DS32KHZ/DIP Maxim Integrated Products, DS32KHZ/DIP Datasheet - Page 7

• Manufacturer Part Number: DS32KHZ/DIP
• Description: IC TCXO 32.768KHZ COM 14-DIP
• Manufacturer: Maxim Integrated Products
• Series: DSr
• Type: TCXOr

Specifications of DS32KHZ/DIP

• Supply Voltage: 5V
• Frequency: 32.768kHz
• Frequency Stability: ±7.5ppm
• Operating Temperature: 0°C ~ 70°C
• Current - Supply (max): 220µA
• Mounting Type: Through Hole
• Size / Dimension: 0.860" L x 0.460" W (21.84mm x 11.68mm)
• Height: 0.275" (6.99mm)
• Package / Case: 14-DIP Module (300 mil)
• Supply Current: 150µA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: DS32KHZDIP

Figure 4 illustrates how a standard 32.768kHz crystal and the DS32kHz should be connected to address the
interchangeable option. Using this connection scheme and the recommended layout provides a solution, which
requires no hardware modifications. Only one device should be used at a time, and both layouts should be located
very close together if the recommended layout is not used.
The DS32kHz I
crystal or resonator. Driving the oscillator circuit with the rail-to-rail output of the DS32kHz can increase the I
I
can be used to reduce the current consumption of a DS32kHz and an RTC. The values of R1 and C1 vary
depending on the RTC used. However, values of 1.0MW and 100pF are recommended as a starting point. R2 is
used to shift the input waveform to the proper level.
Figure 4. DS32kHz Connections
Figure 5. DS32kHz and RTC Connections
BAT
THE STANDARD 32.768kHz CRYSTAL AND THE DS32kHz SHOULD BE CONNECTED TO ADDRESS THE
INTERCHANGEABLE OPTION.
THIS SHOWS A CIRCUIT THAT CAN BE USED TO REDUCE THE CURRENT CONSUMPTION OF A DS32kHz
AND AN RTC.
currents significantly and increase the current consumption of the RTC as well. Figure 5 shows one circuit that
V
V
BAT
CC
CC
and I
DS32kHz
BAT
currents are specified with no output loads. Many RTC oscillator circuits use a quartz
1MΩ
33kΩ
100pF
7 of 10
X1
X2
RTC
CC
and