CS8421-DZZ Cirrus Logic Inc, CS8421-DZZ Datasheet - Page 12

• Manufacturer Part Number: CS8421-DZZ
• Description: Audio Sample Rate Converter IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS8421-DZZ

• Audio Control Type: Sample Rate Converter
• Control Interface: 3 Wire, Serial
• Supply Voltage Range: 2.38V To 2.62V, 3.14V To 5.25V
• Operating Temperature Range: -40°C To +85°C
• Audio Ic Case Style: TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12
DIGITAL FILTER CHARACTERISTICS
DC ELECTRICAL CHARACTERISTICS
(GND = 0 V; all voltages with respect to 0 V.)
Passband (Upsampling or Downsampling)
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
Power-Down Mode
Supply Current in power-down
(Oscillator attached to XTI-XTO)
Supply Current in power-down
(Crystal attached to XTI-XTO)
Normal Operation
Supply Current at 48 kHz Fsi and Fso
(Oscillator attached to XTI-XTO)
Supply Current at 192 kHz Fsi and Fso
(Oscillator attached to XTI-XTO)
Supply Current at 48 kHz Fsi and Fso
(Crystal attached to XTI-XTO)
Supply Current at 192 kHz Fsi and Fso
(Crystal attached to XTI-XTO)
3. The equation for the group delay through the sample-rate converter is (56.581 / Fsi) + (55.658 / Fso).
4. Power Down Mode is defined as RST = LOW with all clocks and data lines held static, except when a
5. Normal operation is defined as RST = HI.
For example, if the input sample rate is 192 kHz and the output sample rate is 96 kHz, the group delay
through the sample-rate converter is (56.581/192,000) + (55.658/96,000) =.875 milliseconds.
crystal is attached across XTI-XTO, in which case the crystal will begin oscillating.
(Note 5)
(Note 4)
Parameters
Parameter
VL = 3.3 V
VL = 5.0 V
VL = 3.3 V
VL = 5.0 V
VL = 3.3 V
VL = 5.0 V
VL = 3.3 V
VL = 5.0 V
VL = 3.3 V
VL = 5.0 V
VL = 3.3 V
VL = 5.0 V
VD
VD
VD
VD
VD
VD
Symbol
0.5465*Fso
Min
125
Min
-
-
(Note 3)
Typ
100
200
100
Typ
1.5
2.5
6.5
50
24
80
13
24
80
4
4
8
3
7
4
-
-
-
-
0.4535*Fso
Max
±0.007
Max
-
-
CS8421
DS641F2
Units
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
μA
μA
μA
μA
Units
ms
Hz
dB
Hz
dB