Programmable Oscillator
SiT1534
Ultra-Small, Ultra-Low Power 1 Hz – 32.768 kHz Programmable Oscillator
Features
◼ Factory programmable from 32....
Description
SiT1534
Ultra-Small, Ultra-Low Power 1 Hz – 32.768 kHz Programmable Oscillator
Features
◼ Factory programmable from 32.768 kHz down to 1 Hz ◼ <20 ppm frequency tolerance ◼ Smallest footprint in chip-scale (CSP): 1.5 x 0.8 mm ◼ Pin-compatible to 2.0 x 1.2 mm XTAL SMD package ◼ Ultra-low power: <1 µA ◼ Vdd supply range: 1.5 V to 3.63 V over -55°C to +85°C ◼ Supports low-voltage battery backup from a coin cell or
supercap ◼ Oscillator output eliminates external load caps ◼ Internal filtering eliminates external Vdd bypass cap ◼ NanoDrive™ programmable output swing for lowest power ◼ Pb-free, RoHS and REACH compliant
Applications
◼ Mobile Phones ◼ Tablets ◼ Health and Wellness Monitors ◼ Fitness Watches ◼ Sport Video Cams ◼ Wireless Keypads ◼ Ultra-Small Notebook PC ◼ Pulse-per-Second (pps) Timekeeping ◼ RTC Reference Clock ◼ Battery Management Timekeeping
Electrical Specifications
Table 1. Electrical Characteristics
Parameter
Symbol Min.
Programmable Output Frequency
1.00
Typ.
Max.
Unit
Frequency and Stability
32768.0
Hz
Condition Factory programmed between 1 and 32.768 kHz in powers of 2
Frequency Tolerance[1] Frequency Stability[2]
25°C Aging
F_tol F_stab
-1
Frequency Stability
20
ppm
75
ppm
100
150
250
1
ppm
TA = 25°C, post reflow, includes underfill, Vdd: 1.5 V – 3.63 V TA = -10°C to +70°C, Vdd: 1.5 V – 3.63 V TA = -40°C to +85°C, Vdd: 1.5 V – 3.63 V TA = -55°C to +85°C, Vdd: 1.5 V – 3.63 V TA = -10°C to +70°C, Vdd: 1.2 V – 1.5 V 1st Year
Operati...
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