AM79C2031JC AMD (ADVANCED MICRO DEVICES), AM79C2031JC Datasheet - Page 28
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AM79C2031JC
Manufacturer Part Number
AM79C2031JC
Description
Manufacturer
AMD (ADVANCED MICRO DEVICES)
Datasheet
1.AM79C2031JC.pdf
(40 pages)
Specifications of AM79C2031JC
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Total Distortion, Including Quantizing Distortion
The signal-to-total distortion ratio will exceed the limits shown in Figure 5 for either path when the input signal is
a sine wave signal of frequency 1014 Hz.
Improved distortion at lower levels in LSSGR applications can be obtained by proper selection of the GX and GR
ranges.
Overload Compression
Figure 6 shows the acceptable region of operation for input signal levels above the reference input power (0 dBm0).
The conditions for this figure are: (1) 1 dB < transmit path
voice output connected to digital voice input; and (4) measurement analog-to-analog.
28
C
D
–45
–40
Output Power
Fundamental
B
(dBm0)
Figure 5. Total Distortion with Tone Input (Both Paths)
–30
ASLAC Device Specification
Input Level (dBm0)
2.6
Am79213/Am79C203/031 Data Sheet
8
7
6
9
5
4
3
2
1
Figure 6. A/A Overload Compression
P R E L I M I N A R Y
1
Fundamental Input Power (dBm0)
2
3
4
+12 dB; (2) –12 dB
5
0
A
Signal-to-Total
Distortion (dB)
6
Acceptable
Region
7
A
B
C
D
8
receive path < –1 dB; (3) digital
35.5 dB 35.5 dB
35.5 dB 35.5 dB
30 dB
25 dB
A-law
9
27 dB
31 dB
µ-law