Philips DVDR1000/001, Service Manual

Page: 280 / 317

Circuit-, IC Descriptions and List of Abbreviations
GB 280 DVDR1000 /0x1 /691 9.
9.10.4 IC7307; IC7308: CY2071AS
CY2071A
EPROM Programmable Clock Generator
i
Features Benefits
Single phase-locked loop architecture Generates a custom frequency from an external source
EPROM programmability Easy customization and fast turnaround
Factory-programmable (CY2071A, CY2071AI) or field-
programmable (CY2071AF, CY2071AFI) device options
Programming support available for all opportunities
Up to three configurable outputs Generates three related frequencies from a single device
Low-skew, low-jitter, high-accuracy outputs Meets critical industry standard timing requirements
Internal loop filter Alleviates the need for external components
Power management (OE)
Supports low-power applications
Frequency select options 3 outputs with 2 user selectable frequencies
Configurable 5V or 3.3V operation Supports industry standard design platforms
8-pin 150-mil SOIC package Industry-standard packaging saves on board space
Selector Guide
Part Number Outputs Input Frequency Range Output Frequency Range Specifics
CY2071A 3 10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock) 500 kHz–130 MHz (5V)
500 kHz–100 MHz (3.3V) Factory Programmable
Commercial Temperature
CY2071AI 3 10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock) 500 kHz–100 MHz (5V)
500 kHz–80 MHz (3.3V) Factory Programmable
Industrial Temperature
CY2071AF 3 10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock) 500 kHz–100 MHz (5V)
500 kHz–80 MHz (3.3V) Field Programmable
Commercial Temperature
CY2071AFI 3 10 MHz–25 MHz (external crystal)
1 MHz–30 MHz (reference clock) 500 kHz–90 MHz (5V)
500 kHz–66.6 MHz (3.3V) Field Programmable
Industrial Temperature
1
2
3
4
5
8
7
6
CLKA
GND
XTALIN
XTALOUT
VDD
OE/FS
CLKC
CLKB
XTALOUT
XTALIN
REFERENCE
OSCILLATOR
PLL
Block
CLKA
CLKB
CLKC
EPROM-
Configurable
Multiplexer
and Divide
Logic
OE / FS
Logic Block Diagram for CY2071A
Top View
8-pin SOIC
Pin Configuration