PI6CX100-27 [PERICOM]
27 MHz 3.3V VCXO for Set-Top Box Applications; 27兆赫3.3V VCXO的机顶盒应用
| 型号： | PI6CX100-27 |
| 厂家： | 
PERICOM SEMICONDUCTOR CORPORATION |
| 描述： | 27 MHz 3.3V VCXO for Set-Top Box Applications |
| 文件： | 总4页 (文件大小：277K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PI6CX100-27
27 MHz 3.3V VCXO for
Set-Top Box Applications
Features
Description
The PI6CX100-27 is a low-cost, high-performance 3.3V VCXO,
designed to replace expensive VCXO modules. The on-chip
Voltage Controlled Crystal Oscillator accepts a 0 to 3.3V input
voltage to cause clocks to vary by ±120ppm. This device uses an
inexpensive external pullable crystal at 27 MHz to produce the
same output frequency.
• 3.3V operating voltage
• Uses an inexpensive external crystal
• On-chip VCXO with pull range of 240ppm
• VCXO tuning voltage from 0 to 3.3V
• 10mA output drive at CMOS levels
• Available in SOIC package
The PI6CX100-27 is designed for Set-Top Box applications.
Block Diagram
Pin Configuration
V
IN
1
X1
X2
NC
V
8
7
6
5
Voltage
Controlled
Crystal
8-Pin
W
NC
Output
Buffer
2
3
4
CLKOUT
X1
X2
V
IN
DD
Oscillator
GND
CLKOUT
Pin Description
Pin Name
X1, X2
Number
Type
Description
Crystal Connection
No Connection
1, 8
2
I
NC
V
3
I
Voltage Input to VCXO
Ground
IN
GND
4
PWR
O
CLKOUT
5
Clock Output
(2)
V
6
PWR
Power Supply
DD
Note:
1. 0.1µF or 0.01µF bypass capacitor is required.
PS8576C
09/22/04
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PI6CX100-27
27 MHz 3.3V VCXO for
Set-Top Box Applications
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
Storage Temperature .........................................–55°C to 125°C
Stresses greater than those listed under MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and func-
tional operation of the device at these or any other conditions above those
indicated in the operational sections of this specification is not implied.
Exposure to absolute maximum rating conditions for extended periods
may affect reliability.
Ambient Temperature ........................................–40°C to 85°C
Supply Voltage V ..............................................–0.5V to 7V
DD
Inputs/Outputs Voltage.............................. –0.5V to V +0.5V
DD
Output Current ..................................................................10mA
Soldering Lead Temperature (10s)...................................260°C
Junction Temperature .......................................–50°C to 150°C
DC Electrical Characteristics
o
(Unless otherwise specified, V = 3.3V, f = 27 MHz, V = 1.65V, Load = 15pF, T = 25 C)
DD
O
IN
A
Symbol
Desciption
Test Condidtion
Min.
3.135
2.8
Typ.
Max.
Units
V
V
Operating Voltage
Output High Volage
Output Low Voltage
Output High Current
Output Low Current
Supply Current
3.3
3.465
DD
OH
I
=-12mA
= -12mA
V
OH
V
I
0.5
-4
OL
OL
I
V
= V -0.5V
-11
12
5
OH
OH
DD
I
V
=0.5V
OL
4
mA
OL
I
C = 15pF
L
DD
I
Output Off-leakage
Negative Resistance
Input Frequency
10
µA
Ω
OZ
R
V
= 0V
IN
-150
27
S
f
20
30
30
MHz
pF
O
C
Output load Capacitance
15
L
o
AC Electrical Characteristics (Unless otherwise specified, f = 27 MHz, Load = 15pF, T = 25 C)
O
A
Symbol
Desciption
Test Condidtion
Min.
Typ.
Max.
6
Units
ns
T T
Rise / Fall Time
0.1V - 0.9V
1.5
R/
f
DD
DD
T
Duty Cycle
0.5V
45
55
%
d
DD
∆f
Rull Range
V
= 0 - V
±120
50
ppm
ps
IN
DD
T
Cycle-to-Cycle Jitter
Linearity
C = 15pf
L
j
Lin
V
V
= 0.1V - 0.9 V
DD
±10
1.5
%
IN
DD
Oscillator Start Time
= 0.9V Trigger
10
ms
DD
DD
PS8576C
09/22/04
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PI6CX100-27
27 MHz 3.3V VCXO for
Set-Top Box Applications
Pullability Characteristics
160
140
120
100
80
60
40
20
ATS
0
-20
-40
-60
. . . . . . . HC49/U
-80
-100
-120
-140
-160
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
VIN (V)
Recommended Crystal Specifications
Description
Crystal
Fundamental
Mode of Oscillation
Frequency Range
Frequency Tolerance
Tenperature plus Aging Stability`
Operating Temperature
C0 /C1
27.000 MHz
±30ppm
±50ppm
-20°C to +70°C
240 (max.)
18pF
Load Capacitance (C )
L
Equivalent Series Resistance (ESR)
35Ω (max.)
Measurement Circuit
X1
X2
NC
NC
DD
V
3.3V
V
V
IN
IN
GND CLKOUT
CL = 15pF
0.01µF
Note:
1. 0.1µF or 0.01µF bypass capacitor is required.
2. Crystal frequency is 27.000 MHz.
PS8576C
09/22/04
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PI6CX100-27
27 MHz 3.3V VCXO for
Set-Top Box Applications
Packaging Mechanical: Plastic 8-pin SOIC (W)
8
3.78
3.99
.149
.157
1
4.80
5.00
.189
.196
0.25
0.50
.0099
.0196
x 45˚
1.35
1.75
.053
.068
.016
.026
REF
0.406
0.660
SEATING PLANE
0-8˚
0.19
0.25
.0075
.0098
0.40 .016
0.10
0.25
.0040
.0098
1.27
.050
.050
BSC
.2284
.2440
5.80
.013
.020
0.330
0.508
1.27
6.20
X.XX
X.XX
DENOTES DIMENSIONS
IN MILLIMETERS
Ordering Information
Ordering Code
Package Code
Package Type
8-pin, 150-mil SOIC
Pb-free & Green 8-pin, 150-mil SOIC
Operating Range
PI6CX100-27W
W
W
Industrial
PI6CX100-27WE
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
2. Number of Transistors = TBD
Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com
PS8576C
09/22/04
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