參數(shù)資料
型號(hào): AD9937KCP
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, QCC56
封裝: MO-220-VLLD-2, LFCSP-56
文件頁(yè)數(shù): 40/44頁(yè)
文件大小: 410K
代理商: AD9937KCP
REV. 0
–40–
AD9937
3
1
5
6
2
7
RS, H2(A, B), LM
V1A/B, V2, V3A/B, V4, TG1A, TG1B, TG3A, TG3B,
OFD, H1(A, B, C, D)
t
DELAY
*
VDD
(INPUT)
VD
(OUTPUT)
DIGITAL
OUTPUTS
VCKM
HD
(OUTPUT)
OUTCONT
(INTERNAL
SIGNAL)
AFE_STBY
(REGISTER)
DIG_STBY
(REGISTER)
*
IT TAKES 4 VCKM CLOCK CYCLES FROM WHEN OUTCONT GOES HIGH UNTIL VD, HD AND DIGITAL
OUTPUT DATAIS VALID.
SERIAL
WRITES
Figure 38. Recommended Standby Sequence
STANDBY SEQUENCE
The following sequence is recommended when the AD9937 is
put into standby operation. (Refer to Figure 38 for each step.)
1. Write a 0 to the OUTCONT_REG register (addr 0x01).
2. Write a 0 to the DIG_STBY and AFE_STBY registers
(addr 0x02). This will put the digital and analog circuits into
the standby operating mode.
3. Stop VCKM clock. (This is optional.)
4. Apply VCKM when ready to come out of standby operation.
5. Write a 1 to the DIG_STBY and AFE_STBY registers
(addr 0x02). This will put the digital and analog circuits into
the normal operating mode.
6. Program any necessary control, system, or mode registers.
7. Write a 1 to the OUTCONT_REG register (addr 0x01) to
begin operation.
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