Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

Preview PDF HTML

STLC60134 Scheda tecnica(PDF) 13 Page - STMicroelectronics

Il numero della parte STLC60134
Spiegazioni elettronici  TOSCA INTEGRATED ADSL CMOS ANALOG FRONT-END CIRCUIT
PDF  22 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STLC60134 Scheda tecnica(HTML) 13 Page - STMicroelectronics

Back Button STLC60134 Datasheet HTML 9Page - STMicroelectronics STLC60134 Datasheet HTML 10Page - STMicroelectronics STLC60134 Datasheet HTML 11Page - STMicroelectronics STLC60134 Datasheet HTML 12Page - STMicroelectronics STLC60134 Datasheet HTML 13Page - STMicroelectronics STLC60134 Datasheet HTML 14Page - STMicroelectronics STLC60134 Datasheet HTML 15Page - STMicroelectronics STLC60134 Datasheet HTML 16Page - STMicroelectronics STLC60134 Datasheet HTML 17Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 13 / 22 page
background image
Table 21. VCXO circuit Characteristics
Symbol
Parameter
Min.
Nominal
Max.
Note
fabs
Absolute frequency accuracy
-15ppm
35.328MHz
+15ppm
frange
Frequency Tuning Range
±50ppm
IO
VCXO Output Current
100
µA
Rref = 16.5k
Ω
AVDD = 3.3V
Ii
Reference Input Current
100
µA
1mA
AVDD = 3.3V
N.B: frequency tuning range is proportional to the crystal dynamic capacitance Cm.
DAC
Ct
Rt
AGND
XTALO
XTALI
CP
VCXOUT
IVCO
RREF
Ii
IO=Ii
AVDD
AVDD/22
÷AVDD/2
Filtered VCXO
(se e CTRLIN table)
VCOCX
AVDD
1M
Ω
Clk35
±30%
CS
-1 5V
CTRLIN
8 bits
D98TL364mod
Figure 11. Principle of VCXO control
The tuning must be monotonic with 8-bit resolution with the worst-case tuning step of <2ppm/LSB (8-bit).
The time constant of the tuning must be variable from 5s to 10s through an external capacitor Cs (R =
1M
Ω ±30%). This determines the speed of the VCXO in normal operation (slow speed in ”show time”)
with filtered VCXO. For faster tracking, the previous filter is not used and the speed depends on CtRt.
STLC60134S
13/22



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22


Scheda tecnica Scarica

Go To PDF Page


Link URL



Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   Collegamento alla scheda tecnica    |   scambio Link   |   Ricerca produttore
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com