BCM7320中文资料博通数据手册PDF规格书

SINGLE-CHIP SATELLITE SET-TOP BOX DECODER

The BCM7320is a satellite set-top box system on a chip, integrating Broadcom’s field-proven BCM4500 QPSK demodulator technology, as well as technology derived from Broadcom’s cable products (such as the BCM7115 cable single chip device).

FEATURES

• Dual All-Digital Satellite Receivers

- 1–45 Mbaud variable rate receiver

- Integrated 7-bit A/D converters

- Complies with DVB/DIRECTV®/Digicipher II FE Decoder

• Data Transport Processor

- Support for DIRECTV and MPEG transport streams

- DES/DVB descrambler

- Support for 64 PIDs and 64 section filters

- Support for play/record from/to hard disk

• MPEG-ATSC Compliant Audio/Video Decoders

- MP@ML MPEG-2 video decoder

- Dual decode of MPEG Layer 1 and Layer 2 audio

- Support for Dolby AC-3 and compressed PCM

• Broadcom Graphics Engine (BGE)

- Supports 3 graphics, 1 x video and H/W cursor planes

- 2D video scaling support

- Integrated PAL/NTSC/SECAM encoder

- ITU-656 input support

• MIPS64TM CPU Core @ 200–250 MHz

- IEEE 754 compliant floating point unit

- EJTAG debug support

• IDE Host Adapter

- ATA5 command set, Ultra ATA/66 I/F

SUMMARY OF BENEFITS

• Provides a cost-effective solution for direct broadcast satellite (DBS) applications

• Fully integrated dual QPSK receivers, MPEG-2 A/V decoder, MIPSTM CPU and peripherals for complete set-top box system

- Simultaneously supports two TVs with independent. programming and on-screen graphics displays

• PVR capability enables personal viewing and scheduling, video-on-demand (VOD), and VCR “trick mode” effects on any video stream

- Encryption ensures copy protection of recorded programming content

- Simultaneous support for dual stream Record & Playback

• Advanced 2D graphics system allows applications such as Internet browsers and electronic program guides to deliver studio quality text and graphics on television monitors

• Broadcom-developed device drivers enable rapid software development cycle with support of industry-standard

operating systems

• Subsystems are based on Broadcom’s field-proven production available technologies.