STLC5048

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ELECTRICAL CHARACTERISTICS (continued)

TRANSMIT TRANSFER CHARACTERISTICS

(all tests are performed in absolute gain condition (TXG = GTXn = 0dB) unless otherwise specified).

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Absolute level at 0 dBm0 are:

TXG = 0dB, GTXn = 0dB

60

mVrms

GXA

Transmit gain Absolute accuracy

-0.15

0.15

dB

GXAG

Transmit gain variation with programmed

gain (within 3 dB from max dig. level)

-0.2

0.2

dB

GFX

Gain variation with frequency (relative to

gain at 1004Hz); 0dBm0 input signal

50 Hz

60Hz

200Hz

300-3000Hz

3400Hz

4000Hz

4600Hz and above

-1.8

-0.15

-0.7

-20

-20

0

0.15

0

-14.0

-32.0

dB

GAXT

Gain variation with temperature

-0.10

0.10

dB

GAXE

Gain variation with Supplies +/- 5%

0dBm0 Input Signal

-0.05

0.05

dB

GTX

Gain Tracking with Tone (1004Hz Mu

(1) VFXI=106mVrms, TXG=+3.52dB, GTX=-8.308dB (levels and gain condition eqivalent to 0dBr with Zadm = 600 Ohm on the application)

GSX = 3 to -40dBm0

GSX = -40 to -50dBm0

GSX = -50 to -55dBm0

-0.2

-0.4

-1.2

0.2

0.4

1.2

dB

QDX

Quantization Distortion with Tone

(1004Hz Mu Law, 820Hz ALaw)

VFXI = +3dbm0

VFXI = 0 to -30dBm0

VFXI = -40 dBm0

VFXI = -50 to -55 dBm0

33

36

30

15

dB

NCT

Transmit Noise C Message Weighted

(Mu and A Law)

12

dBrnCo

NPT

Transmit Noise Psophometric Weighted

(2) TXG=+3.52dB, GTX=-8.308dB (gain condition eqivalent to 0dBr with Zadm = 600 Ohm on the application)

(3)

The max value includes 125

µsec for the time slot synchronization

-68

dBm0p

DAX

B = 0, Z = 0, X = R = 1

462

587

µS

DPXM

Single Frequency Distortion

(Mu Law 0dBm0 Sinewave @ 1004Hz)

-46

dB

DPXA

Single Frequency Distortion

(A Law 0dBm0 Sinewave @ 820Hz)

-46

dB

GSPX

Out of Band Spurious Noise

61mVrms at VFXI

4200Hz to 72kHz

-39

dBm0