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CS48DV2B データシート(PDF) 11 Page - Cirrus Logic |
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CS48DV2B データシート(HTML) 11 Page - Cirrus Logic |
11 / 26 page CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby DS875F2 Copyright 2009 Cirrus Logic 11 CONFIDENTIAL 5.4 Power Supply Characteristics (Measurements performed under operating conditions) 5.5 Thermal Data (48-Pin LQFP) 1. Two-layer board is specified as a 76 mm X 114 mm, 1.6 mm thick FR-4 material with 1-oz. copper covering 20 % of the top & bottom layers. 2. Four-layer board is specified as a 76 mm X 114 mm, 1.6 mm thick FR-4 material with 1-oz. copper covering 20 % of the top & bottom layers and 0.5-oz. copper covering 90 % of the internal power plane & ground plane layers. 3. To calculate the die temperature for a given power dissipation T j = Ambient Temperature + [ (Power Dissipation in Watts) * θ ja ] 4. To calculate the case temperature for a given power dissipation T c = Tj - [ (Power Dissipation in Watts) * ψ jt ] Parameter Min Typ Max Unit Operational Power Supply Current: VDD: Core and I/O operating1 VDDA: PLL operating VDDIO: With most ports operating Total Operational Power Dissipation: Standby Power Supply Current: VDD: Core and I/O not clocked VDDA: PLL halted VDDIO: All connected I/O pins 3-stated by other ICs in system Total Standby Power Dissipation: 1. Dependent on application firmware and DSP clock speed. - - - - - - - 203 8 27 480 100 1 50 348 - - - - - - - mA mA mA mW μA μA μA μW Parameter Symbol Min Typ Max Unit Junction Temperature Tj - - 125 °C Thermal Resistance (Junction to Ambient) Two-layer Board1 Four-layer Board2 θ ja - - 63.5 54 - - °C / Watt Thermal Resistance (Junction to Top of Package) Two-layer Board3 Four-layer Board4 ψ jt - - 0.70 0.64 - - °C / Watt |
同様の部品番号 - CS48DV2B_09 |
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同様の説明 - CS48DV2B_09 |
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