MAS1178 Micro Analog systems, MAS1178 Datasheet

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MAS1178

Manufacturer Part Number
MAS1178
Description
IC FOR 10.00 - 20.00 MHz VCXO
Manufacturer
Micro Analog systems
Datasheet
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.
FEATURES
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.
Very small size
Minor current draw
Wide operating temperature range
Phase noise <-130 dBc/Hz at 1 kHz offset
Square wave output
CLK
VDD
DA
VC
PV
VSS
Digital
6
IC FOR 10.00 – 20.00 MHz VCXO
X1
APPLICATIONS
To build a VCXO only one additional component, a
crystal is needed.
• Low Power
• Wide Supply Voltage Range
• Square Wave Output
• Very High Level of Integration
• Very Low Phase Noise
• Low Cost
Electrically Trimmable
VCXO for mobile phones
VCXO for other telecommunications systems
XO1
X2
MAS1178
OUT
MAS1178
13 July, 2006
DA1178.006
1 (5)

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MAS1178 Summary of contents

Page 1

... Micro Analog Systems Oy reserves the right to make any changes without notice. 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. FEATURES Very small size • ...

Page 2

PIN DESCRIPTION Pin Description Power Supply Voltage Serial Bus Clock Input Serial Bus Data Input Programming Input Voltage Control Input Crystal Oscillator Output Crystal/Varactor Oscillator Input Power Supply Ground Buffer Output Note: Because the substrate of the die is internally ...

Page 3

... Trimming CDAC (6 Bit) Startup Time Note 1: Vc sense is depending on the crystal used. Note 2: Typ. C20 = OUTLINES Die map reference 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. Symbol Min Typ f 10 ...

Page 4

SAMPLES IN SB20 DIL PACKAGE GND VDD Top marking YYWW = Year, Week XXXXX.X = Lot number 16 CLK ...

Page 5

... ORDERING INFORMATION Product Code Product MAS1178ATC1 IC FOR VCXO MAS1178ATF1 IC FOR VCXO MAS1178 IC FOR VCXO 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 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 ...

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