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參數資料
| 型號： | CDB5532U |
| 廠商： | Cirrus Logic Inc |
| 文件頁數： | 3/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR CS5532U ADC |
| 標準包裝： | 1 |
| ADC 的數量： | 2 |
| 位數： | 24 |
| 采樣率（每秒）： | 3.84k |
| 數據接口： | 串行 |
| 輸入范圍： | ±2.5 V |
| 在以下條件下的電源（標準）： | 35mW @ 3.84kSPS |
| 工作溫度： | -40°C ~ 85°C |
| 已用 IC / 零件： | CS5532 |
| 已供物品： | 板，纜線，CD |
| 相關產品： | CS5532-BSZR-ND - IC ADC 24BIT 2CH W/LNA 20-SSOP CS5532-ASZR-ND - IC ADC 24BIT 2CH W/LNA 20-SSOP 598-1113-5-ND - IC ADC 24BIT 2CH W/LNA 20SSOP 598-1112-5-ND - IC ADC 24BIT 2CH W/LNA 20SSOP |
| 其它名稱： | 598-1159 |
IDT / ICS PCI EXPRESS JITTER ATTENUATOR
11
ICS9DB202CK-01 REV. B FEBRUARY 18, 2009
ICS9DB202-01
PCI EXPRESS JITTER ATTENUATOR
POWER CONSIDERATIONS
This section provides information on power dissipation and junction temperature for the ICS9DB202-01.
Equations and example calculations are also provided.
1. Power Dissipation.
The total power dissipation for the ICS9DB202-01 is the sum of the core power plus the power dissipated in the load(s).
The following is the power dissipation for V
DD
= 3.3V + 5% = 3.465V, which gives worst case results.
NOTE: Please refer to Section 3 for details on calculating power dissipated in the load.
Power (core)
MAX
= V
DD_MAX
* (I
DD_MAX
+ I
DDA_MAX
)= 3.465V * (112mA + 22mA) = 464.3mW
Power (outputs)
MAX
= 44.5mW/Loaded Output pair
Total Power
_MAX
(3.465V, with all outputs switching) = 464.3mW + 44.5mW = 508.81mW
2. Junction Temperature.
Junction temperature, Tj, is the temperature at the junction of the bond wire and bond pad and directly affects the reliability of the
device. The maximum recommended junction temperature for HiPerClockS
TM devices is 125°C.
The equation for Tj is as follows: Tj =
θ
JA * Pd_total + TA
Tj = Junction Temperature
θ
JA = Junction-to-Ambient Thermal Resistance
Pd_total = Total Device Power Dissipation (example calculation is in Section 1 above)
T
A = Ambient Temperature
In order to calculate junction temperature, the appropriate junction-to-ambient thermal resistance
θ
JA must be used. Assuming no air
flow and a multi-layer board, the appropriate value is 34.8°C/W per Table 5 below.
Therefore, Tj for an ambient temperature of 70°C with all outputs switching is:
70°C + 0.509W * 34.8°C/W = 87.7°C. This is well below the limit of 125°C.
This calculation is only an example. Tj will obviously vary depending on the number of loaded outputs, supply voltage, air flow,
and the type of board (single layer or multi-layer).
TABLE 5. THERMAL RESISTANCE
θθθθθ
JA
FOR
32-PIN VFQFN, FORCED CONVECTION
θθθθθ
JA
0 Air Flow (Linear Feet per Minute)
0
Multi-Layer PCB, JEDEC Standard Test Boards
34.8C/W
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相關代理商/技術參數 |
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|---|---|
| CDB5534U | 功能描述:數據轉換 IC 開發(fā)工具 Eval Bd 24Bit ADC w/ Ultra Low-Noise USB RoHS:否 制造商:Texas Instruments 產品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| 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 轉換器數:1 位數:24 采樣率（每秒）:3.84k 數據接口: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 標準包裝:1 |
| CDB5540 | 制造商:Cirrus Logic 功能描述:EVAL BOARD FOR CS5540 - Bulk |
| CDB5541 | 制造商:Cirrus Logic 功能描述:EVAL BOARD FOR 5540 & 5541 N/A - Bulk 制造商:Cirrus Logic 功能描述:Tools Development kit For Use |
| CDB5550 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Evaluation Board and Software |
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