Programmable Clock Generator
5P49V5901
DATASHEET
Description
Features
The 5P49V5901 is a programmable clock generator intended
for high performance consumer, networking, industrial,
computing, and data-communications applications.
Configurations may be stored in on-chip One-Time
• Generates up to four independent output frequencies
• High performance, low phase noise PLL, <0.7 ps RMS
typical phase jitter on outputs:
2
– PCIe Gen1, 2, 3 compliant clock capability
– USB 3.0 compliant clock capability
– 1 GbE and 10 GbE
Programmable (OTP) memory or changed using I C
interface. This is IDTs fifth generation of programmable clock
®
technology (VersaClock 5).
The frequencies are generated from a single reference clock.
The reference clock can come from one of the two redundant
clock inputs. A glitchless manual switchover function allows
one of the redundant clocks to be selected during normal
operation.
• Four fractional output dividers (FODs)
• Independent Spread Spectrum capability on each output
pair
• Four banks of internal non-volatile in-system
programmable or factory programmable OTP memory
Two select pins allow up to 4 different configurations to be
programmed and accessible using processor GPIOs or
bootstrapping. The different selections may be used for
different operating modes (full function, partial function, partial
power-down), regional standards (US, Japan, Europe) or
system production margin testing.
2
• I C serial programming interface
• One reference LVCMOS output clock
• Four universal output pairs:
– Each configurable as one differential output pair or two
LVCMOS outputs
2
The device may be configured to use one of two I C
• I/O Standards:
addresses to allow multiple devices to be used in a system.
– Single-ended I/Os: 1.8V to 3.3V LVCMOS
– Differential I/Os - LVPECL, LVDS and HCSL
Pin Assignment
• Input frequency ranges:
– LVCMOS Reference Clock Input (XIN/REF) – 1MHz to
200MHz
– LVDS, LVPECL, HCSL Differential Clock Input (CLKIN,
CLKINB) – 1MHz to 350MHz
– Crystal frequency range: 8MHz to 40MHz
• Output frequency ranges:
– LVCMOS Clock Outputs – 1MHz to 200MHz
24 23 22 21 20 19
1
2
VDDO
2
18
17
16
– LVDS, LVPECL, HCSL Differential Clock Outputs –
1MHz to 350MHz
CLKIN
CLKINB
XOUT
OUT2
• Individually selectable output voltage (1.8V, 2.5V, 3.3V) for
each output pair
3
4
OUT2B
EPAD
VDDO3
XIN/REF
VDDA
15
14
• Redundant clock inputs with manual switchover
• Programmable loop bandwidth
• Programmable output to output skew
• Programmable slew rate control
• Programmable crystal load capacitance
• Individual output enable/disable
• Power-down mode
5
6
OUT3
13
OUT3B
CLKSEL
8
9
10 11 12
7
• 1.8V, 2.5V or 3.3V core V
, V
DDA
DDD
24-pin VFQFPN
• Available in 24-pin VFQFPN 4mm x 4mm package
• -40° to +85°C industrial temperature operation
5P49V5901 NOVEMBER 11, 2016
1
©2016 Integrated Device Technology, Inc.
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