CSX-252T

TEMPERATURE COMPENSATED CRYSTAL OSCILLATOR (SMD • Ceramic Package) CSX-252T ■FEATURES 7High-density SMD type. 2000pcs/reel Ultra-light weight and ultraminiature size. 7Automatic mounting and reflowable type. 7Low current consumption. 7Small phase noise. 7Available in 1.8V ultralow voltage drive. 7Most appropriate for Cellular phone and other equipment with telecommunication devices. Life-size ■DIMENSION [mm] 2.5±0.15 ＃4 ＃3 ＃3 0.9 ＃4 0.6 0.7 ■SOLDER PAD LAYOUT [mm] 2.0±0.15 0.6 ＃1 1.0 Max. ＃2 ＃2 ＃1 Pin Assignment Pin No. Connection VC or GND ＃1 ＃2 GND ＃3 OUTPUT ＃4 Vcc #1 Function Connection Function VC VC-TCXO GND TCXO 1.0 0.3 1.0 1.2 0.5 1.2 ■STANDARD SPECIFICATIONS Item Nominal Frequency Frequency Stability Operating Temperature Range Storage Temperature Range Supply Voltage Frequency adjustment range Supply current Output Voltage Start-up time Aging (first year) Model CSX-252T 19.2MHz , 26.0MHz , 38.4MHz ±2.5ppm /（−30℃∼＋75℃） −30℃∼＋75℃ −40℃∼＋85℃ f0 △f/f0 TOPR TSTR Vdd △fVC 1.8V ∼ 3.0V ±5% ±4∼±15ppm / Cenrter voltage ±1.0V 2.5mA Max. 0.8Vp-p Min.（10kΩ/ 10pF） 3.5 msec Max. ±1.0ppm / year Max. Idd VOUT TST FA http://www.citizen.co.jp/english/crystal/index.html 28