DS4000
Digitally Controlled TCXO
www.maxim-ic.com
GENERAL DESCRIPTION
FEATURES
The DS4000 digitally controlled temperature-compen-
sated crystal oscillator (DC-TCXO) features a digital
temperature sensor, one fixed-frequency temperature-
Cꢀ Aging ≤1.0ppm (First Year)
Cꢀ Frequency Stability ±1.0ppm from -40°C to +85°C
Cꢀ Frequency Versus Supply Stability of ±1.0ppm per
Volt
compensated
square-wave
output
(F1),
one
programmable temperature-compensated square-
wave output (F2), and digital communication for
frequency tuning (SDA, SCL).
Base Frequency is Digitally Tunable by ±10ppm
One Fixed-Frequency Output and One
(n + 1) or 2(n + 1) Division of the Base
Frequency Output
Cꢀ Temperature Measurements from -40CL to +85LC
with 10-Bit/+0.25°C Resolution and ±3°C
Accuracy
APPLICATIONS
Reference Oscillators in PLL Circuits
Global Positioning Systems
SATCOM
Cꢀ 2-Wire Serial Interface
Telecom
PIN CONFIGURATION
Wireless Base Stations
TOP VIEW
A
B
C
D
ORDERING INFORMATION
SCL
SDA
6
5
4
3
2
1
F2
PART
DS4000
DS4000N
TEMP RANGE
PIN-PACKAGE
24 BGA
24 BGA
VCC
F1
0°C to +70°C
-40°C to +85°C
A0
GNDOSC
N.C.
VOSC
GND
GND
Selector Guide appears end of data sheet.
GND
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.
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REV: 072403