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

• Manufacturer Part Number: CS8421-CNZ
• Description: IC SAMPLE RATE CONVERTER 20QFN
• Manufacturer: Cirrus Logic Inc
• Type: Sample Rate Converterr

Specifications of CS8421-CNZ

• Package / Case: 20-QFN
• Applications: Digital Audio
• Mounting Type: Surface Mount
• Operating Supply Voltage: 3.3 V / 5.0 V
• Operating Temperature Range: - 10 C to + 70 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1018 - BOARD EVAL FOR CS8421
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1730

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)
Parameter
Parameter
Bypass Mode
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
SRC Mode
VD
VD
VD
VD
VD
VD
Symbol
0.5465*Fso
Min
125
-
-
-
-
Min
(Note 3)
Typ
-
-
-
-
-
Typ
100
200
100
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
3/Fsi
-
-
-
CS8421
DS641F5
Units
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
A
A
A
A
Units
Hz
dB
Hz
dB
s
s