^: 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.
DESCRIPTION
The PLL501-22 is a low cost integrated VCXO IC with
power down feature, designed to work with a
fundamental 27MHz crystal in order to provide most
common audio clocks (8.192, 11.2896, 12.288,
16.9344, 16.384, 18.432, 22.5792, and 24.576MHz)
required by sampling rates of 32kHz, 44.1kHz, 48kHz,
64kHz and 96kHz (256, 384 and 512 oversampling
ratios). The audio clock follows the pulled 27MHz
signal of the VCXO. The wide pull-range makes it
ideal for STB and MPEG Video applications.
AUDIO CLOCK SELECTION
S2
0
0
0
0
1
1
1
1
S1
0
0
1
1
0
0
1
1
S0
0
1
0
1
0
1
0
1
ACLK (MHz)
8.192
11.2896
12.288
16.9344
18.432
16.384
22.5792
24.576
BLOCK DIAGRAM
[S2-S0]
Vin
Audio
PLL
ACLK
PDOWN
Xin
Xout
VCXO
27MHz
27MHz
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 02/26/04 Page 1
Preliminary
PLL501-22
27MHz Multiple Output VCXO with Audio Clock
PIN DESCRIPTIONS
Name
XIN
XOUT
VDD
VDD
VIN
GND
GND
PDOWN
S2
ACLK
GND
27MHz
S0
VDD
27MHz
S1
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Type
I
I
P
P
I
Description
Crystal input to be connected to fundamental parallel mode crystal.
(C
L
=9.5pF).
Crystal output connector.
3.3V power supply.
3.3V power supply.
Frequency control input (0V to 3.3V).
Ground.
Ground.
Digital control input. This input powers down the entire chip and tri-states
all outputs when low. 60kΩ internal pull-up.
Digital control input to select audio frequency.
60kΩ internal pull-up.
Audio clock output (see selection table on page 1).
Ground.
27MHz VCXO output.
Digital control input to select audio frequency.
60kΩ internal pull-up.
3.3V power supply.
27MHz VCXO output.
Digital control input to select audio frequency.
60kΩ internal pull-up.
P
P
I
I
O
P
O
I
P
O
I
Notes: I – input pin; P – power supply/ground pin; O – output pin.
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS
Supply Voltage
Input Voltage, dc
Output Voltage, dc
Storage Temperature
Junction Temperature
Lead Temperature (soldering, 10s)
Input Static Discharge Voltage Protection
SYMBOL
V
DD
V
I
V
O
T
S
T
J
MIN.
MAX.
7
UNITS
V
V
V
°C
°C
°C
kV
V
SS
-
0.5
V
SS
-
0.5
-65
V
DD
+
0.5
V
DD
+
0.5
150
125
260
2
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.
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 03/02/04 Page 2
Preliminary
2. Crystal Specifications
PARAMETERS
Crystal Resonator Frequency
Crystal Loading Rating
Crystal Pullability
Recommended ESR
PLL501-22
MAX.
UNITS
MHz
pF
250
30
-
Ω
27MHz Multiple Output VCXO with Audio Clock
SYMBOL
F
XIN
C
L
(xtal)
C
0
/C
1 (xtal)
R
E
CONDITIONS
Parallel Fundamental Mode
At VCON = 1.65V
AT cut
AT cut
MIN.
TYP.
27
9.5
Note:
Crystal Loading rating: 9.5pF is the loading the crystal sees from the VCXO chip at VCON = 1.65V. It is assumed that the crystal will be at
nominal frequency at this load. If the crystal requires more load to be at nominal frequency, the additional load must be added externally. This however
may reduce the pull range.
3. Voltage Control Crystal Oscillator
PARAMETERS
VCXO Stabilization Time *
VCXO Tuning Range
CLK output pullability
Linearity
VCXO Tuning Characteristic
VCON input impedance
VCON modulation BW
0V
≤
VCON
≤
3.3V, -3dB
2000
25
SYMBOL
T
VCXOSTB
CONDITIONS
From power valid
XTAL C
0
/C
1
< 250
0V
≤
VCON
≤
3.3V
MIN.
240
±120
TYP.
10
MAX.
UNITS
ms
ppm
ppm
5
80
10
%
ppm/V
kΩ
kHz
Note:
Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits.
4. General Electrical Specifications
PARAMETERS
Supply Current,
Dynamic (with
Loaded Outputs)
Operating Voltage
Ambient Operating
Temperature
SYMBOL
I
DD
V
DD
T
A
15pF Load
CONDITIONS
MIN.
TYP.
MAX.
TBD
UNITS
mA
V
°C
2.97
0
3.30
3.63
70
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 03/02/04 Page 3
Preliminary
PLL501-22
27MHz Multiple Output VCXO with Audio Clock
5. AC Electrical Specifications
PARAMETERS
Input Crystal Frequency
Output Clock Rise Time
Output Clock Fall Time
Output Clock Duty Cycle
Short Circuit Current
0.8V ~ 2.0V with 10 pF load
0.3V ~ 3.0V with 15 pF load
2.0V ~ 0.8V with 10 pF load
3.0V ~ 0.3V with 15pF load
Measured @ 1.4V
45
3.7
50
±50
3.7
SYMBOL
CONDITIONS
MIN.
TYP.
27
MAX.
1.5
5
1.5
5
55
UNITS
MHz
ns
%
mA
6. Jitter specifications
PARAMETERS
Cycle to Cycle Jitter
Cycle to Cycle Jitter
CONDITIONS
T
cyc-cyc
T
cyc-cyc
FREQUENCY
27MHz
Audio Clock
MIN.
TYP.
MAX.
100
100
UNITS
ps
ps
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 03/02/04 Page 4
Preliminary
PLL501-22
27MHz Multiple Output VCXO with Audio Clock
PACKAGE INFORMATION
16 PIN SSO P ( inch )
Sym bol
A
A1
B
C
D
E
H
L
e
M in.
.053
.004
.008
.007
.189
.150
.228
.016
Nom .
.064
.006
-
-
.193
.154
.236
.025
.025 BAS IC
M ax.
.069
.010
.012
.010
.197
.157
.244
.050
e
B
A1
C
L
A
D
E
H
ORDERING INFORMATION
PART NUMBER
The order number for this device is a combination of the following:
Device number, Package type and Operating temperature range
PLL501-22 X C
PART NUMBER
TEMPERATURE
C=COMMERCIAL
PACKAGE TYPE
X=SSOP
Order Number
PLL501-22 XC
PLL501-22 XC-R
Marking
PLL501-22 XC
PLL501-22 XC
Package Option
SSOP - Tube
SSOP - Tape and Reel
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
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