CS8420-CSZ Cirrus Logic Inc, CS8420-CSZ Datasheet - Page 8

• Manufacturer Part Number: CS8420-CSZ
• Description: IC SAMPLE RATE CONVERTER 28SOIC
• Manufacturer: Cirrus Logic Inc
• Type: Sample Rate Converterr

Specifications of CS8420-CSZ

• Package / Case: 28-SOIC
• Applications: CD-R, DAT, DVD, MD, VTR
• Mounting Type: Surface Mount
• Operating Supply Voltage: 5 V
• Operating Temperature Range: - 10 C to + 70 C
• Mounting Style: SMD/SMT
• Resolution: 17 bit to 24 bit
• Control Interface: 3 Wire, Serial
• Supply Voltage Range: 4.75V To 5.25V
• Audio Ic Case Style: SOIC
• No. Of Pins: 28
• Bandwidth: 20kHz
• Rohs Compliant: Yes
• Audio Control Type: Volume
• Dc: 0841
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1782 - EVALUATION BOARD FOR CS8420
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1125-5

SWITCHING CHARACTERISTICS - CONTROL PORT - SPI MODE
VA+ = VD+ = 5V ±5%, Inputs: Logic 0 = 0V, Logic 1 = VD+; C
Notes: 9. If Fso or Fsi is lower than 46.875 kHz, then maximum CCLK frequency should be less than 128Fso and
8
CCLK Clock Frequency
CS High Time Between Transmissions
CS Falling to CCLK Edge
CCLK Low Time
CCLK High Time
CDIN to CCLK Rising Setup Time
CCLK Rising to DATA Hold Time
CCLK Falling to CDOUT Stable
Rise Time of CDOUT
Fall Time of CDOUT
Rise Time of CCLK and CDIN
Fall Time of CCLK and CDIN
10. Data must be held for sufficient time to bridge the transition time of CCLK.
11. For f
less than 128Fsi. This is dictated by the timing requirements necessary to access the Channel Status
and User Bit buffer memory. Access to the control register file can be carried out at the full 6 MHz rate.
The minimum allowable input sample rate is 8 kHz, so choosing CCLK of less than or equal to
1.024 MHz should be safe for all possible conditions
sck
<1 MHz.
Parameter
CDOUT
CDIN
CCLK
CS
t css
t r2
Figure 3. SPI Mode Timing
t dsu
(Note 10)
t scl
(Note 11)
(Note 11)
t f2
(Note 9)
t sch
t dh
L
= 20 pF)
Symbol
t pd
t
f
t
t
t
t
t
t
csh
sch
dsu
t
t
sck
css
t
t
scl
dh
pd
r1
f1
r2
f2
Min
1.0
20
66
66
40
15
0
-
-
-
-
-
t csh
Typ
-
-
-
-
-
-
-
-
-
-
-
-
Max
100
100
6.0
(T
45
25
25
-
-
-
-
-
-
A
CS8420
= 25 °C;
DS245PP2
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s