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參數資料
型號: ADSP-21266SKBCZ-2D
廠商: ANALOG DEVICES INC
元件分類: 數字信號處理
英文描述: SHARC Embedded Processor
中文描述: 16-BIT, 66.67 MHz, OTHER DSP, PBGA136
封裝: ROHS COMPLIANT, MO-205AE, BGA-136
文件頁數: 19/44頁
文件大小: 426K
代理商: ADSP-21266SKBCZ-2D
ADSP-21266
Rev. B
|
Page 19 of 44
|
May 2005
Clock Input
See
Table 11
and
Figure 7
.
Clock Signals
The ADSP-21266 can use an external clock or a crystal. See
CLKIN pin description. The programmer can configure the
ADSP-21266 to use its internal clock generator by connecting
the necessary components to CLKIN and XTAL.
Figure 8
shows
the component connections used for a crystal operating in fun-
damental mode. Note that the 200 MHz clock rate is achieved
using a 12.5 MHz crystal and a PLL multiplier ratio 16:1
(CCLK:CLKIN).
Table 11. Clock Input
Parameter
150 MHz
Min
200 MHz
Min
Unit
Max
Max
Timing Requirements
t
CK
t
CKL
t
CKH
t
CKRF
t
CCLK
1
Applies only for CLKCFG1
0 = 00 and default values for PLL control bits in PMCTL.
2
Applies only for CLKCFG1
0 = 01 and default values for PLL control bits in PMCTL.
3
Any changes to PLL control bits in the PMCTL register must meet core clock timing specification t
CCLK
.
CLKIN Period
CLKIN Width Low
CLKIN Width High
CLKIN Rise/Fall (0.4 V – 2.0 V)
CCLK Period
3
20
1
7.5
1
7.5
1
160
2
80
2
80
2
3
10
15
1
6
1
6
1
5
160
2
80
2
80
2
3
10
ns
ns
ns
ns
ns
6.66
Figure 7. Clock Input
Figure 8. 150 MHz or 200 MHz Operation with a 12.5 MHz
Fundamental Mode Crystal
CLKIN
t
CK
t
CKH
t
CKL
CLKIN
XTAL
C1
C2
X1
NOTE: C1 AND C2 ARE SPECIFIC TO CRYSTAL SPECIFIED FOR X1.
CONTACT CRYSTAL MANUFACTURER FOR DETAILS. CRYSTAL
SELECTION MUST COMPLY WITH CLKCFG1-0 = 10 OR = 01.
1M
相關PDF資料
PDF描述
ADSP-21266SKSTZ-1B SHARC Embedded Processor
ADSP-21266SKSTZ-1C SHARC Embedded Processor
ADSP-21266SKSTZ-2B SHARC Embedded Processor
ADSP-21266SKSTZ-2C SHARC Embedded Processor
ADSP-21266SKSTZ-2D SHARC Embedded Processor
相關代理商/技術參數
參數描述
ADSP-21266SKSTZ-1B 制造商:Analog Devices 功能描述: 制造商:Analog Devices 功能描述:DSP FLOATING PT 32BIT 150MHZ 150MIPS 144LQFP - Trays
ADSP-21266SKSTZ-1C 制造商:Analog Devices 功能描述:DSP Floating-Point 32-Bit 150MHz 150MIPS 144-Pin LQFP 制造商:Analog Devices 功能描述:DSP FLOATING PT 32BIT 150MHZ 150MIPS 144LQFP - Trays
ADSP-21266SKSTZ-1D 功能描述:IC DSP 32BIT 150MHZ 144-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP(數字式信號處理器) 系列:SHARC® 標準包裝:2 系列:StarCore 類型:SC140 內核 接口:DSI,以太網,RS-232 時鐘速率:400MHz 非易失內存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA,FCBGA 供應商設備封裝:431-FCPBGA(20x20) 包裝:托盤
ADSP-21266SKSTZ-2B 制造商:Analog Devices 功能描述:DSP Floating-Point 32-Bit 200MHz 200MIPS 144-Pin LQFP
ADSP21266SKSTZ2C 制造商:Analog Devices 功能描述:
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