Clock In and Clock Out Cycle Timing Table 5 and Figure 6 describe clock and reset operations. Com- binations of CLKIN an" />
參數(shù)資料
型號: ADSP-21991BSTZ
廠商: Analog Devices Inc
文件頁數(shù): 16/44頁
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 16BIT 176-LQFP
產(chǎn)品變化通告: Product Discontinuance 27/Oct/2011
標準包裝: 1
系列: ADSP-21xx
類型: 定點
接口: SPI,SSP
時鐘速率: 160MHz
非易失內(nèi)存: 外部
芯片上RAM: 112kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 2.50V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 176-LQFP
供應(yīng)商設(shè)備封裝: 176-LQFP(24x24)
包裝: 托盤
–23–
REV. 0
ADSP-21991
Clock In and Clock Out Cycle Timing
Table 5 and Figure 6 describe clock and reset operations. Com-
binations of CLKIN and clock multipliers must not select
core/peripheral clocks in excess of 160 MHz/80 MHz for the
ADSP-21991BST and 150 MHz/75 MHz for the ADSP-
21991BBC, when the peripheral clock rate is one-half the core
clock rate. If the peripheral clock rate is equal to the core clock
rate, the maximum peripheral clock rate is 80 MHz for the
ADSP-21991BST and 75 MHz for the ADSP-21991BBC. The
peripheral clock is supplied to the CLKOUT pins.
When changing from bypass mode to PLL mode, allow 512
HCLK cycles for the PLL to stabilize.
Table 5. Clock In and Clock Out Cycle Timing
Parameter
Min
Max
Unit
Timing Requirements
tCK
CLKIN Period
1, 2
10
200
ns
tCKL
CLKIN Low Pulse
4.5
ns
tCKH
CLKIN High Pulse
4.5
ns
tWRST
RESET Asserted Pulsewidth Low
200tCLKOUT
ns
tMSS
MSELx/BYPASS Stable Before
RESET Deasserted Setup 40
s
tMSH
MSELx/BYPASS Stable After
RESET Deasserted Hold
1000
ns
tMSD
MSELx/BYPASS Stable After
RESET Asserted
200
ns
tPFD
Flag Output Disable Time After
RESET Asserted
10
ns
Switching Characteristics
tCKOD
CLKOUT Delay from CLKIN
0
5.8
ns
tCKO
CLKOUT Period
3
12.5
ns
1 In clock multiplier mode and MSEL6–0 set for 1:1 (or CLKIN = CCLK), tCK = tCCLK.
2 In bypass mode, tCK = tCCLK.
3 CLKOUT jitter can be as great as 8 ns when CLKOUT frequency is less than 20 MHz. For frequencies greater than 20 MHz, jitter is less than 1 ns.
Figure 6. Clock In and Clock Out Cycle Timing
tCKOD
CLKOUT
MSEL6–0
BYPASS
DF
RESET
CLKIN
tWRST
tCKH
tCK
tCKL
tMSH
tCKO
tPFD
tMSD
tMSS
相關(guān)PDF資料
PDF描述
ADSP-21992YBC IC DSP CTLR 16BIT 196CSPBGA
ADSP-3PARCBF548M01 MODULE BOARD BF548
ADSP-BF506KSWZ-4F IC DSP 12BIT 400MHZ 120LQFP
ADSP-BF518BSWZ-4F4 IC DSP 16/32B 400MHZ LP 176LQFP
ADSP-BF526KBCZ-4C2 IC DSP CTRLR 400MHZ 289CSPBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADSP-21992BBC 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 150MHz 150MIPS 196-Pin CSP-BGA 制造商:Rochester Electronics LLC 功能描述:MIXED SIGNAL DSP W/32K DM RAM& 16K PMRAM - Bulk
ADSP-21992BST 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 160MHz 160MIPS 176-Pin LQFP 制造商:Analog Devices 功能描述:IC MICROCOMPUTER 16-BIT
ADSP-21992BSTZ 功能描述:IC DSP CONTROLLER 16BIT 176LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP(數(shù)字式信號處理器) 系列:ADSP-21xx 標準包裝:40 系列:TMS320DM64x, DaVinci™ 類型:定點 接口:I²C,McASP,McBSP 時鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:160kB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:0°C ~ 90°C 安裝類型:表面貼裝 封裝/外殼:548-BBGA,F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:548-FCBGA(27x27) 包裝:托盤 配用:TMDSDMK642-0E-ND - DEVELPER KIT W/NTSC CAMERA296-23038-ND - DSP STARTER KIT FOR TMS320C6416296-23059-ND - FLASHBURN PORTING KIT296-23058-ND - EVAL MODULE FOR DM642TMDSDMK642-ND - DEVELOPER KIT W/NTSC CAMERA
ADSP-21992YBC 功能描述:IC DSP CTLR 16BIT 196CSPBGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - DSP(數(shù)字式信號處理器) 系列:ADSP-21xx 標準包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI,以太網(wǎng),RS-232 時鐘速率:400MHz 非易失內(nèi)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,F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA(20x20) 包裝:托盤
ADSP-21992YST 制造商:Analog Devices 功能描述: