CY2071A General Description
The CY2071A is a general-purpose clock synthesizer designed for use in applications such as modems, disk drives, CD-ROM drives, video CD players, games, set-top boxes, and data/telecommunications. The device offers up to three configurable clock outputs in an 8-pin, 150-mil SOIC package and can operate off either a 3.3V or 5V power supply. The on-chip reference oscillator is designed for 10-MHz to 25-MHz crystals.
Alternatively, an external reference clock of frequency between 1 MHz and 30 MHz can be used.
The CY2071A has one PLL and outputs three factory-EPROM configurable clocks: CLKA, CLKB, and CLKC. The output clocks can originate either from the PLL or the reference, selected dividers thereof. Additionally, pin 8 can be configured to be an Output Enable or a Select input.
The CY2071A can replace multiple Metal Can Oscillators (MCO) in a synchronous system, providing cost and board space savings to the manufacturer. Hence, these devices are ideally suited for applications that require multiple, accurate,and stable clocks synthesized from low-cost generators small packages. A hard-disk drive is an example of such an application. In this case, CLKA drives the PLL in the Read Controller, while CLKB and CLKC drive the MCU and associated sequencers.
CY2071A Maximum Ratings
Supply Voltage ...............................................0.5V to +7.0V
DC Input Voltage ..................................... 0.5V to VDD+0.5V
Storage Temperature ................................. 65°C to +150°C
Max. Soldering Temperature (10 sec) ..........................260°C
Junction Temperature...................................................150°C
Static Discharge Voltage............................................ >2000V
CY2071A Features
·Single phase-locked loop architecture
·EPROM programmability
·Factory-programmable (CY2071A, CY2071AI) or fieldprogrammable (CY2071AF, CY2071AFI) device options
·Up to three configurable outputs
·Low-skew, low-jitter, high-accuracy outputs
·Internal loop filter
·Power management (OE)
·Frequency select options
·Configurable 5V or 3.3V operation
·8-pin 150-mil SOIC package
CY2071A Connection Diagram
Map list: ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789All