Preliminary
PLL601-27
27MHz XO IC with Audio Clock (for Set Top Boxes & MPEG Video)
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 11/08/04 Page 1
FEATURES
27MHz reference output (from 27MHz crystal
input or clock input).
Selectable Audio Clocks supporting:
F
s
of 32kHz, 44.1kHz, 48kHz, 64kHz and 96kHz
8.192MHz, 11.2896MHz, 12.288MHz, and
24.576MHz audio frequencies
On-the-fly switching of the audio frequency.
3.3V Operating Voltage.
Available in 8-Pin SOIC.
DESCRIPTION
The PLL601-27 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, it provides the most common audio clocks
(8.192, 11.2896, 12.288, and 24.576MHz) required by
sampling rates of 32kHz, 44.1kHz, 48kHz, 64kHz and
96kHz, making the chip ideal for STB and MPEG
Video applications.
PACKAGE PIN CONFIGURATION
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.
AUDIO CLOCK SELECTION
S1 S0
ACLK (MHz)
0 0
8.192
0 1
11.2896
1 0
12.288
1 1
24.576
BLOCK DIAGRAM
Xout
27MHz
Xin
[S1-S0]
Audio
PLL
XO
ACLK
PLL601-
27
1
2
3
4
5
6
7
8
XOUT
VDD
GND
27MHz
XIN/FIN
S1^
ACLK
S0^
Preliminary
PLL601-27
27MHz XO IC with Audio Clock (for Set Top Boxes & MPEG Video)
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 11/04/04 Page 2
PIN DESCRIPTIONS
Name Pin
# Type
Description
XIN 1 I
Crystal input to be connected to fundamental parallel mode crystal. (C
L
=15
pF) or clock input.
VDD 2 P
Power
supply.
GND 3 P
Ground.
27MHz 4 O
27MHz
reference
output.
ACLK
5
O
Audio clock output (see selection table on page 1).
S1 6 I
Digital control input to select audio frequency.
60k
internal pull-up.
S0 7 I
Digital control input to select audio frequency.
60k
internal pull-up.
XOUT 8 I
Crystal
output.
Notes: I input pin; P power supply/ground pin.
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS SYMBOL
MIN.
MAX.
UNITS
Supply Voltage
V
DD
4.6 V
Input Voltage, dc
V
I
-0.5
V
DD
+0.5 V
Output Voltage, dc
V
O
-0.5
V
DD
+0.5 V
Storage Temperature
T
S
-65 150
C
Ambient Operating Temperature*
T
A
-40 85
C
Junction Temperature
T
J
125
C
Lead Temperature (soldering, 10s)
260
C
ESD Protection, Human Body Model
2
kV
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.
2. Crystal Specifications
PARAMETERS SYMBOL CONDITIONS MIN.
TYP.
MAX.
UNITS
Crystal Resonator Frequency
F
XIN
Parallel Fundamental Mode
27
MHz
Crystal Loading Rating
C
L (xtal)
15
pF
Recommended ESR
R
E
AT cut
30
Preliminary
PLL601-27
27MHz XO IC with Audio Clock (for Set Top Boxes & MPEG Video)
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 11/04/04 Page 3
3. General Electrical Specifications
PARAMETERS SYMBOL
CONDITIONS
MIN. TYP. MAX. UNITS
Supply Current,
Dynamic (with
Loaded Outputs)
I
DD
15pF Load
20
30
mA
Operating Voltage
V
DD
2.97 3.30 3.63 V
4. AC Electrical Specifications
PARAMETERS SYMBOL CONDITIONS MIN.
TYP.
MAX.
UNITS
Input Crystal Frequency
27
MHz
0.8V ~ 2.0V with 10 pF load
1.5
Output Clock Rise Time
0.3V ~ 3.0V with 15 pF load
2.4
5
2.0V ~ 0.8V with 10 pF load
1.5
Output Clock Fall Time
3.0V ~ 0.3V with 15pF load
2.4
5
ns
Output Clock Duty Cycle
Measured @ 1.4V
45
50
55
%
Short Circuit Current
50
mA
5. Jitter Specifications
PARAMETERS CONDITIONS
FREQUENCY MIN. TYP. MAX. UNITS
Cycle to Cycle Jitter
T
cyc-cyc
27MHz
100
ps
Cycle to Cycle Jitter
T
cyc-cyc
Audio Clock
150
ps
Preliminary
PLL601-27
27MHz XO IC with Audio Clock (for Set Top Boxes & MPEG Video)
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 11/04/04 Page 4
PACKAGE INFORMATION
ORDERING INFORMATION
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.
C
L
A
E
H
D
A1
e
B
8 PIN SOIC (in mm)
Symbol
Min.
Max.
A
1.47
1.73
A1
0.10
0.25
B
0.33
0.51
C
0.19
0.25
D
4.80
4.95
E
3.80
4.00
H
5.80
6.20
L
0.38
1.27
e
1.27 BSC
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
PLL601-27 X X X X
Order Number
Marking
Package Option
PLL601-27SC
P601-27SC
SOIC - Tube
PLL601-27SC-R
P601-27SC
SOIC - Tape and Reel
PLL601-27SCL
P601-27SCL
SOIC - Tube
PLL601-27SCL-R
P601-27SCL
SOIC - Tape and Reel
PART NUMBER
TEMPERATURE
C=COMMERCIAL, I=INDUSTRIAL
PACKAGE TYPE
S=SOIC
NONE=NORMAL PACKAGE
L=GREEN PACKAGE
NONE= TUBE
R=TAPE AND REEL
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