Harman Kardon HK 990/230 Service Manual page 13

Integrated
Circuit
Systems, Inc.
G D
ENERAL ESCRIPTION
The ICS83905 is a low skew, 1-to-6 LVCMOS /
ICS
LVTTL Fanout Buffer and a member of the
HiPerClockS™
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 50Ω 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 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.
B D
LOCK IAGRAM
XTAL_IN
XTAL_OUT
ENABLE 1
SYNCHRONIZE
ENABLE 2
SYNCHRONIZE
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.
83905AM
F
• 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,
• 0°C to 70°C ambient operating temperature
• Lead-Free package fully RoHS compliant
• Pin compatible to MPC905
• Industrial version available upon request
P
http://www.icst.com/products/hiperclocks.html
11
L S , 1:6 C
OW KEW
LVCMOS / LVTTL F
EATURES
mixed 3.3Vcore/2.5V or1.8V operating supply, and
mixed 2.5V core/1.8V operating supply
A
IN SSIGNMENT
BCLK0
XTAL_OUT
ENABLE 2
BCLK1
BCLK2
BCLK3
3.9mm x 9.9mm x 1.38mm body package
BCLK4
BCLK5
4.4mm x 3.0mm x 0.92mm body package
GND
GND
BCLK0
V
DDO
BCLK1
ICS83905
I
RYSTAL NTERFACE
B
ANOUT
1
16 XTAL_IN
2
15 ENABLE 1
3
GND 14 BCLK5
4
BCLK0 13 V
DDO
5
V o 12 BCLK4
DD
6
BCLK1 11 GND
7
GND 10 BCLK3
8
BCLK2 9 V
DD
ICS83905
16-Lead SOIC
M Pacakge
Top View
ICS83905
16-Lead TSSOP
G Pacakge
Top View
20 19 18 17 16
1
ICS83905
15
2 20-Lead VFQFN
14
4mm x 4mm x 0.9mm
3
13
body package
4 K Package
12
Top View
5
11
6 7 8 9 10
REV. A JANUARY 20, 2005
- -
TO
UFFER
BCLK5
V
DDO
BCLK4
GND
GND