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參數(shù)資料
| 型號： | AD9898KCP-20 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | CCD Signal Processor with Precision Timing⑩ Generator |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, QCC48 |
| 封裝： | MO-220-VKKD-2, LFCSP-48 |
| 文件頁數(shù)： | 47/52頁 |
| 文件大小： | 557K |
| 代理商： | AD9898KCP-20 |
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REV. 0
AD9898
–47–
3
1
5
6
2
t
DELAY2
VDD
(INPUT)
VD
(OUTPUT)
DIGITAL
OUTPUTS
CLI
(INPUT)
HD
(OUTPUT)
OUTCONT
(INTERNAL
SIGNAL)
AFESTBY
(REGISTER)
DIGSTBY
(REGISTER)
SERIAL
WRITES
DCLK1
AND
DCLK2
1
NOTES
1
DCLK2 WILL BE OUTPUT ON FD/DLCK2, PIN 16, PROVIDING REGISTER DCLK2SEL (ADDR 0xD5) = 1.
2
IT TAKES 11 CLI CLOCKS FROM WHEN OUTCONT GOES HIGH UNTIL VD, HD, AND DIGITAL OUTPUT DATA IS VALID.
H1, V1, VSG1, VSG2, VSUB, SUBCK
H2, V2, V3, FD, RG, MSHUT, STROBE
Figure 52. Recommended Standby Sequence
STANDBY MODE OPERATION
Recommended Standby Mode Sequence
When the AD9898 is going into standby operation, the following
sequence is recommended. (Refer to Figure 52 for each step.)
1. Program OUTCONT_REG (Addr 0x05) = 0. This will
assert the internal OUTCONT signal LO causing all digital
outputs to become disabled.
2. Program registers AFESTBY (Addr 0x05) = 0 and DIGSTBY
(Addr 0x05) = 0. The AD9898 is then in standby operation.
3. When it is time to come out of standby operation, program
register DIGSTBY (Addr 0x05) = 1 and register AFESTBY
(Addr 0x05) = 1.
4. Program necessary control registers.
5. Program control register MODE (Addr 0x0A) = 0. This
selects Mode_A operation.
6. Program register OUTCONT_REG (Addr 0x05) = 1. This
will assert the internal OUTCONT signal high, causing all
digital outputs to become active.
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