Preliminary
PLL601-26
Audio Clock Generator
FEATURES
•
Supports the following output frequencies
o
12.288MHz audio clock output
o
24.576MHz audio clock output
o
27MHz reference output
•
Accepts Crystal or reference clock inputs
o
Fundamental crystal: 27MHz
o
Reference input: 27MHz
•
On-the-fly switching of the two audio frequencies
(12.288MHz, and 24.576MHz).
•
Accepts <1.0V reference signal input voltage
•
Single 2.5V or 3.3V ± 10% power supply
•
Available in 8-Pin SOIC GREEN/RoHS compliant
Package.
PACKAGE PIN CONFIGURATION
XIN/FIN
VDD
GND
27MHz
1
2
3
4
8
7
6
5
XOUT
FSEL^
DNC
ACLK
Note:
^: Internal pull-up resistor. The internal pull-up resistor
results in a default high value when no pull-down resistor is
connected to this pin.
PLL601-26
DESCRIPTION
The PLL601-26 is a low cost integrated XO IC
designed to work with a fundamental 27MHz crystal
or a clock input. In addition to a 27MHz clock
reference output, it provides two selectable audio
frequencies (12.288MHz, and 24.576MHz), making
the chip ideal for handheld, STB and MPEG Video
applications. Additional system frequencies can also
be supported by cascading the PLL601-26 with
PhaseLink’s QTC programmable clock family.
AUDIO CLOCK SELECTION
FSEL
0
1(Default)
ACLK (MHz)
12.288
24.576
BLOCK DIAGRAM
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991
www.phaselink.com
Rev 11/28/05 Page 1
Preliminary
PLL601-26
Audio Clock Generator
PIN DESCRIPTIONS
Name
XIN/FIN
VDD
GND
27MHz
ACLK
DNC
FSEL
XOUT
Pin #
1
2
3
4
5
6
7
8
Type
I
P
P
O
O
I
I
I
Description
27Mhz Crystal or Reference input.
Power supply connection.
Ground connection.
27MHz reference output.
Audio clock output (see selection table on page 1).
Do Not Connect.
On-The-Fly audio frequency Switching (selector) Input. This pin has an
internal 60 KΩ pull up resistor.
Crystal output. Do Not Connect if reference input is used.
Notes: I – Input pin; O – Output pin; P – power supply/ground pin.
ELECTRICAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
PARAMETERS
Supply Voltage Range
Input Voltage Range
Output Voltage Range
Soldering Temperature (Green package)
Storage Temperature
Ambient Operating Temperature
T
S
-65
0
SYMBOL
V
DD
V
I
V
O
MIN.
MAX.
4.6
V
DD
+
0.5
V
DD
+
0.5
260
150
+70
UNITS
V
V
V
°C
°C
°C
-
0.5
-
0.5
-
0.5
Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent
damage to the device and affect product reliability. These conditions represent a stress rating only, and functional operations of the
device at these or any other conditions above the operational limits noted in this specification is not implied.
*
Note:
Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade only.
AC SPECIFICATIONS
PARAMETERS
Crystal Input Frequency(XIN)
Input (FIN) Frequency
Input (FIN) Signal Amplitude
Output Rise Time
Output Fall Time
Duty Cycle
Internally AC coupled
15pF Load, 10/90%VDD
15pF Load, 90/10%VDD
At VDD/2
45
0.9
2.5
2.5
50
CONDITIONS
Fundamental Crystal
MIN.
TYP.
27
27
MAX.
UNITS
MHz
MHz
VDD
3.5
3.5
55
Vpp
ns
ns
%
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
www.phaselink.com
Rev 11/28/05 Page 2
Preliminary
PLL601-26
Audio Clock Generator
DC SPECIFICATIONS
PARAMETERS
Supply Current, Dynamic, with
Loaded Outputs
Operating Voltage
Output Low Voltage
Output High Voltage
Output Current
Short-circuit Current
SYMBOL
I
DD
V
DD
V
OL
V
OH
I
OSD
I
S
CONDITIONS
At 27MHz, load=15pF
MIN.
TYP.
MAX.
15
UNITS
mA
V
V
V
2.25
I
OL
= +4mA
I
OH
= -4mA
V
OL
= 0.4V, V
OH
= 2.4V
±50
V
DD
–
0.4
3.63
0.4
10
mA
mA
CRYSTAL SPECIFICATIONS
PARAMETERS
Fundamental Crystal Resonator Frequency
Crystal Loading Rating
Maximum Sustainable Drive Level
Operating Drive Level
Crystal Shunt Capacitance
Effective Series Resistance, Fundamental, 27MHz
Note:
A detailed crystal specification document is also available for this part
SYMBOL
F
XIN
C
L (xtal)
MIN.
TYP.
27
16
MAX.
UNITS
MHz
pF
µW
µW
500
100
C0
ESR
6
30
pF
Ω
JITTER SPECIFICATIONS
PARAMETERS
Cycle to Cycle Jitter
Cycle to Cycle Jitter
CONDITIONS
T
cyc-cyc
T
cyc-cyc
FREQUENCY
27MHz
Audio Clock
MIN.
TYP.
300
150
MAX.
UNITS
ps
ps
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
www.phaselink.com
Rev 11/28/05 Page 3
Preliminary
PLL601-26
Audio Clock Generator
PACKAGE DRAWINGS (GREEN PACKAGE COMPLIANT)
8 PIN SOIC (in mm)
Symbol
A
A1
B
C
D
E
H
L
e
Min.
Max.
1.47
1.73
0.10
0.25
0.33
0.51
0.19
0.25
4.80
4.95
3.80
4.00
5.80
6.20
0.38
1.27
1.27 BSC
E
H
D
A
A1
e
B
C
L
ORDERING INFORMATION
For part ordering, please contact our Sales Department:
47745 Fremont Blvd., Fremont, CA 94538, USA
Tel: (510) 492-0990 Fax: (510) 492-0991
PART NUMBER
The order number for this device is a combination of the following:
Device number, Package type and Operating temperature range
PLL601-26 X X X-R
PART NUMBER
NONE= TUBE
R=TAPE AND REEL
NONE=NORMAL PACKAGE
L=GREEN PACKAGE
PACKAGE TYPE
S=SOIC
TEMPERATURE
C=COMMERCIAL,
I=INDUSTRIAL
Part / Order Number
PLL601-26SC
PLL601-26SC-R
PLL601-26SCL
PLL601-26SCL-R
Marking
P601-26SC
P601-26SC
P601-26SCL
P601-26SCL
8-Pin
8-Pin
8-Pin
8-Pin
Package Option
SOIC
SOIC
SOIC
SOIC
(Tube)
(Tape and Reel)
(Tube), GREEN
(Tape and Reel), GREEN
PhaseLink Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information
furnished by Phaselink is believed to be accurate and reliable. However, PhaseLink makes no guarantee or warranty concerning the accuracy of said
information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product.
LIFE SUPPORT POLICY:
PhaseLink’s products are not authorized for use as critical components in life support devices or systems without the
express written approval of the President of PhaseLink Corporation.
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
www.phaselink.com
Rev 11/28/05 Page 4
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