IDT2309
3.3VZERODELAYCLOCKBUFFER
COMMERCIALANDINDUSTRIALTEMPERATURERANGES
IDT2309
3.3V ZERO DELAY
CLOCK BUFFER
FEATURES:
DESCRIPTION:
• Phase-Lock Loop Clock Distribution
• 10MHz to 133MHz operating frequency
• Distributes one clock input to one bank of five and one bankd
of four outputs
The IDT2309 is a high-speed phase-lock loop (PLL) clock buffer,
designedtoaddresshigh-speedclockdistributionapplications. Thezero
delay is achieved by aligning the phase between the incoming clock and
the output clock, operable within the range of 10 to 133MHz.
TheIDT2309isa16-pinversionoftheIDT2305. TheIDT2309accepts
one reference input, and drives two banks of four low skew clocks. The
-1H version of this device operates at up to 133MHz frequency and has
higher drive than the -1 device. All parts have on-chip PLLs which lock
to an input clock on the REF pin. The PLL feedback is on-chip and is
obtained from the CLKOUT pad. In the absence of an input clock, the
IDT2309 enters power down, and the outputs are tri-stated. In this mode,
• Separate output enable for each output bank
• Output Skew < 250ps
• Low jitter <200 ps cycle-to-cycle
• IDT2309-1 for Standard Drive
• IDT2309-1H for High Drive
• No external RC network required
• Operates at 3.3V VDD
• Available in SOIC and TSSOP packages
the device will draw less than 25μA.
The IDT2309 is characterized for both Industrial and Commercial
operation.
FUNCTIONALBLOCKDIAGRAM
16
CLKOUT
2
CLKA1
PLL
1
REF
3
CLKA2
14
CLKA3
15
CLKA4
8
S2
Control
Logic
9
S1
6
CLKB1
7
CLKB2
10
CLKB3
11
CLKB4
TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
MAY 2010
1
c
2010 Integrated Device Technology, Inc.
DSC 5175/7
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
