參數(shù)資料
型號(hào): CS48DV2B-CQZR
廠商: Cirrus Logic Inc
文件頁(yè)數(shù): 3/26頁(yè)
文件大?。?/td> 0K
描述: IC DSP AUDIO 32BIT 2CH 48-LQFP
標(biāo)準(zhǔn)包裝: 2,000
系列: CS48DV2
類型: 定點(diǎn)
接口: I²C,SPI
時(shí)鐘速率: 150MHz
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 1.80V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 帶卷 (TR)
CS48DV2B Data Sheet
32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby
DS875F2
Copyright 2009 Cirrus Logic
11
CONFIDENTIAL
CONFIDENTI
A
L
DRA
FT
DELP
HI
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
mW
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
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