ML145502, ML145503, ML145505

LANSDALE Semiconductor, Inc.

ANALOG TRANSMISSION PERFORMANCE

(VDD = + 5 V ± 5%, VSS = – 5 V ± 5%, VLS = VAG = 0 V, Vref = RSI = VSS (Internal 3.15 V Reference), 0 dBm0 = 1.546 Vrms = + 6 dBm @

600

Ω, TA = – 40 to + 85°C, TDC = RDC = CC = 2.048 MHz, TDE = RCE = MSI = 8 kHz, Unless Otherwise Noted)

End–to–End

A/D

D/A

Characteristic

Min

Max

Min

Max

Min

Max

Unit

Absolute Gain (0 dBm0 @ 1.02 kHz, TA = 25°C, VDD = 5 V, VSS = – 5 V)

—

—

– 0.30

+ 0.30

– 0.30

+ 0.30

dB

Absolute Gain Variation with Temperature 0 to + 70

°C

—

—

—

± 0.03

—

± 0.03

dB

Absolute Gain Variation with Temperature – 40 to +85

°C

—

—

—

± 0.1

—

± 0.1

dB

Absolute Gain Variation with Power Supply (VDD = 5 V, VSS = – 5 V, 5%)

—

—

—

± 0.02

—

± 0.02

dB

Gain vs Level Tone (Relative to – 10 dBm0, 1.02 kHz)

+ 3 to – 40 dBm0

– 40 to – 50 dBm0

– 50 to – 55 dBm0

– 0.4

– 0.8

– 1.6

+ 0.4

+ 0.8

+ 1.6

– 0.2

– 0.4

– 0.8

+ 0.2

+ 0.4

+ 0.8

– 0.2

– 0.4

– 0.8

+ 0.2

+ 0.4

+ 0.8

dB

Gain vs Level Pseudo Noise (A–Law Relative to – 10 dBm0)

CCITT G.714

– 10 to – 40 dBm0

– 40 to – 50 dBm0

– 50 to – 55 dBm0

—

—

—

—

—

—

– 0.25

– 0.30

– 0.45

+ 0.25

+ 0.30

+ 0.45

– 0.25

– 0.30

– 0.45

+ 0.25

+ 0.30

+ 0.45

dB

Total Distortion – 1.02 kHz Tone (C–Message)

0 to – 30 dBm0

– 40 dBm0

– 45 dBm0

35

29

24

—

—

—

36

29

24

—

—

—

36

30

25

—

—

—

dBC

Total Distortion With Pseudo Noise (A–Law)

– 3 dBm0

CCITT G.714

– 6 to – 27 dBm0

– 34 dBm0

– 40 dBm0

– 55 dBm0

27.5

35

33.1

28.2

13.2

—

—

—

—

—

28

35.5

33.5

28.5

13.5

—

—

—

—

—

28.5

36

34.2

30.0

15.0

—

—

—

—

—

dB

Idle Channel Noise (For End–End and A/D, See Note 1)

Mu–Law, C–Message Weighted

A–Law, Psophometric Weighted

—

—

15

– 69

—

—

15

– 69

—

—

9

– 78

dBrnC0

dBm0p

Frequency Response (Relative to 1.02 kHz @ 0 dBm0)

15 to 60 Hz

300 to 3000 Hz

3400 Hz

4000 Hz

4600 Hz

—

– 0.3

– 1.6

—

—

– 23

+ 0.3

0

– 28

– 60

—

– 0.15

– 0.8

—

—

– 23

+ 0.15

0

– 14

– 32

—

– 0.15

– 0.8

—

—

0.15

+ 0.15

0

– 14

– 30

dB

Inband Spurious (1.02 kHz @ 0 dBm0, Transmit and RxO)

300 to 3000 Hz

—

—

—

– 43

—

– 43

dBm0

Out–of–Band Spurious at RxO (300 – 3400 Hz @ 0 dBm0 In)

4600 to 7600 Hz

7600 to 8400 Hz

8400 to 100,000 Hz

—

—

—

– 30

– 40

– 30

—

—

—

—

—

—

—

—

—

– 30

– 40

– 30

dB

Idle Channel Noise Selective @ 8 kHz, Input = VAG, 30 Hz Bandwidth

—

– 70

—

—

—

– 70

dBm0

Absolute Delay @ 1600 Hz (TDC = 2.048 MHz, TDE = 8 kHz)

—

—

—

310

—

180

µs

Group Delay Referenced to 1600 Hz (TDC = 2048 kHz,

TDE = 8 kHz)

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

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

200

140

70

40

75

110

170

– 40

– 40

– 30

– 20

—

—

—

—

—

—

—

90

120

160

µs

Crosstalk of 1020 Hz @ 0 dBm0 From A/D or D/A (Note 2)

—

—

—

– 75

—

– 80

dB

Intermodulation Distortion of Two Frequencies of Amplitudes – 4 to

– 21 dBm0 from the Range 300 to 3400 Hz

—

—

—

– 41

—

– 41

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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Issue A