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參數資料
型號: TLV2548MPWREP
廠商: TEXAS INSTRUMENTS INC
元件分類: ADC
英文描述: 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝: GREEN, PLASTIC, TSSOP-20
文件頁數: 25/37頁
文件大小: 915K
代理商: TLV2548MPWREP
www.ti.com
SLAS668 – OCTOBER 2009
requires longer input data hold time.
3. For earlier silicon, the delay time is specified as:
MIN
NOM
MAX
UNIT
SDO = 0 pF
16
VCC = 4.5 V
Delay time, delay from SCLK falling edge (FS is
SDO = 100 pF
20
active) or SDO = 100 pF 20 ns SCLK rising edge
ns
SDO = 0 pF
24
(FS = 1) to next SDO valid, td(SCLK-DOV).
VCC = 2.7 V
SDO = 100 pF
30
This is because the SDO is changed at the rising edge in the up mode with a delay. This is the hold time
required by the external digital host processor, therefore, a minimum value is specified. The newer silicon
has been revised with SDO changed at the falling edge in the up mode with a delay. Since at least 0.5 SCLK
exists as the hold time for the external host processor, the specified maximum value helps with the
calculation of the setup time requirement of the external digital host processor.
For an explanation of the DSP mode, reverse the rising/falling edges in item 2. above.
Copyright 2009, Texas Instruments Incorporated
31
Product Folder Link(s): TLV2548-EP
相關PDF資料
PDF描述
TLV2553IDWG4 11-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLV2553IPWR 11-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLV2553IDWRG4 11-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLV2553IPWRG4 11-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
TLV2553IDW 11-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
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