CS48DV2B Data Sheet
32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby
10 Copyright 2009 Cirrus Logic DS875F2
CONFIDENTIAL
CONFIDENTI
A
L
DRA
FT
D
ELPHI
5. Characteristics and Specifications
Note: All data sheet minimum and maximum timing parameters are guaranteed over the rated voltage and
temperature. All data sheet typical parameters are measured under the following conditions: T = 25 °C,
C
L
= 20 pF, VDD = VDDA = 1.8 V, VDDIO = 3.3 V, GNDD = GNDIO = GNDA = 0 V.
5.1 Absolute Maximum Ratings
(GNDD = GNDIO = GNDA = 0 V; all voltages with respect to 0V)
Caution: Operation at or beyond these limits may result in permanent damage to the device. Normal operation is
not guaranteed at these extremes.
5.2 Recommended Operating Conditions
(GNDD = GNDIO = GNDA = 0 V; all voltages with respect to 0V)
Note: It is recommended that the 3.3 V IO supply come up ahead of or simultaneously with the 1.8 V core supply.
5.3 Digital DC Characteristics
(Measurements performed under static conditions.)
Parameter Symbol Min Max Unit
DC power supplies: Core supply
PLL supply
I/O supply
|VDDA – VDDIO|
VDD
VDDA
VDDIO
-0.3
-0.3
-0.3
-
2.0
3.6
3.6
0.3
V
V
V
V
Input pin current, any pin except supplies I
in
-+/-10mA
Input voltage on PLL_REF_RES V
filt
-0.3 3.6 V
Input voltage on I/O pins V
inio
-0.3 5.0 V
Storage temperature T
stg
-65 150 °C
Parameter Symbol Min Typ Max Unit
DC power supplies: Core supply
PLL supply
I/O supply
|VDDA – VDDIO|
VDD
VDDA
VDDIO
1.71
3.13
3.13
1.8
3.3
3.3
0
1.89
3.46
3.46
V
V
V
V
Ambient operating temperature
CS48DV2B-CQZ
CS48DV2B-DQZ
T
A
0
-40
-
+70
+85
°C
Parameter Symbol Min Typ Max Unit
High-level input voltage V
IH
2.0 - - V
Low-level input voltage, except XTI V
IL
--0.8V
Low-level input voltage, XTI V
ILXTI
--0.6V
Input Hysteresis V
hys
0.4 V
High-level output voltage (I
O
= -2mA), except XTI V
OH
VDDIO * 0.9 - - V
Low-level output voltage (I
O
= 2mA), except XTI V
OL
- - VDDIO * 0.1 V
Input leakage XTI I
LXTI
--5μA
Input leakage current (all digital pins with internal
pull-up resistors enabled)
I
LEAK
--70μA
