CY7C9235A-270JXC

CY7C9235A-270JXC Datasheet

CY7C9235A

Part	Datasheet
CY7C9235A-270JXC	CY7C9235A-270JXC (pdf)

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CY7C9235A • Fully compatible with SMPTE-259M • Fully compatible with DVB-ASI • Operates from a single +5V supply • 44-pin PLCC package • Encodes both 8- and 10-bit parallel digital streams for 27M characters/sec 270 Mbits/sec serial • Operates with CY7B9234 SMPTE serializer/transmitter • x9 + x4 + 1 scrambler and NRZI encoder may be bypassed for raw data output Functional Description SMPTE-259M Operation The CY7C9235A is a CMOS integrated circuit designed to encode SMPTE-125M bit-parallel digital characters or other data formats using the SMPTE-259M encoding rules. Following encoding, the characters are output as bit-parallel characters ready for serialization. The encoded outputs of the CY7C9235A are designed to be directly mated to a CY7B9234 HOTLink transmitter, which then converts the bit-parallel characters into a SMPTE-259M compatible high-speed serial data stream. SMPTE-259M/DVB-ASI Scrambler/Controller This device performs both TRS sync detection and filtering, data scrambling with the SMPTE-259M x9 + x4 + 1 algorithm, and NRZ-to-NRZI encoding. These functions operate at a 27 MHz character rate. For those systems operating with non-SMPTE-259M compliant video streams or for diagnostic purposes , the scrambler and NRZI encoding functions can be disabled. DVB-ASI Operation The CY7C9235A also contains the necessary multiplexers, control inputs, and outputs, to sequence out a DVB-ASI compliant video stream. DVB-ASI operation is enabled through activation of a single input signal. This allows a single serial output port to support both SMPTE and DVB data streams under software or hardware control. In DVB-ASI mode the CY7C9235A operates with two enable signals ENA and ENN to allow data to be presented from either synchronous clocked or asynchronous FIFOs. When data is not available, the CY7C9235A ensures that the proper fill character K28.5 is generated by the attached CY7B9234 serializer. The CY7C9235A operates from a single +5V supply. It is available in a 44-pin PLCC space saving package. Logic Block Diagram INPUT REGISTER TRS FILTER / DETECTOR SMPTE SCRAMBLER NRZI ENCODER MODE MULTIPLEXOR OUTPUT REGISTER PD9 SVS PD8 PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0 SC/D TRS_FILT SC/D_EN SVS_EN BYPASS DVB_EN ENA ENN CKW OE TRS_DET Q9 SVS Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 SC/D ENA_OUT Cypress Semiconductor Corporation • 3901 North First Street • San Jose, CA 95134 • 408-943-2600 Pin Configuration CY7C9235A Q9 SVS Q8 Q7 Q6 Q5 VSS VCC Q4 Q3 Q2 Q1 TRS_DET TRS_FILT SVS_EN OE VSS BYPASS DVB_EN NC PD9 SVS 6 5 4 3 2 1 44 43 42 41 40 PLCC Top View 18 19 20 21 22 23 24 25 26 27 28 Q0 SC/D ENA_OUT ENN ENA CKW VSS SC/D_EN NC Ordering Information Ordering Code CY7C9235A Package Name J67 Package Type 44-pin Plastic Leaded Chip Carrier Notes All AC parameters are with all outputs switching. Test load b used for this parameter. Test load a used for all other AC parameters. CY7C9235A Max. Unit Operating Range Commercial Page 6 of 8 Package Diagram 44-Lead Plastic Leaded Chip Carrier J67 CY7C9235A 51-85003-*A HOTLink is a registered trademark of Cypress Semiconductor. All product and company names mentioned in this document are the trademarks of their respective holders. Page 7 of 8 Cypress Semiconductor Corporation, The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. CY7C9235A Document History Page Document Title CY7C9235A SMPTE-259M/DVB-ASI Scrambler/Controller Document Number 38-020182 ECN NO. Issue Date Orig. of Change Description of Change 129111 12/09/03 Pin-to-pin compatible with CY7C9235 Page 8 of 8

