Programmable Clock Generator
5P49V5907
DATASHEET
Description
Features
The 5P49V5907 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 with a
total of 7 differential outputs and one reference output
• Supports multiple differential output I/O standards:
– Three universal outputs pairs with each configurable
as one differential output pair (LVDS, LVPECL or
regular HCSL) or two LVCMOS outputs. Frequency of
each output pair can be individually programmed
2
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
or crystal. Two select pins allow up to 4 different
– Four copies of Low Power HCSL(LP-HCSL) outputs.
• Programmable frequency:
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.
– See Output Features and Descriptions for details
• One reference LVCMOS output clock
• High performance, low phase noise PLL, <0.7 ps RMS
typical phase jitter on outputs:
2
The device may be configured to use one of two I C
– PCIe Gen1, 2, 3 compliant clock capability
– USB 3.0 compliant clock capability
– 1 GbE and 10 GbE
addresses to allow multiple devices to be used in a system.
Pin Assignment
• Four fractional output dividers (FODs)
• Independent Spread Spectrum capability from each
fractional output divider (FOD)
• Four banks of internal non-volatile in-system
programmable or factory programmable OTP memory
2
• I C serial programming interface
• Input frequency ranges:
35
40 39 38 37 36
34 33 32 31
30
– LVCMOS Reference Clock Input (XIN/REF) – 1MHz
to 200MHz
1
2
VDDO
2
NC
XOUT
XIN/REF
VDDA
OUT2
29
28
27
26
– Crystal frequency range: 8MHz to 40MHz
OUT2B
3
4
• Output frequency ranges:
VDD
– LVCMOS Clock Outputs – 1MHz to 200MHz
5
6
7
VDDO
VDD
EPAD
– LP-HCSL Clock Outputs – 1MHz to 200MHz
VDD_CORE
OUT3
OUT3B
NC
25
24
OUT7
OUT7B
– Other Differential Clock Outputs – 1MHz to 350MHz
23
22
21
8
OUT6
OUT6B
SD/OE
• Programmable loop bandwidth
• Programmable crystal load capacitance
• Power-down mode
9
10
NC
12
17 18
19 20
13 14 15 16
11
• Mixed voltage operation:
– 1.8V core
– 1.8V VDDO for 4 LP-HCSL outputs
– 1.8V to 3.3V VDDO for other outputs
(3 programmable differential outputs and 1 reference
output)
40-pin VFQFPN
– See Pin Descriptions for details
• Packaged in 40-pin 5mm x 5mm VFQFPN (NDG40)
• -40° to +85°C industrial temperature operation
5P49V5907 REVISION B 07/13/15
1
©2015 Integrated Device Technology, Inc.