ML145554, ML145557, ML145564, ML145567
ANALOG TRANSMISSION PERFORMANCE
LANSDALE Semiconductor, Inc.
(VCC = + 5 V 5%, VBB = – 5 V
±
5%, GNDA = 0 V, 0 dBm0 = 1.2276 Vrms = + 4 dBm @ 600
Ω,
FSX = FSR = 8 kHz,
BCLKX = MCLKX = 2.048 MHz Synchronous Operation, VFXI – Connected to GSX, TA = – 40 to + 85°C Unless Otherwise Noted)
End–to–End
Characteristic
Absolute Gain (0 dBm0 @ 1.02 kHz, TA = 25°C, VCC = 5 V, VBB = – 5 V)
Absolute Gain Variation with Temperature
0 to 70°C
– 40 to + 85°C
Min
—
—
—
—
– 0.4
– 0.8
– 1.6
—
—
—
33
35
29
24
15
27.5
35
33.1
28.2
13.2
—
—
15 Hz
50 Hz
60 Hz
200 Hz
300 to 3000 Hz
3300 Hz
3400 Hz
4000 Hz
4600 Hz
300 to 3000 Hz
—
—
—
—
– 0.3
– 0.70
– 1.6
—
—
—
Max
—
—
—
—
+ 0.4
+ 0.8
+ 1.6
—
—
—
—
—
—
—
—
—
—
—
—
—
15
– 70
– 40
– 30
– 26
—
0.3
+ 0.3
0
– 28
– 60
– 48
Min
– 0.25
—
—
—
– 0.2
– 0.4
– 0.8
– 0.25
– 0.30
– 0.45
33
36
30
25
15
28
35.5
33.5
28.5
13.5
—
—
—
—
—
– 1.0
– 0.15
– 0.35
– 0.8
—
—
—
A/D
Max
– 0.25
±
0.03
±
0.06
±
0.02
+ 0.2
+ 0.4
+ 0.8
+ 0.25
+ 0.30
+ 0.45
—
—
—
—
—
—
—
—
—
—
15
– 70
– 40
– 30
– 26
– 0.4
+ 0.15
+ 0.15
0
– 14
– 32
– 48
Min
– 0.25
—
—
—
– 0.2
– 0.4
– 0.8
– 0.25
– 0.30
– 0.45
33
36
30
25
15
28.5
36
34.2
30
15
—
—
– 0.15
– 0.15
– 0.15
– 0.15
– 0.15
– 0.35
– 0.8
—
—
—
D/A
Max
+ 0.25
±
0.03
±
0.06
±
0.02
+ 0.2
+ 0.4
+ 0.8
+ 0.25
+ 0.30
+ 0.45
—
—
—
—
—
—
—
—
—
—
7
– 83
0
0
0
0
+ 0.15
+ 0.15
0
– 14
– 30
– 48
Unit
dB
dB
dB
dB
Absolute Gain Variation with Power Supply (VCC = 5 V,
±
5%,
VBB = – 5 V, 5%)
Gain vs Level Tone (Relative to – 10 dBm0, 1.02 kHz)
+ 3 to – 40 dBm0
– 40 to – 50 dBm0
– 50 to – 55 dBm0
– 10 to – 40 dBm0
– 40 to – 50 dBm0
– 50 to – 55 dBm0
+ 3 dBm0
0 to – 30 dBm0
– 40 dBm0
– 45 dBm0
– 55 dBm0
– 3 dBm0
– 6 to – 27 dBm0
– 34 dBm0
– 40 dBm0
– 55 dBm0
Gain vs Level Pseudo Noise CCITT G.712
(ML145557/67 A–Law Relative to – 10 dBm0)
Total Distortion, 1.02 kHz Tone (C–Message)
dB
dBC
Total Distortion With Pseudo Noise CCITT G.714
(ML145557/67 A–Law)
dB
Idle Channel Noise (For End–End and A/D, Note 1)
(ML145554/64 Mu–Law, C–Message Weighted)
(ML145557/67 A–Law, Psophometric Weighted)
Frequency Response (Relative to 1.02 kHz @ 0 dBm0)
dBrnC0
dBm0p
dB
In–Band Spurious
(1.02 kHz @ 0 dBm0, Transmit and Receive)
dBm0
dB
Out–of–Band Spurious at VFRO (300 – 3400 Hz @ 0 dBm0 In)
4600 to 7600 Hz
7600 to 8400 Hz
8400 to 100,000 Hz
Idle Channel Noise Selective (8 kHz, Input = GNDA, 30 Hz Bandwidth)
Absolute Delay (1600 Hz)
Group Delay Referenced to 1600 Hz
500 to 600 Hz
600 to 800 Hz
800 to 1000 Hz
1000 to 1600 Hz
1600 to 2600 Hz
2600 to 2800 Hz
2800 to 3000 Hz
—
—
—
—
—
—
—
—
—
—
—
—
—
—
– 30
– 40
– 30
– 70
—
—
—
—
—
—
—
—
—
– 41
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
315
220
145
75
40
75
105
155
– 75
– 41
—
—
—
—
—
– 40
– 40
– 40
– 30
—
—
—
—
—
– 30
– 40
– 30
– 70
215
—
—
—
—
90
125
175
– 75
– 41
dBm0
µs
µs
Crosstalk of 1020 Hz @ 0 dBm0 from A/D or D/A (Note 2)
Intermodulation Distortion of Two Frequencies of Amplitudes
– 4 to – 21 dBm0 from the Range 300 to 3400 Hz
dB
dB
NOTES:
1. Extrapolated from a 1020 Hz @ – 50 dBm0 distortion measurement to correct for encoder enhancement.
2. Selectively measured while the A/D is stimulated with 2667 Hz @ – 50 dBm0.
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