Datasheet

ERROR/ INT0
NPCM/ INT1
MPIO_A0
MPIO_A1
MPIO_A2
MPIO_A3
MPIO_C0
MPIO_C1
MPIO_C2
MPIO_C3
MPIO_B0
MPIO_B1
1
2
3
4
5
6
7
8
9
10
11
12
MPIO_B2 MPIO_B3 MPO0 MPO1 DOUT LRCK BCK SCKO DGND DVDD MDO/ ADR0 MDI/ SDA
VDDRX
RXIN1
RXIN2
RXIN3
RXIN4/ ASCKIO
RXIN5/ ABCKIO
RXIN6/ ALRCKIO
RXIN7/ ADIN0
MODE
MS/ ADR1
MC/ SCL
36
35
34
33
32
31
30
29
28
27
26
25
VINR
VINL
VCCAD
AGNDAD
VCOM
FILT VCC
AGND
XT O
XTI
GNDRX
RXIN0
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
C1
Analog Input
C2
C3
+5V
C4
R1
C5
C6
C7
+3.3V
X1
C9
C8
C12
C11
C10
R4
R3
+3.3V
COAX Input0V 0V 0V
COAX Input
Optical
Inputs
or
PCM
Audio
I/ F
0V or 3.3V
Serial
Control
I/ F
Serial
Control
I/ F
C13
0V +3.3V
PCM
Audio
I/ F
MPOx
Assigned
Functions
MPIO_B
Assigned
Functions
MPIO_A
Assigned
Functions
MPIO_C
Assigned
Functions
MPIO_B
Assigned
Functions
Interruption
Flag
Functions
R2
RST
PCM9211
www.ti.com SBAS495 –JUNE 2010
APPLICATION INFORMATION
TYPICAL CIRCUIT CONNECTION
Figure 44 illustrates a typical circuit connection.
R1: Loop filter resistor, 680 Ω.
R2: Current-limiting resistor; generally, a 100-Ω to 500-Ω resistor is used, but it depends on the crystal resonator.
R3, R4: Coax input termination resisters, 75 Ω.
C1, C2: 4.7-mF electrolytic capacitor is recommended for 3-Hz cutoff frequency.
C3, C7, C12, C13: 0.1-mF ceramic capacitor and 10-mF electrolytic capacitor, depending on the power supply.
C4: 0.1-mF ceramic capacitor and 10-mF electrolytic capacitor is recommended.
C5: Loop filter capacitor, 0.068 mF.
C6: Loop filter capacitor, 0.0047 mF.
C8, C9: OSC load capacitor; generally, a 10-pF to 30-pF capacitor is used, but it depends on the crystal resonator
and PCB layout.
C10, C11: DC blocking capacitor for coax input, 0.1 mF.
X1: Crystal resonator. Use a 24.576-MHz fundamental resonator when the XTI clock source is needed.
Figure 44. Typical Circuit Connection
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Product Folder Link(s): PCM9211