FX619 Consumer Microcircuits Limited, FX619 Datasheet - Page 7

• Manufacturer Part Number: FX619
• Description: Delta Codec
• Manufacturer: Consumer Microcircuits Limited

Codec Performance ......
Fig.10 S/N vs Input Frequency (16kbit/s)
Fig.12 Principal Integrator Response
Fig.14 Attenuation Distortion vs Frequency (32kbit/s)
- 12
- 18
- 24
- 30
20
15
10
+ 10
- 6
- 60
5
- 10
- 20
- 30
- 40
- 50
0
0
10
0
2
3
0
100
0.3
1
- 6dB/octave
Input Frequency (kHz)
Input Level = -20dBm0
Frequency (Hz)
1k
2
relative to the Eurocom Specification D1 - IA8
Input Level = -20dBm0
1
3
10k
1.4
7
Fig.11 S/N v s Input Frequency (32kbit/s)
Fig.13 Compand Envelope
0.00794
2
0.397
1.0
0.9
0.1
30
25
20
15
10
5
0
2.6
8.76
3
3.4
1
Frequency (kHz)
4
Input Frequency (kHz)
Input Level = -20dBm0
2
5.76
Time (ms)
5
Amplitude of test
signal (g) - Table 1.
Beginning of
discharge
Amplitude of
test signal (a)
6
3