pll102-109 PhaseLink Corp., pll102-109 Datasheet

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pll102-109

Manufacturer Part Number
pll102-109
Description
Programmable Zero Delay Clock Driver
Manufacturer
PhaseLink Corp.
Datasheet
FEATURES
DESCRIPTIONS
The PLL102-109 is a zero delay buffer that distributes
a single-ended clock input to six pairs of differential
clock outputs and one feedback clock output. Output
signal duty cycles are adjusted to 50%, independent of
the duty cycle at CLK_INT. The PLL can be bypassed
for test purposes by strapping AV
BLOCK DIAGRAM
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
CLK_INT
FB_INT
AV
PLL clock distribution optimized for Double Data
Rate SDRAM application up to 266Mhz.
Distributes one clock Input to one bank of six
differential outputs.
Track spread spectrum clocking for EMI reduction.
Programmable delay between CLK_INT and CLK[T/C]
from –0.8ns to +3.1ns by programming CLKINT and
FBOUT skew channel, or from –1.1ns to +3.5ns if
additional DDR skew channels are enabled.
Two independent programmable DDR skew chan-
nels from –0.3ns to +0.4ns with step size 100ps.
Support 2-wire I 2 C serial bus interface.
2.5V Operating Voltage.
Available in 28-Pin 209mil SSOP.
AV
DD
DD
Programmable
Delay Channel
+170ps step
(0~2.5ns)
DD
to ground.
Programmable DDR Zero Delay Clock Driver
Control
Logic
PLL
PIN CONFIGURATION
CLK_INT
CLKCO
CLKC1
CLKC2
CLKT0
CLKT1
CLKT2
AGND
AVDD
SCLK
GND
VDD
VDD
Preliminary
N/C
-300~+400ps
Programmable
Skew Channel
-600~+800ps
±100ps step
-300~+400ps
±200ps step
±100ps step
1
2
3
4
5
6
7
8
9
10
11
12
13
14
PLL102-109
28
27
26
25
24
23
22
21
20
19
18
17
16
15
GND
CLKC5
CLKT5
CLKC4
CLKT4
VDD
SDATA
N/C
FB_INT
ADDR_SEL
CLKT3
CLKC3
GND
FB_OUTT
Rev 02/26/03 Page 1
FB_OUTT
CLKT0
CLKC0
CLKT1
CLKC1
CLKT5
CLKC5
CLKT2
CLKC2
CLKT3
CLKC3
CLKT4
CLKC4

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pll102-109 Summary of contents

Page 1

... Support 2-wire serial bus interface. 2.5V Operating Voltage. Available in 28-Pin 209mil SSOP. DESCRIPTIONS The PLL102-109 is a zero delay buffer that distributes a single-ended clock input to six pairs of differential clock outputs and one feedback clock output. Output signal duty cycles are adjusted to 50%, independent of the duty cycle at CLK_INT ...

Page 2

... PLL for IN synchronization with CLK_INT to eliminate phase error. I/O Serial data input for serial interface port. IN CLK_INC CLKT PLL102-109 Preliminary Description OUTPUTS CLKC FB_OUTT Rev 02/26/03 Page 2 PLL State ...

Page 3

... Programmable DDR Zero Delay Clock Driver Default Description - Reserved - Reserved 1 CLKT5, CLKC5 (1= active, 0=inactive) 1 CLKT4, CLKC4 (1= active, 0=inactive) 1 CLKT3, CLKC3 (1= active, 0=inactive) 1 CLKT2, CLKC2 (1= active, 0=inactive) 1 CLKT1, CLKC1 (1= active, 0=inactive) 1 CLKT0, CLKC0 (1= active, 0=inactive) PLL102-109 Preliminary Rev 02/26/03 Page 3 ...

Page 4

... These three bits will adjust timing of DDRC signals (CLK2, CLK3, CLK4) either positive or negative delay up to +400ps or –300ps 1 with 100ps per step. (see Table Reserved - - Reserved - - Reserved PLL102-109 Preliminary FBOUT Skew Setting ( 200ps/step) +800ps +600ps +400ps Setting applies to the following out- +200ps puts: Default 1. FB_OUTT -200ps -400ps -600ps ...

Page 5

... These four bits will program the propagation delay from CLK_INT 0 to the input of PLL within the range between 0ps and 2.5ns with 0 170ps step size. (see Table 2) 0 +2,550 ps +2,380 ps +2,210 ps +2,040 ps +1,870 ps +1,700 ps +1,530 ps +1,360 ps +1,190 ps +1,020 ps +850 ps +680 ps +510 ps +340 ps +170 ps Default PLL102-109 Preliminary Description Rev 02/26/03 Page 5 ...

Page 6

... These three bits will program drive strength for CLK0, CLK1 and 1 CLK5 output clocks (see Table 3 Reserved - - Reserved - - Reserved Default 1 Reserved. 1 Reserved. 0 These three bits will program drive strength for CLK2, CLK3 and 1 CLK4 output clocks (see Table 3 Reserved - - Reserved - - Reserved PLL102-109 Preliminary Description Description Rev 02/26/03 Page 6 ...

Page 7

... Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Programmable DDR Zero Delay Clock Driver Default 1 Reserved. 1 Reserved. 1 Reserved. 1 Reserved. 1 Reserved. 0 These three bits will program drive strength for FBOUTT output 1 clock (see Table 3). 1 PLL102-109 Preliminary Description Rev 02/26/03 Page 7 ...

Page 8

... VDD=2.7V, V =VDD or GND OZ OUT I = -18mA VDD or GND VDD or GND OUT O VDD = Min to Max VDD = 2.3V -12mA OH VDD = Min to Max VDD = 2.3V 12mA PLL102-109 Preliminary MIN. MAX. - 3 0 0 -65 150 0.7 MIN. TYP. 250 ...

Page 9

... T cyc-cyc 100/133/200/266MHz (phase error) All differential input and output terminals are terminated with T oskew 120 16pF T pskew 66MHz to 100MHz D T 101MHz to 266MHz t t Load = 120 16pF r, f PLL102-109 Preliminary MIN. TYP. MAX. 2.3 2.5 2.7 2.3 2.5 2 MIN. MAX. 66 266 40 60 0.1 MIN. ...

Page 10

... Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Programmable DDR Zero Delay Clock Driver 47745 Fremont Blvd., Fremont, CA 94538, USA Tel: (510) 492-0990 Fax: (510) 492-0991 PART NUMBER PLL102-109 X C PLL102-109 Preliminary Package SSOP (QSOP) 209mil Pins Unit ...

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