FX629J CMLMICRO [CML Microcircuits], FX629J Datasheet - Page 7

• Manufacturer Part Number: FX629J
• Description: Delta Modulation Codec
• Manufacturer: CMLMICRO [CML Microcircuits]

Typical 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
- 10
- 20
- 30
- 40
- 50
5
0
0
10
0
3
1
2
0
100
0.3
1
- 6dB/octave
Input Frequency (kHz)
Input Level = -15dBm0
Frequency (Hz)
1k
2
Input Level = -15dBm0
1
10k
3
relative to the Mil-Std-188-113 Specification
1.4
7
Fig.11 S/N vs Input Frequency (32kbit/s)
Fig.13 Compand Envelope
2
100
90.0
48.0
10.0
3.0
30
25
20
15
10
5
0
2.6
X
3
1
'run-of-threes
3.4
0%
Input Level = -15dBm0
Input Frequency (kHz)
Frequency (kHz)
4
4.2
2
Time (ms)
5
X
30% 'run-of-threes
Beginning of
discharge
3
6
3.4