uda1340 NXP Semiconductors, uda1340 Datasheet - Page 12

• Manufacturer Part Number: uda1340
• Description: Low-voltage Low-power Stereo Audio Codec With Dsp Features
• Manufacturer: NXP Semiconductors

Philips Semiconductors
S
A 2-bit value (SC1 and SC0) to select the used external
clock frequency (see Table 7).
Table 7 System clock frequency settings
D
A 3-bit value (IF2 to IF0) to select the used data format
(see Table 8).
Table 8 Data input format settings
1997 Jul 09
YSTEM CLOCK FREQUENCY
ATA INPUT FORMAT
Low-voltage low-power stereo audio
CODEC with DSP features
IF2
0
0
0
0
1
1
1
1
SC1
0
0
1
1
IF1
0
0
1
1
0
0
1
1
SC0
0
1
0
1
IF0
0
1
0
1
0
1
0
1
LSB justified, 16 bits
LSB justified, 18 bits
LSB justified, 20 bits
MSB justified
FUNCTION
FUNCTION
not used
not used
not used
not used
I
2
512f
384f
256f
S-bus
s
s
s
12
DC-
A 1-bit value to enable the digital DC-filter (see Table 9).
Table 9 DC-filtering
V
A 6-bit value to program the left and right channel volume
attenuation (VC5 to VC0). The range is 0 dB to
steps of 1 dB (see Table 10).
Table 10 Volume settings
VC5
OLUME CONTROL
0
0
0
0
1
1
1
1
1
:
FILTER
VC4
0
0
0
0
1
1
1
1
1
:
DC
0
1
VC3
0
0
0
0
1
1
1
1
1
:
VC2
0
0
0
0
0
1
1
1
1
:
no DC-filtering
DC-filtering
VC1
0
0
1
1
1
0
0
1
1
:
Preliminary specification
FUNCTION
VC0
0
1
0
1
1
0
1
0
1
:
UDA1340
VOLUME
(dB)
0
0
58
59
60
:
1
2
dB in