|
MAS9270 Datasheet, PDF (1/9 Pages) Micro Analog systems – IC FOR 10.00 - 30.00 MHz VCTCXO | |||
|
DA9270.008
11 September 2006
MAS9270
IC FOR 10.00 â 30.00 MHz VCTCXO
⢠Wide Supply Voltage Range
⢠True Sine Wave Output
⢠Very High Level of Integration
⢠Electrically Trimmable
⢠Very Low Phase Noise
⢠Low Cost
⢠Minimum Operating Temperature â40 °C
DESCRIPTION
The MAS9270 is an integrated circuit well suited to
build VCTCXO for mobile communication.
Temperature calibration is achieved in three
calibration temperatures only. The trimming is done
through a serial bus and the calibration information
is stored in an internal PROM. This means no
rework for trimming is needed.
FEATURES
⢠Very small size
⢠Minor current draw
⢠Wide operating temperature range
⢠Phase noise <-120 dBc/Hz at 100Hz offset
⢠Programmable VC-sensitivity
⢠Minimum Operating Temperature â40 °C for
MAS9270Cxx3
BLOCK DIAGRAM
To build a VCTCXO additionally only crystal is
required. The compensation method is fully analog,
working continuously without generating any steps
or other interference.
APPLICATIONS
⢠VCTCXO for mobile phones
⢠VCTCXO for other telecommunications
systems
DA
CLK
PV
CUB 4
INF 4
SENS 4
f(T)
Σ
f(T)
LIN 8
VC
CDAC1 8
VDD
CDAC2 2
VSS
X2
MAS9270
TE1
T
Vref TMux TE2
OUT
X1
1 (9)
|
▷ |