dsp56167 Freescale Semiconductor, Inc, dsp56167 Datasheet - Page 56

• Manufacturer Part Number: dsp56167
• Description: Advance Information 16-bit Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

Specifications
Codec A/D and D/A Performance
CODEC A/D AND D/A PERFORMANCE
V
2-30
DDA
A/D Signal-to-Noise plus distortion ratio
S /( N + THD)
D/A Signal-to-Noise plus distortion ratio
S / (N + THD)
Note:
Figure 2-27 An Example of S/N and S/(N + THD) Performance for the Codec A/D Section
= 5.0 V 10%; T
80
70
60
50
40
30
20
10
0
1.
2.
0 dB gain on the A/D and D/A; codec clock at 2.048 MHz with 128 decimation/interpolation
ratio
0 dBm0 corresponds to 3.00 dB below the input saturation level of 1.0 V
V
DDA
S/(N+THD)
Characteristic
S/N
= 5.0 V.
J
= –40 to +115˚C
Table 2-14 Codec Performance Levels
DSP56167/D, Rev. 1
Input Signal in dB
–50 dBm0
0 dBm0
Signal
–50 dB
S in dB
Input
Level
0 dB
Min.
55
15
55
15
Typical
65
20
60
15
P
single-ended with
1
Max.
—
—
—
—
MOTOROLA
AA0900
Unit
dB
dB
dB
dB