Timing Requirement:
參數(shù)資料
型號(hào): ADSP-2105BPZ-80
廠商: Analog Devices Inc
文件頁數(shù): 29/64頁
文件大?。?/td> 0K
描述: IC DSP CONTROLLER 16BIT 68PLCC
標(biāo)準(zhǔn)包裝: 19
系列: ADSP-21xx
類型: 定點(diǎn)
接口: 同步串行端口(SSP)
時(shí)鐘速率: 20MHz
非易失內(nèi)存: 外部
芯片上RAM: 3kB
電壓 - 輸入/輸出: 5.00V
電壓 - 核心: 5.00V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 68-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 68-PLCC(24.23x24.23)
包裝: 管件
產(chǎn)品目錄頁面: 738 (CN2011-ZH PDF)
ADSP-21xx
REV. B
–35–
Frequency
12.5 MHz
13.0 MHz
13.824 MHz*
Dependency
Parameter
Min Max
Min
Max
Min
Max
Unit
Timing Requirement:
tSCK
SCLK Period
80
76.9
72.3
ns
tSCS
DR/TFS/RFS Setup before SCLK Low
8
ns
tSCH
DR/TFS/RFS Hold after SCLK Low
10
ns
tSCP
SCLKIN Width
30
28
ns
Switching Characteristic:
tCC
CLKOUT High to SCLKOUT
20
35
19.2 34.2
18.1
33.1
0.25tCK 0.25tCK + 15ns
tSCDE SCLK High to DT Enable
0
ns
tSCDV SCLK High to DT Valid
20
ns
tRH
TFS/RFSOUT Hold after SCLK High
0
ns
tRD
TFS/RFSOUT Delay from SCLK High
20
ns
tSCDH DT Hold after SCLK High
0
ns
tTDE
TFS (Alt) to DT Enable
0
ns
tTDV
TFS (Alt) to DT Valid
18
ns
tSCDD SCLK High to DT Disable
25
ns
tRDV
RFS (Multichannel, Frame Delay Zero)
20
ns
to DT Valid
*Maximum serial port operating frequency is 13.824 MHz for all processor speed grades except the 12.5 MHz ADSP-2101 and 13.0 MHz ADSP-2111.
TIMING PARAMETERS (ADSP-2101/2105/2111/2115/2161/2163)
SERIAL PORTS
CLKOUT
SCLK
TFS
RFS
DR
RFSIN
TFSIN
DT
( ALTERNATE
FRAME MODE )
t
CC
t
CC
t
SCK
t
SCP
t
SCP
t
SCS
t
SCH
t
RD
t
RH
RFSOUT
TFSOUT
t
SCDV
t
SCDE
t
SCDH
t
SCDD
t
TDE
t
TDV
t
RDV
( MULTICHANNEL MODE,
FRAME DELAY 0 {MFD = 0} )
Figure 34. Serial Ports
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