MAS1178 MAS

Document overview

  • Manufacturer or author: Provided By digicamel.com
  • PDF pages: 5

Technical content

1 (5) DA1178.006

13 July, 2006

IC FOR 10.00 – 20.00 MHz VCXO

  • Low Power
  • Wide Supply Voltage Range
  • Square Wave Output
  • Very High Level of Integration
  • Electrically Trimmable
  • Very Low Phase Noise
  • Low Cost

DESCRIPTION

The MAS1178 is an integrated circuit well suited to build VCXO for mobile communication. The trimming is done by a serial bus and the calibration information is stored in an internal PROM. To build a VCXO only one additional component, a crystal is needed. FEATURES APPLICATIONS

  • Very small size
  • Minor current draw
  • Wide operating temperature range
  • Phase noise <-130 dBc/Hz at 1 kHz offset
  • Square wave output
  • VCXO for mobile phones
  • VCXO for other telecommunications systems BLOCK DIAGRAM This is preliminary information on a new product under development. Micro Analog Systems Oy reserves the right to make any changes without notice. DA CLK PV VSS VC VDD OUT XO1 Digital MAS1178

2 (5) DA1178.006 Pin Description Symbol x-coordinate y-coordinate Power Supply Voltage VDD 182 1317 Serial Bus Clock Input CLK 645 1329 Serial Bus Data Input DA 418 1329 Programming Input PV 876 1311 Voltage Control Input VC 215 213 Crystal Oscillator Output X2 1053 209 Crystal/Varactor Oscillator Input X1 434 209 Power Supply Ground VSS 617 2267 Buffer Output OUT 1218 1329 Note: Because the substrate of the die is internally connected to GND, the die has to be connected to GND or left floating. Please make sure that GND is the first pad to be bonded. Pick-and-place and all component assembly are recommended to be performed in ESD protected area. Note: Pad coordinates are measured from the left bottom corner of the chip to the center of the pads. The coordinates may vary depending on sawing width and location, however, distances between pads are accurate. ABSOLUTE MAXIMUM RATINGS Parameter Symbol Min Max Unit Note Supply Voltage V DD - V SS -0.3 6.0 V Input Voltage V IN V SS -0.3 V DD + 0.3 V 1) Power Dissipation P MAX 100 mW Operating Temperature T OP -35 85 oC Storage Temperature T ST -55 150 oC Note 1: Not valid for programming pin PV RECOMMENDED OPERATION CONDITIONS Parameter Symbol Conditions Min Typ Max Unit Supply Voltage V DD 2.7 2.8 5.5 V Supply Current I dd Vdd = 2.8 Volt 2.3 mA Operable Temperature T C -30 +85 oC Storage Temperature T S Relative humidity = 15%…70% -5 +40 oC

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ELECTRICAL CHARACTERISTICS

Parameter Symbol Min Typ Max Unit Note Frequency Range f o 10.00 20.00 MHz Voltage Control Range V C 0 Vdd Voltage Control Sensitivity V CSENS 30 ppm/V 1) Output Voltage (10 pF, Vdd 2.7V) V out 2.3 Vpp Output Voltage (10 pF, Vdd 5.0V) V out 4.5 Vpp Rise and Fall Time (10-50pF) 10 ns Output Symmetry 40-60 % Trimming CDAC (6 Bit) C X1 C20 C20 + 12 pF 2) Startup Time T START 2 ms Note 1: Vc sense is depending on the crystal used. Note 2: Typ. C20 = 5 pF IC OUTLINES Note 1 : MAS1178 pads are round with 80 µm diameter at opening. Note 2: Pins PV, CLK and DA must not be connected in VCXO module end-user application. VDD OUT X2 VSS X1 VC DA CLK PV MAS1178 1430 µm 1542 µm Die map reference

4 (5) DA1178.006 SAMPLES IN SB20 DIL PACKAGE M AS1178 YYW W XXXXX.X 1 20 GND OUT DA PV Top marking: YYWW = Year, Week XXXXX.X = Lot number VDD CLK VC

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ORDERING INFORMATION

Product Code Product Package Comments MAS1178ATC1 IC FOR VCXO EWS tested wafers 400 µm Di e size 1430 x 1542 µm MAS1178ATF1 IC FOR VCXO EWS tested wafers 254 µm Di e size 1430 x 1542 µm Please contact Micro Analog Systems Oy for other wafer thickness options. LOCAL DISTRIBUTOR MICRO ANALOG SYSTEMS OY CONTACTS Micro Analog Systems Oy Kamreerintie 2, P.O. Box 51 FIN-02771 Espoo, FINLAND Tel. +358 9 80 521 Fax +358 9 805 3213 http://www.mas-oy.com NOTICE Micro Analog Systems Oy reserves the right to make changes to the products contained in this data sheet in order to improve the design or performance and to supply the best possible products. Micro Analog Systems Oy assumes no responsibility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights unless otherwise specified in this data sheet, and makes no claim that the circuits are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Micro Analog Systems Oy makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification.