ds1088l Maxim Integrated Products, Inc., ds1088l Datasheet - Page 5

• Manufacturer Part Number: ds1088l
• Description: Ds1088l Low-cost Fixed-frequency Econoscillator?
• Manufacturer: Maxim Integrated Products, Inc.

The DS1088L is a low-cost clock generator that pro-
duces a square-wave output without external timing
components. The fixed-frequency oscillator is available
in factory-calibrated frequencies from 312kHz to
133MHz. The DS1088L has a power-down pin for
power-sensitive applications. A block diagram of the
DS1088L is shown in
The internal oscillator frequency is divided by the facto-
ry-programmed prescaler to produce an output fre-
quency of 312kHz to 133MHz. See the Standard
Frequency Options
cies. Contact factory for custom frequencies.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 5
© 2005 Maxim Integrated Products
Figure 1. Block Diagram
GND
PDN
V
PIN
CC
1
2
3
4
5
6
7
8
V
CC
CONTROL
EEPROM
is a registered trademark of Dallas Semiconductor Corporation.
Low-Cost Fixed-Frequency EconOscillator™
NAME
GND
GND
DNC
DNC
OUT
PDN
V
V
CC
CC
80MHz TO 160MHz
CONTROLLED
OSCILLATOR
VOLTAGE-
table
Oscillator Output
Power Supply
Power Supply
Ground
Ground
Power-Down. When the pin is high, the
oscillator is enabled. When the pin is
low, the oscillator is disabled
(power-down mode).
Do Not Connect. The DNC pins are
internally connected to ground.
Do Not Connect
Figure
Detailed Description
for a list of standard frequen-
1.
Pin Description
BY 1, 2, 4...256
PRESCALER
Output Frequency
DS1088L
FUNCTION
Printed USA
OUT
(312kHz
TO 133MHz)
The PDN pin disables the internal oscillator and the
oscillator output for power-sensitive applications. The
power-down pin must remain low for at least two output
frequency cycles plus 10µs for deglitching purposes.
On power-up, the output is disabled until power is sta-
ble and the voltage-controlled oscillator has generated
512 clock cycles.
To achieve the best results when using the DS1088L,
the power supply must be decoupled with 0.01µF and
0.1µF high-quality, ceramic, surface-mount capacitors.
Surface-mount components minimize lead inductance,
which improves performance, and tend to have ade-
quate high-frequency response for decoupling applica-
tions. These capacitors should be placed as close to
the V
TRANSISTOR COUNT: 4507
SUBSTRATE CONNECTED TO GROUND.
For the latest package outline information, go to
www.maxim-ic.com/DallasPackInfo.
is a registered trademark of Maxim Integrated Products, Inc.
CC
and GND pins as possible.
Applications Information
Package Information
Power-Supply Decoupling
Power-Down Mode
Chip Topology