DataSheet.in

DSC2011 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Low-Jitter Configurable Dual CMOS Oscillator - Micrel Semiconductor

भाग संख्या DSC2011
समारोह Low-Jitter Configurable Dual CMOS Oscillator
मैन्युफैक्चरर्स Micrel Semiconductor 
लोगो Micrel Semiconductor लोगो 
पूर्व दर्शन
1 Page
		
<?=DSC2011?> डेटा पत्रक पीडीएफ

DSC2011 pdf
DSC2011
Low-Jitter Configurable Dual CMOS Oscillator
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Pin Name
Enable
NC
O2S0
GND
FS0
FS1
FS2
Output1
O1S0
O1S1
Output2
VDD2
VDD
O2S1
Pin Type
I
NA
I
Power
I
I
I
O
I
I
O
Power
Power
I
Description
Enables outputs when high and disables when low
Leave unconnected or grounded
Least significant bit for drive strength selection for Output 2
Ground
Least significant bit for frequency selection
Middle bit for frequency selection
Most significant bit for frequency selection
CMOS output 1
Least significant bit for drive strength selection for output 1
Most significant bit for drive strength selection for output 1
CMOS output 2
Power Supply for Output 2
Power Supply
Most significant bit for drive strength selection for output 2
Operational Description
The DSC2011 is a dual output CMOS oscillator
consisting of a MEMS resonator and a support
PLL IC. The two CMOS outputs are generated
through independent 8-bit programmable
dividers from the output of the internal PLL.
For temp ranges up to Industrial, two
constraints are imposed on the output
frequencies: 1) f2=M x f1/N, where M and N
are even integers between 4 and 254, 2)
1.2GHz < N x f2 < 1.7GHz. Please consult
factory for acceptable frequency combinations
for other temp ranges.
The actual frequencies output by the DSC2011
are controlled by an internal pre-programmed
memory (OTP). This memory stores all
coefficients required by the PLL for up to eight
different frequency combinations. Three
control pins (FS0 FS2) select the output
frequency combination. Discera supports
customer defined versions of the DSC2011.
Standard frequency options are described in in
the following sections.
The DSC2011 has independent control of the
output voltage levels of the two outputs. The
high voltage level of Output 1 is equal to the
main supply voltage, VDD (pin 13). VDD2
(pin 12) sets the high voltage level of Output
2. VDD2 must be equal to or less than VDD at
all times to insure proper operation. VDD2
can be as low as 1.65V.
When Enable (pin 1) is floated or connected to
VDD, the DSC2011 is in operational mode.
Driving Enable to ground will tri-state both
output drivers (hi-impedance mode).
The DSC2011 has programmable output drive
strength for each output. Using two control
pins (OXS0-OXS1) for each output, the drive
strength can be independently adjusted to
match circuit board impedances to reduce
power supply noise, overshoot/undershoot
and EMI. Table 1 displays typical rise / fall
times for the output with a 15pf load
capacitance as a function of these control pins
at VDD=3.3V and room temperature.
Table 1. Rise/Fall times for drive strengths
tr (ns)
tf (ns)
Output Drive Strength Bits
[OXS1, OXS0] - Default [11]
00 01 10 11
1.6 1.4 1.2 1.1
2.4 2.2 1.5 1.4
_____________________________________________________________________________________________________________________________ _________________
DSC2011
Page 2
MK-Q-B-P-D-12042602-2

विन्यास 6 पेज
डाउनलोड[ DSC2011 Datasheet.PDF ]


शेयर लिंक


अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
DSC2010Low-Jitter Configurable CMOS OscillatorMicrel Semiconductor
Micrel Semiconductor
DSC2010FE2-B0003Configurable Clock GeneratorMicrel
Micrel


भाग संख्याविवरणविनिर्माण
30L120CTSchottky RectifierPFC Device
PFC Device
AT28C010-12DKSpace 1-MBit (128K x 8) Paged Parallel EEPROMATMEL
ATMEL
B20NM50FDN-CHANNEL POWER MOSFETSTMicroelectronics
STMicroelectronics
D8442SD844SavantIC
SavantIC
FAE391-A20AM/FM Automotive Electronic TunerMitsumi
Mitsumi


Index : 0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z



www.DataSheet.in    |   2017   |  संपर्क   |   खोज     |   English