Datasheet

PCM3008
SLAS332 – APRIL 2001
3
www.ti.com
_
+
_
+
Delta
Sigma
Modulator
+
–
30 kΩ
2
1
V
IN
R
V
COM
+
0.47 µF
+
1 µF
Reference
Figure 1. Analog Front-End (right-channel)
Terminal Assignments
TERMINAL
NAME NO.
I/O DESCRIPTION
V
COM
1 – ADC/DAC common decouple (see Note 1)
V
IN
R 2 I ADC analog input, R-channel.
V
IN
L 3 I ADC analog input, L-channel.
GND 4 – Ground.
V
CC
5 – Power supply.
DEM0 6 I De-emphasis control 0 (see Note 2)
DEM1 7 I De-emphasis control 1 (see Note 2)
DOUT 8 O Data output
DIN 9 I Data input (see Note 2)
LRCK 10 I Sampling clock input (see Note 2)
SYSCK 11 I System clock input (see Note 2)
BCK 12 I Bit clock input (see Note 2)
PDAD 13 I ADC power down, active low (see Note 2)
PDDA 14 I DAC power down, active low (see Note 2)
V
OUT
L 15 O DAC analog output, L-channel.
V
OUT
R 16 O DAC analog output, R-channel.
NOTES: 1. Connect decouple capacitor to GND.
2. Schmitt trigger input, open state can not be allowed because of no internal pullup or pulldown.