32.768kHz

DS32kHz 32.768kHz Temperature-Compensated Crystal Oscillator

Manufacturer

Maxim Integrated

Overview

Part: DS32kHz from Maxim Integrated

Type: Temperature-Compensated Crystal Oscillator (TCXO)

Key Specs:

Output Frequency: 32.768 kHz
Timekeeping Accuracy: ±4 Minutes/Year (-40°C to +85°C)
VCC Operating Voltage: 4.5V to 5.5V
VBAT Operating Voltage: 2.7V to 5.5V
Operating Temperature Range (Commercial): 0°C to +70°C
Operating Temperature Range (Industrial): -40°C to +85°C
Active Battery Current (typ): 1 μA

Features:

Battery Backup for Continuous Timekeeping
No Calibration Required
Low-Power Consumption
Surface Mountable (BGA Package)
UL Recognized

Applications:

GPS Receivers
Telematics
Network Timing and Synchronization in Servers, Routers, Hubs, and Switches
Automatic Power Meters

Package:

14 DIP
16 SO: 0.300"
36 BGA

Features

Accurate to ±4 Minutes/Year (-40°C to +85°C)
Accurate to ±1 Minute/Year (0°C to +40°C)
Battery Backup for Continuous Timekeeping
VBAT Operating Voltage: 2.7V to 5.5V with VCC Grounded
VCC Operating Voltage: 4.5V to 5.5V
Operating Temperature Range: 0°C to +70°C (Commercial) -40°C to +85°C (Industrial)
No Calibration Required
Low-Power Consumption
Surface Mountable Using BGA Package
UL Recognized

Applications

GPS Receivers

Telematics

Network Timing and Synchronization in Servers, Routers, Hubs, and Switches

Automatic Power Meters

Pin Configuration

SO
1
2
3–12, 15, 16
13
14

Figure 2. Delta Time and Frequency vs. Temperature

Electrical Characteristics

(Over the operating range, unless otherwise specified.) (Note 1)

PARAMETER	SYMBOL	CONDITIONS	MIN	TYP	MAX	UNITS
Active Supply Current	ICC	VBAT = 0V or 2.7V ≤ VBAT ≤ 3.5V (Notes 3, 4)		150	220	μA
Battery Input-Leakage Current	IBATLKG	VCC MIN ≤ VCC ≤ VCC MAX	-50		+50	nA
High Output Voltage (VCC)	VOH	IOH = -1.0mA (Note 2)	2.4			V
Low Output Voltage	VOL	IOL = 2.1mA (Note 2)			0.4	V
High Output Voltage (VBAT)	VOH	IOH = -0.1mA (Note 2)	2.4			V
Battery Switch Voltage	VSW	(Note 2)		VBAT		V

Absolute Maximum Ratings

Operating Temperature Range (Noncondensing)
Commercial:…………………………………………………………………………………………………0°C to +70°C
Industrial:……………………………………………………………………………………………………-40°C to +85°C
Storage Temperature Range………………………………………………………………………………….-40°C to +85°C
Soldering Temperature (BGA, SO)……………………….See the Handling, PC Board Layout, and Assembly section.
Soldering Temperature, Leads (DIP)……………………………………………………+260°C for 10 seconds (Note 1)

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.

Thermal Information

PACKAGE TYPE	THETA-JA (°C/W)	THETA-JC (°C/W)
16-pin SO (300 mils)	73	23
36-pin BGA	43.9	18.4

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