package.
CONFIGURATION
SDRAM0 SDRAM1 SDRAM2 SDRAM3 BUF_IN SDRAM4 SDRAM5 SDRAM6 SDRAM7 SDRAM16 VDD1 SDATA SDRAM15 SDRAM14 SDRAM13 SDRAM12 SDRAM11 SDRAM10 SDRAM9 SDRAM8 SDRAM17 GND1 SCLK
PLL103-01
BLOCK DIAGRAM
SDRAM0 SDATA SCLK Control SDRAM1 SDRAM2 SDRAM3 SDRAM4 SDRAM5 SDRAM6 SDRAM7 SDRAM8 BUF_IN SDRAM9 SDRAM10 SDRAM11 SDRAM12 SDRAM13 SDRAM14 SDRAM15 SDRAM16 SDRAM17
Note: pull
POWER GROUP
VDD: SDRAM( 0:17 VDD1: Circuitry
GROUND GROUP
GND: SDRAM( 0:17 GND1: Circuitry
SPECIFICATIONS
BUFIN 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
03/08/00 Page
PLL103-01
Skew Buffers
DESCRIPTIONS
Name
SDRAM (0:3) SDRAM (4:7) SDRAM (8:11) SDRAM (12:15) SDRAM (16:17) BUF_IN SDATA SCLK VDD1 GND1
Number
4,5,8,9 13,14,17,18 31,32,35,36 40,41,44,45 21,28 3,7,12,16,20,2 9,33,37,42,46 6,10,15,19,22, 27,30,34,39,43 1,2,47,48
Type
SDRAM Byte0 Clock outputs. SDRAM Byte1 Clock outputs. SDRAM Byte2 Clock outputs. SDRAM Byte3 Clock outputs. SDRAM Byte4 Clock outputs.
Description
Tristates outputs, active low. internal pull-up. Input fanout buffers SDRAM (0:17). Serial data inputs serial interface port. 3.3V Power supply SDRAM buffer. 3.3V Power supply circuitry. Ground SDRAM buffer. Power supply circuitry. Pins internally disconnected.
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
03/08/00 Page
PLL103-01
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(0:7) Clock Register (1=Enable, 0=Disable)
Pin#
Default
Description
SDRAM7 (Active/Inactive) SDRAM6 (Active/Inactive) SDRAM5 (Active/Inactive) SDRAM4 (Active/Inactive) SDRAM3 (Active/Inactive) SDRAM2 (Active/Inactive) SDRAM1 (Active/Inactive) SDRAM0 (Active/Inactive)
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
03/08/00 Page
PLL103-01
Skew Buffers
BYTE SDRAM(8:15) Clock Register (1=Enable, 0=Disable)
Pin#
Default
Description
SDRAM15 (Active/Inactive) SDRAM14 (Active/Inactive) SDRAM13 (Active/Inactive) SDRAM12 (Active/Inactive) SDRAM11 (Active/Inactive) SDRAM10 (Active/Inactive) SDRAM9 (Active/Inactive) SDRAM8 (Active/Inactive)
BYTE SDRAM(16:17) Clock Register (1=Enable, 0=Disable)
Pin#
Default
Description
SDRAM17 (Active/Inactive) SDRAM16 (Active/Inactive) Reserved Reserved Reserved Reserved Reserved Reserved
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
03/08/00 Page
PLL103-01
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
MIN.
TYP.
MAX.
UNITS
=0V; with pull-up resistors =0V; with 100k pull-up resistors -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
03/08/00 Page
PLL103-01
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
SYMBOL
skew PROP
CONDITIONS
(0.5) (0.5) 2.4V 0.4V
MIN.
TYP.
0.27 -115
MAX.
UNITS
0.95 0.95 1.33 1.33
Propagation
PROPEN PROPDIS
47745 Fremont Blvd., Fremont, California 94538 (510) 492-0990 (510) 492-0991
03/08/00 Page
PLL103-01
Skew Buffers
PACKAGE INFORMATION
0.400 0.410 10.160 10.414
0.292 0.299 7.417 7.959
0.008 0.0135 0.203 0.343
0.025 0.835
0.015 (0.381) 0.010 0.016 (0.25 0.41) 0.620 0.630 (15.75 16.00)
0.088 0.096 (2.250 2.450)
0.097 0.104 (2.467 2.642) 30-6 0.050 (1.346) 0.008 0.016 (0.20 0.41)
48PIN SSOP
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
PLL103-01
PART NUMBER TEMPERATURATURE C=COMMERCIAL M=MILITARY I=INDUSTRAL PACKAGE TYPE X=SSOP
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
03/08/00 Page
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