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| 型號(hào)： | AD9923ABBCZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 54/84頁(yè) |
| 文件大小： | 0K |
| 描述： | IC PROCESSOR CCD 12BIT 105CSPBGA |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | CCD 信號(hào)處理器，12 位 |
| 輸入類型： | 邏輯 |
| 輸出類型： | 邏輯 |
| 接口： | 3 線串口 |
| 電流 - 電源： | 20mA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 105-LFBGA，CSPBGA |
| 供應(yīng)商設(shè)備封裝： | 105-CSPBGA（8x8） |
| 包裝： | 托盤 |
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AD9923A
Rev. A | Page 58 of 84
VD
HD
SUSPEND
SYNC
HL, H1 TO H4, RG,
XV1 TO XV13,
VSG1 TO VSG8, SUBCK
NOTES
1. THE SYNC RISING EDGE RESETS VD/HD AND COUNTERS TO 0.
2. SYNC POLARITY IS PROGRAMMABLE USING SYNCPOL REGISTER (ADDR 0x13).
3. DURING SYNC LOW, ALL INTERNAL COUNTERS ARE RESET AND VD/HD CAN BE SUSPENDED USING THE SYNCSUSPEND REGISTER (ADDR 0x14).
4. IF SYNCSUSPEND = 1, VERTICAL CLOCKS, H1 TO H4, AND RG ARE HELD AT THE SAME POLARITY SPECIFIED BY OUTCONTROL = LOW.
5. IF SYNCSUSPEND = 0, ALL CLOCK OUTPUTS CONTINUE TO OPERATE NORMALLY UNTIL SYNC RESET EDGE.
05
58
6-
07
4
Figure 76. SYNC Timing to Synchronize AD9923A with External Timing
Generating Software Sync Without External Sync Signal
If an external sync pulse is not available, it is possible to generate
an internal sync pulse by writing to the SYNCPOL register
(Address 0x13). If the software SYNC option is used, the SYNC
input (Pin 35) should be low (VSS) during the power-up proce-
dure. After the power-up procedure is complete, the SYNC pin
can be used as an output by setting the SYNCENABLE register
low (Address 0x12).
After power-up, follow Step 1 to Step 9 of the procedure in the
For Step 10, instead of using the external sync pulse, write 1 to
the SYNCPOL register to generate an internal sync pulse and
begin the timing operation.
SYNC During Master Mode Operation
The SYNC input can be used anytime during master mode
operation to synchronize the AD9923A counters with external
timing, as shown in Figure 76.
To suspend operation of the digital outputs during the SYNC
operation, set the SYNCSUSPEND register (Address 0x14) to 1. If
SYNCSUSPEND = 1, the polarities of the outputs are held at the
same state as when OUTCONTROL = low, as shown in Table 43
and Table 44.
Power-Up and Synchronization in Slave Mode
The power-up procedure for slave mode operation is the same
as the procedure described for master mode operation, with
two exceptions:
Eliminate Step 8. Do not configure the part for master
mode timing.
No sync pulse is required in slave mode. Substitute Step 10
with starting the external VD and HD signals. This
synchronizes the part, allows the register updates, and
starts the timing operation.
Note that DCLK does not begin to transition until Step 7 is
complete.
When the AD9923A is in slave mode, the VD/HD inputs
synchronize the internal counters. After a falling edge of VD,
there is a latency of 34 master clock edges (CLI) after the falling
edge of HD until the internal H-counter is reset. The reset
operation is shown in Figure 77.
Note that if SHDLOC is set so that the 3 ns minimum delay
between the rising edge of SLI and the falling edge of the
internal SHD signal is not met, the internal H-counter can reset
after only 33 master clock edges (CLI).
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| AD9923ABBCZRL | 功能描述:IC PROCESSOR CCD 12BIT 105CSPBGA RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測(cè)器接口 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件 |
| AD9923BBCZ | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述: |
| AD9923BBCZRL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD9924BBCZ | 制造商:Analog Devices 功能描述: |
| AD9924BBCZRL | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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