参数资料
型号: 702075
厂商: Spectrum Digital Inc
文件页数: 21/92页
文件大小: 0K
描述: PLATFORM DEV DGTL VID FOR DM6437
标准包装: 1
系列: DaVinci™
类型: DSP:视频
适用于相关产品: TMS320DM64x
所含物品: 评估板、电源、缆线、软件和说明文档
配用: WM2582-ND - EVALDI EARBUDS TYPE Y
相关产品: 296-34537-5-ND - IC DGTL MEDIA PROCESSOR 361NFBGA
TMS320DM6437ZWTL-ND - IC DGTL MEDIA PROCESSOR 361NFBGA
TMS320DM6437ZWT7-ND - IC DGTL MEDIA PROCESSOR 361NFBGA
TMS320DM6437ZDUQ6-ND - IC DGTL MEDIA PROCESSOR 376-BGA
TMS320DM6437ZDUL-ND - IC DGTL MEDIA PROCESSOR 376-BGA
TMS320DM6437ZDU7-ND - IC DGTL MEDIA PROCESSOR 376-BGA
TMS320DM6435ZWTQ6-ND - IC DGTL MEDIA PROCESSOR 361NFBGA
TMS320DM6435ZWTL-ND - IC DGTL MEDIA PROCESSOR 361NFBGA
TMS320DM6435ZWT7-ND - IC DGTL MEDIA PROCESSOR 361NFBGA
TMS320DM6435ZDUQ6-ND - IC DGTL MEDIA PROCESSOR 376-BGA
更多...
Spectrum Digital, Inc
2.4.1 Audio PLL/VCXO Circuit/PLL1705 Clock Generator
The DM6437 EVM implements a multiple PLL clock generator for creating the Audio
clocks for the board.
In streaming video applications the audio and video sequences can lose
synchronization. The DM6437 uses a VCXO interpolation circuit to incrementally speed
up or slow down the STCLK input to allow for this synchronization to remain locked.
The PWM1 and timer inputs on DM6437 are used to control this feature. The PWM0
pin drives a PICX100-27W Voltage Controlled Oscillator which is and fed back into the
timer input pin.
The STCLK is also a source clock for the PLL1705 programmable PLL device. This
device creates the clocks for the AIC33 Codec, daughter card VIDCLK an AUDIOCLK.
The PLL1705 is programmable via an I 2 C and Expander U13. Software sequencing on
the I/O expander is required to interface correctly to the PLL1705’s programmable
inputs.
The diagram below is a simplified diagram of this clocking scheme.
To I/O Expander
P
P P
L
L
M
S
L L
L L
M M
C D
SCK03
SCK02
SCK01
SCK00
AUDIO_CLK
PLL1705
MCK02
MCK01
VID_CLK
DM6437
XT1
TIMER PWM1
IN
VCXO
Circuit Using
STCLK
PICX100-27
Figure 2-3, Audio PLL/VCXO Circuit/PLL1705 Clock Generator
2-5
相关PDF资料
PDF描述
70G-OAC5AMA OUTPUT MODULE AC G5 20MA 5VDC
70G-OAC5MA OUTPUT MODULE AC G5 20MA 5VDC
70G-OAC5RLY OUTPUT MODULE G5 26MA 5VDC
70GRCK4R-DIN I/O MOUNTING BOARD G5 4POS
70GRCM32-HL I/O MOUNTING BOARD G5 32POS
相关代理商/技术参数
参数描述
70207-FLASHER-1-CIRCUIT 制造商:Cooper Crouse-Hinds 功能描述:
70208 功能描述:NUT DRIVER HEX SOCKET 8MM 6.63" 制造商:klein tools, inc. 系列:- 零件状态:在售 工具类型:螺母扳手 尖头 - 类型:六角插口 尺寸:8mm 长度 - 插片:3.00"(76.2mm) 长度 - 总:6.63"(168.4mm) 特性:表面镀铬,带色码,中空轴 重量:0.15 磅(68.04g) 标准包装:6
7020-8 制造商:Thomas & Betts 功能描述:PHENOLIC SW. BOX RES.
70208 BLU 1/8"X40' 功能描述:SCOTCHCAL STRIPING TAPE 制造商:3m 系列:* 零件状态:在售 标准包装:1
70208-0035 制造商:MOLEX 制造商全称:Molex Electronics Ltd. 功能描述:2.54mm (.100") Pitch C-Grid? Breakaway Header, Dual Row, Vertical, High Temperature, 70 Circuits, Tin (Sn) Plating, 2.72mm (.107") PC Tail Length