ME83 Datasheet, PDF (1/5 Pages) Mercury United Electronics Inc – Frequency reference for real time clocks

Low Power (nA Current Consumption) 32.768 KHz
ME831, ME832, ME833, ME834 Series
TCXOs
MERCURY
Since 1973
Features:
 ME83x is a 32.768 KHz CMOS output TCXO with a maximum frequency stability of
±5 ppm (±2.62 minutes / year) over -40 to +85°C, much better time-keeping
accuracy than the competition.
 A proprietary temperature compensation technique is applied to the built-in X-cut
32.768 KHz tuning fork crystal and temperature sensor.
 A 400 nA current consumption (average, f_out ≤ 128 Hz, 4 min TMP.) makes it ideal
for battery-operated devices.
 5 x 7x1.8 ceramic SMD package, ideal for new miniaturizing applications.
 Designed for long-term frequency reference applications.
Applications:
 Frequency reference for real time clocks (RTCs)
 Smart metering, data loggers
 Portable instruments
 GPS receivers. Telematics.
 Timing synchronization for networks, servers, hubs, routers and switches
 Timing reference input for various energy metering ICs.
Related Mercury Products:
 If temperature compensation is not required, please use Mercury HA series 32.768K (AT-cut crysta;l uA current
Consumption, ±25/±50/±200 ppm over commercial or industrial temperature ranges ).
 If tighter than ±5 ppm frequency stability is required, such as ±1~±2.5 ppm over -40 to +85°C, please use Mercury
M572T 32.768K TCXO or VM572T 32.768K VCTCXO series (All AT-cut crystals; mA current consumption).
Frequency-Temperature Characteristic
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
Temperature (°C)
-150
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
ME83x, Temperature
Compensated.
∆f / f = ±5 ppm max.
Not Temperature
Compensated.
∆f / f = -0.035(T_o-25)²
MERCURY www.mercury-crystal.com
Taiwan: TEL [phone], FAX [phone], e-mail: [e-mail]
U.S.A.: TEL [phone], FAX [phone], e-mail: [e-mail]
MERCURY
Page 1 of 5
Date: June 30, 2014
Revision: 6