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參數(shù)資料
| 型號： | CDB5529 |
| 廠商： | Cirrus Logic Inc |
| 文件頁數(shù)： | 9/31頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR CS5529 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 303 |
| 數(shù)據(jù)接口： | 串行 |
| 輸入范圍： | ±2.5 V |
| 在以下條件下的電源（標(biāo)準(zhǔn)）： | 2.6mW @ 2.5V |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | CS5529 |
| 已供物品： | 板，線纜，磁盤 |
| 產(chǎn)品目錄頁面： | 755 (CN2011-ZH PDF) |
| 相關(guān)產(chǎn)品： | CS5529-ASZR-ND - IC ADC 16BIT W/6BIT LATCH 20SSOP 598-1110-5-ND - IC ADC 16BIT W/6BIT LATCH 20SSOP |
| 其它名稱： | 598-1015 |
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CS5529
DS246F5
17
Port Flag
The port flag bit in the configuration register allows
the user to select the mode in which conversions
will be presented to the serial port. With the port
flag bit cleared, the user must read the conversion
data register. With the port flag bit set to logic 1, the
user can read the conversion data from the serial
port by first issuing the NULL command to clear
the SDO flag and then issuing 24 SCLKs to read
the conversion word.
Calibration
Calibration is used to set the zero and gain slope of
the ADC’s transfer function. The calibration con-
trol bits in the configuration register allow the user
to perform either self calibration or system calibra-
tion.
The offset and gain calibration steps each take one
conversion cycle to complete. At the end of the cal-
ibration step, the calibration control bits will be set
back to logic 0, and the DF (Done Flag) bit will be
set to a logic 1. For the combination self-calibration
(CC2-CC0= 011; offset calibration followed by
gain calibration), the calibration will take two con-
version cycles to complete and will set the DF bit
after the gain calibration is completed.
Note:
1) The DF bit will be cleared any time the data
register, the offset register, the gain register,
or the setup register is read. Reading the
configuration register alone will not clear the
DF bit.
2) After the CS5529 is reset, the converter is
functional and can perform measurements
without being calibrated. In this case, the
converter will utilize the initialized values of
the on-chip registers (Gain = 1.0, Offset = 0.0)
to calculate output words. Any initial offset
and gain errors in the internal circuitry of the
chip will remain.
Calibration Registers
The offset calibration result is stored in the offset
register. The result is used during the conversion
process to nullify offset errors. One LSB in the off-
set register is 2-24 proportion of the input span (bi-
polar span is 2 times the unipolar span). The MSB
in the offset register determines if the offset to be
trimmed is positive or negative (0 positive, 1 nega-
tive). The converter can typically trim ±50 percent
of the input span. Refer to the following Offset
Register and Gain Register descriptions for details.
Offset Register
One LSB represents 2-24 proportion of the input span (bipolar span is 2 times unipolar span).
Offset and data word bits align by MSB (bit MSB-4 of offset register changes bit MSB-4 of data). After reset, all bits
are ‘0’.
23(MSB)
22
21
20
19
18
17
16
15
14
13
12
Sign
2-2
2-3
2-4
2-5
2-6
2-7
2-8
2-9
2-10
2-11
2-12
0
00000
0
11
10
9876
5
4
3
2
1
0
2-13
2-14
2-15
2-16
2-17
2-18
2-19
2-20
2-21
2-22
2-23
2-24
0
00000
0
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| CDB5534U-Z | 功能描述:EVAL BD 24-BIT ADCS W/ULTRALN PG 制造商:cirrus logic inc. 系列:- 零件狀態(tài):在售 A/D 轉(zhuǎn)換器數(shù):1 位數(shù):24 采樣率（每秒）:3.84k 數(shù)據(jù)接口:串行 輸入范圍:±2.5 V 不同條件下的功率（典型值）:35mW @ 3.84kSPS 使用的 IC/零件:CS5534 所含物品:板，電纜 標(biāo)準(zhǔn)包裝:1 |
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