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Número de pieza | ICS661 | |
Descripción | PRECISION AUDIO CLOCK SOURCE | |
Fabricantes | Integrated Device Technology | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de ICS661 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
No Preview Available ! PRECISION AUDIO CLOCK SOURCE
DATASHEET
ICS661
Description
www.datasheet4u.com
The ICS661 provides synchronous clock generation for
audio sampling clock rates derived from an MPEG stream,
or can be used as a standalone clock source with a 27 MHz
crystal. The device uses the latest PLL technology to
provide excellent phase noise and long term jitter
performance for superior synchronization and S/N ratio.
Please contact IDT if you have a requirement for an input
and output frequency not included here - we can rapidly
modify this product to meet special requirements.
Features
• Packaged in 16-pin TSSOP
• Available in Pb (lead) fere package
• Clock or crystal input
• Low phase noise
• Low jitter
• Exact (0 ppm) multiplication ratios
• Reference clock output available
• Support for 256, 384, 512, and 768 times sampling rate
Block Diagram
X2
X1/REFIN
SELIN
S3:0 4
VDD (P2)
Crystal
Oscillator
VDD (P3) VDDO VDDR
REF
GND (P13)
PLL Clock
Synthesis
GND (P6) GND (P5)
CLK
IDT™ / ICS™ PRECISION AUDIO CLOCK SOURCE
1
ICS661
REV D 111804
1 page ICS661
PRECISION AUDIO CLOCK SOURCE
CLOCK SYNTHESIZER
AC Electrical Characteristics
Unless stated otherwise, VDD = 3.3 V ±10%, Ambient Temperature -40 to +85° C
Parameter
Symbol
Conditions
Min. Typ.
www.datasheCetr4yus.ctoaml Frequency
27
Output Clock Rise Time
Output Clock Fall Time
Output Duty Cycle
Jitter, Short term
tOR 20% to 80%, 15 pF load
tOF 80% to 20%, 15 pF load
tOD At VDD/2, 15 pF load
45 49 to 51
Reference clock off
175
Jitter, Short term
Reference clock on
175
Jitter, Long term
Reference clock off; 10
us delay
300
Jitter, Long term
Reference clock on; 10
us delay
300
Single Sideband Phase
Noise
Reference clock off; 10
kHz offset
-110
Single Sideband Phase
Noise
Reference clock on; 10
kHz offset
-110
Actual Mean Frequency
Error versus Target
0
Max.
28
1.5
1.5
55
Units
MHz
ns
ns
%
ps p-p
ps p-p
ps p-p
ps p-p
dBc
dBc
ppm
Thermal Characteristics
Parameter
Symbol Conditions
Thermal Resistance Junction to
Ambient
θJA Still air
θJA 1 m/s air flow
θJA 3 m/s air flow
Thermal Resistance Junction to Case θJC
Min.
Typ.
78
70
68
37
Max.
Units
° C/W
° C/W
° C/W
° C/W
IDT™ / ICS™ PRECISION AUDIO CLOCK SOURCE
5
ICS661
REV D 111804
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet ICS661.PDF ] |
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