Read Harman Kardon HK 990 (serv.man2) Service Manual online
83905AM
http://www.icst.com/products/hiperclocks.html
REV. A JANUARY 20, 2005
Integrated
Circuit
Systems, Inc.
Circuit
Systems, Inc.
ICS83905
L
OW
S
KEW
, 1:6 C
RYSTAL
I
NTERFACE
-
TO
-
LVCMOS / LVTTL F
ANOUT
B
UFFER
G
ENERAL
D
ESCRIPTION
The ICS83905 is a low skew, 1-to-6 LVCMOS /
LVTTL Fanout Buffer and a member of the
HiPerClockS™ family of High Performance Clock
Solutions from ICS. The ICS83905 single ended
clock input accepts LVCMOS or LVTTL input lev-
LVTTL Fanout Buffer and a member of the
HiPerClockS™ family of High Performance Clock
Solutions from ICS. The ICS83905 single ended
clock input accepts LVCMOS or LVTTL input lev-
els. The low impedance LVCMOS/LVTTL outputs are designed
to drive 50
to drive 50
Ω series or parallel terminated transmission lines.
The effective fanout can be increased from 6 to 12 by utilizing
the ability of the outputs to drive two series terminated lines.
the ability of the outputs to drive two series terminated lines.
The ICS83905 is characterized at full 3.3V, 2.5V, and 1.8V,
mixed 3.3V/2.5V, 3.3V/1.8V and 2.5V/1.8V output operating
supply mode. Guaranteed output and part-to-part skew char-
acteristics along with the 1.8V output capabilities makes the
ICS83905 ideal for high performance, single ended applica-
tions that also require a limited output voltage.
mixed 3.3V/2.5V, 3.3V/1.8V and 2.5V/1.8V output operating
supply mode. Guaranteed output and part-to-part skew char-
acteristics along with the 1.8V output capabilities makes the
ICS83905 ideal for high performance, single ended applica-
tions that also require a limited output voltage.
B
LOCK
D
IAGRAM
P
IN
A
SSIGNMENT
F
EATURES
• 6 LVCMOS / LVTTL outputs
• Crystal oscillator interface
• Output frequency range: 10MHz to 50MHz
• Crystal input frequency range: 10MHz to 50MHz
• Output skew: 10ps (typical)
• 5V tolerant enable inputs
• Synchronous output enables
• Operating supply modes: Full 3.3V, 2.5V and 1.8V,
• Crystal oscillator interface
• Output frequency range: 10MHz to 50MHz
• Crystal input frequency range: 10MHz to 50MHz
• Output skew: 10ps (typical)
• 5V tolerant enable inputs
• Synchronous output enables
• Operating supply modes: Full 3.3V, 2.5V and 1.8V,
mixed 3.3Vcore/2.5V or1.8V operating supply, and
mixed 2.5V core/1.8V operating supply
mixed 2.5V core/1.8V operating supply
• 0°C to 70°C ambient operating temperature
• Lead-Free package fully RoHS compliant
• Pin compatible to MPC905
• Industrial version available upon request
• Lead-Free package fully RoHS compliant
• Pin compatible to MPC905
• Industrial version available upon request
HiPerClockS™
ICS
ICS83905
16-Lead SOIC
3.9mm x 9.9mm x 1.38mm body package
M Pacakge
Top View
ICS83905
16-Lead TSSOP
4.4mm x 3.0mm x 0.92mm body package
G Pacakge
Top View
SYNCHRONIZE
SYNCHRONIZE
BCLK0
BCLK1
BCLK2
BCLK3
BCLK4
BCLK5
ENABLE 1
ENABLE 2
XTAL_IN
XTAL_OUT
XTAL_OUT
ENABLE 2
GND
BCLK0
V
DD
o
BCLK1
GND
BCLK2
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
16
15
14
13
12
11
10
15
14
13
12
11
10
9
XTAL_IN
ENABLE 1
BCLK5
V
ENABLE 1
BCLK5
V
DDO
BCLK4
GND
BCLK3
V
GND
BCLK3
V
DD
The Preliminary Information presented herein represents a product in prototyping or pre-production. The noted characteristics are based on initial
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
product characterization. Integrated Circuit Systems, Incorporated (ICS) reserves the right to change any circuitry or specifications without notice.
20 19 18 17 16
6 7 8 9 10
1
2
3
4
5
15
14
13
12
11
ENABLE2
XT
AL_OUT
XT
AL_IN
ENABLE1
nc
BCLK5
V
DDO
BCLK4
GND
GND
GND
GND
BCLK0
V
DDO
BCLK1
GND
GND
BCLK2
V
DD
BCLK3
ICS83905
20-Lead VFQFN
4mm x 4mm x 0.9mm
body package
K Package
Top View
1
1
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