Freescale Semiconductor, Inc.
ANALOG TRANSMISSION PERFORMANCE
(V
DD
= + 5 V ± 5%, V
= 0 V, All Analog Signals Referenced to V , 0 dBm0 = 0.775 Vrms = + 0 dBm @ 600 Ω, FST = FSR = 8 kHz,
SS
AG
BCLKT = MCLK = 2.048 MHz Synchronous Operation, T = – 40 to + 85°C, Unless Otherwise Noted)
A
End–to–End
A/D
D/A
Characteristics
Absolute Gain (0 dBm0 @ 1.02 kHz, T = 25°C, V
Units
Min
Max
Min
Max
Min
Max
= 5.0 V)
—
—
– 0.25 + 0.25 – 0.25 + 0.25
dB
A
DD
Absolute Gain Variation with Temperature (Referenced to 25°C)
0 to + 70°C
– 40 to + 85°C
—
—
—
—
—
—
± 0.03
± 0.05
—
—
± 0.03
± 0.05
dB
dB
dB
Absolute Gain Variation with Power Supply (T = 25°C)
—
—
—
± 0.03
—
± 0.03
A
Gain vs Level Tone (Mu–Law, Relative to – 10 dBm0, 1.02 kHz)
+ 3 to – 40 dBm0
—
—
—
—
—
—
– 0.30 + 0.20 – 0.20 + 0.20
– 0.8
– 1.2
– 40 to – 50 dBm0
– 50 to – 55 dBm0
+ 0.40 – 0.40 + 0.40
+ 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
– 0.60 + 0.30 – 0.30 + 0.30
– 1.00 + 0.45 – 0.45 + 0.45
dB
dBC
dB
Total Distortion, 1.02 kHz Tone (Mu–Law, C–Message Weighting)
+ 3 dBm0
0 to – 30 dBm0
– 40 dBm0
—
—
—
—
—
—
—
—
34
36
30
25
—
—
—
—
34
36
30
25
—
—
—
—
– 45 dBm0
Total Distortion, Pseudo Noise, CCITT G.714 (A–Law)
– 3 dBm0
– 6 to – 27 dBm0
– 34 dBm0
—
—
—
—
—
—
—
—
—
—
—
—
30
36
34
29
19
14
—
—
—
—
—
—
30
36
35
30
20
15
—
—
—
—
—
—
– 40 dBm0
– 50 dBm0
– 55 dBm0
Idle Channel Noise (For End–to–End and A/D, See Note 1)
(Mu–Law, C–Message Weighted)
(A–Law, Psophometric Weighted)
—
—
—
—
—
—
17
– 69
—
—
11
– 79
dBrnc0
dBm0p
Frequency Response (Relative to 1.02 kHz @ 0 dBm0)
15 Hz
50 Hz
60 Hz
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
– 40
– 30
– 26
– 0.4
– 0.5
– 0.5
– 0.5
– 0.5
0
0
0
0
dB
200 Hz
– 1.0
300 to 3000 Hz
3000 to 3200 Hz
3300 Hz
– 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
—
3400 Hz
4000 Hz
0
– 14
– 32
– 0.85
—
—
0
– 14
30
4600 Hz to 100 kHz
—
In–Band Spurious (1.02 kHz @ 0 dBm0, Transmit and Receive)
300 to 3400 Hz
dB
dB
—
– 48
—
– 48
—
– 48
Out–of–Band Spurious at RO+ (300 to 3400 Hz @ 0 dBm0 in)
4600 to 7600 Hz
7600 to 8400 Hz
8400 to 100,000 Hz
—
—
—
– 30
– 40
– 30
—
—
—
—
—
—
—
—
—
– 30
– 40
– 30
Idle Channel Noise Selective (8 kHz, Input = V , 30 Hz Bandwidth)
AG
—
—
– 70
—
—
—
—
—
—
– 70
205
dBm0
µs
Absolute Delay (1600 Hz)
315
Group Delay Referenced to 1600 Hz
500 to 600 Hz
600 to 800 Hz
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
210
130
70
35
70
– 40
– 40
– 40
– 30
—
—
—
—
—
85
µs
800 to 1000 Hz
1000 to 1600 Hz
1600 to 2600 Hz
2600 to 2800 Hz
2800 to 3000 Hz
95
145
—
—
110
175
Crosstalk of 1020 Hz @ 0 dBm0 from A/D or D/A (Note 2)
—
—
—
– 75
—
– 75
dB
dB
Intermodulation Distortion of Two Frequencies of Amplitudes
(– 4 to – 21 dBm0 from the Range 300 to 3400 Hz)
—
– 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.
For More Information On This Product,
Go to: www.freescale.com
FREESCALE [ Freescale ]
