PTN2111 데이터 시트보기 (PDF) - Philips Electronics
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PTN2111 Datasheet PDF : 8 Pages
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Philips Semiconductors
1:10 LVDS clock distribution device
Product Data
PTN2111
FEATURES
• 100 ps part-to-part skew
• 35 ps output-to-output skew
• Differential design
• Meets LVDS specification for driver outputs and receiver inputs
• Reference voltage available output VBB
• Low voltage VCC range of +2.375 V to 2.625 V
• High signalling rate capability (above 622 MHz)
• Supports open, short, and terminated input fail-safe (HIGH output
state)
• Programmable drivers power off control
• Available in LQFP32 package
PIN CONFIGURATION
CK 1
SI 2
CLK0 3
CLK0 4
VBB 5
CLK1 6
CLK1 7
EN 8
24 Q3
23 Q3
22 Q4
21 Q4
20 Q5
19 Q5
18 Q6
17 Q6
DESCRIPTION
The PTN2111 is a low skew programmable 1:10 LVDS clock
distribution device. The selected input signal is fanned out to 10
identical differential outputs.
The PTN2111 features an 11-bit Shift Register with a serial-in and a
Control Register. The purpose of the Control Register is to enable or
power off each output clock channel and to select the clock input.
The PTN2111 is specifically designed, modeled and produced with
low skew as the key goal. Optimal design and layout serve to
minimize gate-to-gate skew within a device. The final result is a
dependable guaranteed low skew device.
The PTN2111 can be used for high performance clock distribution in
+2.5 V systems with LVDS levels. Designers can take advantage of
the device’s performance to distribute low skew clocks across the
backplane or the board.
ST00013
PIN DESCRIPTION
PIN NUMBER SYMBOL
1
CK
2
SI
3
CLK0
4
CLK0
5
VBB
6
CLK1
7
CLK1
8
EN
9, 25
GND
16, 32
31, 29, 27, 24,
22, 20, 18, 15,
13, 11
VCC
Q[0:9]
30, 28, 26, 23,
21, 19, 17, 14,
12, 10
Q[0:9]
NAME AND FUNCTION
Control register clock
Control register serial-in/CLK_SEL
Differential input
Differential input
Output reference voltage
Differential input
Differential input
Device enable/program
Ground
Supply voltage
Differential outputs
Differential outputs
TYPE NUMBER
PTN2111BD
NAME
LQFP32
DESCRIPTION
Plastic low profile quad flat package; 32 leads; body 7 x 7 x 1.4 mm
VERSION
SOT358-1
2001 Jun 19
2
853-2263 26561
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