Freescale Semiconductor, Inc.
ANALOG TRANSMISSION PERFORMANCE
(VDD = + 5 V ± 5%, VSS = 0 V, All Analog Signals Referenced to VAG, 0 dBm0 = 0.775 Vrms = + 0 dBm @ 600 Ω, FST = FSR = 8 kHz,
BCLKT = MCLK = 2.048 MHz Synchronous Operation, TA = – 40 to + 85°C, Unless Otherwise Noted)
End–to–End
A/D
D/A
Characteristics
Min Max Min Max Min Max Units
Absolute Gain (0 dBm0 @ 1.02 kHz, TA = 25°C, VDD = 5.0 V)
—
Absolute Gain Variation with Temperature (Referenced to 25°C)
0 to + 70°C —
– 40 to + 85°C —
— – 0.25 + 0.25 – 0.25 + 0.25 dB
—
— ± 0.03 — ± 0.03 dB
—
— ± 0.05 — ± 0.05
Absolute Gain Variation with Power Supply (TA = 25°C)
—
Gain vs Level Tone (Mu–Law, Relative to – 10 dBm0, 1.02 kHz)
+ 3 to – 40 dBm0 —
– 40 to – 50 dBm0 —
– 50 to – 55 dBm0 —
—
— ± 0.03 — ± 0.03 dB
— – 0.30 + 0.20 – 0.20 + 0.20 dB
— – 0.8 + 0.40 – 0.40 + 0.40
— – 1.2 + 0.80 – 0.80 + 0.80
Gain vs Level Pseudo Noise, CCITT G.712
(A–Law, Relative to – 10 dBm0)
– 10 to – 40 dBm0 —
– 40 to – 50 dBm0 —
– 50 to – 55 dBm0 —
— – 0.25 + 0.25 – 0.25 + 0.25 dB
— – 0.60 + 0.30 – 0.30 + 0.30
— – 1.00 + 0.45 – 0.45 + 0.45
Total Distortion, 1.02 kHz Tone (Mu–Law, C–Message Weighting)
+ 3 dBm0 —
—
34
—
34
—
dBC
0 to – 30 dBm0 —
—
36
—
36
—
– 40 dBm0 —
—
30
—
30
—
– 45 dBm0 —
—
25
—
25
—
Total Distortion, Pseudo Noise, CCITT G.714 (A–Law)
– 3 dBm0 —
—
30
—
30
—
dB
– 6 to – 27 dBm0 —
—
36
—
36
—
– 34 dBm0 —
—
34
—
35
—
– 40 dBm0 —
—
29
—
30
—
– 50 dBm0 —
—
19
—
20
—
– 55 dBm0 —
—
14
—
15
—
Idle Channel Noise (For End–to–End and A/D, See Note 1)
(Mu–Law, C–Message Weighted) —
—
—
17
—
11 dBr nc0
(A–Law, Psophometric Weighted) —
—
— – 69 — – 79 dBm0p
Frequency Response (Relative to 1.02 kHz @ 0 dBm0)
15 Hz —
50 Hz —
60 Hz —
200 Hz —
300 to 3000 Hz —
3000 to 3200 Hz —
3300 Hz —
3400 Hz —
4000 Hz —
4600 Hz to 100 kHz —
—
—
– 40 – 0.5
0
dB
—
—
– 30 – 0.5
0
—
—
– 26 – 0.5
0
— – 1.0 – 0.4 – 0.5
0
— – 0.20 + 0.15 – 0.15 + 0.15
— – 0.20 + 0.20 – 0.20 + 0.20
— – 0.35 + 0.15 – 0.35 + 0.15
— – 0.8
0 – 0.85 0
—
— – 14 — – 14
—
— – 32 —
30
In–Band Spurious (1.02 kHz @ 0 dBm0, Transmit and Receive)
dB
300 to 3400 Hz — – 48 — – 48 — – 48
Out–of–Band Spurious at RO+ (300 to 3400 Hz @ 0 dBm0 in)
4600 to 7600 Hz — – 30 —
—
—
– 30
dB
7600 to 8400 Hz — – 40 —
—
— – 40
8400 to 100,000 Hz — – 30 —
—
— – 30
Idle Channel Noise Selective (8 kHz, Input = VAG, 30 Hz Bandwidth)
Absolute Delay (1600 Hz)
— – 70 —
—
— – 70 dBm0
—
—
—
315
—
205
µs
Group Delay Referenced to 1600 Hz
500 to 600 Hz —
—
—
210 – 40
—
µs
600 to 800 Hz —
—
—
130 – 40
—
800 to 1000 Hz —
—
—
70
– 40
—
1000 to 1600 Hz —
—
—
35
– 30
—
1600 to 2600 Hz —
—
—
70
—
85
2600 to 2800 Hz —
—
—
95
—
110
2800 to 3000 Hz —
—
—
145
—
175
Crosstalk of 1020 Hz @ 0 dBm0 from A/D or D/A (Note 2)
—
—
—
– 75
—
– 75
dB
Intermodulation Distortion of Two Frequencies of Amplitudes
(– 4 to – 21 dBm0 from the Range 300 to 3400 Hz)
dB
— – 41 — – 41 — – 41
NOTES:
1. Extrapolated from a 1020 Hz @ – 50 dBm0 distortion measurement to correct for encoder enhancement.
2. Selectively measured while stimulated with 2667 Hz @ – 50 dBm0.
3. Bold type indicates a change from the MC145480 to the MC14LC5480.
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