CS8420 CIRRUS [Cirrus Logic], CS8420 Datasheet - Page 5

• Manufacturer Part Number: CS8420
• Description: DIGITAL AUDIO SAMPLE RATE CONVERTER
• Manufacturer: CIRRUS [Cirrus Logic]

1.
PERFORMANCE SPECIFICATIONS
DIGITAL FILTER CHARACTERISTICS
Notes: 1. The value shown is for Fsi = Fso = 48 kHz. The group delay scales with input and output sample rate
POWER AND THERMAL CHARACTERISTICS
to ground)
Notes: 2. ‘-CS’ parts are specified to operate over -10°C to 70 °C but are tested at 25 °C only.
DS245PP2
Dynamic Range
Input Sample Rate
Output Sample Rate
Output to Input Sample Rate Ratio
Total Harmonic Distortion + Noise
Peak idle channel noise component
Input Jitter Tolerance of SRC
Resolution
Gain Error
Passband
Passband Ripple
Stopband (Downsampling)
Stopband Attenuation
Group Delay
Group Delay Variation vs. Frequency
Interchannel Phase Deviation
Power Supply Voltage
Power Consumption at 96 kHz Fso and Fsi
Power Consumption at 48 kHz Fso and Fsi
Supply Current at 96 kHz Fso and Fsi
Supply Current in power down (RST high, VD+ & VA+)
Ambient Operating Temperature
Junction Temperature
Junction to Ambient thermal impedance (28 pin SOIC)
1 kHz, -1dBFS, 0.33 < Fso/Fsi < 1.7
1 kHz, -1dBFS, 0.33 < Fso/Fsi < 3
10 kHz, -1dBFS, 0.33 < Fso/Fsi < 1.7
10 kHz, -1dBFS, 0.33 < Fso/Fsi < 3
CHARACTERISTICS/SPECIFICATIONS
according to the following formula: t
Parameter*
Parameter*
Parameter
* Parameter Definitions are given at the end of this data sheet
Downsampling
(serial input port)
Upsampling
gd
(Note 1)
= 41/Fsi + 43/Fso
(Note 2)
(T
A
(T
VD+
VA+
= 25 °C; VA+ = VD+ = 5V ±5%)
A
Symbol
= 25 °C; VA+ = VD+ = 5V ±5%)
t
gd
t
gd
VD+,VA+
Symbol
Symbol
THD+N
Fso
Fsi
T
T
JA
(AGND, DGND = 0V, all voltages with respect
A
J
0.5465*Fso
Min
110
0
0
-
-
-
-
-0.12
0.33
4.75
Min
Min
120
-10
16
8
8
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ
-
-
-
-
-
-
-
-
Typ
128
Typ
660
350
125
5.0
7.0
0.5
25
65
-
-
-
-
-
-
-
-
-
-
-
-
0.4535*Fso
0.4535*Fsi
±0.007
Fsi/2
Max
1.75
0.0
0.0
-107
-140
TBD
TBD
TBD
TBD
TBD
Max
-117
-112
-110
Max
5.25
-
108
108
135
24
70
3
0
-
-
-
CS8420
dBFS
Units
Units
Units
°C/W
kHz
kHz
mW
mW
bits
mA
mA
mA
ms
dB
dB
dB
dB
dB
dB
Hz
Hz
dB
Hz
dB
°C
°C
ns
V
°
s
5