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參數(shù)資料
| 型號(hào)： | WM2638ID |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | TVS UNI 225W 6V PWRDI 123 SMD |
| 中文描述： | 雙路12位串行輸入電壓輸出DAC，帶有內(nèi)部參考 |
| 文件頁(yè)數(shù)： | 5/11頁(yè) |
| 文件大?。?/td> | 360K |
| 代理商： | WM2638ID |
WM2638
Production Data
WOLFSON MICROELECTRONICS LTD
PD Rev 1.0 July 99
5
SERIAL INTERFACE
NCS
SCLK
DIN
D15
D14
D13
D12
D11
D0
t
SUCSS
t
WCL
t
WCH
t
SUCS1
t
SUCS2
t
HDCLK
t
SUDCLK
Figure 1 Timing Diagram
Test Conditions:
R
L
= 10k
, C
L
= 100pF. VDD
= 5V
±
10%, V
REF
= 2.048V and VDD
= 3V
±
10%, V
REF
= 1.024V over recommended operating free-
air temperature range (unless noted otherwise)
SYMBOL
TEST CONDITIONS
Setup time NCS low before SCLK low
Setup time, rising edge of SCLK to rising edge of NCS,
external end of write
Setup time, rising edge of SCLK to falling edge of NCS,
start of next write cycle
Pulse duration, SCLK high
Pulse duration, SCLK low
Setup time, data ready before SCLK falling edge
Hold time, data held valid after SCLK falling edge
MIN
TYP
MAX
UNIT
t
SUCSS
10
ns
t
SUSCS1
10
ns
t
SUSCS2
5
ns
t
WCL
t
WCH
t
SUDCLK
t
HDCLK
25
25
10
5
ns
ns
ns
ns
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