CX25854-2X 查看數據表（PDF） - Conexant Systems
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CX25854-2X Datasheet PDF : 2 Pages
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Additional Features
There are two variants of the CX25854 offered - one with
the external DDR2 interface, and one without the
interface. When equipped with DDR2, the CX25854
supports frame-interleaved video outputs, as well as a
2x2 CIF tiling mode, in which four CIF images are tiled
into a single D1 stream.
The CX25854 includes programmable motion detection
logic, which can trigger flags or PCIe interrupts when
motion is detected on incoming analog video streams.
The CX25854 contains 48 GPIO pins, which maximize
flexibility and allow customization to a variety of
applications and designs. I2C interfaces and the Maxim
interface are supported via GPIOs.
DDR2 Memory
(Optional)
4 CVBS Inputs
4 Mono/
Baseband
Audio Inputs
Analog Video Decoders
4x Composite NTSC/PAL
1 Input/Decoder
10-bit A/Ds
5-line Comb Filters
Optimized for Low-level
Inputs and Line-locked
Cameras
Independently Scaleable
BT.656/VIP2.0
Luma-Based
Motion Detection
(x4)
DDR2 Interface
(Optional)
16-bit Data DDR2
Required for
Frame-Interleaving and Tiling
DMA Controller
4 Downstream Video DMAs
4 Upstream Video DMAs
Audio DMAs
Digital Video I/O
Configurable:
4x BT.656 @
27, 54 and 108 MHz;
Byte, Line, or
Frame-interleaved
I2S 16-bit @
8, 16, 32, 44.1, or
48 kHz
Multiplexable
Broadband Audio A/Ds
4x Mono
PLL
PCI Express
TL/DLL/MAC
x1 PCI Express
PHY Interface
Digital Audio I/O
3x I2C Master
Maxim CODEC
Host I/F
Interrupts
Data1[7:0], Clk1
Data2[7:0], Clk2
Data3[7:0], Clk3
Data4[7:0], Clk4
Mux-able I2S
Mux-able I2S
I2C
Data and Control
Motion and Board
Level Interrupts
External Crystal
PCI Express Bus
CX25854 Block Diagram
The CX25854-1x (contains DDR2 interface) is offered in a 23mm x 23mm, 288 pin fpBGA package.
The CX25854-2x (no DDR2 interface) is offered in a 14mm X 14mm, 233 pin fpBGA package.
Conexant Product Portfolio
Conexant’s comprehensive product portfolio includes solutions for imaging, audio, video, and embedded-modem applications.
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or omissions and is subject to change without
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AND WITHOUT ANY EXPRESS OR IMPLIED
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ABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NON-INFRINGEMENT.
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indirect, incidental or consequential damages
as a result of its use.
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Doc# PBR-203156
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