DS4000 Datasheet, PDF (1/16 Pages) Dallas Semiconductor – Digitally Controlled TCXO

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GENERAL DESCRIPTION
The DS4000 digitally controlled temperature-compen-
sated crystal oscillator (DC-TCXO) features a digital
temperature sensor, one fixed-frequency temperature-
compensated square-wave output (F₁), one
programmable temperature-compensated square-
wave output (F₂), and digital communication for
frequency tuning (SDA, SCL).
APPLICATIONS
Reference Oscillators in PLL Circuits
Global Positioning Systems
SATCOM
Telecom
Wireless Base Stations
ORDERING INFORMATION
PART
DS4000
DS4000N
TEMP RANGE
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
24 BGA
24 BGA
Selector Guide appears end of data sheet.
DS4000
Digitally Controlled TCXO
FEATURES
§ Aging ≤1.0ppm (First Year)
§ Frequency Stability ±1.0ppm from -40°C to +85°C
§ Frequency Versus Supply Stability of ±1.0ppm per
Volt
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
§ Temperature Measurements from -40C° to +85°C
with 10-Bit/+0.25°C Resolution and ±3°C
Accuracy
§ 2-Wire Serial Interface
PIN CONFIGURATION
TOP VIEW
AB
SCL
6
SDA
5
A0
4
GND_OSC
3
N.C.
2
GND
1
CD
F2
V_CC
F1
V_OSC
GND
GND
BGA
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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