XU Family of Low Phase Noise
Quartz-based PLL Oscillators
XU
Datasheet
Description
Features
The XU devices are low phase noise quartz-based PLL oscillators
supporting a large range of frequencies and output interface
types. These devices are designed to operate at three different
power supplies and are available in multiple package sizes as well
as temperature grades.
▪ Frequency range: 0.016MHz to 1500MHz
▪ Output types: LVDS, LVPECL, HCSL, LVCMOS
▪ Supply voltage options: 1.8V, 2.5V, or 3.3V
▪ Phase jitter (1.875MHz to 20MHz): 100fs typical
▪ Phase jitter (12kHz to 20MHz): 300fs typical
▪ Package options:
With a patented one-time program (OTP) allowing for infinite
memory shelf life, the XU devices can be programmed to generate
an output frequency from 16kHz to 1500MHz with a resolution as
low as 1Hz accuracy. The configuration capability of this family of
devices allows for fast delivery times for both sample and large
production orders.
— 5.0 × 3.2 × 1.2 mm
— 7.0 × 5.0 × 1.3 mm
▪ Operating temperature: -20°C to +70°C
— Frequency stability options: ±20, ±25, ±50, or ±100 ppm
▪ Operating temperature: -40°C to +85°C
— Frequency stability options: ±25, ±50, or ±100 ppm
▪ Operating temperature: -40°C to +105°C
— Frequency stability options: ±50 or ±100 ppm
Pin Assignments
E/D 1
NC
4 VDD
NC
E/D / NC 1
VDD
OUT2
OUT
6
5
4
NC / E/D
GND
2
3
GND
2
3 OUT
Table 1. 6-pin Package
Table 2. 4-pin Package
Pin # Pin Name
Description
Pin # Pin Name
Description
E/D
NC
Enable/Disable [a,b]
No connect
1
2
3
4
E/D
GND
OUT
VDD
Enable/Disable [a,b]
Connect to ground
Output
1
NC
E/D
No connect
2
Enable/Disable [a,b]
Supply voltage
3
4
5
6
GND
OUT
OUT2
VDD
Connect to ground
Output
[a] Pulled high internally = output enabled.
[b] Low = output disabled.
Complementary output
Supply voltage
See Ordering Information for more details.
©2018 Integrated Device Technology, Inc.
1
June 25, 2018