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CY7C9235A
• Fully compatible with SMPTE-259M
• Fully compatible with DVB-ASI
• Operates from a single +5V supply
• 44-pin PLCC package
• Encodes both 8- and 10-bit parallel digital streams for 27M characters/sec 270 Mbits/sec serial
• Operates with CY7B9234 SMPTE serializer/transmitter
• x9 + x4 + 1 scrambler and NRZI encoder may be bypassed for raw data output

Functional Description

SMPTE-259M Operation

The CY7C9235A is a CMOS integrated circuit designed to encode SMPTE-125M bit-parallel digital characters or other data formats using the SMPTE-259M encoding rules. Following encoding, the characters are output as bit-parallel characters ready for serialization. The encoded outputs of the CY7C9235A are designed to be directly mated to a CY7B9234 HOTLink transmitter, which then converts the bit-parallel characters into a SMPTE-259M compatible high-speed serial data stream.

SMPTE-259M/DVB-ASI Scrambler/Controller

This device performs both TRS sync detection and filtering, data scrambling with the SMPTE-259M x9 + x4 + 1 algorithm, and NRZ-to-NRZI encoding. These functions operate at a 27 MHz character rate. For those systems operating with non-SMPTE-259M compliant video streams or for diagnostic purposes , the scrambler and NRZI encoding functions can be disabled.

DVB-ASI Operation

The CY7C9235A also contains the necessary multiplexers, control inputs, and outputs, to sequence out a DVB-ASI compliant video stream. DVB-ASI operation is enabled through activation of a single input signal. This allows a single serial output port to support both SMPTE and DVB data streams under software or hardware control.

In DVB-ASI mode the CY7C9235A operates with two enable signals ENA and ENN to allow data to be presented from either synchronous clocked or asynchronous FIFOs. When data is not available, the CY7C9235A ensures that the proper fill character K28.5 is generated by the attached CY7B9234 serializer.

The CY7C9235A operates from a single +5V supply. It is available in a 44-pin PLCC space saving package.

Logic Block Diagram

INPUT REGISTER TRS FILTER / DETECTOR SMPTE SCRAMBLER NRZI ENCODER

MODE MULTIPLEXOR OUTPUT REGISTER

PD9 SVS PD8 PD7 PD6 PD5 PD4 PD3 PD2 PD1

PD0 SC/D

TRS_FILT SC/D_EN SVS_EN BYPASS DVB_EN

ENA ENN

CKW OE

TRS_DET

Q9 SVS Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0 SC/D

ENA_OUT

Cypress Semiconductor Corporation
• 3901 North First Street
• San Jose, CA 95134
• 408-943-2600

Pin Configuration

CY7C9235A

Q9 SVS Q8 Q7 Q6 Q5 VSS VCC Q4 Q3 Q2 Q1

TRS_DET TRS_FILT

SVS_EN OE VSS

BYPASS DVB_EN

NC PD9 SVS
6 5 4 3 2 1 44 43 42 41 40

PLCC

Top View
18 19 20 21 22 23 24 25 26 27 28

Q0 SC/D ENA_OUT ENN ENA CKW VSS SC/D_EN NC
Ordering Information
Ordering Code CY7C9235A

Package Name J67

Package Type 44-pin Plastic Leaded Chip Carrier

Notes All AC parameters are with all outputs switching. Test load b used for this parameter. Test load a used for all other AC parameters.

CY7C9235A

Max.

Unit

Operating Range Commercial

Page 6 of 8

Package Diagram
44-Lead Plastic Leaded Chip Carrier J67

CY7C9235A
51-85003-*A

HOTLink is a registered trademark of Cypress Semiconductor. All product and company names mentioned in this document are the trademarks of their respective holders.

Page 7 of 8

Cypress Semiconductor Corporation, The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges.

CY7C9235A

Document History Page

Document Title CY7C9235A SMPTE-259M/DVB-ASI Scrambler/Controller Document Number 38-020182

ECN NO. Issue Date

Orig. of Change

Description of Change
129111 12/09/03

Pin-to-pin compatible with CY7C9235

Page 8 of 8

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Datasheet ID: CY7C9235A-270JXC 508146